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STM32F0 Analog Input

Question asked by Elzaar on Feb 20, 2013
Hello, i only got one question: is it possible to connect one external analog input (PA3) to the COMP2 which is used as OPAMP and then use the Output (PA2) directly as input for the ADC and the COMP1?


i need to amplify an analog signal maybe by 5 or 10 and use the new signal for two things:
1. i need to know the value, so i need to connect an input to the ADC
2. i need a fast over voltage protection, so i wont to use COMP1 (DAC -> COMP+, Input -> COMP-, Output used as IRQ) 

Image
[IMG]http://i47.tinypic.com/a9rc00.png[/IMG]

As far as i know the Gree Connection is not posible, but the red?




                                                   
                                                   

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