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晶振用內部8MHz,仿真是二極管不亮
#include<iom16.h>
#define uchar unsigned char
#define uint unsigned int
void delay_ms(uint k)
{
uint i,j;
for(i=0;i<k;i++)
{
for(j=0;j<570;j++)
;
}
}
void main(void)
{
DDRA=0x00;
PORTA=0xff;//
while(1)
{
PORTA=0xaa;
delay_ms(500);
PORTA=0x55;
delay_ms(500);
}
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