Started following some tutorial on att85 usi. Downloaded example code from make avr book.
This commit is contained in:
Dan
3
Make AVR Examples/Chapter19_EEPROM/eememDemo/.gitignore
vendored
Normal file
3
Make AVR Examples/Chapter19_EEPROM/eememDemo/.gitignore
vendored
Normal file
@@ -0,0 +1,3 @@
|
||||
*.eeprom
|
||||
*.raw
|
||||
|
||||
196
Make AVR Examples/Chapter19_EEPROM/eememDemo/Makefile
Normal file
196
Make AVR Examples/Chapter19_EEPROM/eememDemo/Makefile
Normal file
@@ -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
|
||||
39
Make AVR Examples/Chapter19_EEPROM/eememDemo/eememDemo.c
Normal file
39
Make AVR Examples/Chapter19_EEPROM/eememDemo/eememDemo.c
Normal file
@@ -0,0 +1,39 @@
|
||||
#include <avr/io.h>
|
||||
#include <avr/eeprom.h>
|
||||
#include <USART.h>
|
||||
/* #include <stdio.h> */
|
||||
/* #include <stdlib.h> */
|
||||
|
||||
#define STRING_LEN 80
|
||||
|
||||
// Define EEMEM variables
|
||||
uint8_t eepromCounter EEMEM = 0;
|
||||
char eepromString[STRING_LEN] EEMEM = "Welcome to the EEMEM Demo.\r\n";
|
||||
uint16_t eepromWord EEMEM = 12345;
|
||||
|
||||
int main(void) {
|
||||
|
||||
initUSART();
|
||||
char ramString[STRING_LEN];
|
||||
uint8_t counter;
|
||||
|
||||
while (1) {
|
||||
printString("\r\n------------------\r\n");
|
||||
eeprom_read_block(ramString, eepromString, STRING_LEN);
|
||||
printString(ramString);
|
||||
|
||||
printString("\r\nThe counter reads: ");
|
||||
counter = eeprom_read_byte(&eepromCounter);
|
||||
printByte(counter);
|
||||
|
||||
printString("\r\nMy uint16_t value is: ");
|
||||
printWord(eeprom_read_word(&eepromWord));
|
||||
|
||||
printString("\r\n Enter a new introduction string below:\r\n");
|
||||
readString(ramString, STRING_LEN);
|
||||
eeprom_update_block(ramString, eepromString, STRING_LEN);
|
||||
counter++;
|
||||
eeprom_update_byte(&eepromCounter, counter);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
3
Make AVR Examples/Chapter19_EEPROM/favoriteColor/.gitignore
vendored
Normal file
3
Make AVR Examples/Chapter19_EEPROM/favoriteColor/.gitignore
vendored
Normal file
@@ -0,0 +1,3 @@
|
||||
*.eeprom
|
||||
*.raw
|
||||
|
||||
196
Make AVR Examples/Chapter19_EEPROM/favoriteColor/Makefile
Normal file
196
Make AVR Examples/Chapter19_EEPROM/favoriteColor/Makefile
Normal file
@@ -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 +1,38 @@
|
||||
#include <avr/io.h>
|
||||
#include <avr/eeprom.h>
|
||||
#include <USART.h>
|
||||
|
||||
#define STRING_MAXLEN 0x20 /* 32 characters */
|
||||
#define STRING_ADDRESS 0x20
|
||||
#define COUNTER_ADDRESS 0x10
|
||||
|
||||
|
||||
int main(void) {
|
||||
|
||||
char myString[STRING_MAXLEN];
|
||||
char *eepromAddress = (char *) STRING_ADDRESS;
|
||||
uint16_t counter;
|
||||
|
||||
initUSART();
|
||||
|
||||
while (1) {
|
||||
// Read from EEPROM and print out
|
||||
eeprom_read_block(myString, eepromAddress, STRING_MAXLEN);
|
||||
counter = eeprom_read_word((uint16_t *) COUNTER_ADDRESS);
|
||||
printString("\r\nYour old favorite color is: ");
|
||||
printString(myString);
|
||||
|
||||
// Take input, store in EEPROM
|
||||
printString("\r\n\r\n Type your new favorite color. ");
|
||||
readString(myString, sizeof(myString));
|
||||
/* pass by address, function will change its values */
|
||||
