How to increase the rate of sQSPI to 32MHz

RE: How to increase the rate of sQSPI to 32MHz

Kazi Afroza Sultana — Mon, 15 Sep 2025 15:21:10 GMT

Hello Leo,

I have tried on NCS v3.1.0 and got 32Mhz on logic analyzer.

Try this one again.

devzone.nordicsemi.com/.../0724.spi_5F00_flash.zip

RE: How to increase the rate of sQSPI to 32MHz

Leo Mo — Fri, 12 Sep 2025 02:09:21 GMT

Hi Kazi,

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

RE: How to increase the rate of sQSPI to 32MHz

Kazi Afroza Sultana — Thu, 11 Sep 2025 18:42:51 GMT

devzone.nordicsemi.com/.../7367.spi_5F00_flash.zip

This is the project file.

RE: How to increase the rate of sQSPI to 32MHz

Leo Mo — Thu, 11 Sep 2025 08:07:41 GMT

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?

RE: How to increase the rate of sQSPI to 32MHz

Kazi Afroza Sultana — Tue, 09 Sep 2025 13:59:07 GMT

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).

RE: How to increase the rate of sQSPI to 32MHz

Leo Mo — Mon, 08 Sep 2025 08:50:01 GMT

Hi Kazi,

I have recovered NRF54L15, but SQSPI still can not run on 32MHz!

RE: How to increase the rate of sQSPI to 32MHz

Kazi Afroza Sultana — Thu, 28 Aug 2025 13:19:52 GMT

Hello Leo,

I have run your sample for both output and it looks ok here. Can you try to power cycle the device and recover by nrfutil device recover command and run the sample again?

RE: How to increase the rate of sQSPI to 32MHz

Leo Mo — Fri, 22 Aug 2025 05:14:49 GMT

I'm using another board (PCA10156, 0.9.3, 2025.19, 1057791145).

Based on nRF Connect SDK Toolchain v3.0.2.

Test failed.

RE: How to increase the rate of sQSPI to 32MHz

Amanda Hsieh — Thu, 07 Aug 2025 19:13:06 GMT

Hi,

Kazi is out of the office, so I take this case.

I cannot reproduce the issue with your uploaded project either.

-Amanda H.

RE: How to increase the rate of sQSPI to 32MHz

Leo Mo — Tue, 29 Jul 2025 02:14:45 GMT

I am using:

PCA10156

0.9.3

2025.19

1057765593

RE: How to increase the rate of sQSPI to 32MHz

Kazi Afroza Sultana — Fri, 25 Jul 2025 13:41:07 GMT

Hello,

PCA10156

0.9.3

2025.12

1057758310

RE: How to increase the rate of sQSPI to 32MHz

Leo Mo — Tue, 22 Jul 2025 06:27:33 GMT

What hardware version you are using?

RE: How to increase the rate of sQSPI to 32MHz

Kazi Afroza Sultana — Fri, 18 Jul 2025 16:11:12 GMT

Hello,

I tried with both overlay ( cpuapp, cpuapp_sqspi) with 32MHz, for both I got the following output

RE: How to increase the rate of sQSPI to 32MHz

Leo Mo — Wed, 02 Jul 2025 05:10:01 GMT

Hi,

I'm using this sample.

It works fine when there is no change rate.

It cannot be used when the frequency is increased to 32MHz.

There is a zipped file here.

devzone.nordicsemi.com/.../1070.spi_5F00_flash.zip

RE: How to increase the rate of sQSPI to 32MHz

Kazi Afroza Sultana — Tue, 01 Jul 2025 16:10:15 GMT

Hello,

I tried the default sample on nRF54l15DK with your attached overlay files. The log shows ok.

Changing the frequency to 8 Mhz in overlay (cpuapp.ovrlay) file shows the following output

same output when I changed the frequency to 32 MHz for both overlays.

Can you please send me the whole project in a zipped file?

RE: How to increase the rate of sQSPI to 32MHz

Leo Mo — Fri, 27 Jun 2025 05:14:43 GMT

Hi Kazi,

Thank you!

In Ultra Low Power Mode, I found the clock frequency max value is 8 MHz.

Now I set it to "High Performance Mode", but it still doesn't work.

&sqspi {
	mx25r64: mx25r6435f@0 {
		compatible = "mxicy,mx25r", "jedec,mspi-nor";
		status = "okay";
		reg = <0>;
		jedec-id = [c2 28 17];
		quad-enable-requirements = "S1B6";
		sfdp-bfp = [
			e5 20 f1 ff  ff ff ff 03  44 eb 08 6b  08 3b 04 bb
			ee ff ff ff  ff ff 00 ff  ff ff 00 ff  0c 20 0f 52
			10 d8 00 ff  23 72 f5 00  82 ed 04 cc  44 83 68 44
			30 b0 30 b0  f7 c4 d5 5c  00 be 29 ff  f0 d0 ff ff
		];
		size = <67108864>;
		has-dpd;
		t-enter-dpd = <10000>;
		t-exit-dpd = <35000>;
		t-reset-pulse = <10000>;
		t-reset-recovery = <35000>;
		mxicy,mx25r-power-mode = "high-performance";
		mspi-max-frequency = <DT_FREQ_M(32)>;
		mspi-io-mode = "MSPI_IO_MODE_QUAD_1_4_4";
		mspi-data-rate = "MSPI_DATA_RATE_SINGLE";
		mspi-hardware-ce-num = <1>;
		mspi-cpp-mode = "MSPI_CPP_MODE_0";
		mspi-endian = "MSPI_BIG_ENDIAN";
		mspi-ce-polarity = "MSPI_CE_ACTIVE_LOW";
		
	};
};

Log:

[00:00:00.003,461] <err> flash_mspi_nor: config[0] 0 =? 0
[00:00:00.003,604] <err> flash_mspi_nor: config[1] 0 =? 2
[00:00:00.003,736] <err> flash_mspi_nor: Failed to change IO mode: -5

What else do I need?

Kazi Afroza Sultana

RE: How to increase the rate of sQSPI to 32MHz

Leo Mo — Thu, 26 Jun 2025 09:56:08 GMT

Hi Kazi,

Thank you!

I'm look forward your reply.

RE: How to increase the rate of sQSPI to 32MHz

Kazi Afroza Sultana — Wed, 25 Jun 2025 05:37:21 GMT

Hello,

Based on the error messages you're seeing, there appears to be an issue with the IO mode configuration when trying to use the higher frequency with your MX25R64 flash.

Does the MX25R64 flash chip actually supports 32 MHz operation in the IO mode you've configured. Some flash chips have different maximum frequencies for different IO modes. You can check this.

I will try to reproduce the issue on my side with the overlay file you uploaded here. I will get back to you soon.