Started following some tutorial on att85 usi. Downloaded example code from make avr book.
This commit is contained in:
Dan
@@ -0,0 +1,196 @@
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##########------------------------------------------------------##########
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########## Project-specific Details ##########
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########## Check these every time you start a new project ##########
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##########------------------------------------------------------##########
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MCU = atmega168p
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F_CPU = 1000000UL
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BAUD = 9600UL
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## Also try BAUD = 19200 or 38400 if you're feeling lucky.
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## A directory for common include files and the simple USART library.
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## If you move either the current folder or the Library folder, you'll
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## need to change this path to match.
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LIBDIR = ../../AVR-Programming-Library
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##########------------------------------------------------------##########
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########## Programmer Defaults ##########
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########## Set up once, then forget about it ##########
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########## (Can override. See bottom of file.) ##########
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##########------------------------------------------------------##########
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PROGRAMMER_TYPE = usbtiny
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# extra arguments to avrdude: baud rate, chip type, -F flag, etc.
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PROGRAMMER_ARGS =
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##########------------------------------------------------------##########
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########## Program Locations ##########
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########## Won't need to change if they're in your PATH ##########
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##########------------------------------------------------------##########
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CC = avr-gcc
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OBJCOPY = avr-objcopy
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OBJDUMP = avr-objdump
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AVRSIZE = avr-size
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AVRDUDE = avrdude
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##########------------------------------------------------------##########
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########## Makefile Magic! ##########
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########## Summary: ##########
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########## We want a .hex file ##########
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||||
########## Compile source files into .elf ##########
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########## Convert .elf file into .hex ##########
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########## You shouldn't need to edit below. ##########
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##########------------------------------------------------------##########
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## The name of your project (without the .c)
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# TARGET = blinkLED
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## Or name it automatically after the enclosing directory
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TARGET = $(lastword $(subst /, ,$(CURDIR)))
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# Object files: will find all .c/.h files in current directory
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# and in LIBDIR. If you have any other (sub-)directories with code,
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# you can add them in to SOURCES below in the wildcard statement.
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SOURCES=$(wildcard *.c $(LIBDIR)/*.c)
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OBJECTS=$(SOURCES:.c=.o)
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HEADERS=$(SOURCES:.c=.h)
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## Compilation options, type man avr-gcc if you're curious.
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CPPFLAGS = -DF_CPU=$(F_CPU) -DBAUD=$(BAUD) -I. -I$(LIBDIR)
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CFLAGS = -Os -g -std=gnu99 -Wall
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## Use short (8-bit) data types
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CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
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## Splits up object files per function
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CFLAGS += -ffunction-sections -fdata-sections
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LDFLAGS = -Wl,-Map,$(TARGET).map
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## Optional, but often ends up with smaller code
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LDFLAGS += -Wl,--gc-sections
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## Relax shrinks code even more, but makes disassembly messy
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## LDFLAGS += -Wl,--relax
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## LDFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
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## LDFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
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TARGET_ARCH = -mmcu=$(MCU)
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## Explicit pattern rules:
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## To make .o files from .c files
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%.o: %.c $(HEADERS) Makefile
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$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -o $@ $<;
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$(TARGET).elf: $(OBJECTS)
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$(CC) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
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%.hex: %.elf
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$(OBJCOPY) -j .text -j .data -O ihex $< $@
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%.eeprom: %.elf
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$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
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%.lst: %.elf
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$(OBJDUMP) -S $< > $@
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## These targets don't have files named after them
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.PHONY: all disassemble disasm eeprom size clean squeaky_clean flash fuses
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all: $(TARGET).hex
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debug:
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@echo
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@echo "Source files:" $(SOURCES)
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@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
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@echo
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# Optionally create listing file from .elf
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# This creates approximate assembly-language equivalent of your code.
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# Useful for debugging time-sensitive bits,
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# or making sure the compiler does what you want.
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disassemble: $(TARGET).lst
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disasm: disassemble
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# Optionally show how big the resulting program is
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size: $(TARGET).elf
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$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
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clean:
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rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
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$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
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$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
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$(TARGET).eeprom
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squeaky_clean:
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rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~ *.eeprom
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##########------------------------------------------------------##########
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########## Programmer-specific details ##########
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########## Flashing code to AVR using avrdude ##########
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##########------------------------------------------------------##########
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flash: $(TARGET).hex
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
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## An alias
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program: flash
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flash_eeprom: $(TARGET).eeprom
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
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avrdude_terminal:
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
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## If you've got multiple programmers that you use,
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||||
## you can define them here so that it's easy to switch.
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||||
## To invoke, use something like `make flash_arduinoISP`
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flash_usbtiny: PROGRAMMER_TYPE = usbtiny
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flash_usbtiny: PROGRAMMER_ARGS = # USBTiny works with no further arguments
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flash_usbtiny: flash
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flash_usbasp: PROGRAMMER_TYPE = usbasp
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flash_usbasp: PROGRAMMER_ARGS = # USBasp works with no further arguments
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flash_usbasp: flash
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flash_arduinoISP: PROGRAMMER_TYPE = avrisp
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flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P /dev/ttyACM0
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## (for windows) flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P com5
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flash_arduinoISP: flash
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flash_109: PROGRAMMER_TYPE = avr109
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flash_109: PROGRAMMER_ARGS = -b 9600 -P /dev/ttyUSB0
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flash_109: flash
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##########------------------------------------------------------##########
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########## Fuse settings and suitable defaults ##########
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||||
##########------------------------------------------------------##########
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||||
|
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## Mega 48, 88, 168, 328 default values
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LFUSE = 0x62
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HFUSE = 0xdf
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EFUSE = 0x00
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||||
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## Generic
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FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
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fuses:
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
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$(PROGRAMMER_ARGS) $(FUSE_STRING)
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show_fuses:
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
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## Called with no extra definitions, sets to defaults
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set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
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set_default_fuses: fuses
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## Set the fuse byte for full-speed mode
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## Note: can also be set in firmware for modern chips
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set_fast_fuse: LFUSE = 0xE2
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set_fast_fuse: FUSE_STRING = -U lfuse:w:$(LFUSE):m
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set_fast_fuse: fuses
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## Set the EESAVE fuse byte to preserve EEPROM across flashes
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set_eeprom_save_fuse: HFUSE = 0xD7
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set_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
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set_eeprom_save_fuse: fuses
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## Clear the EESAVE fuse byte
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clear_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
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clear_eeprom_save_fuse: fuses
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@@ -0,0 +1,32 @@
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/* First steps into using program memory */
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#include <avr/io.h>
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#include <util/delay.h>
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#include <avr/pgmspace.h>
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#include "USART.h"
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const char myVeryLongString[] PROGMEM = "\r\nHi there, \
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this is an example of a long string.\r\n\
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The kind that you wouldn't want to store in RAM.\r\n";
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const uint16_t sixteenBits PROGMEM = 12345;
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int main(void) {
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initUSART();
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char oneLetter;
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uint8_t i;
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while (1) {
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for (i = 0; i < sizeof(myVeryLongString); i++) {
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oneLetter = pgm_read_byte(&(myVeryLongString[i]));
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transmitByte(oneLetter);
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_delay_ms(100); /* slow it down to simulate typing effect :) */
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}
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_delay_ms(1000);
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printWord(&sixteenBits); /* this throws a compiler warning... */
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transmitByte('\r');
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transmitByte('\n');
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printWord(pgm_read_word(&sixteenBits));
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} /* End event loop */
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return 0; /* This line is never reached */
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}
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@@ -0,0 +1,196 @@
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##########------------------------------------------------------##########
|
||||
########## Project-specific Details ##########
|
||||
########## Check these every time you start a new project ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
MCU = atmega168p
|
||||
F_CPU = 1000000UL
|
||||
BAUD = 9600UL
|
||||
## Also try BAUD = 19200 or 38400 if you're feeling lucky.
|
||||
|
||||
## A directory for common include files and the simple USART library.
|
||||
## If you move either the current folder or the Library folder, you'll
|
||||
## need to change this path to match.
|
||||
LIBDIR = ../../AVR-Programming-Library
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer Defaults ##########
|
||||
########## Set up once, then forget about it ##########
|
||||
########## (Can override. See bottom of file.) ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
PROGRAMMER_TYPE = usbtiny
|
||||
# extra arguments to avrdude: baud rate, chip type, -F flag, etc.
|
||||
PROGRAMMER_ARGS =
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Program Locations ##########
|
||||
########## Won't need to change if they're in your PATH ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
CC = avr-gcc
|
||||
OBJCOPY = avr-objcopy
|
||||
OBJDUMP = avr-objdump
|
||||
AVRSIZE = avr-size
|
||||
AVRDUDE = avrdude
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Makefile Magic! ##########
|
||||
########## Summary: ##########
|
||||
########## We want a .hex file ##########
|
||||
########## Compile source files into .elf ##########
|
||||
########## Convert .elf file into .hex ##########
|
||||
########## You shouldn't need to edit below. ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## The name of your project (without the .c)
|
||||
# TARGET = blinkLED
|
||||
## Or name it automatically after the enclosing directory
|
||||
TARGET = $(lastword $(subst /, ,$(CURDIR)))
|
||||
|
||||
# Object files: will find all .c/.h files in current directory
|
||||
# and in LIBDIR. If you have any other (sub-)directories with code,
|
||||
# you can add them in to SOURCES below in the wildcard statement.
|
||||
SOURCES=$(wildcard *.c $(LIBDIR)/*.c)
|
||||
OBJECTS=$(SOURCES:.c=.o)
|
||||
HEADERS=$(SOURCES:.c=.h)
|
||||
|
||||
## Compilation options, type man avr-gcc if you're curious.
|
||||
CPPFLAGS = -DF_CPU=$(F_CPU) -DBAUD=$(BAUD) -I. -I$(LIBDIR)
|
||||
CFLAGS = -Os -g -std=gnu99 -Wall
|
||||
## Use short (8-bit) data types
|
||||
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
|
||||
## Splits up object files per function
|
||||
CFLAGS += -ffunction-sections -fdata-sections
|
||||
LDFLAGS = -Wl,-Map,$(TARGET).map
|
||||
## Optional, but often ends up with smaller code
|
||||
LDFLAGS += -Wl,--gc-sections
|
||||
## Relax shrinks code even more, but makes disassembly messy
|
||||
## LDFLAGS += -Wl,--relax
|
||||
## LDFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
|
||||
## LDFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
|
||||
TARGET_ARCH = -mmcu=$(MCU)
|
||||
|
||||
## Explicit pattern rules:
|
||||
## To make .o files from .c files
|
||||
%.o: %.c $(HEADERS) Makefile
|
||||
$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -o $@ $<;
|
||||
|
||||
$(TARGET).elf: $(OBJECTS)
|
||||
$(CC) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
|
||||
|
||||
%.hex: %.elf
|
||||
$(OBJCOPY) -j .text -j .data -O ihex $< $@
|
||||
|
||||
%.eeprom: %.elf
|
||||
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
|
||||
|
||||
%.lst: %.elf
|
||||
$(OBJDUMP) -S $< > $@
|
||||
|
||||
## These targets don't have files named after them
|
||||
.PHONY: all disassemble disasm eeprom size clean squeaky_clean flash fuses
|
||||
|
||||
all: $(TARGET).hex
|
||||
|
||||
debug:
|
||||
@echo
|
||||
@echo "Source files:" $(SOURCES)
|
||||
@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
|
||||
@echo
|
||||
|
||||
# Optionally create listing file from .elf
|
||||
# This creates approximate assembly-language equivalent of your code.
|
||||
# Useful for debugging time-sensitive bits,
|
||||
# or making sure the compiler does what you want.
|
||||
disassemble: $(TARGET).lst
|
||||
|
||||
disasm: disassemble
|
||||
|
||||
# Optionally show how big the resulting program is
|
||||
size: $(TARGET).elf
|
||||
$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
|
||||
|
||||
clean:
|
||||
rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
|
||||
$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
|
||||
$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
|
||||
$(TARGET).eeprom
|
||||
|
||||
squeaky_clean:
|
||||
rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~ *.eeprom
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer-specific details ##########
|
||||
########## Flashing code to AVR using avrdude ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
