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Hi Tamas,

enclosed is the .SCL file generated by MPLAB.
I already looked at the file and it seems OK.=20

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=20
> [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
>=20
>=20
> Hi Pavel,
>=20
> Could you attach the SCL file, so that it might show us what=20
> could be the problem.
>=20
> BTW: SCL is a quite powerful language actually that is not=20
> documented by Microchip. Usually I found easier to write the=20
> SCL file by a text editor or even better, convert a WAV file=20
> into an SCL using a small dirty tool I wrote
> -- it looks something like this:
>=20
> //
> // PWM_strait_1.5.SCL
> // Generated by WAV2SCL.PL
> // Thu Jan  1 00:00:00 1970
> //
> configuration for "pic12f675" is
> end configuration;
>=20
> testbench for "pic12f675" is
> begin
>     process is
>         begin
>         report "Stimulus actions INIT GP3 to LOW for 2ms";
>         GP3 <=3D '0';
>         wait for 2 ms;
>=20
>                 loop
>                         // overall of 22 ms frame rate
>=20
>                         report "STATE:HIGH for 1.5ms";
>                         GP3 <=3D '1';
>                         wait for 1.5 ms;
>=20
>                         report "STATE:LOW for 20.5ms";
>                         GP3 <=3D '0';
>                         wait for  20.5 ms;
>=20
>                 end loop;
>     end process;
> end testbench;
>=20
> Change the processor type for that you have, and pin names=20
> etc to whatever that processor uses, then 'ms' to 's' or 'us'=20
> accordingly, basically that's it...
>=20
> Tamas
>=20
>=20
>=20
> 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=20
> > radiomodem (868 MHz, AM, OOK). The transmitting side works=20
> OK, and I=20
> > am trying to debug the receiver. I used the SCL generator=20
> in MPLAB and=20
> > I created the stimulus file which should drive the receiving pin of=20
> > 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=20
> seconds, the RB0=20
> > goes high (start of the transmittion), after 4 ms, RB0 goes=20
> low (first=20
> > start bit) etc.
> >
> > But, when I generate the SCL file and when I attach it to the=20
> > simulation, MPLAB react correctly to the first event (RB0=20
> going high=20
> > after 5 seconds), but the simulator ignore the rest of the=20
> file. RB0=20
> > never goes low after 4 ms and the rest of the file (the whole=20
> > simulated
> > transmittion) is ignored.
> >
> > Anyone have some idea where I am wrong ?
> >
> > Thx for your help
> >
> > Best regards
> >
> > PavelK
> >
> > --
> > http://www.piclist.com PIC/SX FAQ & list archive
> > View/change your membership options at=20
> > http://mailman.mit.edu/mailman/listinfo/piclist
> >
>=20
>=20
>=20
> --=20
> unPIC -- The PIC Disassembler
> http://unpic.sourceforge.net
> --=20
> http://www.piclist.com PIC/SX FAQ & list archive
> View/change your membership options at=20
> http://mailman.mit.edu/mailman/listinfo/piclis> t
>=20

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