無符號字符a;
無符號char * sp?//用於存儲接收數據的數組。
void main()
{
?TMOD = 0x 20;
?SCON = 0x 50;
?th 1 = 0x FD;//波特率9600bps
?TL 1 = 0x FD;
?EA = 1;
?ES = 1;
?tr 1 = 1;
?a = 0;
?sp = 0x30
?while(1);
}
無效ser()中斷4
?RI = 0;
?*(sp+a)= SBUF;
?a++;