Use of multiple analog functions of same pin possible?

[benjamin2]

Posted on September 10, 2013 at 15:32

Hello guys!

I wonder if it is possible to use more than one additional function if the pin is configured as an analog input. I can not find any detail in the datasheet or reference manual that denies or allows this kind of usage especially.

For instance (see attachment): Is it possible to use PA1 as input for COMP1 and OPAMP1 on the STM32F302RC at the same time?

https://my.st.com//public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Attachments/33802/Multipin.png

Thanks for your help.

Greetings,

Benny

#multiple-pin #multiply-functions

[Amel NASRI]

Posted on October 10, 2013 at 18:35

Hi Benny,

There should be no issue to use the same pin as analog input for more than one peripheral.

In such case, the same input signal will be used for both OPAMP1 and COMP1 for example.

-Mayla-