Trouble Debugging CH32V203C8T6 Using Arduino

[wburchard]

The marked sentence in the below image leads me to think that Arduino should be able to debug code on CH32V boards, but Arduino seems to not be able to do this.

Am I misunderstanding this sentence? If so, could you please direct me to a description of how to debug code on these chips?

Thank you!

[maxint-rd]

In the past months I've been able to use the debugger within Arduino 2.3.2 IDE (in Windows 11) to debug the CH32V003 quite successfully. Break, step into, watch, etc. all work fine. All I needed to do was to compile with debug symbols and debug optimization.

Unfortunately at the moment I don't have the CH32V203, but coincidentally earlier today I ordered some of these chips (the F8P6 model). Hopefully within a few weeks I can upload some code and then let you know my experience.

In the mean time: What is your environment? Do you perhaps also have the V003 to try first?

[wburchard]

I'm running Arduino 2.3.3 on Windows 11. I just hooked up a CH32V003F4P6. I followed the instructions found at GitHub - openwch/arduino_core_ch32: Core library for CH32duino https://github.com/openwch/arduino_core_ch32. While I can build and flash sketches, Arduino tells me that debugging is not supported:

[image: image.png]

On Sat, Sep 28, 2024 at 4:59 PM Maxint R&D @.***> wrote:

In the past months I've been able to use the debugger within Arduino 2.3.2 IDE (in Windows 11) to debug the CH32V003 quite successfully. At the moment I don't have the CH32V203, but coincidentally earlier today I ordered some of these chips. Hopefully within a few weeks I can upload some code and then let you know my experience.

In the mean time: What is your environment? Do you perhaps also have the V003 to try first?

— Reply to this email directly, view it on GitHub https://github.com/openwch/arduino_core_ch32/issues/150#issuecomment-2380893315, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAUQ2UDM7AKDU4PDJNU7SADZY4KDDAVCNFSM6AAAAABPA5EZX6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDGOBQHA4TGMZRGU . You are receiving this because you authored the thread.Message ID: @.***>

[maxint-rd]

If debugging isn't working for the CH32V003 either, you may not have the latest version of the CH32 Arduino core installed.

Please note that the latest published release is 1.0.4 (dated december 2023), but many new features that have been added are not in that release. For those features you need the code in the main branche.

Debugging was merged in PR #68 "Add debug feature" in february 2024. In the last comment of that PR you can read what someone else did to get debugging working.

(BTW. This core is maintained by @TianpeiLee in his spare time. Although it would be nice to have the latest code published into a proper release, this is the better than no support at all).

[wburchard]

Ah, makes sense now. Could you possibly point me to instructions on how to build and use the latest CH32 Arduino core?

On Sun, Sep 29, 2024 at 11:15 AM Maxint R&D @.***> wrote:

If debugging isn't working for the CH32V003 either, you may not have the latest version of the CH32 Arduino core installed.

Please note that the latest published release is 1.0.4 (dated december 2023), but many new features that have been added are not in that release. For those features you need the code in the main branche.

Debugging was merged in PR #68 https://github.com/openwch/arduino_core_ch32/pull/68 "Add debug feature" in february 2024. In the last comment https://github.com/openwch/arduino_core_ch32/pull/68#issuecomment-2047761549 of that PR you can read what someone else did to get debugging working.

(BTW. This core is maintained by @TianpeiLee https://github.com/TianpeiLee in his spare time. Although it would be nice to have the latest code published into a proper release, this is the better than no support at all).

— Reply to this email directly, view it on GitHub https://github.com/openwch/arduino_core_ch32/issues/150#issuecomment-2381394557, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAUQ2UFMXAAXUHURKNBRPTLZZAKRBAVCNFSM6AAAAABPA5EZX6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDGOBRGM4TINJVG4 . You are receiving this because you authored the thread.Message ID: @.***>

[maxint-rd]

Could you possibly point me to instructions on how to build and use the latest CH32 Arduino core?

I installed release 1.0.4 using the library manager and then copied over the newer sources. Read this post for more details.

In my version I've also made some other changes, for instance to have interrupt driven Serial1 and be able to read VCC. For my CH32V003 projects I also modified the board.txt to allow enabling modules in the IDE. For using watchdog and sleep I modified Adafruit_SleepyDog.

[wburchard]

That did the trick! I'm now successfully debugging my CH32V board.

I did run into the issue where the IDE hangs while downloading index files. However, after finding that others have encountered this and reading the comment chain, I found by unplugging and replugging the board that issue disappeared.

Thanks for your help! I really appreciate it!

On Sun, Sep 29, 2024 at 6:56 PM Maxint R&D @.***> wrote:

Could you possibly point me to instructions on how to build and use the latest CH32 Arduino core?

I installed release 1.0.4 using the library manager and then copied over the newer sources. Read this post https://github.com/openwch/arduino_core_ch32/pull/68#issuecomment-2047761549 for more details.

In my version I've also made some other changes, for instance to have interrupt driven Serial1 https://github.com/openwch/arduino_core_ch32/pull/145 and be able to read VCC https://github.com/maxint-rd/arduino_core_ch32/tree/Fix-reading-PADC_VREF. For my CH32V003 projects I also modified the board.txt to allow enabling modules in the IDE. For using watchdog and sleep I modified Adafruit_SleepyDog https://github.com/maxint-rd/Adafruit_SleepyDog.

— Reply to this email directly, view it on GitHub https://github.com/openwch/arduino_core_ch32/issues/150#issuecomment-2381641785, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAUQ2UHFK5COT54UC5ORARTZZCASJAVCNFSM6AAAAABPA5EZX6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDGOBRGY2DCNZYGU . You are receiving this because you authored the thread.Message ID: @.***>

[maxint-rd]

Good to see you got it working! When I got debugging working I was very pleased. It allowed me to implement features that would otherwise be very hard, such as my PR for I2C-slave and interrupt driven Serial1 to fix lost data in Serial.read().

Congratulations and happy debugging!