I am testing a Muon v0.5 board with an M404 M-Som. I am having stability issues with the Muon randomly locking up. I implemented the capturing of the system reset codes. When I press the reset button on the board, I would expect to get a reset reason code RESET_REASON_PIN_RESET: Reset button or reset pin (20) but what I get is RESET_REASON_POWER_DOWN: Power-down reset (40). I don't understand why.
When the reset button is used on RTL872x devices (including the Muon, M-SoM, P2, and Photon 2), the reset reason cannot be reliably saved, so the reset reason will often be power down (the default) instead of pin reset because it could not be saved.
Thanks Rick for the explanation. I will move on with that knowledge.
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