68300

Scott,
 
I have used the free debugger and it is OK.  It is not the last word in debuggers but it is free and it is better than what you have now.
 
(Because you have no debugger at all.)
 
All you need to do is tie the TSTME/TSC pin low and the software does the rest.  If you can't find the documentation, send me a note and I will get it for you.
 
Charlie

-----Original Message-----
From: Scott Newell [mailto:newell@...]
Sent: Tuesday, November 19, 2002 7:21 AM
To: 68300@yahoogroups.com
Subject: Re: [68300] TPU debugging


>I am still being given lots of grief by the TPU and am
>now looking at TPU debuggers, and noticed that John
>Honold talked of puting the 332 into a test mode.

My understand (still untested) is that you have to take TSC low _and_ flip
some register bits to get into test mode, at least on the '332.


>Also anybody got any advice on TPU debuggers that work
>and are free or cheap and any other tools that may
>help with solving TPU issues ?

The original TPU book has a section with some details on the debug hardware
built into the TPU.  There's a copy on the web--google for "TPU microcode
reference" ought to do it.

There's a free dos based TPU debugger (TPUBUG) from Moto out as well, but
I've yet to fire it up.  The readme file for it looks promising.

http://e-www.motorola.com/collateral/TPUBUGDBG.zip <http://e-www.motorola.com/collateral/TPUBUGDBG.zip> 

Charles Melear offered to send TPU info to anyone with a mailing address
not 5 days ago on this very list--you should take him up on it.  Good stuff
in a box.


newell



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