eeprom_update_block(myString, eepromAddress, STRING_MAXLEN);
|
||||
counter++;
|
||||
printString("Thanks! \r\nYou've answered the same question ");
|
||||
printWord(counter);
|
||||
printString(" times. \r\n");
|
||||
eeprom_update_word((uint16_t *) COUNTER_ADDRESS, counter);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
3
Make AVR Examples/Chapter19_EEPROM/quickDemo/.gitignore
vendored
Normal file
3
Make AVR Examples/Chapter19_EEPROM/quickDemo/.gitignore
vendored
Normal file
@@ -0,0 +1,3 @@
|
||||
*.eeprom
|
||||
*.raw
|
||||
|
||||
196
Make AVR Examples/Chapter19_EEPROM/quickDemo/Makefile
Normal file
196
Make AVR Examples/Chapter19_EEPROM/quickDemo/Makefile
Normal file
@@ -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
|
||||
19
Make AVR Examples/Chapter19_EEPROM/quickDemo/quickDemo.c
Normal file
19
Make AVR Examples/Chapter19_EEPROM/quickDemo/quickDemo.c
Normal file
@@ -0,0 +1,19 @@
|
||||
#include <avr/io.h>
|
||||
#include <avr/eeprom.h>
|
||||
|
||||
int main(void) {
|
||||
|
||||
// Store the 8-bit value 5 in EEPROM slot 0
|
||||
uint8_t *address = (uint8_t *) 0;
|
||||
eeprom_update_byte(address, 5);
|
||||
|
||||
// Store the 16-bit value 12345 in EEPROM slots 5 and 6:
|
||||
eeprom_update_word((uint16_t *) 5, 12345);
|
||||
|
||||
// Store a character array (string) in EEPROM slots 16-28:
|
||||
char *stringPointer = (char *) 16;
|
||||
char myString[] = "hello world.";
|
||||
eeprom_update_block(myString, stringPointer, sizeof(myString));
|
||||
|
||||
return 0;
|
||||
}
|
||||
1
Make AVR Examples/Chapter19_EEPROM/vigenereCipher/.gitignore
vendored
Normal file
1
Make AVR Examples/Chapter19_EEPROM/vigenereCipher/.gitignore
vendored
Normal file
@@ -0,0 +1 @@
|
||||
vigenereCipher.eeprom
|
||||
196
Make AVR Examples/Chapter19_EEPROM/vigenereCipher/Makefile
Normal file
196
Make AVR Examples/Chapter19_EEPROM/vigenereCipher/Makefile
Normal file
@@ -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 +1,146 @@
|
||||
/*
|
||||
Vigenere Cipher encoder / decoder demo
|
||||
And an excuse to play around with EEPROM memory
|
||||
*/
|
||||
|
||||
#include "vigenereCipher.h"
|
||||
|
||||
// -------- Functions --------- //
|
||||
|
||||
void printFromEEPROM(char *eepromString) {
|
||||
uint8_t letter;
|
||||
do {
|
||||
letter = eeprom_read_byte((uint8_t *) eepromString);
|
||||
transmitByte(letter);
|
||||
eepromString++;
|
||||
} while (letter);
|
||||
}
|
||||
|
||||
void enterText(char text[]) {
|
||||
uint8_t i = 0;
|
||||
char letter;
|
||||
do {
|
||||
letter = receiveByte();
|
||||
transmitByte(letter); /* echo */
|
||||
text[i] = letter;
|
||||
i++;
|
||||
} while (!(letter == '\r') && (i < (MAX_TEXT_LENGTH - 1)));
|
||||
text[i - 1] = 0;
|
||||
}
|
||||
|
||||
void displayCodes(void) {
|
||||
uint8_t i;
|
||||
for (i = 0; i < 4; i++) {
|
||||
transmitByte(' ');
|
||||
transmitByte('0' + i);
|
||||
printString(": ");
|
||||
printFromEEPROM(codePointers[i]);
|
||||
printString("\r\n");
|
||||
}
|
||||
}
|
||||
|
||||
void changeCode(char codeBuffer[]) {
|
||||
char input;
|
||||
char *codeAddress;
|
||||
printString(" -- Choose code phrase to replace:\r\n");
|
||||
do {
|
||||
displayCodes();
|
||||
input = receiveByte();
|
||||
} while ((input < '0') || (input > '3'));
|
||||
codeAddress = codePointers[input - '0'];
