Wrong bits, stm32F303re code generation.
CubeMX 5.1.0, stm32F303re, OPAMP4 dropdown box Follower-DAC_OUT1_INP. Code section: hopamp4.Init.NonInvertingInput = OPAMP_NONINVERTINGINPUT_IO3; is not correct, should be: hopamp4.Init.NonInvertingInput = OPAMP_NONINVERTINGINPUT_IO2;reference to ...