main.c

基于atmel avr mega8和gcc编译器的读flash固定位置的时钟校准字节的程序。

#include <avr/io.h>
#include <avr/eeprom.h>
#include <avr/pgmspace.h>

#define CAL (void *)0x1ffe

int main(void)
{
  unsigned char a;
  a = pgm_read_byte(CAL);
  OSCCAL = a;
  eeprom_write_byte((unsigned char *)0x07,a);
  eeprom_write_byte((unsigned char *)0x08,a+1);
  while(1);
  return 0;
}