Yes I'm on an Arch distribution.
Thanks for wireshark tip. I will check USB connection.
How long is breaking/stepping with your setup?
In fact, flash ends successfully through ISP in debugWire mode. But
after, if I want to launch a debug session I must unplug MCU. Reset line
is just pulled up.
This problem is also descriped on this topic :
http://awtfy.com/2012/03/29/hardware-debugging-the-arduino-using-eclipse-and-the-avr-dragon/
"If you get an error, check that you’re using libusb. Also in most cases
just cycling the power on both the Dragon and the Arduino puts it back
to working. If you give avarice a -v flag for verbose it will constantly
spit shit out for you to read and not be interested in as you debug. "
Lah.
Le 09/12/2014 10:27, Armin Otterstätter a écrit :
I assume you're on Linux?
I did the Tracing with Wireshark
(http://wiki.wireshark.org/CaptureSetup/USB). There you can set the
time-display to "relative to previous captured packet" (or similar)
and then you can quickly see where the USB is hanging.
Hmm the DEBUGWIRE SYNC FAILD doesn't sound too good. When I'm
downloading I don't have to unplug. Maybe there is some problem with
the DebugWire communication alltogether. Do you have anything
connected to Reset apart from the AVR Dragon?
Cheers,
Armin
PS.: sorry missed the reply-all in the first response... so now back
to the mailinglist...
2014-12-09 10:14 GMT+01:00 Rémi Pincent <mr.laho...@laposte.net
<mailto:mr.laho...@laposte.net>>:
Hi Armin,
I'm using AVaRICE version 2.13, Sep 19 2014 09:15:10.
According to sf status "AVaRICE 2.12 is the latest release."!
What is your version?
How did you trace these USB issues?
Another question, after flashing code using debugger, I have to
unplug/plug debugger and MCU otherwise when I launch avarice I
have "set paramater command failed: DEBUGWIRE SYNC FAILED", have
you some tips in order to solve this issue?
Cheers
Lah
Le 09/12/2014 10:08, Armin Otterstätter a écrit :
Which Version of avarice are you using?
I had similar problems when using the avarice that came with an
apt-get install on a recent ubuntu (Version 2.11). I traced it
down to some USB timeout issue. But the problem is resolved in
trunk. Just get the most recent version from sf.net <http://sf.net>.
If you're on the trunk already then it'll probably be something
different...
Cheers,
Armin
2014-12-09 9:54 GMT+01:00 Rémi Pincent <mr.laho...@laposte.net
<mailto:mr.laho...@laposte.net>>:
Hi all,
I'm debugging ATmega328p with avarice + avr-gdb + avrdragon
using debugWire.
My binary is compiled with following options : -g2 -gstabs -O0
-ffunction-sections -fdata-sections -std=gnu99
All is right... But debugging is very slow, stepping is
awfully slow
(~5s), and breaking is also quite slow (~2s).
Moreover if have often to reflash code, it seems flash get
corrupted
when debug sessions does not finish cleanly.
I've written topic about this issue here
http://www.avrfreaks.net/forum/avrdragon-debugwire-atmega328p-nice-unusable
But for now, I haven't found any people working with a usable
debugging
environment with debugWire and avr-gdb... Suggestions are
about changing
toolchain and debugging tools in order to use some
proprietary solutions...
Have you got some suggestions in order to debug efficiently?
Regards.
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