[bug #14681] Avrdude fails communication when using -v -v -v -v (4x) about avrdude

[avrs-admin]

Sat 01 Oct 2005 09:59:40 PM UTC

I forgot to mention:

I use avrdude5.0 for Win32.
I downloaded this from Avr "Super-Project"

[avrs-admin]

Joerg Wunsch <joerg_wunsch>
Mon 03 Oct 2005 08:19:34 PM UTC

Can you describe a bit more about your environment?

I've been using -vvvv quite frequently, and never observed a
problem with it.

Perhaps, you can add a full log file.

[avrs-admin]

Thu 06 Oct 2005 09:15:50 PM UTC

I attached two log files per your request.

One showing avrdude doing fine. (3x -v)
One making avrdude fail. (4x -v)

[avrs-admin]

Brian Dean
Thu 27 Oct 2005 02:14:06 PM UTC

This is a bug in ser_send() on Windows, but not Unix (ser_win32.c vs ser_posix.c).  The bug is that the buffer index and the buf itself are incremented within the char output loop and by the time execution reaches the point where the buffer itself needs to be output, the counters have been updated, and thus there is no more data to output.  A temporary variables need to be used for the verbose output loop instead of the originals.

[avrs-admin]

Colin O Flynn <c_oflynn>
Thu 24 Nov 2005 03:01:21 PM UTC

Hello,

Tested Brian Dean's patch on the mailing list, now it works with 3,4, or 16 v's. Commited to CVS.

-Colin