键盘控制流水灯（protuse+C）

#include<reg52.h> #include<intrins.h> #define data P2 #define uint unsigned int void delay10ms(void); void delay500ms(void); void found(void); void initEx0(void); sbit start_signal = P1^2; sbit stop_singal = P1^3; sbit up_to_down = P1^4; sbit down_to_up = P1^5; sbit inter_signal = P3^2; uint fp = 1; int main() { initEx0(); while(1) { if(!(start_signal && stop_singal && up_to_down && down_to_up)) { delay10ms(); if(!(start_signal && stop_singal && up_to_down && down_to_up)) { inter_signal = 0; } } switch(fp) { case 0:data = 0x01;delay500ms();while(1){data = _crol_(data,1);delay500ms();if(!(start_signal && stop_singal && up_to_down && down_to_up))break;}break; case 1:data = 0x00;break; case 2:while(1){data = data = _crol_(data,1);delay500ms();if(!(start_signal && stop_singal && up_to_down && down_to_up))break;}break; case 3:while(1){data = data = _cror_(data,1);delay500ms();if(!(start_signal && stop_singal && up_to_down && down_to_up))break;}break; default:data = 0x00;break; } } return 0; } void delay10ms(void) { unsigned char a,b,c; for(c=1;c>0;c--) for(b=38;b>0;b--) for(a=130;a>0;a--); } void delay500ms(void) { unsigned char a,b,c; for(c=23;c>0;c--) for(b=152;b>0;b--) for(a=70;a>0;a--); } void found(void) { if(start_signal == 0) { delay10ms(); if(start_signal == 0) { while(!start_signal); fp = 0; } } if(stop_singal == 0) { delay10ms(); if(stop_singal == 0) { while(!stop_singal); fp = 1; } } if(up_to_down == 0) { delay10ms(); if(up_to_down == 0) { while(!up_to_down); fp = 2; } } if(down_to_up == 0) { delay10ms(); if(down_to_up == 0) { while(!down_to_up); fp = 3; } } while(!(start_signal && stop_singal && up_to_down && down_to_up)); } void initEx0() { EA = 1; EX0 = 1; IT0 = 1; } void Ex0_intr() interrupt 0 { found(); inter_signal = 1; }