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DFU over QSPI

Hi,

Has anyone attempted to first transfer the entire image package to the external flash over BLE and then use a background DFU library to transfer from the external flash filesystem to internal flash and update?

I intend to do this as in my target application BLE connection could be intermittent and I'd like to download the image package completely before attempting DFU. This will also help in encryption/decryption.

Any suggestions/pointers?

Thanks and warm regards,

Ananth

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