main.c

来自「avr单片机的一些实际应用源码」· C语言 代码 · 共 34 行

/*
	avr-libc EEPROM 读写测试程序 <2313-2>
	main.c
	MCU:at90s2313  
	
	芯艺 2004-09-11
*/

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

#define SET_LED PORTD=0X10;//PD4接有LED

char val1 __attribute__((section(".eeprom")))=0xaa;
char val2[] __attribute__((section(".eeprom")))="hello,this is test eeprom";

int main(void)
{
	DDRD=0X10;
	PORTD=0X00;
	
	eeprom_busy_wait();
	eeprom_write_byte(&val1,0xaa);
	eeprom_busy_wait();
	eeprom_write_block("hello,this is test eeprom",val2,sizeof("hello,this is test eeprom"));
	
	eeprom_busy_wait();
	if(eeprom_read_byte(&val1)==0xaa)
		SET_LED;
		
	while(1);
	return 0;
}