How to increase the rate of sQSPI to 32MHz

[Leo Mo]

SDK: nRF Connect SDK v3.0.2

DK: nRF54L15-DK

Sample: spi_flash

3513.nrf54l15dk_nrf54l15_cpuapp_sqspi.overlay
8304.nrf54l15dk_nrf54l15_cpuapp.overlay

default: 

mspi-max-frequency = <DT_FREQ_M(8)>;

If I change it to 32, it will printf these log:

[00:00:00.003,384] <err> flash_mspi_nor: Failed to change IO mode: -5

[00:00:00.010,584] <err> flash_mspi_nor: Failed to switch to default io mode: -5

[Kazi Afroza Sultana]

Hello Leo,

I am not sure why you are not getting it work with 32M. 

I have not done any change, just have changed he frequency 

It works here. I run the prorgam from command prompt using west build command. 

I have some idea what you can do:

power-cycling and fully erasing the external flash.

You can try to erase external memory erase by this command

nrfutil device program --firmware zephyr.hex --options ext_mem_erase_mode=ERASE_ALL --serial-number 1050065027

inside the build folder ( for example : in my case C:\ncs\v3.0.2\nrf\samples\zephyr\drivers\spi_flash\build\spi_flash\zephyr). 

[Leo Mo]

Hi Kazi,

I just tried, but it still doesn't work.

E:\mmi\nrf_apps\sdk_v3.0.2\spi_flash\build\spi_flash\zephyr> nrfutil device program --firmware zephyr.hex --options ext_mem_erase_mode=ERASE_ALL --serial-number 1057791145
[00:02:32] ###### 100% [3/3 1057791145] Programmed

Can you upload your project and hex file?

[Kazi Afroza Sultana]

7367.spi_flash.zip

This is the project file. 

[Leo Mo]

Hi Kazi,

I used the hex file you uploaded, and the measured clock frequency is 8MHz. Can you measure it on your side?