|
||||
printString(" -- Enter new code: ");
|
||||
enterText(codeBuffer);
|
||||
eeprom_update_block(codeBuffer, codeAddress, CODE_LEN);
|
||||
}
|
||||
|
||||
void selectCode(char code[]) {
|
||||
char input;
|
||||
char *codeAddress;
|
||||
printFromEEPROM(promptSelectCode);
|
||||
do {
|
||||
displayCodes();
|
||||
input = receiveByte();
|
||||
} while ((input < '0') || (input > '3'));
|
||||
codeAddress = codePointers[input - '0'];
|
||||
eeprom_read_block(code, codeAddress, CODE_LEN);
|
||||
}
|
||||
|
||||
void encodeVigenere(char text[], char code[]) {
|
||||
uint8_t codePosition = 0;
|
||||
uint8_t textPosition = 0;
|
||||
do {
|
||||
if (code[codePosition] == 0) { /* loop when at end of code phrase */
|
||||
codePosition = 0;
|
||||
}
|
||||
text[textPosition] += code[codePosition] - 32;
|
||||
if (text[textPosition] > 126) {
|
||||
text[textPosition] -= 95;
|
||||
} /* keeps within printing characters */
|
||||
codePosition++; /* and move on to the next */
|
||||
textPosition++;
|
||||
} while (text[textPosition]); /* until zero at the end of string */
|
||||
}
|
||||
|
||||
void decodeVigenere(char text[], char code[]) {
|
||||
uint8_t codePosition = 0;
|
||||
uint8_t textPosition = 0;
|
||||
do {
|
||||
if (code[codePosition] == 0) {
|
||||
codePosition = 0;
|
||||
}
|
||||
if (code[codePosition] > text[textPosition]) {
|
||||
text[textPosition] += 95;
|
||||
} /* keeps within printing characters */
|
||||
text[textPosition] -= code[codePosition] - 32;
|
||||
codePosition++;
|
||||
textPosition++;
|
||||
} while (text[textPosition]);
|
||||
}
|
||||
|
||||
int main(void) {
|
||||
// -------- Inits --------- //
|
||||
|
||||
char textBuffer[MAX_TEXT_LENGTH];
|
||||
char codeString[CODE_LEN];
|
||||
char input;
|
||||
initUSART();
|
||||
|
||||
// ------ Event loop ------ //
|
||||
while (1) {
|
||||
|
||||
// Menu
|
||||
printFromEEPROM(welcomeString);
|
||||
printFromEEPROM(promptText);
|
||||
printString(textBuffer);
|
||||
printString("\r\n");
|
||||
printFromEEPROM(promptCode);
|
||||
printString(codeString);
|
||||
printString("\r\n\r\n ---------------------\r\n");
|
||||
printFromEEPROM(menuEnterText);
|
||||
printFromEEPROM(menuCodeText);
|
||||
printFromEEPROM(menuChangeCode);
|
||||
printFromEEPROM(menuEncode);
|
||||
printFromEEPROM(menuDecode);
|
||||
input = receiveByte();
|
||||
|
||||
switch (input) {
|
||||
case 'e': // encode
|
||||
encodeVigenere(textBuffer, codeString);
|
||||
break;
|
||||
case 'd': // decode
|
||||
decodeVigenere(textBuffer, codeString);
|
||||
break;
|
||||
case 'n': // new text
|
||||
printFromEEPROM(promptTypeText);
|
||||
enterText(textBuffer);
|
||||
break;
|
||||
case 'c': // choose code
|
||||
selectCode(codeString);
|
||||
break;
|
||||
case 'x': // change code
|
||||
changeCode(codeString);
|
||||
break;
|
||||
}
|
||||
} /* End event loop */
|
||||
return 0; /* This line is never reached */
|
||||
}
|
||||
@@ -0,0 +1,55 @@
|
||||
/*
|
||||
Vigenere Cipher encoder / decoder demo
|
||||
And an excuse to play around with EEPROM memory
|
||||
*/
|
||||
|
||||
#include "vigenereCipher.h"
|
||||
|
||||
// -------- Functions --------- //
|
||||
|
||||
void printFromEEPROM(char *eepromString);
|
||||
void enterText(char text[]);
|
||||
void displayCodes(void);
|
