> Where is it solved?  I simulated the code and found this problem (but it

In the receive_bit function... He uses the same technique, but implemented
the status incrementation in a proper way (I'd use INCF + SKPNZ instead but
does not really matter, it's just matter of taste :-) )

Tamas



On Wed, May 14, 2008 at 2:47 PM, Michael Rigby-Jones <
Michael.Rigby-Jones@bookham.com> wrote:

> > On Wed, May 14, 2008 at 2:42 PM, Mark Scoville
> > <mscoville@unicontrolinc.com>
> > wrote:
> >
> > > Hi Matthew...
> > >
> > > Are you sure you don't really want a DCFSNZ instead of DECFSZ here
> in
> > > set_tx_bit...
> > >
> > >        bcf     INTCON, T0IF    ; Clear the interrupt flag
> > >        decfsz  bit_count, F   <---- **** maybe you intended
> DCFSNZ???
> > ****
> > >         incf    state, F        ; All the bits have been set,
> advance to
> > > the
> > > next state.
> > >
> > > Looks like maybe first time through you only send 1 bit, increment
> the
> > > state
> > > to 4, and bail out.
> > >
> > > -- Mark
>
>
> > -----Original Message-----
> > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On
> Behalf
> > Of Tamas Rudnai
> > Sent: 14 May 2008 14:05
> > To: Microcontroller discussion list - Public.
> > Subject: Re: [PIC] Help debugging a software UART routine.
> >
> > > Are you sure you don't really want a DCFSNZ instead of DECFSZ here
> in
> >
> > OP uses 12F629 where there is no instruction or such pseudo one, but
> he
> > solved it elsewhere in his code already, so he will be just fine I
> > think :-)
> >
> > Tamas
>
>
> Tamas,
>
> Where is it solved?  I simulated the code and found this problem (but it
> had already been reported when I checked the thread).  This bug does
> appear to be the main problem, only one data bit is sent before the stop
> bit is sent.
>
> Regards
>
> Mike
>
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