Check if power source is already configured on STM32H7 #428
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If the power source is already configured, writing on the register can cause a deadlock if the configuration does not match, which can be tricky to fix. This is the check that is done in the STM32 HAL library to avoid this.
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Hi @opkaizen, thanks for spotting this. Could you please get in touch with [email protected] to set up a contributor agreement? |
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hi @opkaizen did you get in touch with us yet regarding the CA? |
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Hi, not yet, I will soon :) |
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The CA process did not go through. See zd17861. |
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If the power source is already configured, writing on the register can cause a deadlock if the configuration does not match, which can be tricky to fix. This is the check that is done in the STM32 HAL library to avoid this.
I got this issue because the STM32H757 demo board and the STM32H745XI discovery board use the SMPS, and even though the power on reset configuration is LDO|SMPS, writing on LDO deadlocked my boards.