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#include "AT89X52.h"
#include "intrins.h"
// Definition for output port and input pins
#define out_port P3
unsigned char const sequence[8] = {0x02,0x06,0x04,0x0c,0x08,0x09,0x01,0x03};
sbit key_for = P1 ^ 2;
sbit key_rev = P1 ^ 3;
sbit Inc = P1 ^ 0;
sbit Dec = P1 ^ 1;
sbit Dir = P2 ^ 0;
sbit PWM = P2 ^ 1;
int speed;
void delay(unsigned int j)
{
for(; j>0; j--);
}
void delayms(unsigned int j)
{
unsigned char i;
for(; j>0; j--)
{
i = 120;
while (i--);
}
}
void DCMotoDeal(void)
{
if(!Inc)
{
speed = speed > 0 ? speed - 1 : 0;
}
if(!Dec)
{
speed = speed < 500 ? speed + 1 : 500;
}
PWM=1;
delay(speed);
PWM=0;
delay(500-speed);
}
void StepMotoDeal(void)
{
unsigned char i;
if (!key_for)
{
i = i<8 ? i+1 : 0;
out_port = sequence[i];
delayms(50);
}
else if (!key_rev)
{
i = i>0 ? i-1 : 7;
out_port = sequence[i];
delayms(50);
}
}
void main(void)
{
// 選擇方向和時間
Dir = 1;
if (Dir)
{
speed = 400;
}
else
{
speed = 100;
}
out_port = 0x03;
while(1)
{
DCMotoDeal();
StepMotoDeal();
}
}
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