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Problem with WinXP USB CDC w/CCS USB-Serial drivers

 
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bkamen



Joined: 07 Jan 2004
Posts: 1611
Location: Central Illinois, USA

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Problem with WinXP USB CDC w/CCS USB-Serial drivers
PostPosted: Wed Jan 23, 2008 2:58 pm     Reply with quote
Ok, I had this working once upon a time...

Since I can't get my normal app to work, I backpedaled to ex_usb_serial2.c
and it has the same problem.

Windows Enumerates the device. I can connect via hyperterm no problem.

Printing more than a few lines of information cause the PIC to re-enumerate causing hyperterminal to no longer function...

I must:

Exit hyperterm
re-plug the PIC board (so it can re-enumerate again)
restart hyperterm


And watch it happen over again.

I'm doing this on a PIC18F2550 on an meLabs USB protoboard and both my code and the example worked with previous versions of PCH (I'm now using PCHWD).

-Ben

p.s. I tried this on Fedora Core 8 and have the same problems. (using minicom instead)
PCM programmer



Joined: 06 Sep 2003
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PostPosted: Wed Jan 23, 2008 3:03 pm     Reply with quote
Quote:
both my code and the example worked with previous versions of PCH

Use a file comparison utility on the source files for each version of PCH.
See if there's a difference in the new version that breaks your application.
bkamen



Joined: 07 Jan 2004
Posts: 1611
Location: Central Illinois, USA

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PostPosted: Wed Jan 23, 2008 3:10 pm     Reply with quote
PCM programmer wrote:

Use a file comparison utility on the source files for each version of PCH.
See if there's a difference in the new version that breaks your application.


I was afraid someone would say that. :|

Yay - time to go look for the needle in the haystack.

I don't know how long ago this broke.. maybe last year sometime... how many versions have there been since then?

(snicker).

Yay me.

-Ben
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