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AW: PCMaster Baud rate

Started by Bende Georg January 30, 2004
The maximum speed I was able to use PCMaster was 38400, but in this case the
routine was called every 300 microseconds. Alternatively you can make it
interrupt-driven but don't expect too much speed increase because it's pretty
tough to process commands and assemble the packets on that speed. I use it
stable 19200 bps.

Georg Bende
Softwareentwickler
Abteilung Elektronik
Dr. Fritz Faulhaber GmbH & Co KG
Daimlerstr. 23
71101 Schaich
Tel: +49 7031 638294 > -----Ursprgliche Nachricht-----
> Von: cmafatcontroller [mailto:]
> Gesendet: Freitag, 30. Januar 2004 04:53
> An:
> Betreff: [motoroladsp] PCMaster Baud rate > I want to up the PCMaster Baud rate from 9600 as it has been
> supplied.
>
> I have found the Baud rate configuration in pmasterdrv.c in the BSP
> directory of SDK, and changed it to every standard increment between
> 9600 and 57600 - e.g. 19200, 38400 etc. I also changed the baud rate
> in PCMaster itself.
>
> The change partially works, in that PCMaster is showing data in the
> watch grid, and the scope sort of works, however it is obviously
> receiving a lot of dud information as well, as big gaps appear in
> the scope plots, and you get '?'s in the watchgrid sometimes instead
> of proper values.
>
> As we are working with Flash only, I can't really use the recorder
> as I don't have enough RAM, hence the desire to up the Baud rate.
>
> Does anyone know why it doesn't work at anything other than 9600,
> and advise how to fix it ? (Cable length is ~2m).
>
> Thanks,
>
> Ian Duncan > _____________________________________
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