STC89C51 串口通信波特率设置
//9600T2L = 0xE0; //设定定时初值T2H = 0xFE; //设定定时初值//115200T2L = 0xE8; //设定定时初值T2H = 0xFF; //设定定时初值`
//9600T2L = 0xE0; //设定定时初值T2H = 0xFE; //设定定时初值//115200T2L = 0xE8; //设定定时初值T2H = 0xFF; //设定定时初值`