4个口输出

7.
/************************************************************
*89C51、S51单片机32个IO口流水灯测试程序
*Flash0、1、2、3分别对应单片机的P0、1、2、3四个口*a程序对应流水灯从全灭到一个一个亮
*b程序对应流水灯从全亮到一个一个灭
*************************************************************/ #include
#include
#include
#define uchar unsigned char
#define uint unsigned int
#define TimeDelay 60000
void delay(uint n);
void Flash0a(void);
void Flash0b(void);
void Flash1a(void);
void Flash1b(void);
void Flash2a(void);
void Flash2b(void);
void Flash3a(void);
void Flash3b(void);
/************************************************************
*Function: 主函数
*parameter:
*Return:
*Modify:
*************************************************************/ void main(void)
{
while(1)
{
Flash1b();
Flash1a();
delay(TimeDelay);
delay(TimeDelay);
Flash0b();
Flash0a();
Flash2b();
Flash2a();
Flash1a();
Flash3b();
Flash3a();
}
}
/************************************************************ *Function: 延时
*parameter:
*Return:
*Modify:
*************************************************************/ void delay(uint n)
{
while(n!=0)
{
n--;
}
}
void Flash0a(void)
{
uchar i;
uchar Temp;
Temp = 0x80;
for(i=0;i<8;i++)
{
P0 = ~Temp;
delay(TimeDelay);
Temp = Temp >> 1;
}
P0 = 0xff;
}
void Flash0b(void)
{
uchar i;
uchar Temp;
Temp = 0x80;
for(i=0;i<8;i++)
{
P0 = Temp;
delay(TimeDelay);
Temp = Temp >> 1;
}
}
void Flash1a(void) {
uchar i;
uchar Temp;
P1 = 1;
Temp = 0x80;
for(i=0;i<8;i++) {
P1 = ~Temp; delay(TimeDelay); Temp = Temp >> 1; }
P1 = 0xff;
}
void Flash1b(void) {
uchar i;
uchar Temp;
P1 = 1;
Temp = 0x80;
for(i=0;i<8;i++) {
P1 = Temp;
delay(TimeDelay); Temp = Temp >> 1; }
P1 = 0;
}
void Flash2a(void) {
uchar i;
uchar Temp;
P2 = 1;
Temp = 0x80;
for(i=0;i<8;i++) {
P2 = ~Temp; delay(TimeDelay); Temp = Temp >> 1; }
P2 = 0xff;
}
void Flash2b(void) {
uchar i;
uchar Temp;
P2 = 1;
Temp = 0x80;
for(i=0;i<8;i++) {
P2 = Temp;
delay(TimeDelay); Temp = Temp >> 1; }
P2 = 0;
}
void Flash3a(void) {
uchar i;
uchar Temp;
P3 = 1;
Temp = 0x80;
for(i=0;i<8;i++) {
P3 = ~Temp; delay(TimeDelay); Temp = Temp >> 1; }
P3 = 0xff;
}
void Flash3b(void) {
uchar i;
uchar Temp;
P3 = 1;
Temp = 0x80;
for(i=0;i<8;i++) {
P3 = Temp;
delay(TimeDelay); Temp = Temp >> 1; }
P3 = 0;
}
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