AVR_INT.rar_avr int0_avr 中断按键_avr中断按键_按键 AVR

#include <iom8v.h> #include "macros.h" #define uchar unsigned char #define uint unsigned int uchar ledCode[]={0xc0,0xf9,0xa4,0xb0,0x99, 0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e,0xbf}; uint count=0,n=0,m=0; void delay_1ms(void) //1ms延时函数 { uint i; for (i=0;i<1140;i++); } void delay_nms(uint n) //N ms延时函数 { uint i=0; for (i=0;i<n;i++) delay_1ms(); } //中断初始化 void interrupt_init(void) { MCUCR |= (1<<ISC11)|(1<<ISC00)|(1<<ISC01);//INT1下降沿触发，INT0上升沿触发 GICR |= (1<<INT0)|(1<<INT1);//使能INT0，INT1 SEI();//全局中断使能 } //INT0中断程序 #pragma interrupt_handler int0_isr:iv_INT0 void int0_isr(void) { n=1; m=0; count++; } //INT1中断程序 #pragma interrupt_handler int1_isr:iv_INT1 void int1_isr(void) { m=1; n=0; count--; } //执行按键1对应的程序 void jian1(void) { PORTB = ledCode[count]; PORTC |= (1<<0); if (count>16) count=0; } //执行按键2对应的程序 void jian2(void) { PORTB = ledCode[count]; PORTC |= (1<<0); if (count==0) count=16; } //主函数 void main(void) { DDRB = 0XFF; PORTB = 0XFF; DDRC = 0XFF; PORTC = 0X00; interrupt_init(); while(1) { if(n==1) jian1(); if(m==1) jian2(); } }