Arduino for STM32

When you use deep sleep interrupt are disabled. You have to use the RTC to be able to wait the desired time. Check the API you will see that you can pass delay as argument.

I've completed my answer in the other thread. As you mentioned that you get "No probe detected" I've simply comment that the upload method you choose required an STLink. Anyway you can use other upload method, DFU, Bootloader,... in the submenu of the STM32 core. If you want use Roger's co...

fpiSTM wrote: ↑Mon Sep 20, 2021 12:03 pm Bluepill required to have an external STLink

I have to complete my answer:
to use th SWD upload method. Else you cans use other method like DFU or other bootloader method

You should avoid to open several topics around the same thing.
The IWatchdog library provide an example for the STM32 core.

Bluepill required to have an external STLink

See the WiKi:
https://github.com/stm32duino/wiki/wiki ... wareserial

First you should tell us which core you used.
viewtopic.php?f=2&t=301


The STM32 core provide the IWatchDog library:
https://github.com/stm32duino/Arduino_C ... /IWatchdog

STM32_Newbbe wrote: ↑Thu Sep 16, 2021 9:36 am ok, did I get this right that I "just" have to configure USB CDC in the Arduino IDE and then I can get VCP support?

that would be pretty straight forward

yes

This part have been reviewed to use register instead of serie name when possible:
https://github.com/stm32duino/Arduino_C ... /pull/1435

Thanks.
About ADC sampling it can be redefined using the build_opt.h:

https://github.com/stm32duino/Arduino_C ... pp#L33-L47

Simply defined ADC_SAMPLINGTIME with the value you want