SCL is pretty much the same as VHDL. With an unknown reason Microchip does
not document it, all they say is to use the click-and-go style generator
which not always meets the needs. You can find some info by people reversing
/ expoiting it on the Microchip forum:

http://direct.forum.microchip.com/tm.aspx?m=3D109149
http://forum.microchip.com/tm.aspx?m=3D111255

I think if you remove the wait commands (not the 'wait for xyz us' but the
ones without parameters) would solve the problem, but also you can put the
whole into one larger process instead of having small ones for every
actions.

Tamas



On 20/09/06, Pavel Ko=F8ensk=FD <pavel.korensky@dator3.cz> wrote:
>
> Hi Tamas,
>
> enclosed is the .SCL file generated by MPLAB.
> I already looked at the file and it seems OK.
>
> Actually, I would also prefere to write the file myself in the text
> editor (I know how to write testbench files for Verilog and/or VHDL),
> but I do not have any description of the SCL language.
>
>
> PavelK
>
> > -----Original Message-----
> > From: piclist-bounces@mit.edu
> > [mailto:piclist-bounces@mit.edu] On Behalf Of Tamas Rudnai
> > Sent: Wednesday, September 20, 2006 2:44 AM
> > To: Microcontroller discussion list - Public.
> > Subject: Re: [PIC] MPLAB, Stimulus file and problem
> >
> >
> > Hi Pavel,
> >
> > Could you attach the SCL file, so that it might show us what
> > could be the problem.
> >
> > BTW: SCL is a quite powerful language actually that is not
> > documented by Microchip. Usually I found easier to write the
> > SCL file by a text editor or even better, convert a WAV file
> > into an SCL using a small dirty tool I wrote
> > -- it looks something like this:
> >
> > //
> > // PWM_strait_1.5.SCL
> > // Generated by WAV2SCL.PL
> > // Thu Jan  1 00:00:00 1970
> > //
> > configuration for "pic12f675" is
> > end configuration;
> >
> > testbench for "pic12f675" is
> > begin
> >     process is
> >         begin
> >         report "Stimulus actions INIT GP3 to LOW for 2ms";
> >         GP3 <=3D '0';
> >         wait for 2 ms;
> >
> >                 loop
> >                         // overall of 22 ms frame rate
> >
> >                         report "STATE:HIGH for 1.5ms";
> >                         GP3 <=3D '1';
> >                         wait for 1.5 ms;
> >
> >                         report "STATE:LOW for 20.5ms";
> >                         GP3 <=3D '0';
> >                         wait for  20.5 ms;
> >
> >                 end loop;
> >     end process;
> > end testbench;
> >
> > Change the processor type for that you have, and pin names
> > etc to whatever that processor uses, then 'ms' to 's' or 'us'
> > accordingly, basically that's it...
> >
> > Tamas
> >
> >
> >
> > On 20/09/06, Pavel Ko=F8ensk=FD <pavel.korensky@dator3.cz> wrote:
> > >
> > > Hello,
> > >
> > > I have a problem with stimulus file in MPLAB 7.30.
> > >
> > > I am debugging software where PIC is receiving packets from simple
> > > radiomodem (868 MHz, AM, OOK). The transmitting side works
> > OK, and I
> > > am trying to debug the receiver. I used the SCL generator
> > in MPLAB and
> > > I created the stimulus file which should drive the receiving pin of
> > > the PIC in MPSIM. In the SCL generator, the whole thing looks like:
> > >
> > > Time units  us
> > >
> > > Time            RB0
> > >
> > > 0               0
> > > 5000000 1
> > > 5004000 0
> > >
> > > and so on
> > >
> > > It means that at time 0, the RB0 pin is low. After 5
> > seconds, the RB0
> > > goes high (start of the transmittion), after 4 ms, RB0 goes
> > low (first
> > > start bit) etc.
> > >
> > > But, when I generate the SCL file and when I attach it to the
> > > simulation, MPLAB react correctly to the first event (RB0
> > going high
> > > after 5 seconds), but the simulator ignore the rest of the
> > file. RB0
> > > never goes low after 4 ms and the rest of the file (the whole
> > > simulated
> > > transmittion) is ignored.
> > >
> > > Anyone have some idea where I am wrong ?
> > >
> > > Thx for your help
> > >
> > > Best regards
> > >
> > > PavelK
> > >
> > > --
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> > >
> >
> >
> >
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> > http://unpic.sourceforge.net
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