SD Card: Error mounting file System error: -134

RE: SD Card: Error mounting file System error: -134

Patrice Rudaz — Wed, 21 May 2025 14:44:20 GMT

Hi Vidar,

That was it !

Thanks for the support.
Kind Regards
Patrice

RE: SD Card: Error mounting file System error: -134

Vidar Berg — Wed, 21 May 2025 12:55:28 GMT

Hi Patrice,

Sorry, I didn't think of this earlier since it was working fine on my end, but I suspect the issue is that P1.04 through P1.07 are connected to the interface MCU on the board, which is likely interfering with the SPI transfers. You can see the pin assigments by looking at the silkscreen on the backside of the board.

Fortunately, it is possible to disconnect these lines through the board configurator. Please try that.

Kind regards,

Vidar

Log from my test

RE: SD Card: Error mounting file System error: -134

Patrice Rudaz — Tue, 20 May 2025 12:01:06 GMT

Hi Vidar,

It seems that the pins are well configured, according to the .overlay.

P1.04 : SD_SCK
P1.05 : SD_MISO
P1.07 : SD_MOSI
P1.06 : SD_nCS

&spi20 {
    status = "okay";
    compatible = "nordic,nrf-spim";
    pinctrl-0 = <&spi20_default>;
    pinctrl-1 = <&spi20_sleep>;
    pinctrl-names = "default", "sleep";
    cs-gpios = <&gpio1 6 GPIO_ACTIVE_LOW>; // P1.06 - SD_nCS
	sdhc0: sdhc@0 {
		compatible = "zephyr,sdhc-spi-slot";
		reg = <0>;
		status = "okay";
		mmc {
			compatible = "zephyr,sdmmc-disk";
			disk-name = "SD";
			status = "okay";
		};
		spi-max-frequency = <24000000>;
	};
};

&uart20 {
	status = "disabled";
};

&pinctrl {
    spi20_default: spi20_default {
        group1 {
            psels = <NRF_PSEL(SPIM_SCK,  1, 4)>,
                    <NRF_PSEL(SPIM_MOSI, 1, 7)>,
                    <NRF_PSEL(SPIM_MISO, 1, 5)>;
        };
    };

    spi20_sleep: spi20_sleep {
        group1 {
            psels = <NRF_PSEL(SPIM_SCK,  1, 4)>,
                    <NRF_PSEL(SPIM_MOSI, 1, 7)>,
                    <NRF_PSEL(SPIM_MISO, 1, 5)>;
            low-power-enable;
        };
    };
};

With the logic analyzer :

nrf54L15

nrf5340

The GPIOs seem to be correctly assigned. However, the SPI frames are not the same.

Is there anything special to do with the nRF54L15 in terms of hardware?
Or a special configuration to put in the prj.conf?

Kind Regards
Patrice

RE: SD Card: Error mounting file System error: -134

Vidar Berg — Tue, 20 May 2025 07:20:09 GMT

Hi,

I was hoping testing with my FW would help narrow down the problem. The error indicates that the SD card is not responding to the commands.

So to summarize:

1. The same SD card works with the nRF5340 DK which confirms that the card is compatible with the driver.

2. Both setups are operating at the same IO voltage level.

3. The identical firmware works on my desk.

From the board picture you posted it looks like you have changed which pins are connected to the SD card module compared to the overlay Nabil included in the initial post? Have you tried to probe the lines with a scope or logic analyzer?

RE: SD Card: Error mounting file System error: -134

Patrice Rudaz — Mon, 19 May 2025 14:28:56 GMT

Hi Vidar,

I already did, but here is the RTT output with the .hex and pinout provided:

RE: SD Card: Error mounting file System error: -134

Vidar Berg — Mon, 19 May 2025 12:21:39 GMT

Hi,

Could you please try with the .hex I uploaded earlier and with this pinout:

Best regards,

Vidar

RE: SD Card: Error mounting file System error: -134

Patrice Rudaz — Fri, 16 May 2025 13:53:56 GMT

Hi Vidar,

I'm Patrice, working at the School of Engineering of Sion, and I'm trying to support Nabil in his work dealing witn nrf54L15 and SD card...

I took the fs_sample project you provided and ran it on the nrf54L15 development board I have in the office. It's a version 0.9.2

I've checked that the nrf54l15's GPIOs are set to 3.3V. I'm having the same problems as with the hardware used by Nabil (see RTT output 54l15).
I also tested your .hex file and got the same behavior!

I then compiled the project for an nrf5340 board and everything works (cf. RTT output 5340).

For the 2 builds, I'm using the same toolchains, same external hardware and the same SD card:
- ncs 3.0.0
- ncs toolchain 3.0.1

Any ideas ?

Here is the project with the overlay and conf files:

devzone.nordicsemi.com/.../fs_5F00_sample_5F00_54l15_5F00_and_5F00_5340.zip

RE: SD Card: Error mounting file System error: -134

Vidar Berg — Thu, 08 May 2025 13:41:16 GMT

Hello,

I took a chance on using SDK v3.0.0 instead of v2.9.1 not expecting any major changes, but I see the binding was updated to include the name property between these two releases: https://github.com/zephyrproject-rtos/zephyr/commit/a1dc0b8b3e97542ca9f0c84cba37067710b61ccb. Anyway, are you able to test with the hex file I uploaded to verify the your SD card is supported?

Best regards,

Vidar

RE: SD Card: Error mounting file System error: -134

nbh — Thu, 08 May 2025 09:31:09 GMT

Hello Vidar,
After inspecting the overlay file i noticed that the disk-name property inside the mmc node is not allowed, and generates a build error

devicetree error: 'disk-name' appears in /soc/peripheral@50000000/spi@c6000/sdhc@0/mmc 
in C:/****/fs_sample/build/fs_sample/zephyr/zephyr.dts.pre, 
but is not declared in 'properties:' in C:/ncs/v2.9.1/zephyr/dts/bindings\sd\zephyr,sdmmc-disk.yaml

Just to make it clear i'm building for the nrf54l15dk/nrf54l15/cpuapp using the 2.9.1 sdk.

Also i forgot to mention in my original post that my board is reconfigured to use the NFC pins as GPIOs

(And checked with an Analog discovery tool)

Thanks

RE: SD Card: Error mounting file System error: -134

Vidar Berg — Wed, 07 May 2025 08:51:52 GMT

Hello Nabil,

Thanks for confirming that you see the same with 3.3v. I have tried this on my desk now and confirmed that it works here. Please try with the hex file below and see that you get the same result as well. The difference is that I assigned MISO to P1.7 because P1.3 is not routed to the pin header by default (see Configuring NFC pins as GPIOs).

Hex file

devzone.nordicsemi.com/.../fs_5F00_sample.hex

Test project

devzone.nordicsemi.com/.../fs_5F00_sample.zip

Pinout

Best regards,

Vidar

RE: SD Card: Error mounting file System error: -134

nbh — Mon, 05 May 2025 19:04:35 GMT

Hello thank you for your answer, as you predicted the default volatage was indeed set 1.8V.

However i still encounter the same issue after setting the voltage to 3.3V as described in the logs of the original post.

Thanks

Nabil

RE: SD Card: Error mounting file System error: -134

Vidar Berg — Mon, 05 May 2025 16:49:49 GMT

Hello,

Before I try to reproduce this on my desk, please try increasing the IO voltage to 3.3v if you haven't done so already. The default voltage is 1.8v and may not be supported by your SD card. The IO voltage is adjusted by changing the VDD in the board configurator app in nRF Connect for Desktop:

Best regards,

Vidar