Failing to build FAT_FS sample on nRF5340dk

RE: Failing to build FAT_FS sample on nRF5340dk

Naeem Maroof — Tue, 15 Aug 2023 14:48:19 GMT

Hello

The line:

DT_HAS_ZEPHYR_SDMMC_DISK_ENABLED=y

is not allowed in the prj.conf

Actually when you are setting: CONFIG_SDMMC_SUBSYS

It is dependent upon DT_HAS_ZEPHYR_SDMMC_DISK_ENABLED symbol,

which means that the DT (device tree) should have ZEPHYR_SDMMC_DISK which is compatible property of the MMC (the child node of SDHC)

I am just attaching my prj.conf and the overlay file.

CONFIG_DISK_ACCESS=y
CONFIG_LOG=y
CONFIG_FILE_SYSTEM=y
CONFIG_FAT_FILESYSTEM_ELM=y
CONFIG_PRINTK=y
CONFIG_MAIN_STACK_SIZE=2048

CONFIG_DISK_DRIVER_SDMMC=y
CONFIG_SPI=y
CONFIG_DISK_DRIVERS=y
CONFIG_SDMMC_STACK=y
CONFIG_SDMMC_SUBSYS=y

&spi2 {
	compatible = "nordic,nrf-spim";
	status = "okay";
	cs-gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
	pinctrl-0 = <&spi2_default>;
	pinctrl-1 = <&spi2_sleep>;
	pinctrl-names = "default", "sleep";
	sdhc0: sdhc@0 {
		compatible = "zephyr,sdhc-spi-slot";
		reg = <0>;
		status = "okay";
		mmc {
			compatible = "zephyr,sdmmc-disk";
			status = "okay";
		};
		spi-max-frequency = <24000000>;
	};
 };

 &pinctrl {
	spi2_default: spi2_default {
	   group1 {
		  psels = 	<NRF_PSEL(SPIM_SCK, 0, 17)>,
		  			<NRF_PSEL(SPIM_MOSI, 0, 13)>,
					<NRF_PSEL(SPIM_MISO, 0, 14)>;
			 	bias-pull-up;
	   };
	};
	spi2_sleep: spi2_sleep {
	   group1 {
		  psels =	<NRF_PSEL(SPIM_SCK, 0, 17)>,
		  			<NRF_PSEL(SPIM_MOSI, 0, 13)>,
					<NRF_PSEL(SPIM_MISO, 0, 14)>;
				low-power-enable;
	   };
	};
 };

BR,

Naeem

RE: Failing to build FAT_FS sample on nRF5340dk

Espen — Fri, 11 Aug 2023 07:00:57 GMT

My prj.conf looks like this:

CONFIG_DISK_ACCESS=y
CONFIG_LOG=y
CONFIG_FILE_SYSTEM=y
CONFIG_FAT_FILESYSTEM_ELM=y
CONFIG_PRINTK=y
CONFIG_MAIN_STACK_SIZE=2048
CONFIG_DISK_DRIVER_SDMMC=y
CONFIG_SPI=y

CONFIG_DISK_DRIVERS=y
CONFIG_SDMMC_STACK=y
DT_HAS_ZEPHYR_SDMMC_DISK_ENABLED=y
CONFIG_SDMMC_SUBSYS=y

And my overlay file looks like this:

&spi1 {
        status = "okay";
        cs-gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
        sck-pin = <17>;
        mosi-pin = <13>;
        miso-pin = <14>;

        sdhc0: sdhc@0 {
                compatible = "zephyr,sdhc-spi-slot";
                reg = <0>;
                status = "okay";
                mmc {
                    compatible = "zephyr,sdmmc-disk";
                    status = "okay";
                };
                spi-max-frequency = <24000000>;
        };
};

My version of NCS is 2.4.0

RE: Failing to build FAT_FS sample on nRF5340dk

Naeem Maroof — Thu, 10 Aug 2023 11:35:32 GMT

Hello,

Looks like the overlay is not configured as it should be.

Can you send me your prj.conf and the overlay that you are using for the 5340 target.

Please mention which NCS version you are using.

