Adding an external flash memory "MX25R6435F" to my arduino nano 33 ble board

[gizgiz]

I want to use the external flash memory MX25R6435F to run my code which has a big size on my arduino nano 33 ble but I'am a newbie and I don't find supports that can help me,

Is that possible and should I add some configuration ?

[Vidar Berg]

Hello,

I don't see any external memory ICs on in the schematics: https://docs.rs-online.com/9208/A700000006519068.pdf. Have you connected it via the pin headers?

Best regards,

Vidar 

[gizgiz]

Yes I want to use the pin headers to use the external flash memory MX25R6435F

[Vidar Berg]

If you have already connected the flash IC to your board, then the next step I would suggest is to try the JEDEC SPI-NOR Sample to verify if you are able to interface with the chip (if the connections are good, etc).

Below is a devicetree overlay you can use to add support for the macronix flash (can be placed in /spi_flash/boards along with the other board specific config/overlay files).

arduino_nano_33_ble.overlay

And config file to enable the QSPI driver:

arduino_nano_33_ble.conf

[gizgiz]

Thank you for your answer, but I want to use "nRF5" vs code or Segger without zephyr, is that possible?

[Vidar Berg]

Yes, you can try the QSPI Example from nRF5 SDK 17.1.0 instead then.