程序如下：
/*************** writer:shopping.w ******************/
#include <reg52.h>
#define uint unsigned int
#define uchar unsigned char
uchar code FFW[]= //正转
{
0x01,0x03,0x02,0x06,0x04,0x0c,0x08,0x09
};
uchar code REV[]= //反转
{
0x09,0x08,0x0c,0x04,0x06,0x02,0x03,0x01
};
sbit K1 = P3^0;
sbit K2 = P3^1;
sbit K3 = P3^2;
void DelayMS(uint ms) //延时
{
uchar i;
while(ms--)
{
for(i=0;i<120;i++);
}
}
void SETP_MOTOR_FFW(uchar n) //正转
{
uchar i,j;
for(i=0;i<1*n;i++)
{
for(j=0;j<8;j++)
{
if(K3 == 0) break;
P1 = FFW[j];
DelayMS(25);
}
}
}
void SETP_MOTOR_REV(uchar n) //反转
{
uchar i,j;
for(i=0;i<1*n;i++)
{
for(j=0;j<8;j++)
{
if(K3 == 0) break;
P1 = REV[j];
DelayMS(25);
}
}
}
void main()
{
uchar N = 1;
while(1)
{
if(K1 == 0)
{ while(K1==0);
P0 = 0xfe; //正转LED指示
SETP_MOTOR_FFW(N);
if(K3 == 0) break;
}
else if(K2 == 0)
{ while(K2==0);
P0 = 0xfd; //反转LED指示
SETP_MOTOR_REV(N);
if(K3 == 0) break;
}
else
{
P0 = 0xfb; //停LED指示
P1 = 0x03;
}
}
}
当按下K1（K2）时怎么每次都正转72°（反转72°）?
怎么让它转18°？ |
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