#include <reg51.h>
void UartInit(void) //9600bps@11.0592MHz
{
SCON = 0x50; //8位数据,可变波特率
AUXR |= 0x01; //串口1选择定时器2为波特率发生器
AUXR &= 0xFB; //定时器2时钟为Fosc/12,即12T
T2L = 0xE8; //设定定时初值
T2H = 0xFF; //设定定时初值
AUXR |= 0x10; //启动定时器2
}
void main(void)
{
UartInit();
int i;
unsigned char Chr_Send[12]={"Hello World!"};
while(1)
{
i=12;
while(i--)
{
SBUF=Chr_Send[12-i];
while(!TI)
TI=0
}
}
// 些程序运行后只显示 “ello world!\0"
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