I've installed trunk version thanks to this packet :
https://aur.archlinux.org/packages/avarice-svn
=>break is very quick! but stepping (s in gdb) takes ~2s
About flashing over debugWire (solution to poweroff / on problem), it
isn't very reliable compared to ISP. I get lot of mismatch error using
avrdude. Using avarice seems deprecated.
What is avarice command you used in order to flash using debugWire?
Little by little debugging becomes possible thanks to your help... Many
thanks.
Le 09/12/2014 16:15, Armin Otterstätter a écrit :
Okay then I would recommend you to build avarice from source.
Althought the package you installed states version 2.13 which
apparently is the most recent one, a lot has changed on trunk in the
meantime (Maybe a new release should be issued?).
Anyways for me building from source fixed that problem.
2014-12-09 15:37 GMT+01:00 Rémi Pincent <mr.laho...@laposte.net
<mailto:mr.laho...@laposte.net>>:
"You should be using dragon_dw otherwise it will temporarily
activate ISP and then debugwire is only possible after
power-cycle. So this solves that problem."
:-) 1 problem solved. Now power off/on no more needed before
launching avarice!
I've attached wireshark logs :
you will find until frame 24 a break
and then from 25 to 132 is a step.
I'm using this avarice package :
https://aur.archlinux.org/packages/avarice/ with
https://aur.archlinux.org/packages/av/avarice/PKGBUILD
libusb used is 1.0.19-1
Le 09/12/2014 15:14, Armin Otterstätter a écrit :
You should be using dragon_dw otherwise it will temporarily
activate ISP and then debugwire is only possible after
power-cycle. So this solves that problem.
About the USB delay. This is about the same time as I measured.
And this relates to some USB-timeout. Is your avarice compiled
with libusb 2.0 ? Could you post the Wireshark log?
2014-12-09 15:00 GMT+01:00 Rémi Pincent <mr.laho...@laposte.net
<mailto:mr.laho...@laposte.net>>:
I've monitored usb using wireshark : break takes 1s, step
takes 3s. Duration between 2 USB packets is at max 0.5s.
I'm glad to hear someone debugging at lightspeed with avarice
+ gdb. I hope I will manage to have such a setup.
I'm using avrdude for programming :
* avrdude -pm328p -c dragon_isp -Pusb -v -U
flash:w:arduino_avr_template_avr_plugin.hex:i*
debugWire fuse is set, so when I flash I have following logs :
* avrdude: jtagmkII_setparm(): bad response to set
parameter command: RSP_FAILED
avrdude: jtagmkII_getsync(): ISP activation failed,
trying debugWire
avrdude: Target prepared for ISP, signed off.*
... then program is flashed. As I understand, ISB programming
is used with debugWire fuse enabled.
Even if I wait during some seconds avarice won't run
successfully, I have these logs :
*AVaRICE version 2.13, Sep 19 2014 09:15:10*
* JTAG config starting.**
** Found a device: AVRDRAGON**
** Serial number: 00:a2:00:04:72:83**
** set paramater command failed: DEBUGWIRE SYNC FAILED**
** Failed to activate debugWIRE debugging protocol**
** USB bulk read error: Input/output error**
** USB daemon died
*
If I power off/power on MCU then avarice launches successfully.
Now I will test avarice programming.
Le 09/12/2014 13:13, Armin Otterstätter a écrit :
breaking/stepping is instantly on my setup. At least so fast
that it just noteable to me.
Regarding the ISP issue are you using avarice or avrdude for
programming? If avrdude, are you then using dragon with ISP
or debugwire?
For me programming with avarice is working just fine. But
when I use avrdude (which by itself also works just fine) I
have to add some delay before invoking avarice otherwise
avarice cannot open the USB. Because of that its
(unfortunately) impossible to run avrdude as a shell command
through .gdbinit.
2014-12-09 11:34 GMT+01:00 Rémi Pincent
<mr.laho...@laposte.net <mailto:mr.laho...@laposte.net>>:
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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