利用单片机实现正反转可控的直流电机

/*************** writer:shopping.w ******************/ #include <reg52.h> #include <intrins.h> #define uint unsigned int #define uchar unsigned char sbit K1 = P3^0; sbit K2 = P3^1; sbit K3 = P3^2; sbit LED1 = P0^0; sbit LED2 = P0^1; sbit LED3 = P0^2; sbit MA = P1^0; sbit MB = P1^1; void main(void) { LED1 = 1; LED2 = 1; LED3 = 0; while(1) { if(K1 == 0) { while(K1 == 0); LED1 = 0; LED2 = 1; LED3 = 1; MA = 0; MB = 1; } if(K2 == 0) { while(K1 == 0); LED1 = 1; LED2 = 0; LED3 = 1; MA = 1; MB = 0; } if(K3 == 0) { while(K1 == 0); LED1 = 1; LED2 = 1; LED3 = 0; MA = 0; MB = 0; } } }