flash: $(TARGET).hex
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
|
||||
|
||||
## An alias
|
||||
program: flash
|
||||
|
||||
flash_eeprom: $(TARGET).eeprom
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
|
||||
|
||||
avrdude_terminal:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
|
||||
|
||||
## If you've got multiple programmers that you use,
|
||||
## you can define them here so that it's easy to switch.
|
||||
## To invoke, use something like `make flash_arduinoISP`
|
||||
flash_usbtiny: PROGRAMMER_TYPE = usbtiny
|
||||
flash_usbtiny: PROGRAMMER_ARGS = # USBTiny works with no further arguments
|
||||
flash_usbtiny: flash
|
||||
|
||||
flash_usbasp: PROGRAMMER_TYPE = usbasp
|
||||
flash_usbasp: PROGRAMMER_ARGS = # USBasp works with no further arguments
|
||||
flash_usbasp: flash
|
||||
|
||||
flash_arduinoISP: PROGRAMMER_TYPE = avrisp
|
||||
flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P /dev/ttyACM0
|
||||
## (for windows) flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P com5
|
||||
flash_arduinoISP: flash
|
||||
|
||||
flash_109: PROGRAMMER_TYPE = avr109
|
||||
flash_109: PROGRAMMER_ARGS = -b 9600 -P /dev/ttyUSB0
|
||||
flash_109: flash
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Fuse settings and suitable defaults ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## Mega 48, 88, 168, 328 default values
|
||||
LFUSE = 0x62
|
||||
HFUSE = 0xdf
|
||||
EFUSE = 0x00
|
||||
|
||||
## Generic
|
||||
FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
|
||||
fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
|
||||
$(PROGRAMMER_ARGS) $(FUSE_STRING)
|
||||
show_fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
|
||||
|
||||
## Called with no extra definitions, sets to defaults
|
||||
set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
set_default_fuses: fuses
|
||||
|
||||
## Set the fuse byte for full-speed mode
|
||||
## Note: can also be set in firmware for modern chips
|
||||
set_fast_fuse: LFUSE = 0xE2
|
||||
set_fast_fuse: FUSE_STRING = -U lfuse:w:$(LFUSE):m
|
||||
set_fast_fuse: fuses
|
||||
|
||||
## Set the EESAVE fuse byte to preserve EEPROM across flashes
|
||||
set_eeprom_save_fuse: HFUSE = 0xD7
|
||||
set_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
set_eeprom_save_fuse: fuses
|
||||
|
||||
## Clear the EESAVE fuse byte
|
||||
clear_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
clear_eeprom_save_fuse: fuses
|
||||
@@ -0,0 +1,37 @@
|
||||
/* Second steps into using program memory */
|
||||
/* Storing the addresses in pointers */
|
||||
|
||||
#include <avr/io.h>
|
||||
#include <util/delay.h>
|
||||
#include <avr/pgmspace.h>
|
||||
#include "USART.h"
|
||||
|
||||
const char myVeryLongString[] PROGMEM = "\r\nHi there, \
|
||||
this is an example of a long string.\r\n\
|
||||
The kind that you wouldn't want to store in RAM.\r\n";
|
||||
const uint16_t sixteenBits PROGMEM = 12345;
|
||||
|
||||
int main(void) {
|
||||
initUSART();
|
||||
|
||||
const char *stringPointer;
|
||||
const uint16_t *wordPointer;
|
||||
uint8_t i;
|
||||
char oneLetter;
|
||||
|
||||
stringPointer = &myVeryLongString[0]; /* address of first char */
|
||||
// stringPointer = myVeryLongString; /* same as above */
|
||||
wordPointer = &sixteenBits; /* address of first byte */
|
||||
|
||||
while (1) {
|
||||
for (i = 0; i < sizeof(myVeryLongString); i++) {
|
||||
oneLetter = pgm_read_byte(stringPointer + i);
|
||||
transmitByte(oneLetter);
|
||||
_delay_ms(100); /* slow it down to simulate typing effect :) */
|
||||
}
|
||||
_delay_ms(1000);
|
||||
|
||||
printWord(pgm_read_word(wordPointer));
|
||||
} /* End event loop */
|
||||
return 0; /* This line is never reached */
|
||||
}
|
||||
@@ -0,0 +1,196 @@
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Project-specific Details ##########
|
||||
########## Check these every time you start a new project ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
MCU = atmega168p
|
||||
F_CPU = 1000000UL
|
||||
BAUD = 9600UL
|
||||
## Also try BAUD = 19200 or 38400 if you're feeling lucky.
|
||||
|
||||
## A directory for common include files and the simple USART library.
|
||||
## If you move either the current folder or the Library folder, you'll
|
||||
## need to change this path to match.
|
||||
LIBDIR = ../../AVR-Programming-Library
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer Defaults ##########
|
||||
########## Set up once, then forget about it ##########
|
||||
########## (Can override. See bottom of file.) ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
PROGRAMMER_TYPE = usbtiny
|
||||
# extra arguments to avrdude: baud rate, chip type, -F flag, etc.
|
||||
PROGRAMMER_ARGS =
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Program Locations ##########
|
||||
########## Won't need to change if they're in your PATH ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
CC = avr-gcc
|
||||
OBJCOPY = avr-objcopy
|
||||
OBJDUMP = avr-objdump
|
||||
AVRSIZE = avr-size
|
||||
AVRDUDE = avrdude
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Makefile Magic! ##########
|
||||
########## Summary: ##########
|
||||
########## We want a .hex file ##########
|
||||
########## Compile source files into .elf ##########
|
||||
########## Convert .elf file into .hex ##########
|
||||
########## You shouldn't need to edit below. ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## The name of your project (without the .c)
|
||||
# TARGET = blinkLED
|
||||
## Or name it automatically after the enclosing directory
|
||||
TARGET = $(lastword $(subst /, ,$(CURDIR)))
|
||||
|
||||
# Object files: will find all .c/.h files in current directory
|
||||
# and in LIBDIR. If you have any other (sub-)directories with code,
|
||||
# you can add them in to SOURCES below in the wildcard statement.
|
||||
SOURCES=$(wildcard *.c $(LIBDIR)/*.c)
|
||||
OBJECTS=$(SOURCES:.c=.o)
|
||||
HEADERS=$(SOURCES:.c=.h)
|
||||
|
||||
## Compilation options, type man avr-gcc if you're curious.
|
||||
CPPFLAGS = -DF_CPU=$(F_CPU) -DBAUD=$(BAUD) -I. -I$(LIBDIR)
|
||||
CFLAGS = -Os -g -std=gnu99 -Wall
|
||||
## Use short (8-bit) data types
|
||||
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
|
||||
## Splits up object files per function
|
||||
CFLAGS += -ffunction-sections -fdata-sections
|
||||
LDFLAGS = -Wl,-Map,$(TARGET).map
|
||||
## Optional, but often ends up with smaller code
|
||||
LDFLAGS += -Wl,--gc-sections
|
||||
## Relax shrinks code even more, but makes disassembly messy
|
||||
## LDFLAGS += -Wl,--relax
|
||||
## LDFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
|
||||
## LDFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
|
||||
TARGET_ARCH = -mmcu=$(MCU)
|
||||
|
||||
## Explicit pattern rules:
|
||||
## To make .o files from .c files
|
||||
%.o: %.c $(HEADERS) Makefile
|
||||
$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -o $@ $<;
|
||||
|
||||
$(TARGET).elf: $(OBJECTS)
|
||||
$(CC) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
|
||||
|
||||
%.hex: %.elf
|
||||
$(OBJCOPY) -j .text -j .data -O ihex $< $@
|
||||
|
||||
%.eeprom: %.elf
|
||||
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
|
||||
|
||||
%.lst: %.elf
|
||||
$(OBJDUMP) -S $< > $@
|
||||
|
||||
## These targets don't have files named after them
|
||||
.PHONY: all disassemble disasm eeprom size clean squeaky_clean flash fuses
|
||||
|
||||
all: $(TARGET).hex
|
||||
|
||||
debug:
|
||||
@echo
|
||||
@echo "Source files:" $(SOURCES)
|
||||
@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
|
||||
@echo
|
||||
|
||||
# Optionally create listing file from .elf
|
||||
# This creates approximate assembly-language equivalent of your code.
|
||||
# Useful for debugging time-sensitive bits,
|
||||
# or making sure the compiler does what you want.
|
||||
disassemble: $(TARGET).lst
|
||||
|
||||
disasm: disassemble
|
||||
|
||||
# Optionally show how big the resulting program is
|
||||
size: $(TARGET).elf
|
||||
$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
|
||||
|
||||
clean:
|
||||
rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
|
||||
$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
|
||||
$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
|
||||
$(TARGET).eeprom
|
||||
|
||||
squeaky_clean:
|
||||
rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~ *.eeprom
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer-specific details ##########
|
||||
########## Flashing code to AVR using avrdude ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
flash: $(TARGET).hex
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
|
||||
|
||||
## An alias
|
||||
program: flash
|
||||
|
||||
flash_eeprom: $(TARGET).eeprom
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
|
||||
|
||||
avrdude_terminal:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
|
||||
|
||||
## If you've got multiple programmers that you use,
|
||||
## you can define them here so that it's easy to switch.
|
||||
## To invoke, use something like `make flash_arduinoISP`
|
||||
flash_usbtiny: PROGRAMMER_TYPE = usbtiny
|
||||
flash_usbtiny: PROGRAMMER_ARGS = # USBTiny works with no further arguments
|
||||
flash_usbtiny: flash
|
||||
|
||||
flash_usbasp: PROGRAMMER_TYPE = usbasp
|
||||
flash_usbasp: PROGRAMMER_ARGS = # USBasp works with no further arguments
|
||||
flash_usbasp: flash
|
||||
|
||||
flash_arduinoISP: PROGRAMMER_TYPE = avrisp
|
||||
flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P /dev/ttyACM0
|
||||
## (for windows) flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P com5
|
||||
flash_arduinoISP: flash
|
||||
|
||||
flash_109: PROGRAMMER_TYPE = avr109
|
||||
flash_109: PROGRAMMER_ARGS = -b 9600 -P /dev/ttyUSB0
|
||||
flash_109: flash
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Fuse settings and suitable defaults ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## Mega 48, 88, 168, 328 default values
|
||||
LFUSE = 0x62
|
||||
HFUSE = 0xdf
|
||||
EFUSE = 0x00
|
||||
|
||||
## Generic
|
||||
FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
|
||||
fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
|
||||
$(PROGRAMMER_ARGS) $(FUSE_STRING)
|
||||
show_fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
|
||||
|
||||
## Called with no extra definitions, sets to defaults
|
||||
set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
set_default_fuses: fuses
|
||||
|
||||
## Set the fuse byte for full-speed mode
|
||||
## Note: can also be set in firmware for modern chips
|
||||
set_fast_fuse: LFUSE = 0xE2
|
||||
set_fast_fuse: FUSE_STRING = -U lfuse:w:$(LFUSE):m
|
||||
set_fast_fuse: fuses
|
||||
|
||||
## Set the EESAVE fuse byte to preserve EEPROM across flashes
|
||||
set_eeprom_save_fuse: HFUSE = 0xD7
|
||||
set_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
set_eeprom_save_fuse: fuses
|
||||
|
||||
## Clear the EESAVE fuse byte
|
||||
clear_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
clear_eeprom_save_fuse: fuses
|
||||
@@ -0,0 +1,33 @@
|
||||
/* Third step into using program memory */
|
||||
/* Passing pointers to functions */
|
||||
|
||||
#include <avr/io.h>
|
||||
#include <util/delay.h>
|
||||
#include <avr/pgmspace.h>
|
||||
#include "USART.h"
|
||||
|
||||
const char myVeryLongString1[] PROGMEM = "\r\nHi there, \
|
||||
this is an example of a long string.\r\n\
|
||||
The kind that you wouldn't want to store in RAM.\r\n";
|
||||
const char myVeryLongString2[] PROGMEM = "All work and no play \
|
||||
makes Jack something something.\r\n";
|
||||
|
||||
void printString_Progmem(const char *stringP) {
|
||||
char oneLetter;
|
||||
while ((oneLetter = pgm_read_byte(stringP))) {
|
||||
transmitByte(oneLetter);
|
||||
stringP++;
|
||||
_delay_ms(100); /* only b/c it's cute */
|
||||
}
|
||||
}
|
||||
|
||||
int main(void) {
|
||||
initUSART();
|
||||
while (1) {
|
||||
printString_Progmem(&myVeryLongString1[0]);
|
||||
printString_Progmem(&myVeryLongString1[50]);
|
||||
printString_Progmem(myVeryLongString2);
|
||||
_delay_ms(1000);
|
||||
} /* End event loop */
|
||||
return 0; /* This line is never reached */
|
||||
}
|
||||
@@ -0,0 +1,196 @@
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Project-specific Details ##########
|
||||
########## Check these every time you start a new project ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
MCU = atmega168p
|
||||
F_CPU = 1000000UL
|
||||
BAUD = 9600UL
|
||||
## Also try BAUD = 19200 or 38400 if you're feeling lucky.
|
||||
|
||||
## A directory for common include files and the simple USART library.
|
||||
## If you move either the current folder or the Library folder, you'll
|
||||
## need to change this path to match.
|
||||
LIBDIR = ../../AVR-Programming-Library
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer Defaults ##########
|
||||
########## Set up once, then forget about it ##########
|
||||
########## (Can override. See bottom of file.) ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
PROGRAMMER_TYPE = usbtiny
|
||||
# extra arguments to avrdude: baud rate, chip type, -F flag, etc.
|
||||
PROGRAMMER_ARGS =
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Program Locations ##########
|
||||
########## Won't need to change if they're in your PATH ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
CC = avr-gcc
|
||||
OBJCOPY = avr-objcopy
|
||||
OBJDUMP = avr-objdump
|
||||
AVRSIZE = avr-size
|
||||
AVRDUDE = avrdude
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Makefile Magic! ##########
|
||||
########## Summary: ##########
|
||||
########## We want a .hex file ##########
|
||||
########## Compile source files into .elf ##########
|
||||
########## Convert .elf file into .hex ##########
|
||||
########## You shouldn't need to edit below. ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## The name of your project (without the .c)
|
||||
# TARGET = blinkLED
|
||||
## Or name it automatically after the enclosing directory
|
||||
TARGET = $(lastword $(subst /, ,$(CURDIR)))
|
||||
|
||||
# Object files: will find all .c/.h files in current directory
|
||||
# and in LIBDIR. If you have any other (sub-)directories with code,
|
||||
# you can add them in to SOURCES below in the wildcard statement.
|
||||
SOURCES=$(wildcard *.c $(LIBDIR)/*.c)
|
||||
OBJECTS=$(SOURCES:.c=.o)
|
||||
HEADERS=$(SOURCES:.c=.h)
|
||||
|
||||
## Compilation options, type man avr-gcc if you're curious.
|
||||
CPPFLAGS = -DF_CPU=$(F_CPU) -DBAUD=$(BAUD) -I. -I$(LIBDIR)
|
||||
CFLAGS = -Os -g -std=gnu99 -Wall
|
||||
## Use short (8-bit) data types
|
||||
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
|
||||
## Splits up object files per function
|
||||
CFLAGS += -ffunction-sections -fdata-sections
|
||||
LDFLAGS = -Wl,-Map,$(TARGET).map
|
||||
## Optional, but often ends up with smaller code
|
||||
LDFLAGS += -Wl,--gc-sections
|
||||
## Relax shrinks code even more, but makes disassembly messy
|
||||
## LDFLAGS += -Wl,--relax
|
||||
## LDFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
|
||||
## LDFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
|
||||
TARGET_ARCH = -mmcu=$(MCU)
|
||||
|
||||
## Explicit pattern rules:
|
||||
## To make .o files from .c files
|
||||
%.o: %.c $(HEADERS) Makefile
|
||||
$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -o $@ $<;
|
||||
|
||||
$(TARGET).elf: $(OBJECTS)
|
||||
$(CC) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
|
||||
|
||||
%.hex: %.elf
|
||||
$(OBJCOPY) -j .text -j .data -O ihex $< $@
|
||||
|
||||
%.eeprom: %.elf
|
||||
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
|
||||
|
||||
%.lst: %.elf
|
||||
$(OBJDUMP) -S $< > $@
|
||||
|
||||
## These targets don't have files named after them
|
||||
.PHONY: all disassemble disasm eeprom size clean squeaky_clean flash fuses
|
||||
|
||||
all: $(TARGET).hex
|
||||
|
||||
debug:
|
||||
@echo
|
||||
@echo "Source files:" $(SOURCES)
