Arduino for STM32

Thanks @mlundin

Fixed thanks https://github.com/stm32duino/Arduino_C ... /pull/1246

A simple search on the GitHub repo:
For STM32F1, I guess you have to include tone.h in your sketch:
https://github.com/rogerclarkmelbourne/ ... ple/tone.h

Not found for STM32F4. @stevestrong could confirm.

This is an example, probably that the formula and value used are not correct for G0. Check the datasheet to customize.

Thanks for feedback.

You canno't use Serial at this time as instantiation is done before the sytem init (hal init, clock config) and also Serial1 can simply not be instantiate at this time and also not configureed by the Serial.begin()...

You can try to use the HSE by pass on the nucleo F7.
Simply add the new configuration generated thanks CubeMx on top of your sketch:

Also, your OP is about F411? why talking about F7 ?
For the system core clock config you can redefine your one in the sketch.

You could not compare mbed and Arduino. They are really different and does not have the same goal and behaviour. MBED is an OS not the STM32 core. ;) I guess one of your issue is simply the usage of the Serial. Serial uses IT with a priority of 1 while EXTI uses a priority of 6 per default. So your ...

Which board you used ? Is there an LSE ?

Could you share your library ?

I don't know which library you used any you cannot use new at global.
For the second, I gues the constructor execute some code that's probably why it's failed.

Try to define global the CommandHandler* commandHandler;
then do the new in the setup().