Hello, I would need to customize adc clock divider and sampling rate parameters and, as written in the official wiki, this should be done creating a “special” file named build_opt.h and putting there something like this: -DADC_CLOCK_DIV=ADC_CLOCK_DIV_4 -DADC_SAMPLETIME=ADC_SAMPLETIME_3CYCLES Inf…

The Arduino build system simply reads extra GCC option flags from this file and substitutes them in. See stm32duino/Arduino_Core_STM32/blob/70d7b47717210dfe4a04670fa5c77eac8b65539c/platform.txt#L91-L94 # Pre and post build hooks build.opt.name=build_opt.h …

PlatformIO Community

How to use stm32duino (official STM32 core) build_opt.h in PlatformIO?

Alteregoxxx December 16, 2019, 8:19am 3

Thank you @maxgerhardt, I already use build_flags for other definitions, I was not sure it could work also for this case, still, it did work a charm, thank you!

1 Like