Arduino Nano 33 IOT 'west flash' failure


Sunanda Roy <sroy9@...>
 

Hello,

While trying to execute a simple test program (samples/hello_world) on Arduino Nano 33 IOT (target) using Zephyr RTOS. I followed all installation steps and when I run the 'west flash' command in bootloader mode, I got this error: No device found on /dev/ttyACM0 (serial port).

After some online study, I find that I need to change permissions of serial port to 666 before every flash. Now when I follow the steps at (https://docs.zephyrproject.org/latest/boards/arm/arduino_nano_33_iot/doc/index.html), I get the below error:
-- west flash: using runner bossac

SAM-BA operation failed

On the contrary, when I do NOT open the minicom terminal (in a separate window), I am able to flash successfully.

This allows me to successfully flash and verify sample programs which do not require any serial output (ex. samples/basic/blinky). But I am not able to see any output for sample programs like (samples/drivers/crypto) after a successful flash.

Please provide your suggestions to see the output of these sample programs on my desktop machine running Ubuntu 20.04.2 LTS.


Thanks,
Sunanda


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