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Associate
July 29, 2026
Question

Why ADC2_INP12 can't be selected as ADC input for STM32 MP257

  • July 29, 2026
  • 1 reply
  • 56 views

Hello

STM32 MP257 lists pin PC3 with additional function ADC_INP12 in ball definition table, the input source is also included reference manual ADC2 connection matrix. But it can’t be selected in STM32 CubeMX. It’s marked red in Pinout view for PC3 and not included in ADC Mode selection window. I don’t see an entry about ADC2_INP12 in errata document.
 

 

Any insights are welcome

Regards
Frank

1 reply

FvMAuthor
Associate
August 27, 2026

Hello,
I could verify that this is a pure CubeMX bug. ADC2INP12 input signal can be read without problems.

Regards
Frank