|
||||
@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
|
||||
@echo
|
||||
|
||||
# Optionally create listing file from .elf
|
||||
# This creates approximate assembly-language equivalent of your code.
|
||||
# Useful for debugging time-sensitive bits,
|
||||
# or making sure the compiler does what you want.
|
||||
disassemble: $(TARGET).lst
|
||||
|
||||
disasm: disassemble
|
||||
|
||||
# Optionally show how big the resulting program is
|
||||
size: $(TARGET).elf
|
||||
$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
|
||||
|
||||
clean:
|
||||
rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
|
||||
$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
|
||||
$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
|
||||
$(TARGET).eeprom
|
||||
|
||||
squeaky_clean:
|
||||
rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~ *.eeprom
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer-specific details ##########
|
||||
########## Flashing code to AVR using avrdude ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
flash: $(TARGET).hex
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
|
||||
|
||||
## An alias
|
||||
program: flash
|
||||
|
||||
flash_eeprom: $(TARGET).eeprom
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
|
||||
|
||||
avrdude_terminal:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
|
||||
|
||||
## If you've got multiple programmers that you use,
|
||||
## you can define them here so that it's easy to switch.
|
||||
## To invoke, use something like `make flash_arduinoISP`
|
||||
flash_usbtiny: PROGRAMMER_TYPE = usbtiny
|
||||
flash_usbtiny: PROGRAMMER_ARGS = # USBTiny works with no further arguments
|
||||
flash_usbtiny: flash
|
||||
|
||||
flash_usbasp: PROGRAMMER_TYPE = usbasp
|
||||
flash_usbasp: PROGRAMMER_ARGS = # USBasp works with no further arguments
|
||||
flash_usbasp: flash
|
||||
|
||||
flash_arduinoISP: PROGRAMMER_TYPE = avrisp
|
||||
flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P /dev/ttyACM0
|
||||
## (for windows) flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P com5
|
||||
flash_arduinoISP: flash
|
||||
|
||||
flash_109: PROGRAMMER_TYPE = avr109
|
||||
flash_109: PROGRAMMER_ARGS = -b 9600 -P /dev/ttyUSB0
|
||||
flash_109: flash
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Fuse settings and suitable defaults ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## Mega 48, 88, 168, 328 default values
|
||||
LFUSE = 0x62
|
||||
HFUSE = 0xdf
|
||||
EFUSE = 0x00
|
||||
|
||||
## Generic
|
||||
FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
|
||||
fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
|
||||
$(PROGRAMMER_ARGS) $(FUSE_STRING)
|
||||
show_fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
|
||||
|
||||
## Called with no extra definitions, sets to defaults
|
||||
set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
set_default_fuses: fuses
|
||||
|
||||
## Set the fuse byte for full-speed mode
|
||||
## Note: can also be set in firmware for modern chips
|
||||
set_fast_fuse: LFUSE = 0xE2
|
||||
set_fast_fuse: FUSE_STRING = -U lfuse:w:$(LFUSE):m
|
||||
set_fast_fuse: fuses
|
||||
|
||||
## Set the EESAVE fuse byte to preserve EEPROM across flashes
|
||||
set_eeprom_save_fuse: HFUSE = 0xD7
|
||||
set_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
set_eeprom_save_fuse: fuses
|
||||
|
||||
## Clear the EESAVE fuse byte
|
||||
clear_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
clear_eeprom_save_fuse: fuses
|
||||
@@ -0,0 +1,36 @@
|
||||
/* Fourth step into using program memory */
|
||||
/* Passing data array pointers to functions */
|
||||
|
||||
#include <avr/io.h>
|
||||
#include <util/delay.h>
|
||||
#include <avr/pgmspace.h>
|
||||
#include "USART.h"
|
||||
|
||||
const uint16_t myData[] PROGMEM =
|
||||
{ 1111, 2222, 3333, 4444, 5555, 6666, 7777, 8888, 9999, 10000 };
|
||||
const uint16_t myData2[] PROGMEM = { 123, 456, 789, 012, 345, 678, 999 };
|
||||
|
||||
void printData_Progmem(const uint16_t * dataPointer, uint8_t length) {
|
||||
while (length) {
|
||||
printWord((uint16_t) dataPointer); /* print out address */
|
||||
printString(": ");
|
||||
printWord(pgm_read_word(dataPointer)); /* print out data */
|
||||
printString("\r\n");
|
||||
dataPointer++; /* move to next byte */
|
||||
length--; /* one less byte to go */
|
||||
_delay_ms(100);
|
||||
}
|
||||
}
|
||||
|
||||
int main(void) {
|
||||
initUSART();
|
||||
while (1) {
|
||||
printData_Progmem(myData, sizeof(myData) / 2);
|
||||
printString("\r\n");
|
||||
_delay_ms(1000);
|
||||
printData_Progmem(myData2, sizeof(myData2) / sizeof(myData2[0]));
|
||||
printString("\r\n");
|
||||
_delay_ms(1000);
|
||||
} /* End event loop */
|
||||
return 0; /* This line is never reached */
|
||||
}
|
||||
@@ -0,0 +1,196 @@
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Project-specific Details ##########
|
||||
########## Check these every time you start a new project ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
MCU = atmega168p
|
||||
F_CPU = 1000000UL
|
||||
BAUD = 9600UL
|
||||
## Also try BAUD = 19200 or 38400 if you're feeling lucky.
|
||||
|
||||
## A directory for common include files and the simple USART library.
|
||||
## If you move either the current folder or the Library folder, you'll
|
||||
## need to change this path to match.
|
||||
LIBDIR = ../../AVR-Programming-Library
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer Defaults ##########
|
||||
########## Set up once, then forget about it ##########
|
||||
########## (Can override. See bottom of file.) ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
PROGRAMMER_TYPE = usbtiny
|
||||
# extra arguments to avrdude: baud rate, chip type, -F flag, etc.
|
||||
PROGRAMMER_ARGS =
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Program Locations ##########
|
||||
########## Won't need to change if they're in your PATH ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
CC = avr-gcc
|
||||
OBJCOPY = avr-objcopy
|
||||
OBJDUMP = avr-objdump
|
||||
AVRSIZE = avr-size
|
||||
AVRDUDE = avrdude
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Makefile Magic! ##########
|
||||
########## Summary: ##########
|
||||
########## We want a .hex file ##########
|
||||
########## Compile source files into .elf ##########
|
||||
########## Convert .elf file into .hex ##########
|
||||
########## You shouldn't need to edit below. ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## The name of your project (without the .c)
|
||||
# TARGET = blinkLED
|
||||
## Or name it automatically after the enclosing directory
|
||||
TARGET = $(lastword $(subst /, ,$(CURDIR)))
|
||||
|
||||
# Object files: will find all .c/.h files in current directory
|
||||
# and in LIBDIR. If you have any other (sub-)directories with code,
|
||||
# you can add them in to SOURCES below in the wildcard statement.
|
||||
SOURCES=$(wildcard *.c $(LIBDIR)/*.c)
|
||||
OBJECTS=$(SOURCES:.c=.o)
|
||||
HEADERS=$(SOURCES:.c=.h)
|
||||
|
||||
## Compilation options, type man avr-gcc if you're curious.
|
||||
CPPFLAGS = -DF_CPU=$(F_CPU) -DBAUD=$(BAUD) -I. -I$(LIBDIR)
|
||||
CFLAGS = -Os -g -std=gnu99 -Wall
|
||||
## Use short (8-bit) data types
|
||||
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
|
||||
## Splits up object files per function
|
||||
CFLAGS += -ffunction-sections -fdata-sections
|
||||
LDFLAGS = -Wl,-Map,$(TARGET).map
|
||||
## Optional, but often ends up with smaller code
|
||||
LDFLAGS += -Wl,--gc-sections
|
||||
## Relax shrinks code even more, but makes disassembly messy
|
||||
## LDFLAGS += -Wl,--relax
|
||||
## LDFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
|
||||
## LDFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
|
||||
TARGET_ARCH = -mmcu=$(MCU)
|
||||
|
||||
## Explicit pattern rules:
|
||||
## To make .o files from .c files
|
||||
%.o: %.c $(HEADERS) Makefile
|
||||
$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -o $@ $<;
|
||||
|
||||
$(TARGET).elf: $(OBJECTS)
|
||||
$(CC) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
|
||||
|
||||
%.hex: %.elf
|
||||
$(OBJCOPY) -j .text -j .data -O ihex $< $@
|
||||
|
||||
%.eeprom: %.elf
|
||||
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
|
||||
|
||||
%.lst: %.elf
|
||||
$(OBJDUMP) -S $< > $@
|
||||
|
||||
## These targets don't have files named after them
|
||||
.PHONY: all disassemble disasm eeprom size clean squeaky_clean flash fuses
|
||||
|
||||
all: $(TARGET).hex
|
||||
|
||||
debug:
|
||||
@echo
|
||||
@echo "Source files:" $(SOURCES)
|
||||
@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
|
||||
@echo
|
||||
|
||||
# Optionally create listing file from .elf
|
||||
# This creates approximate assembly-language equivalent of your code.
|
||||
# Useful for debugging time-sensitive bits,
|
||||
# or making sure the compiler does what you want.
|
||||
disassemble: $(TARGET).lst
|
||||
|
||||
disasm: disassemble
|
||||
|
||||
# Optionally show how big the resulting program is
|
||||
size: $(TARGET).elf
|
||||
$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
|
||||
|
||||
clean:
|
||||
rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
|
||||
$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
|
||||
$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
|
||||
$(TARGET).eeprom
|
||||
|
||||
squeaky_clean:
|
||||
rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~ *.eeprom
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer-specific details ##########
|
||||
########## Flashing code to AVR using avrdude ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
flash: $(TARGET).hex
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
|
||||
|
||||
## An alias
|
||||
program: flash
|
||||
|
||||
flash_eeprom: $(TARGET).eeprom
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
|
||||
|
||||
avrdude_terminal:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
|
||||
|
||||
## If you've got multiple programmers that you use,
|
||||
## you can define them here so that it's easy to switch.
|
||||
## To invoke, use something like `make flash_arduinoISP`
|
||||
flash_usbtiny: PROGRAMMER_TYPE = usbtiny
|
||||
flash_usbtiny: PROGRAMMER_ARGS = # USBTiny works with no further arguments
|
||||
flash_usbtiny: flash
|
||||
|
||||
flash_usbasp: PROGRAMMER_TYPE = usbasp
|
||||
flash_usbasp: PROGRAMMER_ARGS = # USBasp works with no further arguments
|
||||
flash_usbasp: flash
|
||||
|
||||
flash_arduinoISP: PROGRAMMER_TYPE = avrisp
|
||||
flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P /dev/ttyACM0
|
||||
## (for windows) flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P com5
|
||||
flash_arduinoISP: flash
|
||||
|
||||
flash_109: PROGRAMMER_TYPE = avr109
|
||||
flash_109: PROGRAMMER_ARGS = -b 9600 -P /dev/ttyUSB0
|
||||
flash_109: flash
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Fuse settings and suitable defaults ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## Mega 48, 88, 168, 328 default values
|
||||
LFUSE = 0x62
|
||||
HFUSE = 0xdf
|
||||
EFUSE = 0x00
|
||||
|
||||
## Generic
|
||||
FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
|
||||
fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
|
||||
$(PROGRAMMER_ARGS) $(FUSE_STRING)
|
||||
show_fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
|
||||
|
||||
## Called with no extra definitions, sets to defaults
|
||||
set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
set_default_fuses: fuses
|
||||
|
||||
## Set the fuse byte for full-speed mode
|
||||
## Note: can also be set in firmware for modern chips
|
||||
set_fast_fuse: LFUSE = 0xE2
|
||||
set_fast_fuse: FUSE_STRING = -U lfuse:w:$(LFUSE):m
|
||||
set_fast_fuse: fuses
|
||||
|
||||
## Set the EESAVE fuse byte to preserve EEPROM across flashes
|
||||
set_eeprom_save_fuse: HFUSE = 0xD7
|
||||
set_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
set_eeprom_save_fuse: fuses
|
||||
|
||||
## Clear the EESAVE fuse byte
|
||||
clear_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
clear_eeprom_save_fuse: fuses
|
||||
@@ -0,0 +1,68 @@
|
||||
/* Fourth step into using program memory */
|
||||
/* Passing data array pointers to functions */
|
||||
|
||||
#include <avr/io.h>
|
||||
#include <util/delay.h>
|
||||
#include <avr/pgmspace.h>
|
||||
#include "USART.h"
|
||||
|
||||
const uint16_t myData[] PROGMEM =
|
||||
{ 1111, 2222, 3333, 4444, 5555, 6666, 7777, 8888, 9999, 10000 };
|
||||
|
||||
const char string1[] PROGMEM = "Hey, string one!\r\n";
|
||||
const char string2[] PROGMEM = "Oh my, string two!\r\n";
|
||||
const char *const stringIndex[] PROGMEM = { string1, string2 };
|
||||
|
||||
|
||||
void printData_Progmem(const uint16_t * dataPointer, uint8_t length) {
|
||||
while (length) {
|
||||
printWord((uint16_t) dataPointer); /* print out address */
|
||||
printString(": ");
|
||||
printWord(pgm_read_word(dataPointer)); /* print out data */
|
||||
printString("\r\n");
|
||||
dataPointer++; /* move to next byte */
|
||||
length--; /* one less byte to go */
|
||||
_delay_ms(100);
|
||||
}
|
||||
}
|
||||
void printString_Progmem(const char *stringP) {
|
||||
char oneLetter;
|
||||
while ((oneLetter = pgm_read_byte(stringP))) {
|
||||
transmitByte(oneLetter);
|
||||
stringP++;
|
||||
}
|
||||
}
|
||||
|
||||
int main(void) {
|
||||
initUSART();
|
||||
|
||||
uint8_t myArray[] = { 10, 11, 12 };
|
||||
uint8_t *p;
|
||||
uint8_t i;
|
||||
p = &myArray[0];
|
||||
for (i = 0; i < sizeof(myArray); i++) {
|
||||
printByte(*(p + i));
|
||||
printString("\r\n");
|
||||
_delay_ms(1000);
|
||||
}
|
||||
|
||||
|
||||
/* To use them: */
|
||||
char *stringPointer;
|
||||
/* Get the pointer to the string you want from PROGMEM */
|
||||
|
||||
stringPointer = (char *) pgm_read_word(&stringIndex[0]);
|
||||
printString_Progmem(stringPointer);
|
||||
/* or */
|
||||
stringPointer = (char *) pgm_read_word(&stringIndex[1]);
|
||||
printString_Progmem(&stringPointer[0]);
|
||||
/* or */
|
||||
printString_Progmem(PSTR("And this string got inlined.\r\n"));
|
||||
|
||||
while (1) {
|
||||
printData_Progmem(myData, sizeof(myData) / sizeof(myData[0]));
|
||||
printString("\r\n");
|
||||
_delay_ms(1000);
|
||||
} /* End event loop */
|
||||
return 0; /* This line is never reached */
|
||||
}
|
||||
@@ -0,0 +1,196 @@
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Project-specific Details ##########
|
||||
########## Check these every time you start a new project ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
