Custom Firmware for Nano 33 IoT NINA Module

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1

Dear All,

Is it possible to upload custom firmware onto the NINA module of the Nano 33 IoT?
More specifically, I want to program both MCUs (SAMD and NINA) and have them run their own specific programs in parallel (with respect to eachother).
For example, NINA runs a server and handles network related messaging and status updates;
the SAMD reads and controls peripherals (LEDs, buttons, displays, etc.).
For certain events the two MCUs communicate over a (bi-)directional link.

If this is possible, how can I upload the custom firmware onto the NINA?

Thank you in advance for the replies.

2

I haven't actually tried this myself, but there is some good information about it in this thread:
https://forum.arduino.cc/?topic=654631
Make sure to read through it because it evolves over the course of the discussion (I believe Juraj provided some nice input).

3

you can flash NINA over the SAMD with SerialNINAPassthrough.ino sketch of WifiNINA library

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