Started following some tutorial on att85 usi. Downloaded example code from make avr book.

Make AVR Examples/Chapter18_Using-Flash-Program-Memory/progmemDemo3/progmemDemo3.c

@@ -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 */
+}