MCU = atmega168p
|
||||
F_CPU = 8000000UL
|
||||
BAUD = 9600UL
|
||||
## Also try BAUD = 19200 or 38400 if you're feeling lucky.
|
||||
|
||||
## A directory for common include files and the simple USART library.
|
||||
## If you move either the current folder or the Library folder, you'll
|
||||
## need to change this path to match.
|
||||
LIBDIR = ../../AVR-Programming-Library
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer Defaults ##########
|
||||
########## Set up once, then forget about it ##########
|
||||
########## (Can override. See bottom of file.) ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
PROGRAMMER_TYPE = usbtiny
|
||||
# extra arguments to avrdude: baud rate, chip type, -F flag, etc.
|
||||
PROGRAMMER_ARGS =
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Program Locations ##########
|
||||
########## Won't need to change if they're in your PATH ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
CC = avr-gcc
|
||||
OBJCOPY = avr-objcopy
|
||||
OBJDUMP = avr-objdump
|
||||
AVRSIZE = avr-size
|
||||
AVRDUDE = avrdude
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Makefile Magic! ##########
|
||||
########## Summary: ##########
|
||||
########## We want a .hex file ##########
|
||||
########## Compile source files into .elf ##########
|
||||
########## Convert .elf file into .hex ##########
|
||||
########## You shouldn't need to edit below. ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## The name of your project (without the .c)
|
||||
# TARGET = blinkLED
|
||||
## Or name it automatically after the enclosing directory
|
||||
TARGET = $(lastword $(subst /, ,$(CURDIR)))
|
||||
|
||||
# Object files: will find all .c/.h files in current directory
|
||||
# and in LIBDIR. If you have any other (sub-)directories with code,
|
||||
# you can add them in to SOURCES below in the wildcard statement.
|
||||
SOURCES=$(wildcard *.c $(LIBDIR)/*.c)
|
||||
OBJECTS=$(SOURCES:.c=.o)
|
||||
HEADERS=$(SOURCES:.c=.h)
|
||||
|
||||
## Compilation options, type man avr-gcc if you're curious.
|
||||
CPPFLAGS = -DF_CPU=$(F_CPU) -DBAUD=$(BAUD) -I. -I$(LIBDIR)
|
||||
CFLAGS = -Os -g -std=gnu99 -Wall
|
||||
## Use short (8-bit) data types
|
||||
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
|
||||
## Splits up object files per function
|
||||
CFLAGS += -ffunction-sections -fdata-sections
|
||||
LDFLAGS = -Wl,-Map,$(TARGET).map
|
||||
## Optional, but often ends up with smaller code
|
||||
LDFLAGS += -Wl,--gc-sections
|
||||
## Relax shrinks code even more, but makes disassembly messy
|
||||
## LDFLAGS += -Wl,--relax
|
||||
## LDFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
|
||||
## LDFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
|
||||
TARGET_ARCH = -mmcu=$(MCU)
|
||||
|
||||
## Explicit pattern rules:
|
||||
## To make .o files from .c files
|
||||
%.o: %.c $(HEADERS) Makefile
|
||||
$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -o $@ $<;
|
||||
|
||||
$(TARGET).elf: $(OBJECTS)
|
||||
$(CC) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
|
||||
|
||||
%.hex: %.elf
|
||||
$(OBJCOPY) -j .text -j .data -O ihex $< $@
|
||||
|
||||
%.eeprom: %.elf
|
||||
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
|
||||
|
||||
%.lst: %.elf
|
||||
$(OBJDUMP) -S $< > $@
|
||||
|
||||
## These targets don't have files named after them
|
||||
.PHONY: all disassemble disasm eeprom size clean squeaky_clean flash fuses
|
||||
|
||||
all: $(TARGET).hex
|
||||
|
||||
debug:
|
||||
@echo
|
||||
@echo "Source files:" $(SOURCES)
|
||||
@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
|
||||
@echo
|
||||
|
||||
# Optionally create listing file from .elf
|
||||
# This creates approximate assembly-language equivalent of your code.
|
||||
# Useful for debugging time-sensitive bits,
|
||||
# or making sure the compiler does what you want.
|
||||
disassemble: $(TARGET).lst
|
||||
|
||||
disasm: disassemble
|
||||
|
||||
# Optionally show how big the resulting program is
|
||||
size: $(TARGET).elf
|
||||
$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
|
||||
|
||||
clean:
|
||||
rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
|
||||
$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
|
||||
$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
|
||||
$(TARGET).eeprom
|
||||
|
||||
squeaky_clean:
|
||||
rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~ *.eeprom
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer-specific details ##########
|
||||
########## Flashing code to AVR using avrdude ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
flash: $(TARGET).hex
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
|
||||
|
||||
## An alias
|
||||
program: flash
|
||||
|
||||
flash_eeprom: $(TARGET).eeprom
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
|
||||
|
||||
avrdude_terminal:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
|
||||
|
||||
## If you've got multiple programmers that you use,
|
||||
## you can define them here so that it's easy to switch.
|
||||
## To invoke, use something like `make flash_arduinoISP`
|
||||
flash_usbtiny: PROGRAMMER_TYPE = usbtiny
|
||||
flash_usbtiny: PROGRAMMER_ARGS = # USBTiny works with no further arguments
|
||||
flash_usbtiny: flash
|
||||
|
||||
flash_usbasp: PROGRAMMER_TYPE = usbasp
|
||||
flash_usbasp: PROGRAMMER_ARGS = # USBasp works with no further arguments
|
||||
flash_usbasp: flash
|
||||
|
||||
flash_arduinoISP: PROGRAMMER_TYPE = avrisp
|
||||
flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P /dev/ttyACM0
|
||||
## (for windows) flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P com5
|
||||
flash_arduinoISP: flash
|
||||
|
||||
flash_109: PROGRAMMER_TYPE = avr109
|
||||
flash_109: PROGRAMMER_ARGS = -b 9600 -P /dev/ttyUSB0
|
||||
flash_109: flash
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Fuse settings and suitable defaults ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## Mega 48, 88, 168, 328 default values
|
||||
LFUSE = 0x62
|
||||
HFUSE = 0xdf
|
||||
EFUSE = 0x00
|
||||
|
||||
## Generic
|
||||
FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
|
||||
fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
|
||||
$(PROGRAMMER_ARGS) $(FUSE_STRING)
|
||||
show_fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
|
||||
|
||||
## Called with no extra definitions, sets to defaults
|
||||
set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
set_default_fuses: fuses
|
||||
|
||||
## Set the fuse byte for full-speed mode
|
||||
## Note: can also be set in firmware for modern chips
|
||||
set_fast_fuse: LFUSE = 0xE2
|
||||
set_fast_fuse: FUSE_STRING = -U lfuse:w:$(LFUSE):m
|
||||
set_fast_fuse: fuses
|
||||
|
||||
## Set the EESAVE fuse byte to preserve EEPROM across flashes
|
||||
set_eeprom_save_fuse: HFUSE = 0xD7
|
||||
set_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
set_eeprom_save_fuse: fuses
|
||||
|
||||
## Clear the EESAVE fuse byte
|
||||
clear_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
clear_eeprom_save_fuse: fuses
|
||||
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,186 @@
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Project-specific Details ##########
|
||||
########## Check these every time you start a new project ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
MCU = atmega168
|
||||
F_CPU = 8000000
|
||||
BAUD = 9600
|
||||
## Also try BAUD = 19200 or 38400 if you're feeling lucky.
|
||||
|
||||
## This is where your main() routine lives (without .c extension)
|
||||
TARGET = speech_1_bit_diff
|
||||
## If you've split your program into multiple .c / .h files,
|
||||
## include the additional source here (without the .c or .h extension)
|
||||
LOCAL_SOURCE =
|
||||
|
||||
EXTRA_SOURCE_DIR = ../../../learningAVR/
|
||||
EXTRA_SOURCE_FILES = USART
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer Defaults ##########
|
||||
########## Set up once, then forget about it ##########
|
||||
########## (Can override. See bottom of file.) ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
PROGRAMMER_TYPE = usbtiny
|
||||
# extra arguments to avrdude: baud rate, chip type, -F flag, etc.
|
||||
PROGRAMMER_ARGS =
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Makefile Magic! ##########
|
||||
########## Summary: ##########
|
||||
########## We want a .hex file ##########
|
||||
########## Compile source files into .elf ##########
|
||||
########## Convert .elf file into .hex ##########
|
||||
########## You shouldn't need to edit below. ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## Defined programs / locations
|
||||
CC = avr-gcc
|
||||
OBJCOPY = avr-objcopy
|
||||
OBJDUMP = avr-objdump
|
||||
AVRSIZE = avr-size
|
||||
AVRDUDE = avrdude
|
||||
|
||||
## Compilation options, type man avr-gcc if you're curious.
|
||||
CFLAGS = -mmcu=$(MCU) -DF_CPU=$(F_CPU)UL -DBAUD=$(BAUD) -Os -I. -I$(EXTRA_SOURCE_DIR)
|
||||
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
|
||||
CFLAGS += -Wall -Wstrict-prototypes
|
||||
CFLAGS += -g -ggdb
|
||||
CFLAGS += -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--relax
|
||||
CFLAGS += -std=gnu99
|
||||
## CFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
|
||||
## CFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
|
||||
|
||||
## Lump target and extra source files together
|
||||
TARGET = $(strip $(basename $(MAIN)))
|
||||
SRC = $(TARGET).c
|
||||
EXTRA_SOURCE = $(addprefix $(EXTRA_SOURCE_DIR), $(EXTRA_SOURCE_FILES))
|
||||
SRC += $(EXTRA_SOURCE)
|
||||
SRC += $(LOCAL_SOURCE)
|
||||
|
||||
## List of all header files
|
||||
HEADERS = $(SRC:.c=.h)
|
||||
|
||||
## For every .c file, compile an .o object file
|
||||
OBJ = $(SRC:.c=.o)
|
||||
|
||||
## Generic Makefile targets. (Only .hex file is necessary)
|
||||
all: $(TARGET).hex
|
||||
|
||||
%.hex: %.elf
|
||||
$(OBJCOPY) -R .eeprom -O ihex $< $@
|
||||
|
||||
%.elf: $(SRC)
|
||||
$(CC) $(CFLAGS) $(SRC) --output $@
|
||||
|
||||
%.eeprom: %.elf
|
||||
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
|
||||
|
||||
debug:
|
||||
@echo
|
||||
@echo "Source files:" $(SRC)
|
||||
@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
|
||||
@echo
|
||||
|
||||
# Optionally create listing file from .elf
|
||||
# This creates approximate assembly-language equivalent of your code.
|
||||
# Useful for debugging time-sensitive bits,
|
||||
# or making sure the compiler does what you want.
|
||||
disassemble: $(TARGET).lst
|
||||
|
||||
disasm: disassemble
|
||||
|
||||
eeprom: $(TARGET).eeprom
|
||||
|
||||
%.lst: %.elf
|
||||
$(OBJDUMP) -S $< > $@
|
||||
|
||||
# Optionally show how big the resulting program is
|
||||
size: $(TARGET).elf
|
||||
$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
|
||||
|
||||
clean:
|
||||
rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
|
||||
$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
|
||||
$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
|
||||
$(TARGET).eeprom
|
||||
|
||||
squeaky_clean:
|
||||
rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer-specific details ##########
|
||||
########## Flashing code to AVR using avrdude ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
flash: $(TARGET).hex
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
|
||||
|
||||
## An alias
|
||||
program: flash
|
||||
|
||||
flash_eeprom: $(TARGET).eeprom
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
|
||||
|
||||
avrdude_terminal:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
|
||||
|
||||
## If you've got multiple programmers that you use,
|
||||
## you can define them here so that it's easy to switch.
|
||||
## To invoke, use something like `make flash_arduinoISP`
|
||||
flash_usbtiny: PROGRAMMER_TYPE = usbtiny
|
||||
flash_usbtiny: PROGRAMMER_ARGS = # USBTiny works with no further arguments
|
||||
flash_usbtiny: flash
|
||||
|
||||
flash_usbasp: PROGRAMMER_TYPE = usbasp
|
||||
flash_usbasp: PROGRAMMER_ARGS = # USBasp works with no further arguments
|
||||
flash_usbasp: flash
|
||||
|
||||
flash_arduinoISP: PROGRAMMER_TYPE = avrisp
|
||||
flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P /dev/ttyACM0
|
||||
## (for windows) flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P com5
|
||||
flash_arduinoISP: flash
|
||||
|
||||
flash_109: PROGRAMMER_TYPE = avr109
|
||||
flash_109: PROGRAMMER_ARGS = -b 9600 -P /dev/ttyUSB0
|
||||
flash_109: flash
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Fuse settings and suitable defaults ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## Mega 48, 88, 168, 328 default values
|
||||
LFUSE = 0x62
|
||||
HFUSE = 0xdf
|
||||
EFUSE = 0x00
|
||||
|
||||
## Generic
|
||||
FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
|
||||
fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
|
||||
$(PROGRAMMER_ARGS) $(FUSE_STRING)
|
||||
show_fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
|
||||
|
||||
## Called with no extra definitions, sets to defaults
|
||||
set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
set_default_fuses: fuses
|
||||
|
||||
## Set the fuse byte for full-speed mode
|
||||
## Note: can also be set in firmware for modern chips
|
||||
set_fast_fuse: LFUSE = 0xE2
|
||||
set_fast_fuse: FUSE_STRING = -U lfuse:w:$(LFUSE):m
|
||||
set_fast_fuse: fuses
|
||||
|
||||
## Set the EESAVE fuse byte to preserve EEPROM across flashes
|
||||
set_eeprom_save_fuse: HFUSE = 0xD7
|
||||
set_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
set_eeprom_save_fuse: fuses
|
||||
|
||||
## Clear the EESAVE fuse byte
|
||||
clear_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
clear_eeprom_save_fuse: fuses
|
||||
@@ -0,0 +1,84 @@
|
||||
|
||||
% Speech encoder for Mega644/GCC decoder
|
||||
clear all
|
||||
|
||||
%===================================%the Encoder
|
||||
[d,r] = wavread('mega644small.wav'); %4
|
||||
%scale to about unity
|
||||
res = 1/(max(max(d),abs(min(d)) ));
|
||||
dd = diff(d * res);
|
||||
%init the code vector
|
||||
ddcode = zeros(1,length(dd));
|
||||
|
||||
brkpt1= 0 ;
|
||||
%quantize the first derivative
|
||||
ddcode(find(dd<brkpt1)) = 0;
|
||||
ddcode(find(dd>=brkpt1)) = 1;
|
||||
|
||||
%make the length of ddcode a multiple of 8
|
||||
ddcode = [ddcode,zeros(1,8-mod(length(ddcode),8))];
|
||||
length(ddcode)
|
||||
index=1;
|
||||
for i=1:8:length(ddcode)
|
||||
packed(index)= ...
