Query Regarding MT29F4G01ABAFDWB(NAND FLASH) interfacing with QSPI on nrf52840DK.

[AbhaySingh]

Hello folks, 

I was planning to interface MT29F4G01ABAFDWB Flash through QSPI peripheral with nrf52840 soc. 

But before that, i tried to find some resource and i came across a thread in which they said MT29F4G01 cannot be interface with QSPI peripheral.

Below is the link to the thread.

https://devzone.nordicsemi.com/f/nordic-q-a/29156/nrf52840-usb-msc/115869#115869

Link to MT29F4G01ABAFDWB Datasheet.

https://in.micron.com/products/nand-flash/serial-nand/part-catalog/mt29f4g01abafdwb-it

Will someone clarify this for me.

Thank and Regards, 

Abhay Singh

[Simonr]

Hi

The QSPI peripheral does not support Execute in place (XIP) or EasyDMA functions on a NAND, but it may be possible using custom instructions. Custom instructions takes away most benefits with using QSPI though, as they're only transmitting over 1 line at a time, so any NAND flash is not well suited to interface with our QSPI peripheral.

The features of our QSPI is best suited for a NOR flash either way, as it focuses on doing XIP (letting the CPU execute program code directly from the external flash).

Best regards,

Simon

[AbhaySingh]

Thanks for reply Simonr, 

• Did this means, I can try interfacing MT29F4G01ABAFDWB with QSPI but it's not preferable to do, Am I right ?

[Simonr]

Correct, you are free to try interfacing to it by using custom instructions, but there's no guarantee it will work, and we recommend using a NOR flash device instead.

Best regards,

Simon