F303 OP AMP related inquiry

[JLee.37]

I want to control the OP AMP using F303. I opened all OP AMPs and received ADC values ​​in the form of Follower, but OP AMP4 does not work. What's the problem?

[Amel NASRI]

Hi @JLee.37​ ,

• Does OPAMP4 work as standalone (when other OPAMPs are not used)?
• Based on RM0316, used pin for OPAMP output to ADC input is PB12. Is it configured properly?

-Amel