|
||||
ddcode(i)*128 + ddcode(i+1)*64 + ...
|
||||
ddcode(i+2)*32 + ddcode(i+3)*16 + ...
|
||||
ddcode(i+4)*8 + ddcode(i+5)*4 + ...
|
||||
ddcode(i+6)*2 + ddcode(i+7) ;
|
||||
index=index+1;
|
||||
end
|
||||
%make a textfile with GCC source code in it.
|
||||
fname='mega644_1_bit.h';
|
||||
fid = fopen(fname,'w');
|
||||
fprintf(fid,'const prog_uint8_t mega644[%d]={\r',length(packed));
|
||||
for i=1:length(packed)-1
|
||||
fprintf(fid,' %5d,\r',packed(i));
|
||||
end
|
||||
fprintf(fid,' %5d};\r',packed(end));
|
||||
fclose(fid);
|
||||
|
||||
%===================================%the Decoder
|
||||
%value based on quantizer
|
||||
value = [-.16, .16];
|
||||
dl(1)=0;
|
||||
j=2;
|
||||
highpassfactor = 1/8;
|
||||
for i=1:length(packed)
|
||||
p1 = round(bitand(packed(i),128)/128);
|
||||
p2 = round(bitand(packed(i),64)/64);
|
||||
p3 = round(bitand(packed(i),32)/32);
|
||||
p4 = round(bitand(packed(i),16)/16);
|
||||
p5 = round(bitand(packed(i),8)/8);
|
||||
p6 = round(bitand(packed(i),4)/4);
|
||||
p7 = round(bitand(packed(i),2)/2);
|
||||
p8 = round(bitand(packed(i),1)/1);
|
||||
|
||||
%note that a bit of highpass has been added to reduce drift
|
||||
dl(j) = dl(j-1)+ value(p1+1) - highpassfactor * dl(j-1);
|
||||
j=j+1;
|
||||
dl(j) = dl(j-1)+ value(p2+1) - highpassfactor * dl(j-1);
|
||||
j=j+1;
|
||||
dl(j) = dl(j-1)+ value(p3+1) - highpassfactor * dl(j-1);
|
||||
j=j+1;
|
||||
dl(j) = dl(j-1)+ value(p4+1) - highpassfactor * dl(j-1);
|
||||
j=j+1;
|
||||
dl(j) = dl(j-1)+ value(p5+1) - highpassfactor * dl(j-1);
|
||||
j=j+1;
|
||||
dl(j) = dl(j-1)+ value(p6+1) - highpassfactor * dl(j-1);
|
||||
j=j+1;
|
||||
dl(j) = dl(j-1)+ value(p7+1) - highpassfactor * dl(j-1);
|
||||
j=j+1;
|
||||
dl(j) = dl(j-1)+ value(p8+1) - highpassfactor * dl(j-1);
|
||||
j=j+1;
|
||||
end
|
||||
% dl(1)=0;
|
||||
% for i=1:length(ddcode)
|
||||
% dl(i) = dl(i-1)+ value(ddcode(i)+1) - .125*dl(i-1); % .* w';
|
||||
% end
|
||||
|
||||
%return
|
||||
%====================================%playback and graphing
|
||||
% sound(dl,r);
|
||||
dl = dl/(max(abs(dl))+.001);
|
||||
wavwrite(dl', 'mega644_1_bit.wav');
|
||||
|
||||
Binary file not shown.
File diff suppressed because one or more lines are too long
@@ -0,0 +1,113 @@
|
||||
//Voice decompressor example
|
||||
#include <inttypes.h>
|
||||
#include <avr/io.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include <util/delay.h>
|
||||
#include <avr/pgmspace.h>
|
||||
#include "USART.h"
|
||||
|
||||
#define TableSize 3280 //refers to the following incl file
|
||||
//Contains the packed 1-bit codes for syntehsis
|
||||
#include "mega644_1_bit.h"
|
||||
|
||||
//reconstruction differentials
|
||||
//volatile signed char PCMvalue[4] = {-78, -16, 16, 78};
|
||||
volatile signed char PCMvalue[2] = {-10, 10};
|
||||
|
||||
volatile unsigned int outI, tableI; //indexes
|
||||
volatile unsigned char cycle ; //decode phase counter
|
||||
volatile signed char out, lastout, newvalue; //output values
|
||||
volatile unsigned char p1,p2,p3,p4,p5,p6,p7,p8; //hold 8 differentials
|
||||
volatile unsigned char packed ; //byte containing 4 2-bit values
|
||||
volatile uint8_t speaking; /* flag for whether currently speaking or not */
|
||||
|
||||
//generate waveform at 7812 scamples/sec
|
||||
ISR (TIMER2_COMPA_vect){
|
||||
//compute next sample
|
||||
cycle = outI & 7; // outI modulo 8
|
||||
if (cycle==0) //do we need to unpack more data?
|
||||
{
|
||||
if (tableI<TableSize) //} of stored wave?
|
||||
{
|
||||
//unpack a table entry into 2-bit indexs
|
||||
// pgm_read_byte (address_short)
|
||||
packed = pgm_read_byte(&mega644[tableI]) ;
|
||||
//packed = DPCMAllDigits[tableI];
|
||||
p1 = (packed & 128) == 128 ;
|
||||
p2 = (packed & 64) == 64 ;
|
||||
p3 = (packed & 32) == 32 ;
|
||||
p4 = (packed & 16) == 16 ;
|
||||
p5 = (packed & 8) == 8 ;
|
||||
p6 = (packed & 4) == 4 ;
|
||||
p7 = (packed & 2) == 2 ;
|
||||
p8 = (packed & 1) == 1 ;
|
||||
tableI++ ;
|
||||
} //end unpack table entry
|
||||
//compute the output and send to PWM
|
||||
newvalue = PCMvalue[p1] ;
|
||||
}
|
||||
else if (cycle==1) //don't need to unpack yet--just ouput
|
||||
newvalue = PCMvalue[p2] ;
|
||||
else if (cycle==2)
|
||||
newvalue = PCMvalue[p3] ;
|
||||
else if (cycle==3)
|
||||
newvalue = PCMvalue[p4] ;
|
||||
else if (cycle==4)
|
||||
newvalue = PCMvalue[p5] ;
|
||||
else if (cycle==5)
|
||||
newvalue = PCMvalue[p6] ;
|
||||
else if (cycle==6)
|
||||
newvalue = PCMvalue[p7] ;
|
||||
else if (cycle==7)
|
||||
newvalue = PCMvalue[p8] ;
|
||||
|
||||
out = lastout + newvalue - (lastout>>3);
|
||||
//update outputs
|
||||
OCR0A = out + 128;
|
||||
lastout = out;
|
||||
outI++;
|
||||
//at end, turn off TCCRO
|
||||
if (tableI==TableSize) TCCR2B = 0;
|
||||
} //ISR
|
||||
|
||||
int main(void){
|
||||
DDRD |= (1<<PD6);
|
||||
DDRB |= (1<<PB0);
|
||||
// turn on pwm with period= 256 cycles
|
||||
// (62,500 samples/sec) in fast PWM mode.
|
||||
// BUT OCR0A update is done using timer2 at 7800/sec
|
||||
// timer 0 runs at full rate set in MAIN loop; TCCR0B = 1 ;
|
||||
// turn on fast PWM and OC0A output
|
||||
// 16 microsec per PWM cycle sample time
|
||||
TCCR0A = (1<<COM0A0) | (1<<COM0A1) | (1<<WGM00) | (1<<WGM01) ;
|
||||
OCR0A = 128 ; // initialize PWM to half full scale
|
||||
TCCR0B = (1<<CS00); /* full speed */
|
||||
// turn on timer2 set to overflow at 7812 Hz
|
||||
// (prescaler set to divide by 8)
|
||||
TCCR2A = (1<<WGM21); /* CTC, count to OCR2A */
|
||||
OCR2A = 128; /* control sample playback frequency */
|
||||
TCCR2B = (1<<CS21); /* clock source / 8 = 1MHz */
|
||||
TIMSK2 = (1<<OCIE2A); // turn on compare interrupt
|
||||
|
||||
sei();
|
||||
|
||||
while(1) {
|
||||
|
||||
//init the output indexes
|
||||
outI = 0;
|
||||
tableI = 0;
|
||||
//init the ouptut value
|
||||
lastout = 0;
|
||||
// turn on PWM
|
||||
TCCR2B = (1<<CS21);
|
||||
//wait until the speech is done then
|
||||
//time delay the next utterance.
|
||||
while (TCCR2B>0){};
|
||||
OCR0A = 128 ;
|
||||
_delay_ms(500);
|
||||
PORTB ^= (1<<PB0);
|
||||
|
||||
} // end while
|
||||
} //end main
|
||||
|
||||
|
||||
@@ -0,0 +1,3 @@
|
||||
*.wav
|
||||
DPCM*.h
|
||||
|
||||
@@ -0,0 +1,24 @@
|
||||
clear all
|
||||
%use an optimizer to find the best parameters
|
||||
%for an utterance
|
||||
%The encoder/decoder go into an iterative scheme to find the
|
||||
%best 3 break points and 4 reconstruction values
|
||||
%===================================%the Encoder
|
||||
[d,r] = wavread('C:\Documents and Settings\bruce land\My Documents\Matlab\Speech\SineSynth\test4small.WAV'); %4
|
||||
%scale to about unity
|
||||
res = 1/(max(max(d),abs(min(d)) ));
|
||||
dd = diff(d * res);
|
||||
|
||||
%parameters
|
||||
value = [-.16, -.026 .026 .16];
|
||||
brkpt1=-0.05; brkpt2=0 ; brkpt3=0.05;
|
||||
%initial parameter guess
|
||||
p0 = [brkpt1, brkpt2, brkpt3, ...
|
||||
value(1),value(2),value(3),value(4) ];
|
||||
|
||||
p = fminsearch(@FindOpt,p0,[],d,dd);
|
||||
%ChiMin = fmins ('chisq', density0, options, [], smat, observed,
|
||||
%fixdensity);
|
||||
|
||||
%=================================%print parameters
|
||||
p
|
||||
@@ -0,0 +1,16 @@
|
||||
function fit = FindOpt(p,d,dd)
|
||||
p
|
||||
%init the code vector
|
||||
ddcode = zeros(1,length(dd));
|
||||
%quantize the first derivative
|
||||
ddcode(find(dd<p(1)))=0;
|
||||
ddcode(find(dd>=p(1) & dd<p(2)))=1;
|
||||
ddcode(find(dd>=p(2) & dd<p(3)))=2;
|
||||
ddcode(find(dd>=p(3)))=3;
|
||||
|
||||
dl = zeros(1,length(ddcode));
|
||||
for i=2:length(ddcode)
|
||||
dl(i) = dl(i-1)+ p(ddcode(i)+4) - .125*dl(i-1); % .* w';
|
||||
end
|
||||
|
||||
fit = mean((d(2:end)-dl').^2);
|
||||
@@ -0,0 +1,186 @@
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Project-specific Details ##########
|
||||
########## Check these every time you start a new project ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
MCU = atmega168
|
||||
F_CPU = 8000000
|
||||
BAUD = 9600
|
||||
## Also try BAUD = 19200 or 38400 if you're feeling lucky.
|
||||
|
||||
## This is where your main() routine lives (without .c extension)
|
||||
TARGET = speech_644_GCC
|
||||
## If you've split your program into multiple .c / .h files,
|
||||
## include the additional source here (without the .c or .h extension)
|
||||
LOCAL_SOURCE =
|
||||
|
||||
EXTRA_SOURCE_DIR = ../../../learningAVR/
|
||||
EXTRA_SOURCE_FILES = USART
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer Defaults ##########
|
||||
########## Set up once, then forget about it ##########
|
||||
########## (Can override. See bottom of file.) ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
PROGRAMMER_TYPE = usbtiny
|
||||
# extra arguments to avrdude: baud rate, chip type, -F flag, etc.
|
||||
PROGRAMMER_ARGS =
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Makefile Magic! ##########
|
||||
########## Summary: ##########
|
||||
########## We want a .hex file ##########
|
||||
########## Compile source files into .elf ##########
|
||||
########## Convert .elf file into .hex ##########
|
||||
########## You shouldn't need to edit below. ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## Defined programs / locations
