timer_soft_test.rar_Soft!_软件定时器

#include <stdio.h> #include "vc5402.h" #include "main.h" UBYTE blink = 0; TIMER Timer_led; //运行状态灯定时器 interrupt void Timer0Isr(void); //定时器0中断 interrupt void SINT17_Isr(void); //软件中断17# void led_start(); //软件定时器初始化 void TimerInit() { Timer_led.run = 0; Timer_led.flow = 0; Timer_led.period = 0; } /* led timer start*/ void led_start() { Timer_led.run = 0; Timer_led.flow = 0; Timer_led.period = 5; Timer_led.run = 1; } /* led timer stop*/ void led_stop() { Timer_led.run = 0; Timer_led.flow = 0; } /* led timer timeout function*/ void led_timeout() { if(blink) { asm(" STM #080H,03dh"); //置HD1为0 blink = 0; } else { asm(" STM #0c0H,03dh"); //置HD1为0 blink = 1; } led_start(); } //定时器0中断服务程序 interrupt void Timer0Isr(void) { unsigned char i,j; if(Timer_led.run) { if(--Timer_led.period == 0) { // led_timeout(); asm(" INTR 2"); } } } interrupt void SINT17_Isr(void) { led_timeout(); }