In article <199708150255_MC2-1D2C-8BBD@compuserve.com>, Alex Barrett
<Alex_Barrett@COMPUSERVE.COM> writes
>I'm using the simulator in MPLAB 3.12 to simulate a UART async transmit on
>a 16C65A. The simulator expects the TXSTA(TRMT) to be one way up, but the
>hardware expects the opposite polarity.
>Hence if I use a loop to wait for the previous transmit to finish, either
>it simulates but locks up the PIC, or it works in practice but loops
>forever in the simulation.
>I've listed the code that works for the hardware, to simulate I'd have to
>change the bit test to 'btfsc'
>
><<transmit:     movwf   TMTDATA
>                btfss   TXSTA,TRMT
>                goto    transmit
>                movf    TMTDATA,W
>                movwf   TXREG
>                retlw   0       >>
>
>Anyone else fallen foul of this one?
>
>* Alex_Barrett@iee.org ~ Norwich, UK

I know this is not really the reply you where looking for but, have you
ever used the Serial communications on the 16C65A within the simulator
environment?

As I have been told that the simulator does not simulate the SPI, but
that shouldn't stop me from manual putting values into the SPI input
buffer don't you think

Carl
--
Carl Wainwright, Design Engineer        Tel +44 (0) 1635 584000
Controlware Ltd.                        Fax +44 (0) 1635 548098
Newbury, U.K.          E-mail cwainwright@cware-dev.demon.co.uk