|
||||
CC = avr-gcc
|
||||
OBJCOPY = avr-objcopy
|
||||
OBJDUMP = avr-objdump
|
||||
AVRSIZE = avr-size
|
||||
AVRDUDE = avrdude
|
||||
|
||||
## Compilation options, type man avr-gcc if you're curious.
|
||||
CFLAGS = -mmcu=$(MCU) -DF_CPU=$(F_CPU)UL -DBAUD=$(BAUD) -Os -I. -I$(EXTRA_SOURCE_DIR)
|
||||
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
|
||||
CFLAGS += -Wall -Wstrict-prototypes
|
||||
CFLAGS += -g -ggdb
|
||||
CFLAGS += -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--relax
|
||||
CFLAGS += -std=gnu99
|
||||
## CFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
|
||||
## CFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
|
||||
|
||||
## Lump target and extra source files together
|
||||
TARGET = $(strip $(basename $(MAIN)))
|
||||
SRC = $(TARGET).c
|
||||
EXTRA_SOURCE = $(addprefix $(EXTRA_SOURCE_DIR), $(EXTRA_SOURCE_FILES))
|
||||
SRC += $(EXTRA_SOURCE)
|
||||
SRC += $(LOCAL_SOURCE)
|
||||
|
||||
## List of all header files
|
||||
HEADERS = $(SRC:.c=.h)
|
||||
|
||||
## For every .c file, compile an .o object file
|
||||
OBJ = $(SRC:.c=.o)
|
||||
|
||||
## Generic Makefile targets. (Only .hex file is necessary)
|
||||
all: $(TARGET).hex
|
||||
|
||||
%.hex: %.elf
|
||||
$(OBJCOPY) -R .eeprom -O ihex $< $@
|
||||
|
||||
%.elf: $(SRC)
|
||||
$(CC) $(CFLAGS) $(SRC) --output $@
|
||||
|
||||
%.eeprom: %.elf
|
||||
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
|
||||
|
||||
debug:
|
||||
@echo
|
||||
@echo "Source files:" $(SRC)
|
||||
@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
|
||||
@echo
|
||||
|
||||
# Optionally create listing file from .elf
|
||||
# This creates approximate assembly-language equivalent of your code.
|
||||
# Useful for debugging time-sensitive bits,
|
||||
# or making sure the compiler does what you want.
|
||||
disassemble: $(TARGET).lst
|
||||
|
||||
disasm: disassemble
|
||||
|
||||
eeprom: $(TARGET).eeprom
|
||||
|
||||
%.lst: %.elf
|
||||
$(OBJDUMP) -S $< > $@
|
||||
|
||||
# Optionally show how big the resulting program is
|
||||
size: $(TARGET).elf
|
||||
$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
|
||||
|
||||
clean:
|
||||
rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
|
||||
$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
|
||||
$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
|
||||
$(TARGET).eeprom
|
||||
|
||||
squeaky_clean:
|
||||
rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Programmer-specific details ##########
|
||||
########## Flashing code to AVR using avrdude ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
flash: $(TARGET).hex
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
|
||||
|
||||
## An alias
|
||||
program: flash
|
||||
|
||||
flash_eeprom: $(TARGET).eeprom
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
|
||||
|
||||
avrdude_terminal:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
|
||||
|
||||
## If you've got multiple programmers that you use,
|
||||
## you can define them here so that it's easy to switch.
|
||||
## To invoke, use something like `make flash_arduinoISP`
|
||||
flash_usbtiny: PROGRAMMER_TYPE = usbtiny
|
||||
flash_usbtiny: PROGRAMMER_ARGS = # USBTiny works with no further arguments
|
||||
flash_usbtiny: flash
|
||||
|
||||
flash_usbasp: PROGRAMMER_TYPE = usbasp
|
||||
flash_usbasp: PROGRAMMER_ARGS = # USBasp works with no further arguments
|
||||
flash_usbasp: flash
|
||||
|
||||
flash_arduinoISP: PROGRAMMER_TYPE = avrisp
|
||||
flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P /dev/ttyACM0
|
||||
## (for windows) flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P com5
|
||||
flash_arduinoISP: flash
|
||||
|
||||
flash_109: PROGRAMMER_TYPE = avr109
|
||||
flash_109: PROGRAMMER_ARGS = -b 9600 -P /dev/ttyUSB0
|
||||
flash_109: flash
|
||||
|
||||
##########------------------------------------------------------##########
|
||||
########## Fuse settings and suitable defaults ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
## Mega 48, 88, 168, 328 default values
|
||||
LFUSE = 0x62
|
||||
HFUSE = 0xdf
|
||||
EFUSE = 0x00
|
||||
|
||||
## Generic
|
||||
FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
|
||||
fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
|
||||
$(PROGRAMMER_ARGS) $(FUSE_STRING)
|
||||
show_fuses:
|
||||
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
|
||||
|
||||
## Called with no extra definitions, sets to defaults
|
||||
set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
|
||||
set_default_fuses: fuses
|
||||
|
||||
## Set the fuse byte for full-speed mode
|
||||
## Note: can also be set in firmware for modern chips
|
||||
set_fast_fuse: LFUSE = 0xE2
|
||||
set_fast_fuse: FUSE_STRING = -U lfuse:w:$(LFUSE):m
|
||||
set_fast_fuse: fuses
|
||||
|
||||
## Set the EESAVE fuse byte to preserve EEPROM across flashes
|
||||
set_eeprom_save_fuse: HFUSE = 0xD7
|
||||
set_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
set_eeprom_save_fuse: fuses
|
||||
|
||||
## Clear the EESAVE fuse byte
|
||||
clear_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
|
||||
clear_eeprom_save_fuse: fuses
|
||||
@@ -0,0 +1,83 @@
|
||||
|
||||
% Speech encoder for Mega644/GCC decoder
|
||||
clear all
|
||||
|
||||
%===================================%the Encoder
|
||||
[d,r] = wavread('Z:\EEdocs\4760\ece4760labstuff\GCCmega644\Speech\AllDigits8khz.WAV'); %4
|
||||
%scale to about unity
|
||||
res = 1/(max(max(d),abs(min(d)) ));
|
||||
dd = diff(d * res);
|
||||
%init the code vector
|
||||
ddcode = zeros(1,length(dd));
|
||||
|
||||
% brkpt1=-0.5; brkpt2=0 ; brkpt3=0.5;
|
||||
% value = [-.75, -.25 .25 .75];
|
||||
%breakpoints are changeable
|
||||
brkpt1=-0.05; brkpt2=0 ; brkpt3=0.05;
|
||||
%quantize the first derivative
|
||||
ddcode(find(dd<brkpt1))=0;
|
||||
ddcode(find(dd>=brkpt1 & dd<brkpt2))=1;
|
||||
ddcode(find(dd>=brkpt2 & dd<brkpt3))=2;
|
||||
ddcode(find(dd>=brkpt3))=3;
|
||||
|
||||
%make the length of ddcode a multiple of 4
|
||||
ddcode = [ddcode,zeros(1,4-mod(length(ddcode),4))];
|
||||
length(ddcode)
|
||||
index=1;
|
||||
for i=1:4:length(ddcode)
|
||||
packed(index)=ddcode(i)*64 + ddcode(i+1)*16 + ...
|
||||
ddcode(i+2)*4 + ddcode(i+3) ;
|
||||
index=index+1;
|
||||
end
|
||||
%make a textfile with GCC source code in it.
|
||||
fname='DPCMAllDigits.h';
|
||||
fid = fopen(fname,'w');
|
||||
fprintf(fid,'const prog_uint8_t DPCMAllDigits[%d]={\r',length(packed));
|
||||
for i=1:length(packed)-1
|
||||
fprintf(fid,' %5d,\r',packed(i));
|
||||
end
|
||||
fprintf(fid,' %5d};\r',packed(end));
|
||||
fclose(fid);
|
||||
|
||||
%===================================%the Decoder
|
||||
%value based on quantizer
|
||||
value = [-.16, -.026 .026 .16];
|
||||
dl(1)=0;
|
||||
j=2;
|
||||
for i=1:length(packed)
|
||||
p1 = fix(bitand(packed(i),192)/64);
|
||||
p2 = fix(bitand(packed(i),48)/16);
|
||||
p3 = fix(bitand(packed(i), 12)/4);
|
||||
p4 = fix(bitand(packed(i),3));
|
||||
%note that a bit of highpass has been added to reduce drift
|
||||
dl(j) = dl(j-1)+ value(p1+1) - .125*dl(j-1);
|
||||
j=j+1;
|
||||
dl(j) = dl(j-1)+ value(p2+1) - .125*dl(j-1);
|
||||
j=j+1;
|
||||
dl(j) = dl(j-1)+ value(p3+1) - .125*dl(j-1);
|
||||
j=j+1;
|
||||
dl(j) = dl(j-1)+ value(p4+1) - .125*dl(j-1);
|
||||
j=j+1;
|
||||
end
|
||||
% dl(1)=0;
|
||||
% for i=1:length(ddcode)
|
||||
% dl(i) = dl(i-1)+ value(ddcode(i)+1) - .125*dl(i-1); % .* w';
|
||||
% end
|
||||
|
||||
%====================================%playback and graphing
|
||||
soundsc(dl,r);
|
||||
% Compare the spectrograms
|
||||
figure(1);clf
|
||||
|
||||
subplot(211)
|
||||
spectrogram(d,256,r);
|
||||
colormap gray
|
||||
title('Original');
|
||||
|
||||
subplot(212)
|
||||
spectrogram(dl,256,r);
|
||||
colormap gray
|
||||
title('synth');
|
||||
|
||||
|
||||
|
||||
@@ -0,0 +1,5 @@
|
||||
clear all
|
||||
%reads a file at 16kHz and outputs it a 8kHz, 8 bits
|
||||
[d,r] = wavread('test6.WAV');
|
||||
y = resample(d,1,2);
|
||||
wavwrite(y,8000,8,'test6small.wav')
|
||||
@@ -0,0 +1,38 @@
|
||||
## Demo python program to create sine wave
|
||||
|
||||
from struct import pack, unpack
|
||||
from math import sin, pi
|
||||
import wave
|
||||
import os
|
||||
import random
|
||||
|
||||
|
||||
RATE = 44100
|
||||
|
||||
## GENERATE MONO FILE ##
|
||||
wv = wave.open('test_mono.wav', 'w')
|
||||
wv.setparams((1, 2, RATE, 0, 'NONE', 'not compressed'))
|
||||
maxVol=2**15-1.0 #maximum amplitude
|
||||
wvData=""
|
||||
for i in range(0, RATE*3):
|
||||
wvData+=pack('h', maxVol*sin(2*pi*i*440.0/RATE))
|
||||
|
||||
wv.writeframes(wvData)
|
||||
wv.close()
|
||||
os.system("mplayer test_mono.wav")
|
||||
|
||||
## GENERATE STEREO FILE ##
|
||||
wv = wave.open('test_stereo.wav', 'w')
|
||||
wv.setparams((2, 2, RATE, 0, 'NONE', 'not compressed'))
|
||||
maxVol=2**15-1.0 #maximum amplitude
|
||||
waveData = ""
|
||||
for i in range(0, RATE*3):
|
||||
t = 2*pi*i/RATE # time-step in radians*sec
|
||||
waveData+=pack('h', maxVol*sin(t*440.0)) #440Hz left
|
||||
waveData+=pack('h', maxVol*sin(t*220.0)) #220Hz right
|
||||
|
||||
|
||||
wv.writeframes(waveData)
|
||||
wv.close()
|
||||
os.system("mplayer test_stereo.wav")
|
||||
|
||||
@@ -0,0 +1,109 @@
|
||||
// Talking Voltmeter Example
|
||||
|
||||
#include <inttypes.h>
|
||||
#include <avr/io.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include <util/delay.h>
|
||||
#include <avr/pgmspace.h>
|
||||
#include "pinDefines.h"
|
||||
|
||||
#include "DPCM_rich_hello_world_8000.h"
|
||||
#define TABLE_NAME DPCM_rich_hello_world_8000
|
||||
|
||||
volatile uint16_t sampleNumber; // sample index
|
||||
volatile int8_t out, lastout; // output values
|
||||
volatile uint8_t p1, p2, p3, p4; // hold 4 differentials
|
||||
const int8_t PCMvalue[4] = {-20, -4, 4, 20};
|
||||
|
||||
ISR (TIMER2_COMPA_vect){
|
||||
/* Timer 2 controls sampling speed --
|
||||
ISR reads new data, loads PWM output, OCR0A */
|
||||
/* Since we can decode 4 2-bit values at once, need to know where
|
||||
we are in the 4-step mini-cycle. */
|
||||
uint8_t cycle = sampleNumber & 0b00000011; /* our 4 steps */
|
||||
uint16_t tableEntry = sampleNumber >> 2; /* 4 steps per table byte */
|
||||
uint8_t packedData; /* the new byte */
|
||||
switch(cycle){
|
||||
case 0: // Start of the cycle, unpack next byte of samples
|
||||
if (tableEntry < sizeof(TABLE_NAME)){
|
||||
packedData = pgm_read_byte(&TABLE_NAME[tableEntry]) ;
|
||||
p1 = (packedData>>6) & 3 ;
|
||||
p2 = (packedData>>4) & 3 ;
|
||||
p3 = (packedData>>2) & 3 ;
|
||||
p4 = (packedData & 3);
|
||||
}
|
||||
/* Add in the next PCM differential value */
|
||||
out = lastout + PCMvalue[p1] - (lastout>>3) ;
|
||||
break;
|
||||
case 1:
|
||||
out = lastout + PCMvalue[p2] - (lastout>>3) ;
|
||||
break;
|
||||
case 2:
|
||||
out = lastout + PCMvalue[p3] - (lastout>>3) ;
|
||||
break;
|
||||
case 3:
|
||||
out = lastout + PCMvalue[p4] - (lastout>>3) ;
|
||||
break;
|
||||
}
|
||||
/* Update PWM audio output */
|
||||
OCR0A = out + 128; /* re-center for 0-255 PWM */
|
||||
lastout = out; /* update last value */
|
||||
sampleNumber++; /* on to next sample */
|
||||
|
||||
/* When done, turn off PWM, Timer0 */
|
||||
if (sampleNumber == 4*sizeof(TABLE_NAME)-1) {
|
||||
TCCR2B = 0; /* disable sample-playback clock */
|
||||
OCR0A = 128; /* idle at mid-voltage */
|
||||
lastout = 0; /* start at 0 next time */
|
||||
}
|
||||
} // end ISR
|
||||
|
||||
void initTimer0(void){
|
||||
// Timer 0 Configured for free-running PWM Audio Output
|
||||
TCCR0A |= (1<<WGM00) | (1<<WGM01); /* fast PWM mode */
|
||||
TCCR0A |= (1<<COM0A0) | (1<<COM0A1); /* output on PD6/OC0A */
|
||||
TCCR0B = (1<<CS00); /* fastest clock */
|
||||
OCR0A = 128 ; /* initialize mid-value */
|
||||
SPEAKER_DDR |= (1<<SPEAKER); /* output PD6 / OC0A */
|
||||
}
|
||||
|
||||
void initTimer2(void){
|
||||
// Timer 2 loads OCR0A, defines sampling frequency
|
||||
// Aiming for around 8kHz
|
||||
TCCR2A = (1<<WGM21); /* CTC, count to OCR2A */
|
||||
OCR2A = 128; /* controls sample playback frequency */
|
||||
TCCR2B = (1<<CS21); /* clock source / 8 = 1MHz */
|
||||
TIMSK2 = (1<<OCIE2A); /* turn on compare interrupt */
|
||||
sei();
|
||||
}
|
||||
|
||||
void initADC(void){
|
||||
// ADC for Voltmeter function
|
||||
ADMUX |= (0b00001111 & PC5); /* set mux to ADC5 */
|
||||
DIDR0 |= _BV(ADC5D); /* turn off digital circuitry on PC5 */
|
||||
ADMUX |= (1 << REFS0); /* reference voltage is AVCC, 5V */
|
||||
ADCSRA |= (1 << ADPS1) | (1 << ADPS2); /* ADC clock prescaler /64 */
|
||||
ADCSRA |= (1 << ADEN); /* enable ADC */
|
||||
}
|
||||
|
||||
int main(void){
|
||||
uint8_t adcValue;
|
||||
|
||||
initTimer0();
|
||||
initTimer2();
|
||||
initADC();
|
||||
|
||||
while(1) {
|
||||
sampleNumber = 0; /* back to start of sample table */
|
||||
TCCR2B = (1<<CS21); /* start loading samples */
|
||||
|
||||
/* Wait until done speaking, then delay some more. */
|
||||
loop_until_bit_is_clear(TCCR2B, CS21);
|
||||
_delay_ms(1000);
|
||||
|
||||
} /* end while */
|
||||
return(0);
