UMS in NAND flash

Technical Support
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1

Good morning Toradex team,

I was looking for an alternative for using the UMS function from Uboot in the iMX7D 512MB (NAND + UBI SKU board). For eMMC boards ums 0 mmc 0 works perfectly and I was looking for something similar in NAND flash boards.

Thanks and best regards,
Alvaro.

2

Unfortunately, USB mass storage emulation is not possible on top of raw NAND flash. Alternatively, you may use device firmware upgrade aka DFU. To sucessfully use it you also need a peer implementation e.g. dfu-util. Unfortunately, I believe we currently don’t have any specific documentation about DFU on our developer website.

3

Thanks Marcel, I’ll give DFU a try and share any update.