NUCLEO-G070RB ADC not working channels 2 to channel 5

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Title edited to reflect that this relates specifically to the NUCLEO-G070RB board.

NUCLEO-G070RB in this board ADC channel 0,1 working ,other ADC channel not working is they any reason?

Peter BENSCHBest answer

ST Technical Moderator

Welcome @Chinna651302, to the community!

If you look at the schematics of the NUCLEO_G070RB, you will see that the associated pins PA2, PA3 and P5 are already in use, but ADC_IN4 = PA4 is free and should therefore work as an ADC input. Unfortunately, no alternative pins are available for the ADC inputs, so on the NUCLEO you cannot use ADC_IN2, ADC_IN3 and ADC_IN5 without changing the components that are already connected.

Hope that helps?

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

Peter BENSCHBest answer

ST Technical Moderator

Welcome @Chinna651302, to the community!

If you look at the schematics of the NUCLEO_G070RB, you will see that the associated pins PA2, PA3 and P5 are already in use, but ADC_IN4 = PA4 is free and should therefore work as an ADC input. Unfortunately, no alternative pins are available for the ADC inputs, so on the NUCLEO you cannot use ADC_IN2, ADC_IN3 and ADC_IN5 without changing the components that are already connected.

Hope that helps?

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

C

Chinna651302Author

Associate

Hello @Peter BENSCH ,

Thank you for your prompt response. I reviewed the schematics and was able to identify the issue. I appreciate your clear explanation and valuable suggestions.

Regards,

Chinna

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