Forums

Using DSPCOMMPARALLEL

Started by Lionel Degoutte July 1, 2003
I have The evaluation board DSP56F807 EVM-1 with codewarrior 5.0. The
communication between the computer and the evaluation board is very slow
when I want to run or stop the program. Moreover I can put only on
breakpoint in the program.
Can someone tell me if there is the same limitations with the parallel port
command converter "DSPCOMMPARALLEL"
Thanks.



How slow is slow for run and stop of program ? The limit of one breakpoint is for when you are using hardware breakpoints. This type of breakpoint is what you need to use when debugging from flash and uses the hardware breakpoint features of the once port and has nothing to do with the command converter connection. You can get an unlimited number of breakpoints if you use software breakpoints, but you will have to run from RAM.
 
Also you can instrument your code with debug statements using the inline assembler and get more 'breakpoints' when running from flash but you will not be able to turn them on and off. Thanks.
 
- Bill
-----Original Message-----
From: Lionel Degoutte [mailto:l...@rotronics.com]
Sent: Tuesday, July 01, 2003 1:43 AM
To: yahoo dsp56f807
Subject: [motoroladsp] Using DSPCOMMPARALLEL

I have The evaluation board DSP56F807 EVM-1 with codewarrior 5.0. The
communication between the computer and the evaluation board is very slow
when I want to run or stop the program. Moreover I can put only on
breakpoint in the program.
Can someone tell me if there is the same limitations with the parallel port
command converter "DSPCOMMPARALLEL"
Thanks.


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>> I have The evaluation board DSP56F807 EVM-1 with codewarrior 5.0. The
communication between the computer and the evaluation board is very slow
when I want to run or stop the program. Moreover I can put only on
breakpoint in the program.
Can someone tell me if there is the same limitations with the parallel port
comand converter "DSPCOMMPARALLEL" <<

The speed issue's not a limitation with the parallel converter apparently, but
a problem with Codewarrior. I'm told that Metrowerks are being hassled to
speed it up! I hope they hurry up! ;-)

The one breakpoint limitation is down to the DSP itself. It only has the
capability to do one breakpoint in its hardware when running out of flash.

You can set, I think, three when running out of external RAM with the demo
boards.