Regards,

Naeem

RE: Failing to build FAT_FS sample on nRF5340dk

Espen — Wed, 09 Aug 2023 13:18:09 GMT

Thanks for the response. I have connected as you specified. Still the same error. I have formatted the disk using the SD Card Formatter. I also tried enabling the configs. But I did not get CONFIG_SDMMC_SUBSYS to work. I got the warning:

CONFIG_SDMMC_SUBSYS was assigned the value y, but got the value n. Missing dependencies:
DT_HAS_ZEPHYR_SDMMC_DISK_ENABLED

When trying to enable DT_HAS_ZEPHYR_SDMMC_DISK_ENABLEDI got the warning:

ignoring malformed line 'DT_HAS_ZEPHYR_SDMMC_DISK_ENABLED=y'

I have also tried to use a logic analyzer on the outputs on the board. But I got no signal on any of the pins. So I think the problem might lay there.

RE: Failing to build FAT_FS sample on nRF5340dk

Naeem Maroof — Fri, 30 Jun 2023 10:01:22 GMT

Hi Espen,

Apologies for the delayed response.

I am not sure whether it appears wrong to me or it actually is.
Looks to me that you have green-wire connecting pin-13 to the DO, and the blue-wire connecting pin-14 to the DI.

Can you make sure that you are connecting MOSI (pin-13 in your overlay) to the DI,
and the MISO (pin-14 in the overlay) to the DO on the SDCard side.

Moreover, can you check that your SD card is properly formatted. Please use official tools if possible (as some user experienced problems with formatting)

Please see and use (if applicable) the following configs as well:

CONFIG_DISK_DRIVERS
CONFIG_SDMMC_STACK
CONFIG_SDMMC_SUBSYS

BR,
Naeem

RE: Failing to build FAT_FS sample on nRF5340dk

Espen — Fri, 23 Jun 2023 07:37:16 GMT

The connections should be solid. Cant detect anything wrong there. I am using a Transcend Premium 32Gb memory card. Everything seems to check out in the datasheet.

My config file is:

CONFIG_DISK_ACCESS=y
CONFIG_LOG=y
CONFIG_FILE_SYSTEM=y
CONFIG_FAT_FILESYSTEM_ELM=y
CONFIG_PRINTK=y
CONFIG_MAIN_STACK_SIZE=2048
CONFIG_DISK_DRIVER_SDMMC=y
CONFIG_SPI=y

RE: Failing to build FAT_FS sample on nRF5340dk

Naeem Maroof — Wed, 21 Jun 2023 17:24:21 GMT

Can you make sure that connections are correct and solid (no loose wires).

I do not see the card in the memory reader. Which memory card you are using? What is its capacity?

Can you also look at its datasheet to make sure that everything is correct.

Please share your project configurations as well.

RE: Failing to build FAT_FS sample on nRF5340dk

Espen — Wed, 21 Jun 2023 12:10:11 GMT

The connections are shown in the images bellow. I hope their not in to bad quality to be viewed.

I have connected it like this:

5v - 5v

GND - GND

P0.18 - CS

P0.17 - CLK

DI - P0.14

DO - P0.13

My overlay file looks like this:

EDIT: Although the image does not show it, I have an SD-card plugged into the SD-card breakoutboard

RE: Failing to build FAT_FS sample on nRF5340dk

Naeem Maroof — Wed, 21 Jun 2023 11:39:26 GMT

How is your hardware setup?

Can you show me a snapshot of your board and connections.

RE: Failing to build FAT_FS sample on nRF5340dk

Espen — Wed, 21 Jun 2023 11:33:37 GMT

Thanks! That works. But now I get the same error as the thread I lined to. But the suggested answers did not work for me. The exact error is:

[00:00:00.449,340] <err> main: Storage init ERROR!
[00:00:00.449,371] <err> fs: fs mount error (-5)
Error mounting disk.

I have seen a lot of other people getting the same error. But their solutions don't seem to work for me.

RE: Failing to build FAT_FS sample on nRF5340dk

Naeem Maroof — Wed, 21 Jun 2023 11:26:37 GMT

Hi Espen,

Thank you for contacting DevZone at NordicSemi.

I think the problem is coming from the naming of the overlay and conf files and the platform for which you are building the sample.

As in the FAT_FS, the overlay and conf files for the nrf52840_nrf52840 are provided, you may copy the contents and generate new files with "nrf5340dk_5340_cpuapp" name and correct file-type (.overlay, and .conf), and then build it for "nrf5340dk_5340_cpuapp" target (not the _ns target).

Hope it helps,

BR,

Naeem