STC12C5A单片机串口2进不去中断

只看该作者 · 2015-8-4 13:34

STC12C5A单片机串口2进不去中断，串口1正常通信！
void halUart2Init( void )
{
S2CON = 0x50;       //MODE = 1;  REN = 1;
BRT =0x70;          //Auto reload rate;2400
AUXR &= 0xF7;    //波特率不倍速
AUXR |= 0x14;       //1T       BRTR作为波特率发生器    S2SMOD=0
IPH2 = 0x01;
IP2 = 0x01;    //串口2为最高优先级

AUXR1 &= 0x10;       //RXD->P42;TXD->P4.3

halUart2ClearBuf();

IE2 = 0x01;             //ES2=1 Enable UART2
EA=1;
}
void HalUartIsr2(void) interrupt 8 using 1
{
if(S2CON&S2RI)
{
//       fafa(12);
HAL_LED_ON();
delay(10);
S2CON &= ~S2RI;//Clear receive Flag;
gTimeCnt.time11msCnt = 0;
gUart2RxData.recData = TRUE;

gUart2RxData.buf[gUart2RxData.index++] = S2BUF;
//halUart2SendOneData(12);
}