Ringo ESP32 debugging with ESP-Prog

ā˜Žļø Ringo (MAKERphone) šŸ”Ø Hardware & DIY electronics
#1

Good day,

how would I go about debugging the Ringo firmware code with an ESP-Prog? Iā€™d love to get step-by-step debugging, which would simultaneously help me peruse your solution.

Can this be done, and should the ESP-Prog just be hooked to the correct pins on the brain-board? Can the pins even be used, as they are soldered (and perhaps already in use).

I see in your code(Makerphone.cpp) that you have a lot of debug prints to the serial, but surely this isnā€™t the only way to proceed or the way youā€™ve worked in developing the OSā€¦?

#2

Hello!

Ringo is one of our older devices, from way back before we upgraded our development process, so the code is a bit cluttered.

The JTAG interface on ESP32 uses GPIO pins 12, 13, 14, and 15 for debugging, some of which are already in use on the Ringo. If youā€™d like to use a JTAG debugger, youā€™d need to desolder those pins on the brain board, solder them onto your debugger, and also change the code so those pins arenā€™t used anywhere.

Hope this info helps,
Filip

#3

Hi @filipCM,
thanks, Iā€™ll do that!

#4

Hi again!

Iā€™ve received an Esp-prog and and considering desoldering the pins 12ā€¦15 from the brain board and modifying the firmware to disable them.

Looking at the provided schematics, it seems 12,13,14 and 15 would be used by Tft, led, clock and i2c-sda (keyboard, I guess).

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Am I going at this correctly, and would you have some tips on locating the right references in the firmware code? Iā€™ve only found references to these pins in gpio.h and fastpin_esp32.h, but not in the Ringo firmware itself. Can I safely skip modifying the firmware? Not worried about kernel panics, I just donā€™t want to fry the phone. :smiley:

1 Like
#5

Hi @Jann_H,

Thank you for your comment.

Iā€™ll forward this to @filipCM, and heā€™ll get back with a reply in a few days! :slight_smile:

Thank you for your patience! :slight_smile:

Sincerely,
Monika

#6

Hi @Monika_Tomljanovic & @filipCM , and insights into this?

Br, J

#7

Hi Jann,

We didnā€™t use ESP-prog for debugging the firmware and cannot assist you with setting it up at this time.

If you manage to make progress on this, please tell us.

Thank you

#8

Hi and thanks for your response. I understand. Could you tell me what the exact make and model of the brain board is, so I could get another copy to work on with the debugging? Is it some version of of the WeMos Lolin32 or totally custom?

#9

Hi, itā€™s our custom board