HID will not work if STM32FreeRTOS.h is included.

[ogatatsu]

env: Arduino 1.8.9 + Arduino_Core_STM32 + RobotDyn STM32 MINI
code:

// It does not work if there is this line.
// #include <STM32FreeRTOS.h>
#include "Keyboard.h"

void setup()
{
  Keyboard.begin();
  delay(1000);
  Keyboard.print("test");
  while (1);
}

void loop()
{
}

[fpistm]

Hi @ogatatsu
I will check that.

[fpistm]

Hi @ogatatsu
It is linked to the heap management using newlib.
Using the configMEMMANG_HEAP_NB 3 and it works.
https://github.com/stm32duino/STM32FreeRTOS/blob/master/src/FreeRTOSConfig_Default.h#L92
Unfortunately, I will not be able to help on this, it was provided as several user request it.
Anyway, it's up to end user to configure properly its usage.

[ogatatsu]

Thank you very much. I was able to work it.

[Yannick-Marietti]

Hello

Thank you very much for this reporting !

I had similar issues, I applied configMEMMANG_HEAP_NB 3 correction following your comments, and everything works fine now.

To be more precise, newlib had adverse effects on Arduino Interrupts (not working) and also on the initialization code of the SPBTLE-RF module on the Discovery IoT Node board.