How to use external mcu "esp32" pwm to drive motor with B-G431B- ES1

[A1bucker]

I know pin pa15 is the pwm input physically but it does not activate when building a motor profile or when building the program with stm32cube​MX. I tried manually without luck.

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verified with an oscilloscope that I am giving pa15 a proper pwm and frequency.

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[A1bucker]

So if anyone can help? Can I just pick pa15 in stm32cubeMX and call it an input, similar to arduino and write st version of analog.read(); ?​