tools.c

AVR单片机,STK500下载线制作全套资料,包括程序,电路图

#include "stk500.h"

static unsigned int t1_tick;

//Konstanten im EEPROM
//#define EEPROM  __attribute__ ((section (".eeprom")))

//Variablen im EEPROM
//EEPROM unsigned char eeprom_sck_period=10;
//unsigned char eeprom_sck_period=10;

#ifndef __iom88v_h
#pragma interrupt_handler T1_OCR1A: 7	/*meag8*/
#else
#pragma interrupt_handler T1_OCR1A: 12	/*mega88*/
#endif
void T1_OCR1A(void) {
	t1_tick --;
}

/*延时函数*/
//void wait_ms(unsigned int n) {
//
//	unsigned int a, b;
//	for (a = 0; a < n; a++) {
//		for (b = 600; b; b--) {
//			;
//			}
//		}
//}

unsigned char get_t1_tick(void) {
	if(t1_tick) {
		t1_tick=0;
		return 1;
		}
	return 0;
}

void wait_ms(unsigned int n) {
	while(n) {
		if (get_t1_tick()) {
			n --;
			}
		}
}