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 = 0x04; 定时器2时钟为Fosc即1T T2L = 0xE8; 设定定时初值 T2H = 0xFF; 设定定时初值 T2L = 0xE0; 设定定时初值 T2H = 0xFE; 设定定时初值 AUXR = 0x10; 启动定时器2 ES = 1; 上面

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 |= 0x04; //定时器2时钟为Fosc,即1T T2L = 0xE0; //设定定时初值 T2H = 0xFE; //设定定时初值 AUXR |= 0x10; //启动定时器2 ES = 1;