Atmega32 debugging with avarice and avr-gdb

Ideas
1

Hello,

I would like to debug my simple blink C code for Atmega32 board with the following item on Linux.
AVR JTAG USB
Seems to be a clone of Atmel JTAG ICE (mkI) debugger.

I’m trying to use avarice with avr-gdb, but I have problems with setting up this debug environment correctly.

Is PlatformIO currently supporting this feature?

Thank you very much!

Best regards,
Mate

2

This is really great!
I could setup the environment.

My config:

[env:ATmega32]
platform = atmelavr
framework = arduino
board = ATmega32
debug_port = :4242
debug_load_cmds = 
debug_load_mode = manual
debug_tool = custom
debug_init_cmds =
  target remote $DEBUG_PORT
  file "$PROG_PATH"
  load /home/faeren/Projects/PlatformIO/testatmega32/.pio/build/ATmega32/firmware.elf
debug_server =
  avarice
  -1 
  -j/dev/ttyUSB0 
  --ignore-intr 
  :4242

I just have problems with adding breakpoints and stepping out of functions.

Adding breakpoint:

image
image1909×1051 208 KB

In case of stepping out the debug session just closes.

Do you have any idea why?

Thanks for your support!

Best regards,
Mate

1 Like
3

Interesting that AVARICE gets this far. Are you using the latest version from AVaRICE download | SourceForge.net?

When you go into “Output” is there any indication on why avarice has closed the connection? You might also get a better output if you replace the debug_server = with a dummy executable (like, true) and open avarice with the same command beforehand, then PIO will connect to it and you might get better debugging output from avarice.

4

I’m using the latest version from Arch linux repository which is
AVaRICE version 2.14svn20200906, Sep 9 2020 14:10:27

Visual Studio Code output is empty.

Avarice is just writing Segmentation fault (core dumped).

image
image836×785 110 KB

5

Yikes seems like a bug in the avarice code then. I guess you could dig down deeper by not starting avarice normally in a terminal but prefixed with gdb and again observe the crash and stack trace (if debug symbols are available in your avarice build). But mainly I think a bug should be filed at AVaRICE / Bugs with a reproducable project.

6

Thank you!

I just raised a ticket there.
Let’s see.