Post by thread:Simulating P16F87x USART on MPLAB

Hi, Is it possible to simulate a P16F87x USART receive interrupt (i.e. set the RCIF flag) using a Debug stimulus (Debug>Simulator Stimulus>....) under MPLAB for Windows ver. 4.0. If so, should asynchronous, clock or register stimulus be used when the following simple code is run? ORG 0X000 RESET_V GOTO START ORG 0X004 RX_INT_V GOTO $ START BCF STATUS,RP0 CLRF PORTC BSF STATUS, RP0 MOVLW B'11000000' MOVWF TRISC&0X07F MOVLW D'103' MOVWF SPBRG&0X07F MOVLW 0X40 MOVWF TXSTA&0X07F BSF PIE1&0X07F,TXIE BSF PIE1&0X07F,RCIE BSF INTCON,GIE BSF INTCON,PEIE BCF STATUS,RP0 MOVLW 0X90 MOVWF RCSTA GOTO $ END

Dean Biddle wrote: > > Hi, > > Is it possible to simulate a P16F87x USART receive interrupt (i.e. set the > RCIF flag) using a Debug stimulus (Debug>Simulator Stimulus>....) under > MPLAB for Windows ver. 4.0. If so, should asynchronous, clock or register > stimulus be used when the following simple code is run? To the best of my knowledge, MPLAB does not support serial comms on V4 and on V5. -- Best regards Tony http://www.picnpoke.com spam_OUTsalesTakeThisOuTpicnpoke.com

I think the only form of serial communication simulated is if you have the MSSP set to do SPI communication. That seems to work, but I don't think any other serial communication (other ways to configure the MSSP or USART) will work. Ben {Original Message removed}

Dean Biddle wrote: > > Hi, > > Is it possible to simulate a P16F87x USART receive interrupt (i.e. set the > RCIF flag) using a Debug stimulus (Debug>Simulator Stimulus>....) under > MPLAB for Windows ver. 4.0. If so, should asynchronous, clock or register > stimulus be used when the following simple code is run? > <snip> What I did was use the "modify" option to change the contents of RCREG and set PIR1<RCIF> whenever I wanted to simulate the reception of data. Note that you have to manually clear the RCIF flag as the simulator DOES NOT simulate the UART itself...(this brought me much frustration last week) hope this helps, D