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单片机 AT89C51 正反转可控的直流电机.
单片机源程序：
- /*************** 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;
- }
- }
- }
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