如下的代碼內容是關於C語言串口測試程序的代碼，應該是對小夥伴們有一些用。
#include<stdio.h>
unsigned int UART0_ADDR = 0x20080000;
unsigned int retu=0;
int i=0;
void delay_x(unsigned short cycles)
{
unsigned short t;
t = cycles;
while ( --t != 0 );
}
int main()
{




while(1)
{
{
retu = retu&0xff;
}
retu = 0;
delay_x(0X7000);
}
return 0;
}

C語言串口測試程序源碼