Arduino for STM32

Hi,
Currently I'm not aware of a port.
Maybe this one for teensy could be a good starting point:
https://github.com/PaulStoffregen/RadioHead

I could hep on this.
Give me some hints on how you think to integrate it.

Regarding the key, does it (IDE) have a rule to convert that into a folder path? The IDE check in the JSON the dependencies tools name and version which are used for the path of a dedicated core. If you have installed the STM32 core with xpack gcc 9 then maybe it would works using the same syntax. ...

Yes, I have HSE. Even two of them: No you have only one HSE. The other is the LSE ;) "You can try to set it at sketch level." if I know how I would do it :) A small example would help me. extern "C" void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {}; RCC_C...

The SAMD core use this version: compiler.path={runtime.tools.arm-none-eabi-gcc-7-2017q4.path}/bin/ See: https://github.com/arduino/ArduinoCore-samd/blob/master/platform.txt#L34 The one using the xpack-arm-none-eabi-gcc-9.2.1-1.1 is from the STM32 core version 1.8.0 : compiler.path={runtime.tools.xpa...

Welcome back arpruss,
Nice presentation and project

OK, I think I found the issue. The variant you used is for this board: https://stm32-base.org/boards/STM32F103RET6-Generic-Board Firstly, do you have an HSE ? The SystemClock_Config(void) use the HSE as clock source. I guess you have one as it works. Now, I saw the ADC clock is not configured while ...

Ok sorry though you use a RE. So for the RB, use the Generic F103RBT6 (Blue Button) then PA3 will work. It is not the same ADCx instance between RB and RE. But the RB has no DAC. I don't know what you exactly done with PIO. First use the Arduino IDE with the core installed properly then use the corr...

FYI,
is not required.

For PIO usage, I could not help as I do not use it.

For PA3 analogRead, I have no clue as it should works like for other. Maybe an issue on your hardware?

Nice to see you all again and welcome
sorry again for this long wait