Debugging an Arduino in Clion with Platformio Pluggin?

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1

I’m trying to debug my project to get more detail on what is happening with my dynamically stored memory in my project. I’ve setup Clion (latest version) with platformio IO. I installed the core using python and pip install. I can build and upload to the board successfully but when I insert a breakpoint on a line and attempt to run the debugger, I get the error:

Debugger process ended with exit code 1

I have the Arduino framework installed I believe (I have the Arduino IDE, as well as the platformIO installed on VScode && Clion). Do I need additional drivers or any other framework in order to get the debugger working properly? If so, how do I go about installing that?

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2
  • full platformio.ini?
  • judging from the environment name UNO it seems to me that you want to debug an Arduino Uno. Note that
    • PIO only has simavr, an AVR simulator, built in as a debugger on simulated hardware. it can still fully debug a program, though. It should have launched there, but somehow hasn’t – I’ll investigate.
    • if simulation is not wanted, the Uno needs additional hardware to be debuggable, e.g. via the debugWire protocol with an AVARICE debug probe or similiar. Not debugable (with line-by-line stepping etc.) with just the Uno and its built-in serial port itself
    • PIO does not yet have integrated support for debugging realHW regarding AVRs (unlike Atmel Studio)
3

Here is my platformio.ini.

Note: I happened to figure out the issue with my code without a debugger, however I think it would have certainly been helpful to have that tool at my disposal.

simavr would be fine I would guess, so long as it allows me to step through the program and check variable values and whatever else in memory.

The issue I was having was related to the limited SRAM of the Arduino Uno. I was trying to return a very large String at one time without checking for available memory or periodically flushing the serial buffer .

; PlatformIO Project Configuration File
;
;   Build options: build flags, source filter
;   Upload options: custom upload port, speed and extra flags
;   Library options: dependencies, extra library storages
;   Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html

[env:uno]
platform = atmelavr
board = uno
framework = arduino
lib_deps = 
	mike-matera/ArduinoSTL@^1.1.0
	https://github.com/mpflaga/Arduino-MemoryFree.git
4

@maxgerhardt

Hey Max, any update as to why the debugger isn’t launching? I would appreciate any further help with this. Thanks! :slight_smile:

5

Same problem here. What is going on with it?!

7

Please post a new topic with the exact platformio.ini, code and hardware (microcontroller + debugger) setup that you are working with.