|
||||
}
|
||||
|
||||
|
||||
|
||||
@@ -0,0 +1,128 @@
|
||||
## Given a .wav audio file, downsamples it to 8000 Hz and writes it out
|
||||
## as a ADPCM file suitable for use with AVRs.
|
||||
|
||||
from struct import unpack
|
||||
import wave
|
||||
import os
|
||||
import sys
|
||||
|
||||
|
||||
def unpackMono(waveFile):
|
||||
w = wave.Wave_read(waveFile)
|
||||
data = []
|
||||
for i in range(w.getnframes()):
|
||||
data.append(unpack("h", w.readframes(1))[0])
|
||||
return(data)
|
||||
|
||||
def scaleData(data):
|
||||
scale = max(max(data), abs(min(data))) * 1.0
|
||||
return([x/scale for x in data])
|
||||
|
||||
def getDifferences(data):
|
||||
differences = []
|
||||
for i in range(len(data)-1):
|
||||
differences.append(data[i+1]-data[i])
|
||||
return(differences)
|
||||
|
||||
def quantize(data, thresholds):
|
||||
quantized = []
|
||||
n = len(thresholds)
|
||||
thresholdRange = range(n)
|
||||
for d in data:
|
||||
categorized = False
|
||||
for i in thresholdRange:
|
||||
if d <= thresholds[i]:
|
||||
quantized.append(i)
|
||||
categorized = True
|
||||
break
|
||||
if not categorized:
|
||||
quantized.append(n)
|
||||
return(quantized)
|
||||
|
||||
def pack4(data): # for 2-bit data
|
||||
packedData = []
|
||||
for i in range(len(data) / 4):
|
||||
thisByte = 0
|
||||
thisByte += 2**6 * data[4*i]
|
||||
thisByte += 2**4 * data[4*i+1]
|
||||
thisByte += 2**2 * data[4*i+2]
|
||||
thisByte += data[4*i+3]
|
||||
packedData.append(thisByte)
|
||||
return(packedData)
|
||||
|
||||
def pack2(data): # for 1-bit data
|
||||
packedData = []
|
||||
for i in range(len(data) / 8):
|
||||
thisByte = 0
|
||||
thisByte += 2**7 * data[8*i]
|
||||
thisByte += 2**6 * data[8*i+1]
|
||||
thisByte += 2**5 * data[8*i+2]
|
||||
thisByte += 2**4 * data[8*i+3]
|
||||
thisByte += 2**3 * data[8*i+4]
|
||||
thisByte += 2**2 * data[8*i+5]
|
||||
thisByte += 2**1 * data[8*i+6]
|
||||
thisByte += data[8*i+7]
|
||||
packedData.append(thisByte)
|
||||
return(packedData)
|
||||
|
||||
|
||||
def packOneBitDPCM(filename):
|
||||
data = unpackMono(filename)
|
||||
data = scaleData(data)
|
||||
differences = getDifferences(data)
|
||||
quantized = quantize(differences, [0])
|
||||
packed = pack2(quantized)
|
||||
return(packed)
|
||||
|
||||
def packTwoBitDPCM(filename):
|
||||
data = unpackMono(filename)
|
||||
data = scaleData(data)
|
||||
differences = getDifferences(data)
|
||||
quantized = quantize(differences, TWO_BIT_THRESHOLDS)
|
||||
packed = pack4(quantized)
|
||||
return(packed)
|
||||
|
||||
def createHeader(filename, packedData):
|
||||
baseFilename = filename[:-4]
|
||||
outfile = open("DPCM_" + baseFilename + ".h", "w")
|
||||
outfile.write('const uint8_t DPCM_{}[] PROGMEM = {{\n'.format(baseFilename))
|
||||
for byte in packedData:
|
||||
outfile.write(' {:d},\n'.format(byte))
|
||||
outfile.write('};\n')
|
||||
outfile.close()
|
||||
|
||||
def testWaveFile(filename):
|
||||
w = wave.Wave_read(filename)
|
||||
bitrate = w.getframerate()
|
||||
channels = w.getnchannels()
|
||||
bits = w.getsampwidth()*8
|
||||
if not bitrate==8000 or not channels==1 or not bits==16:
|
||||
newFilename = filename[:-4] + "_8000.wav"
|
||||
returnValue = os.system(SOXCOMMAND.format(filename, newFilename))
|
||||
if returnValue:
|
||||
raise(SOX_Exception("Something went wrong calling sox: SOXCOMMAND.format(filename, newFilename"))
|
||||
filename = newFilename
|
||||
return(filename)
|
||||
|
||||
|
||||
class SOX_Exception(Exception):
|
||||
pass
|
||||
class UsageException(Exception):
|
||||
pass
|
||||
|
||||
if __name__ == "__main__":
|
||||
|
||||
TWO_BIT_THRESHOLDS = [-0.05, 0, 0.05]
|
||||
try:
|
||||
filename = sys.argv[1]
|
||||
except IndexError:
|
||||
raise(UsageException("usage: python wave2DPCM.py wavefilename.wav"))
|
||||
|
||||
SOXCOMMAND = "sox {} -r 8000 -c 1 -b 16 {}" # for converting wave file
|
||||
## install sox, or use itunes or audacity to convert
|
||||
## wavefile to 8kHz, 16-bit, one-channel
|
||||
|
||||
filename = testWaveFile(filename)
|
||||
packedData = packTwoBitDPCM(filename)
|
||||
createHeader(filename, packedData)
|
||||
|
||||
@@ -0,0 +1,4 @@
|
||||
*8000.wav
|
||||
DPCM*.h
|
||||
muah.wav
|
||||
outtakes.wav
|
||||
File diff suppressed because it is too large
Load Diff
Binary file not shown.
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Binary file not shown.
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Binary file not shown.
@@ -0,0 +1,136 @@
|
||||
## Given a .wav audio file, downsamples it to 8000 Hz and writes it out
|
||||
## as a ADPCM file suitable for use with AVRs.
|
||||
|
||||
from struct import unpack
|
||||
import wave
|
||||
import os
|
||||
import sys
|
||||
|
||||
def unpackMono(waveFile):
|
||||
w = wave.Wave_read(waveFile)
|
||||
data = []
|
||||
for i in range(w.getnframes()):
|
||||
data.append(unpack("h", w.readframes(1))[0])
|
||||
return(data)
|
||||
|
||||
def scaleData(data):
|
||||
scale = max(max(data), abs(min(data))) * 1.0
|
||||
return([x/scale for x in data])
|
||||
|
||||
def getDifferences(data):
|
||||
differences = []
|
||||
for i in range(len(data)-1):
|
||||
differences.append(data[i+1]-data[i])
|
||||
return(differences)
|
||||
|
||||
def quantize(data, thresholds):
|
||||
quantized = []
|
||||
n = len(thresholds)
|
||||
thresholdRange = range(n)
|
||||
for d in data:
|
||||
categorized = False
|
||||
for i in thresholdRange:
|
||||
if d <= thresholds[i]:
|
||||
quantized.append(i)
|
||||
categorized = True
|
||||
break
|
||||
if not categorized:
|
||||
quantized.append(n)
|
||||
return(quantized)
|
||||
|
||||
def pack4(data): # for 2-bit data
|
||||
packedData = []
|
||||
for i in range(len(data) / 4):
|
||||
thisByte = 0
|
||||
thisByte += 2**6 * data[4*i]
|
||||
thisByte += 2**4 * data[4*i+1]
|
||||
thisByte += 2**2 * data[4*i+2]
|
||||
thisByte += data[4*i+3]
|
||||
packedData.append(thisByte)
|
||||
return(packedData)
|
||||
|
||||
def pack2(data): # for 1-bit data
|
||||
packedData = []
|
||||
for i in range(len(data) / 8):
|
||||
thisByte = 0
|
||||
thisByte += 2**7 * data[8*i]
|
||||
thisByte += 2**6 * data[8*i+1]
|
||||
thisByte += 2**5 * data[8*i+2]
|
||||
thisByte += 2**4 * data[8*i+3]
|
||||
thisByte += 2**3 * data[8*i+4]
|
||||
thisByte += 2**2 * data[8*i+5]
|
||||
thisByte += 2**1 * data[8*i+6]
|
||||
thisByte += data[8*i+7]
|
||||
packedData.append(thisByte)
|
||||
return(packedData)
|
||||
|
||||
|
||||
def packOneBitDPCM(filename):
|
||||
data = unpackMono(filename)
|
||||
data = scaleData(data)
|
||||
differences = getDifferences(data)
|
||||
quantized = quantize(differences, [0])
|
||||
packed = pack2(quantized)
|
||||
return(packed)
|
||||
|
||||
def packTwoBitDPCM(filename):
|
||||
data = unpackMono(filename)
|
||||
data = scaleData(data)
|
||||
differences = getDifferences(data)
|
||||
quantized = quantize(differences, TWO_BIT_THRESHOLDS)
|
||||
packed = pack4(quantized)
|
||||
return(packed)
|
||||
|
||||
def createHeader(filename, packedData):
|
||||
baseFilename = filename[:-4]
|
||||
outfile = open("DPCM_" + baseFilename + ".h", "w")
|
||||
outfile.write('uint8_t DPCM_{}[] PROGMEM = {{\n'.format(baseFilename))
|
||||
for byte in packedData:
|
||||
outfile.write(' {:d},\n'.format(byte))
|
||||
outfile.write('};\n')
|
||||
outfile.close()
|
||||
|
||||
def testWaveFile(filename):
|
||||
w = wave.Wave_read(filename)
|
||||
bitrate = w.getframerate()
|
||||
channels = w.getnchannels()
|
||||
bits = w.getsampwidth()*8
|
||||
if not bitrate==8000 or not channels==1 or not bits==16:
|
||||
newFilename = filename[:-4] + "_8000.wav"
|
||||
returnValue = os.system(SOXCOMMAND.format(filename, newFilename))
|
||||
if returnValue:
|
||||
raise(SOX_Exception("Something went wrong calling sox: SOXCOMMAND.format(filename, newFilename"))
|
||||
filename = newFilename
|
||||
return(filename)
|
||||
|
||||
|
||||
class SOX_Exception(Exception):
|
||||
pass
|
||||
|
||||
if __name__ == "__main__":
|
||||
|
||||
## Default is to convert all wav files in the current directory.
|
||||
|
||||
TWO_BIT_THRESHOLDS = [-0.05, 0, 0.05]
|
||||
|
||||
SOXCOMMAND = "sox {} -r 8000 -c 1 -b 16 {}" # for converting wave file
|
||||
## install sox, or use itunes or audacity to convert
|
||||
## wavefile to 8kHz, 16-bit, one-channel
|
||||
|
||||
wavefiles = [x for x in os.walk(".").next()[2] if x.endswith(".wav")]
|
||||
for filename in wavefiles:
|
||||
|
||||
filename = testWaveFile(filename)
|
||||
packedData = packTwoBitDPCM(filename)
|
||||
createHeader(filename, packedData)
|
||||
|
||||
## And create a digits set:
|
||||
digits = ["one", "two", "three", "four", "five", "six",
|
||||
"seven", "eight", "nine", "zero", "point", "volts"]
|
||||
allDigits = open("allDigits.h", "w")
|
||||
for digit in digits:
|
||||
filename = "DPCM_" + digit + "_8000.h"
|
||||
print filename
|
||||
allDigits.write(open(filename).read())
|
||||
allDigits.close()
|
||||
|
||||
Binary file not shown.
@@ -0,0 +1,2 @@
|
||||
*8000.wav
|
||||
DPCM*.h
|
||||
File diff suppressed because it is too large
Load Diff
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
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Binary file not shown.
