If you have gone through the schematic section in the manual, there you can see that it's an EX_ADC and apart from that there are already two internal ADCs inside the MCU so clearly it's an external ADC that I need to use. So tell me the procedure of...

yes that's it , so what's the procedure to get the value from that ADC? And its pin is PA5

its a external ADC which is within the board.

I have done the pin configuration for external ADC and selected PA10 for GPIO output and written a code for it but not able to get a good value of ADC and also don't know where to check the output ADC value.Also I have connected the external ADC thro...