Serial communications interface interrupt error!

stone_zhang — Mon, 04 Jun 2012 13:31:28 GMT

please help!

Now I am writing SCI code, but i recieve two interrupt unexpectedly ,when i send one byte via pc serial port .

Following is my code, it's simple. i can't find any error in it.

void SCI3_Init(void)

{

setReg8(SCI1_C2, 0x00U);

(void)getReg8(SCI1_S1);

(void)getReg8(SCI1_D);

setReg8(SCI1_S2, 0x00U);

setReg8(SCI1_BDH, 0x00U);

setReg8(SCI1_BDL, 0x68U);

setReg8(SCI1_C1, 0x00U);

setReg8(SCI1_C3, 0x00U);

setReg8(SCI1_C2, 0x2CU);

}

ISR(sci_rx_interr) {

(void)getReg8(SCI1_D);

}

8-bit MicrocontrollersのトピックSerial communications interface interrupt error!