@@ -0,0 +1,125 @@
|
||||
// Talking Voltmeter Example
|
||||
|
||||
#include <inttypes.h>
|
||||
#include <avr/io.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include <util/delay.h>
|
||||
#include <avr/pgmspace.h>
|
||||
#include <avr/power.h>
|
||||
#include "pinDefines.h"
|
||||
#include "USART.h"
|
||||
|
||||
#include "talkingVoltmeter.h"
|
||||
|
||||
void startSampleTimer(void) {
|
||||
sampleNumber = 0; /* back to start of sample table */
|
||||
TCCR2B = (1 << CS21); /* turn on timer clock */
|
||||
/* Two clock options above end up ~8kHz on 8MHz system */
|
||||
}
|
||||
void stopSampleTimer(void) {
|
||||
TCCR2B = 0; /* disable sample-playback clock */
|
||||
OCR0A = 128; /* idle PWM at mid-voltage */
|
||||
lastout = 0; /* start at 0 next time */
|
||||
}
|
||||
void speak(void) {
|
||||
startSampleTimer();
|
||||
loop_until_bit_is_clear(TCCR2B, CS21); /* Wait until done */
|
||||
}
|
||||
|
||||
void updatePWMAudio(void) {
|
||||
OCR0A = out + 128; /* re-center for 0-255 PWM */
|
||||
lastout = out; /* update last value */
|
||||
sampleNumber++; /* on to next sample */
|
||||
}
|
||||
void unpackByte(uint8_t dataByte) {
|
||||
/* Select pairs of bits from byte, save out */
|
||||
differentials[0] = (dataByte >> 6) & 0b00000011;
|
||||
differentials[1] = (dataByte >> 4) & 0b00000011;
|
||||
differentials[2] = (dataByte >> 2) & 0b00000011;
|
||||
differentials[3] = (dataByte & 0b00000011);
|
||||
}
|
||||
|
||||
/* Timer 2 controls sampling speed.
|
||||
ISR reads new data, loads PWM values into OCR0A */
|
||||
ISR(TIMER2_COMPA_vect) {
|
||||
/* Since we can decode 4 2-bit values at once, need to know where
|
||||
we are in the 4-step mini-cycle. */
|
||||
uint8_t cycle = sampleNumber & 0b00000011; /* keep last 2 bits */
|
||||
uint16_t tableEntry;
|
||||
uint8_t packedData;
|
||||
|
||||
if (cycle == 0) { /* at first sample, re-load */
|
||||
tableEntry = sampleNumber >> 2; /* where we are in table */
|
||||
if (tableEntry < thisTableLength) {
|
||||
/* read the next byte from the selected table */
|
||||
packedData = pgm_read_byte(&thisTableP[tableEntry]);
|
||||
unpackByte(packedData); /* split up byte into differentials[] */
|
||||
}
|
||||
else { /* at end of table, done. */
|
||||
stopSampleTimer();
|
||||
}
|
||||
}
|
||||
/* Decode the differences: current value = last + difference */
|
||||
out = lastout + dpcmWeights[differentials[cycle]] - (lastout >> 4);
|
||||
updatePWMAudio();
|
||||
} // end ISR (TIMER2_COMPA_vect)
|
||||
|
||||
void printString_Progmem(const char *stringP) {
|
||||
char oneLetter;
|
||||
while ((oneLetter = pgm_read_byte(stringP))) {
|
||||
transmitByte(oneLetter);
|
||||
stringP++;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int main(void) {
|
||||
uint16_t voltage;
|
||||
uint8_t volts;
|
||||
uint8_t tenths;
|
||||
uint8_t vcc = 51; /* 10x VCC, in volts */
|
||||
|
||||
clock_prescale_set(clock_div_1); /* 8 MHz */
|
||||
initTimer0();
|
||||
initTimer2();
|
||||
sei(); /* for timer2 ISR */
|
||||
initADC();
|
||||
initUSART();
|
||||
|
||||
printString_Progmem(PSTR("\r\n--=( Talking Voltmeter )=--\r\n"));
|
||||
|
||||
selectTable(INTRO);
|
||||
speak();
|
||||
|
||||
while (1) {
|
||||
|
||||
ADCSRA |= (1 << ADSC); /* start ADC */
|
||||
loop_until_bit_is_clear(ADCSRA, ADSC);
|
||||
|
||||
voltage = ADC * vcc + vcc / 2; /* vcc/2 to make rounding work */
|
||||
voltage = voltage >> 10; /* divide by 10-bits for ADC */
|
||||
/* "voltage" is now actually 10x real-world voltage */
|
||||
volts = voltage / 10;
|
||||
tenths = voltage % 10;
|
||||
|
||||
transmitByte('0' + volts); /* serial output as well */
|
||||
selectTable(volts); /* 0 points to ZERO_TABLE, etc */
|
||||
speak();
|
||||
|
||||
transmitByte('.');
|
||||
selectTable(POINT);
|
||||
speak();
|
||||
|
||||
transmitByte('0' + tenths);
|
||||
selectTable(tenths);
|
||||
speak();
|
||||
|
||||
printString_Progmem(PSTR(" volts\r\n"));
|
||||
selectTable(VOLTS);
|
||||
speak();
|
||||
|
||||
_delay_ms(SPEECH_DELAY);
|
||||
|
||||
} /* end while */
|
||||
return 0;
|
||||
}
|
||||
@@ -0,0 +1,91 @@
|
||||
/* Include file with DPCM data in it */
|
||||
#include "allDigits.h"
|
||||
#include <avr/pgmspace.h>
|
||||
|
||||
// Now define sample-table names used in digits file
|
||||
// From here on, no matter what you call the samples,
|
||||
// you can refer to them as "ONE_TABLE", etc.
|
||||
#define ONE_TABLE DPCM_one_8000
|
||||
#define TWO_TABLE DPCM_two_8000
|
||||
#define THREE_TABLE DPCM_three_8000
|
||||
#define FOUR_TABLE DPCM_four_8000
|
||||
#define FIVE_TABLE DPCM_five_8000
|
||||
#define SIX_TABLE DPCM_six_8000
|
||||
#define SEVEN_TABLE DPCM_seven_8000
|
||||
#define EIGHT_TABLE DPCM_eight_8000
|
||||
#define NINE_TABLE DPCM_nine_8000
|
||||
#define ZERO_TABLE DPCM_zero_8000
|
||||
#define POINT_TABLE DPCM_point_8000
|
||||
#define VOLTS_TABLE DPCM_volts_8000
|
||||
#define INTRO_TABLE DPCM_talkingvoltmeter_8000
|
||||
|
||||
#define SPEECH_DELAY 2000 /* milliseconds */
|
||||
|
||||
/* --------------- Globals used by the ISR -------------- */
|
||||
volatile uint8_t* thisTableP; /* points at the current speech table */
|
||||
volatile uint16_t thisTableLength; /* length of current speech table */
|
||||
|
||||
volatile uint16_t sampleNumber; // sample index
|
||||
volatile int8_t out, lastout; // output values
|
||||
volatile uint8_t differentials[4] = {0,0,0,0};
|
||||
const int8_t dpcmWeights[4] = {-12, -3, 3, 12};
|
||||
|
||||
|
||||
/* These arrays let us choose a table (and its length) numerically */
|
||||
const uint16_t tableLengths[] = { /* all sample tables are 8-bit */
|
||||
sizeof(ZERO_TABLE), sizeof(ONE_TABLE), sizeof(TWO_TABLE),
|
||||
sizeof(THREE_TABLE), sizeof(FOUR_TABLE), sizeof(FIVE_TABLE),
|
||||
sizeof(SIX_TABLE), sizeof(SEVEN_TABLE), sizeof(EIGHT_TABLE),
|
||||
sizeof(NINE_TABLE), sizeof(POINT_TABLE), sizeof(VOLTS_TABLE),
|
||||
sizeof(INTRO_TABLE)
|
||||
};
|
||||
|
||||
// Create an indexing table of all of the start addresses for
|
||||
// each spoken digit. And then store this index in PROGMEM.
|
||||
const uint8_t* const tablePointers[] PROGMEM = {
|
||||
ZERO_TABLE, ONE_TABLE, TWO_TABLE, THREE_TABLE, FOUR_TABLE,
|
||||
FIVE_TABLE, SIX_TABLE, SEVEN_TABLE, EIGHT_TABLE, NINE_TABLE,
|
||||
POINT_TABLE, VOLTS_TABLE, INTRO_TABLE
|
||||
};
|
||||
|
||||
void selectTable(uint8_t whichTable){
|
||||
/* Set up global table pointer, lengths */
|
||||
uint16_t pointerAddress;
|
||||
thisTableLength = tableLengths[whichTable];
|
||||
pointerAddress = (uint16_t) &tablePointers[whichTable];
|
||||
thisTableP = (uint8_t*) pgm_read_word(pointerAddress);
|
||||
}
|
||||
|
||||
/* Extra defines for the non-numeric values */
|
||||
#define POINT 10
|
||||
#define VOLTS 11
|
||||
#define INTRO 12
|
||||
|
||||
|
||||
///----------------- Init functions -------------------///
|
||||
|
||||
void initTimer0(void){
|
||||
// Timer 0 Configured for free-running PWM Audio Output
|
||||
TCCR0A |= (1<<WGM00) | (1<<WGM01); /* fast PWM mode */
|
||||
TCCR0A |= (1<<COM0A0) | (1<<COM0A1); /* output on PD6/OC0A */
|
||||
TCCR0B = (1<<CS00); /* fastest clock */
|
||||
OCR0A = 128 ; /* initialize mid-value */
|
||||
SPEAKER_DDR |= (1<<SPEAKER); /* output PD6 / OC0A */
|
||||
}
|
||||
|
||||
void initTimer2(void){
|
||||
// Timer 2 loads OCR0A, provides sampling frequency
|
||||
TCCR2A = (1<<WGM21); /* CTC, count to OCR2A */
|
||||
TIMSK2 = (1<<OCIE2A); /* turn on compare interrupt */
|
||||
OCR2A = 128; /* controls sample playback frequency */
|
||||
/* note: no clock source selected yet, so won't start up */
|
||||
}
|
||||
|
||||
void initADC(void){
|
||||
// ADC for Voltmeter function
|
||||
ADMUX |= (0b00001111 & PC5); /* set mux to ADC5 */
|
||||
DIDR0 |= _BV(ADC5D); /* turn off digital circuitry on PC5 */
|
||||
ADMUX |= (1 << REFS0); /* reference voltage is AVCC, 5V */
|
||||
ADCSRA |= (1 << ADPS1) | (1 << ADPS2); /* ADC clock prescaler /64 */
|
||||
ADCSRA |= (1 << ADEN); /* enable ADC */
|
||||
}
|
||||
@@ -0,0 +1,119 @@
|
||||
## Functions to convert mono, 8kHz .wav files to differential PCM
|
||||
|
||||
## If you've got 'sox' installed on your computer, this code calls
|
||||
## 'sox' and re-codes the files for you. If not, you've got to do it.
|
||||
|
||||
## Finally, given a bunch of wav files with names like one.wav, two.wav
|
||||
## this writes the DPCM data out to a header file for including in AVR C
|
||||
|
||||
from struct import unpack
|
||||
import wave
|
||||
import os
|
||||
import sys
|
||||
|
||||
def unpackMono(waveFile):
|
||||
w = wave.Wave_read(waveFile)
|
||||
data = []
|
||||
for i in range(w.getnframes()):
|
||||
data.append(unpack("h", w.readframes(1))[0])
|
||||
return(data)
|
||||
|
||||
def scaleData(data):
|
||||
scale = max(max(data), abs(min(data))) * 1.0
|
||||
return([x/scale for x in data])
|
||||
|
||||
def getDifferences(data):
|
||||
differences = []
|
||||
for i in range(len(data)-1):
|
||||
differences.append(data[i+1]-data[i])
|
||||
return(differences)
|
||||
|
||||
def quantize(data, thresholds):
|
||||
quantized = []
|
||||
n = len(thresholds)
|
||||
thresholdRange = range(n)
|
||||
for d in data:
|
||||
categorized = False
|
||||
for i in thresholdRange:
|
||||
if d <= thresholds[i]:
|
||||
quantized.append(i)
|
||||
categorized = True
|
||||
break
|
||||
if not categorized:
|
||||
quantized.append(n)
|
||||
return(quantized)
|
||||
|
||||
def pack4(data): # for 2-bit data
|
||||
packedData = []
|
||||
for i in range(len(data) / 4):
|
||||
thisByte = 0
|
||||
thisByte += 2**6 * data[4*i]
|
||||
thisByte += 2**4 * data[4*i+1]
|
||||
thisByte += 2**2 * data[4*i+2]
|
||||
thisByte += data[4*i+3]
|
||||
packedData.append(thisByte)
|
||||
return(packedData)
|
||||
|
||||
def packTwoBitDPCM(filename):
|
||||
data = unpackMono(filename)
|
||||
data = scaleData(data)
|
||||
differences = getDifferences(data)
|
||||
quantized = quantize(differences, TWO_BIT_THRESHOLDS)
|
||||
packed = pack4(quantized)
|
||||
return(packed)
|
||||
|
||||
def createHeader(filename, packedData):
|
||||
baseFilename = filename[:-4]
|
||||
outfile = open("DPCM_" + baseFilename + ".h", "w")
|
||||
outfile.write('const uint8_t DPCM_{}[] PROGMEM = {{\n'.format(baseFilename))
|
||||
for byte in packedData:
|
||||
outfile.write(' {:d},\n'.format(byte))
|
||||
outfile.write('};\n')
|
||||
outfile.close()
|
||||
|
||||
def fixWaveFile(filename):
|
||||
w = wave.Wave_read(filename)
|
||||
bitrate = w.getframerate()
|
||||
channels = w.getnchannels()
|
||||
bits = w.getsampwidth()*8
|
||||
if not bitrate==8000 or not channels==1 or not bits==16:
|
||||
newFilename = filename[:-4] + "_8000.wav"
|
||||
returnValue = os.system(SOXCOMMAND.format(filename, newFilename))
|
||||
if returnValue:
|
||||
raise(SOX_Exception("""Something went wrong calling sox:
|
||||
SOXCOMMAND.format(filename, newFilename
|
||||
Is sox installed? If not, just make sure that you've saved 8kHz mono wav files."""))
|
||||
filename = newFilename
|
||||
return(filename)
|
||||
|
||||
|
||||
class SOX_Exception(Exception):
|
||||
pass
|
||||
|
||||
if __name__ == "__main__":
|
||||
|
||||
## Default is to convert all wav files in the current directory.
|
||||
|
||||
TWO_BIT_THRESHOLDS = [-0.05, 0, 0.05]
|
||||
|
||||
SOXCOMMAND = "sox {} -r 8000 -c 1 -b 16 {}" # for converting wave file
|
||||
## install sox, or use itunes or audacity to convert
|
||||
## wavefile to 8kHz, 16-bit, one-channel
|
||||
|
||||
wavefiles = [x for x in os.walk(".").next()[2] if x.endswith(".wav")]
|
||||
for filename in wavefiles:
|
||||
filename = fixWaveFile(filename) # converts if needed, returns new filename
|
||||
packedData = packTwoBitDPCM(filename)
|
||||
createHeader(filename, packedData)
|
||||
|
||||
## And create a digits sample set for talkingVoltmeter.h:
|
||||
digits = ["one", "two", "three", "four", "five", "six",
|
||||
"seven", "eight", "nine", "zero",
|
||||
"point", "volts", "talkingvoltmeter"]
|
||||
allDigits = open("allDigits.h", "w")
|
||||
for digit in digits:
|
||||
filename = "DPCM_" + digit + "_8000.h"
|
||||
print filename
|
||||
allDigits.write(open(filename).read())
|
||||
allDigits.close()
|
||||
|
||||
Reference in New Issue
Block a user