Custom OTA

Wish Pool
1

I’ve reviewed the document peripheral_with_ota example description and SDK DFU integration - SiFli SDK Programming Guide, but it only covers BLE OTA.

I want to implement a custom OTA solution with product encryption (my firmware should not be able to be flashed onto other products):

  1. Implement firmware transfer via USB (using the UART demo’s transfer protocol)
  2. Can I simply copy the data to a fixed location? Is there any relevant documentation available?
  3. There is an ota_uart demo, but no PC-side transfer protocol or PC tool is provided.
  4. I don’t seem to find any information about key generation. Does this mean any generated OTA firmware can be flashed onto any chip?
2

Do you want to implement OTA via serial port or USB?

3

Yes, it would be best to document the OTA process. I’ve seen others asking about it, but there hasn’t been a reply or any action taken yet.

4

Yes. Are there corresponding documentation and a demo?