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/*水泵定時(shí)系統(tǒng)*/
#include "reg52.h"
#include "intrins.h"
#define uchar unsigned char
#define uint unsigned int
uchar a;
uchar temp;
//-----------------------------------------------
#define FOSC 12000000L
void delay_fen(void)
//延時(shí)一分鐘
{
unsigned char j;
unsigned int i;
for(i=0;i<60000;i++)
{
for(j=0;j<200;j++);
for(j=0;j<102;j++);
}
}
main()
{
while(1)
{
P1=temp=0xfe;
delay_fen();
for(a=0;a<6,a++;)
//P10至P15端口依次輸出低電平,時(shí)間一分鐘
{
temp<<=1;
temp|=0x01;
P1=temp;
delay_fen();
}
}
}
萬(wàn)用表檢測(cè),一直是P10端口為0,別的端口都是高電平不變,是程序沒(méi)有朝下執(zhí)行嗎?
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