Regarding the invocation of the built-in operational amplifier of STM32G4

[CJT1111]

Hello, I would like to know how to call the built-in operational amplifier of STM32G4 in the ArduinoIDE software

[fpistm]

Hi @CJT1111
No default support provided in the core.
Anyway you can call directly the HAL to configure and use it.
If you need the ADC and/or the DAC, you can disabled the Arduino part as described here:
https://github.com/stm32duino/Arduino_Core_STM32/wiki/HAL-configuration#hal-module-only
by defining
HAL_ADC_MODULE_ONLY
HAL_DAC_MODULE_ONLY