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@ramamurth wrote:
on custom board
You'll need to give details of that board - schematics, layout, etc.
Some good, clear photos may also help.
Do other things on the board work OK?
Before moving to a custom board, did you prove your code on a known-good board; eg, ST board?
A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.
