nrf5340 - Multi QSPI Flash chip models.

RE: nrf5340 - Multi QSPI Flash chip models.

Gabriele — Thu, 11 Sep 2025 09:57:07 GMT

The problem can be solved by patching the flash driver (nrf_qspi_nor.c) by testing different JEDEC IDs and then configuring the device for the correct one. The array of allowed JEDEC IDs can be managed as a new parameter in the dts configurator.

RE: nrf5340 - Multi QSPI Flash chip models.

Kenneth — Thu, 14 Aug 2025 10:56:54 GMT

Sorry no.

Kenneth

RE: nrf5340 - Multi QSPI Flash chip models.

Gabriele — Thu, 14 Aug 2025 10:10:45 GMT

I see. Would it be possible to address the problem by linking the flash model selection to the logic state of a GPIO input at boot time?

RE: nrf5340 - Multi QSPI Flash chip models.

Kenneth — Thu, 14 Aug 2025 09:24:00 GMT

I am sorry to say, but zephyr and devicetree is very static in this sense, so I am not aware of any way you can dynamically detect and choose which external flash you can use run-time.

Kenneth

RE: nrf5340 - Multi QSPI Flash chip models.

Gabriele — Thu, 14 Aug 2025 06:33:50 GMT

Hi Kenneth, could you please elaborate a bit more on your answer ?

RE: nrf5340 - Multi QSPI Flash chip models.

Kenneth — Wed, 13 Aug 2025 19:02:48 GMT

Hi again,

[quote user=""]At runtime, the firmware should be able to detect which flash is present (for example, by reading the JEDEC ID) and use the appropriate device.[/quote]

After reading your case again and the above requirement, I am sorry to say but it's not possible to do what you request.

Kenneth

RE: nrf5340 - Multi QSPI Flash chip models.

Kenneth — Tue, 12 Aug 2025 11:57:02 GMT

Hi,

Key person is out of office this week, we will look into this next week.

Sorry for the delay,
Kenneth