Arduino for STM32

@Jimbo1326 yes. Latest version 2.3.4

There must something with your PC or windows setup.
I have bit faster PC (Ryzen 5 5500 with nvme SSD) and it takes about 30 seconds to do first compile and 7s to recompile.

"Bouar part number" it's just to automate some hardware setups like clocks (if board has external oscillator or uses internal), default pins (like buttons, LEDs, default SPI, IIC, etc).
"Generic" variants always use internal oscillator and usually do not have buttons and LEDs defined. So it will ...

You can debug directly in Arduino IDE.

So I put the 64Gb SD card in the board again and sd.begin returns false.
Hence it seems that the STM32SD library does not support 64Gb cards .
Thanks for all your help IMK.


I've looked through STM32SD and ported FatFS code and there is support for exFAT (used for >= 64GB cards), but it might ...

"core" is a arduino addon that supports MCUs.
For STM MCUs there are 3 cores: official STM (made by STM), Maple (LibMaple) (it's old and supports only few MCUs) and Steve's core (formerly Roger's Clark core), it's an extension of Maple core with more features and supports more MCUs.

Maple is just a ...

To change pins you just put an array with pin setup in your sketch. Copy one from PheripheralPins.h, paste it in your sketch, remove "WEAK", edit pin setup.

Same thing with clock setup. Just copy and paste SystemClock_Config(void) from generic_clock.c, remove "WEAK", edit.

1. this is a subforum for STM8

2. GPIOB_BASE is not a pointer. It's a address value, that's why you get this error.
GPIOx are pointers to each GPIO registers.
eg: GPIOA->IDR

You can use HAL libraries (like in CubeIDE) in stm32duino, so you can use all the adc code from cubeIDE in arduinoIDE just with some modifications.
You don't need to edit generic_clock.c or PeripheralPins.c, you can put your clock config and changed pin maps in your sketch.

As to current draw, it ...

That's not a board package, like stm32duino.
And you don't have to install it separately. It's installed with stm32duino.