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Update Firmware over Virtual USB

LMorr.3
Senior II

‎2024-08-26 11:42 AM - edited ‎2024-08-26 01:12 PM

Hello,

I am using the STM32F373's virtual USB port successfully.  I can connect and send packets to the uC from a web browser.  I now want to allow the user to update the firmware from the web browser by uploading a file, instead of the traditional method involving the ST flash software.  

It would need to happen via WebSerial API so over the USB virtual port.  What is the best way to accomplish this?  Is there an appnote I should look at?  I'm looking at AN2606 [bootloader] and AN3156 [DFU] and AN3156 now.

Thank you,

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BarryWhit
Senior III

‎2024-08-26 03:17 PM - edited ‎2024-08-26 03:17 PM

I can't recall ever coming across the notion of "Virtual USB port" before. Can you explain what you mean? Perhaps you meant "Virtual COM port" aka VCP, instead?

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