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附部分程序
#include <reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit sta = P1 ^ 2; // Æô¶ˉ
sbit bac = P1 ^ 3; // ·′Ïò
sbit pwma = P1 ^ 4; // Õ¼¿Õ±è¼õ
sbit pwms = P1 ^ 5; // Õ¼¿Õ±è¼ó
sbit pwm = P3 ^ 7;
uint number = 0;
uint Zhan = 50;
uint Flag = 0;
void Delay_1ms(uint x)
{
uint i;
uint j;
for (i = 0; i < x; i++)
for (j = 0; j < 148; j++);
}
void Timer0Init()
{
TMOD = 0x01;
ET0 = 1;
EA = 1;
TH0 = (65536 - 100) / 256;
TL0 = (65536 - 100) % 256;
TR0 = 1;
}
void main()
{
Timer0Init();
P3 = 0xFF;
while (1)
{
if (sta == 0)
{
Delay_1ms(200);
P3 = 0xFE;
Flag = ~Flag;
}
if (bac == 0)
{
Delay_1ms(200);
P3 = ~P3;
}
if (pwma == 0)
{
Delay_1ms(100);
Zhan++;
}
if (pwms == 0)
{
Delay_1ms(100);
Zhan--;
}
if (Flag == 0)
{
P3 = 0xFF;
}
if(Zhan>100)
Zhan=0;
}
} |
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