Arduino mbed thread issue on Arduino Nicla

Development Platforms
1

Good morning.

The upload of example codes to the Nicla board triggers a HardFault from the Arduino mBed OS. If these codes are tried in the Arduino IDE, they work fine. Below is the simplest code I have tried that triggers this fault (the example code of the Nicla System including Serial):

#include "Nicla_System.h"

void setup() {
  Serial.begin(115200);
  while(!Serial);
  
  nicla::begin();
  nicla::leds.begin();
}

void loop() {
  nicla::leds.setColor(green);
  delay(1000);
  nicla::leds.setColor(off);
  delay(1000);
}

This is my platformio.ini file, a default one:

[env:nicla_sense_me]
platform = nordicnrf52
board = nicla_sense_me
framework = arduino
monitor_speed=115200
debug_tool = cmsis-dap
upload_protocol = cmsis-dap

After using the debugger, I believe I have located the fault: nicla::begin(); tries to create a thread for one of the i2c ports:

static rtos::Thread th(osPriorityHigh, 1024, nullptr, "ping_thread"); th.start(&nicla::pingI2CThd);

But the thread constructor is not defined and a null pointer is returned (which causes the HardFault when calling th.start() function.

Could someone help me with this?

2

Does this appear with the Arduino IDE too when you install the latest stable version of the GitHub - arduino/ArduinoCore-mbed core? If yes → issue at this repository please since the code is there.

3

Yes, it does (with the latest stable version). Thank you very much, I have just posted it where you have told me.

Thank you very much for your consideration.