问答-
串口通信接收2个以上字节出乱码
voidUSART2_ISR(void)interrupt8using1{unsignedcharredata;unsignedchari=0;RW485=LOW;if(S2CON&1){var0=0;redata=S2BUF;var=redata;var+=var0;combuf[compointer++]=redata;if((S2CON&0x04)==P){buf[0]=0x21;buf[1]=0x22;SendStr232(2);}S2CON&=(~1);}}代码如上，串口调试助手发送1个字节正常，发送2个以上收到的是乱码
2023-05-08 2