||||
void changeCode(char codeBuffer[]);
|
||||
void selectCode(char code[]);
|
||||
void encodeVigenere(char text[], char code[]);
|
||||
void decodeVigenere(char text[], char code[]);
|
||||
|
||||
int main(void) {
|
||||
// -------- Inits --------- //
|
||||
|
||||
char textBuffer[MAX_TEXT_LENGTH];
|
||||
char codeString[CODE_LEN];
|
||||
char input;
|
||||
initUSART();
|
||||
|
||||
// ------ Event loop ------ //
|
||||
while (1) {
|
||||
|
||||
// Menu
|
||||
printFromEEPROM(welcomeString);
|
||||
// .... more fany menu printing
|
||||
printFromEEPROM(menuDecode);
|
||||
input = receiveByte();
|
||||
|
||||
switch (input) {
|
||||
case 'e': // encode
|
||||
encodeVigenere(textBuffer, codeString);
|
||||
break;
|
||||
case 'd': // decode
|
||||
decodeVigenere(textBuffer, codeString);
|
||||
break;
|
||||
case 'n': // new text
|
||||
printFromEEPROM(promptTypeText);
|
||||
enterText(textBuffer);
|
||||
break;
|
||||
case 'c': // choose code
|
||||
selectCode(codeString);
|
||||
break;
|
||||
case 'x': // change code
|
||||
changeCode(codeString);
|
||||
break;
|
||||
}
|
||||
} /* End event loop */
|
||||
return (0); /* This line is never reached */
|
||||
}
|
||||
@@ -0,0 +1,50 @@
|
||||
|
||||
#include <avr/io.h>
|
||||
#include <avr/eeprom.h>
|
||||
#include "USART.h"
|
||||
|
||||
#define MAX_TEXT_LENGTH 256
|
||||
#define CODE_LEN 64
|
||||
|
||||
// -------- Global Variables --------- //
|
||||
char EEMEM code0[CODE_LEN] = "ettubrute";
|
||||
char EEMEM code1[CODE_LEN] = "attackatdawn";
|
||||
char EEMEM code2[CODE_LEN] = "theraininspainfallsmainlyontheplain";
|
||||
char EEMEM code3[CODE_LEN] = "ablewasiereisawelba";
|
||||
char *codePointers[] = { code0, code1, code2, code3 };
|
||||
|
||||
// Menu strings. Why not store them in EEPROM?
|
||||
char EEMEM welcomeString[] = "\r\n--== Vigenere Cipher ==--\r\n";
|
||||
char EEMEM menuEncode[] = " [e] to encode text\r\n";
|
||||
char EEMEM menuDecode[] = " [d] to decode text\r\n\r\n";
|
||||
char EEMEM menuEnterText[] = " [n] to enter new text\r\n";
|
||||
char EEMEM menuCodeText[] = " [c] to select your code phrase\r\n";
|
||||
char EEMEM menuChangeCode[] = " [x] to modify code phrases\r\n";
|
||||
char EEMEM promptCode[] = "code: ";
|
||||
char EEMEM promptText[] = "\r\ntext: ";
|
||||
|
||||
char EEMEM promptSelectCode[] = "Select codephrase:\r\n\r\n";
|
||||
char EEMEM promptTypeText[] = "Type your text: ";
|
||||
|
||||
// Given the address of an EEPROM string, prints it out
|
||||
// Used for menu items
|
||||
void printFromEEPROM(char *eepromString);
|
||||
|
||||
// Takes input from serial, stores it in the text array
|
||||
void enterText(char text[]);
|
||||
|
||||
// Reads code phrases out of EEPROM and prints them.
|
||||
// Uses the codeBuffer for temporary storage
|
||||
void displayCodes(void);
|
||||
|
||||
// Changes a code phrase, both in EEPROM and the current code
|
||||
void changeCode(char codeBuffer[]);
|
||||
|
||||
// Pick a code phrase from EEPROM
|
||||
void selectCode(char code[]);
|
||||
|
||||
// Encodes the passed text string, in place
|
||||
void encodeVigenere(char text[], char code[]);
|
||||
|
||||
// Decodes the passed text string, in place
|
||||
void decodeVigenere(char text[], char code[]);
|
||||
Reference in New Issue
Block a user