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本帖最后由 闫明涛 于 2020-10-26 16:06 编辑
- #include <reg52.h>
- unsigned long beats=0;
- void startmotor(unsigned long angle);
- void main()
- {
- EA=1;
- TMOD=0X01;
- TH0=0XF8;//2ms
- TL0=0XCD;
- ET0=1;
- TR0=1;
- startmotor(360);
- while(1);
- }
- void startmotor(unsigned long angle)
- {
- EA=0;
- beats=(angle*4076)/360;//防止因为中断导致计算错误,因为以后的中断中需要使用到beats
- EA=1;
- }
- void InterruptTimer0() interrupt 1
- {
- unsigned char tmp;
- static unsigned char index=0;
- unsigned char code beetcode[8]={0xe,0xc,0xd,0x9,0xb,0x3,0x7,0x6};//节拍对应IO口代码
- TH0=0XF8;
- TL0=0XCD;
- if(beats!=0)
- {
- tmp=P1&0xf0;
- tmp|=beetcode[index];
- P1=tmp;
- index++;
- if(index>=8)index=0;
- beats--;
- }
- else
- P1=P1|0X0F;//关闭所有相位
- }
- 电机引脚接P1^0~P1^3;
- 主函数调用void startmotor(unsigned long angle)；即可设置指定角度旋转精度为1度
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