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NRF52840 USB MSC

bryanhsieh

Hi Everyone,

I am developing a device that needs to record data from ADC onto a onboard NAND memory. Following the USB MSC example for NRF52840, it seems like the device is emulating as the flash drive with the onboard macronix external memory. However the example only seems to work for NOR devices as shown by this post.

devzone.nordicsemi.com/.../

So my questions are as follows;

  1. There seems to be an internal flash translation layer for NOR devices, if I want to use FTFS with NAND devices do I need to write my on FTL or does nordic/keil have a dedicated FTL for NAND devices also.

2)In the USB MSC example, QSPI is used, if I use SPIM to talk the the NAND device can I still emulate it as a USB mass storage provided that I first put FTFS on it?

Thanks for the help

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