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cnlohr avatar cnlohr commented on May 22, 2024 1

Two thoughts:

  1. I have seen situations where the whole-chip erase was unsuccessful - can you try minichlink -ua If that works, let me know and I can make that default behavior.
  2. Can you hook it up to a logic analyzer?

from ch32v003fun.

dwillmore avatar dwillmore commented on May 22, 2024

Have you tried using the "-u" option of minichlink? You need to let the programmer control power to the target if you aren't already.

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phantomxe avatar phantomxe commented on May 22, 2024

I added power control circuit with pair of mosfets to GPIO11 and tried minichlink -u again.

Found ESP32S2 Programmer
Entering Unbrick Mode
Connection starting
/0/ffffffff
/0/ffffffff
/0/ffffffff
/0/ffffffff
/0/ffffffff
/0/ffffffff
/0/004c0c82
Flash unlocked
Whole-chip erase
Whole Chip Erase Code: 0

Seems to work. But when i try to program, it's not working.

Found ESP32S2 Programmer
Error: Setup chip failed. Got code ffffffff
Could not setup interface.

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phantomxe avatar phantomxe commented on May 22, 2024

minichlink -ua worked! I can reprogram chip without any issues now.

waveform2

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