Process to create OTA file doesn't work

[yann-l]

The mentioned process to create OTA file doesn't work:

1. Get the generated bin file.
2. Run the following command:

   lzss.py : ./lzss.py --encode Blink.ino.bin Blink.ino.lzss
   

3. Modify the bin2ota that still doesn't support C33 by adding its magic number:

   elif board == "PORTENTA_C33":
     magic_number = 0x23410068.to_bytes(4,byteorder='little')
   

4. Run the following command to generate the OTA file:

   ./bin2ota.py PORTENTA_C33 Blink.ino.lzss Blink.ino.ota
   

But the OTA file doesn't work.

The one that is in the "UpdateFromFile" example sketch (update.h converted to an OTA file) works correctly. How was it generated?

Additional context

When I test the Blink example it works.

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I am using Arduino IDE 2.3.4 and Arduino Renesas Portenta Boards 1.3.1.

[pennam]

Hi @yann-l I've tried to rebuild the OTAUsage.ino example with the new core and following your steps. In my case UpdateFromFile example is working as expected.

I attach the xxd dump ehre for reference

update.h.zip

Also opened this PR arduino-libraries/ArduinoIoTCloud#519 to add C33 to bin2ota.py

[yann-l]

Ok I found what I was doing wrong: I neede to include "SFU.h" to make my sketch "otable".
Thanks for your comment and the bin2ota PR