nRF9160 and SD card example

RE: nRF9160 and SD card example

Hakon — Tue, 24 Mar 2020 12:47:06 GMT

I have been told you should use the littlefs sample instead of fat_fs. Try that and see how it works out for you.

RE: nRF9160 and SD card example

Jagruti — Fri, 20 Mar 2020 14:36:08 GMT

Thank you for the reply. I did the changes in files from zephyr which you showed, but it shows error. Now I am working on ncs tag v1.2.0 and zephyr v2.1.99 branch. still no progress. I always get the error CS control inhibited (no GPIO device).

RE: nRF9160 and SD card example

Hakon — Thu, 19 Mar 2020 12:48:10 GMT

You shouldn't edit the .dts file at all as far as I know. That's what the .overlay file is for. If you're asking which file the nrf9160_pca10090ns.overlay file is overriding, that would be nrf9160_pca10090_common.dts.

RE: nRF9160 and SD card example

Jagruti — Mon, 16 Mar 2020 13:43:09 GMT

Hello Hakon,

I am trying to do the same thing as Giannis. The files you have shown are olimexino_stm32.dts and nrf52840_blip.overlay. But we are working on nrf9160dk and not on nrf52840 blip board. So I will need to add nrf9160_pca10090ns.overlay file and do changes what you have told for nrf52840_blip.overlay file. But instead of olimexino_stm32.dts file, which file I should edit?

RE: nRF9160 and SD card example

Hakon — Tue, 03 Mar 2020 12:48:18 GMT

There have been some updates to the Zephyr repo, here and here. You can try to apply these changes and see if it works for you. I can unfortunately not test this myself at the moment because I'm out of office.

RE: nRF9160 and SD card example

Giannis Anastasopoulos — Mon, 02 Mar 2020 13:52:52 GMT

Jagruti
I didn't get the opportunity to run the example on the DK, but since you did it, perhaps you can share your configuration and perhaps Hakon can help both of us out on this one.

RE: nRF9160 and SD card example

Jagruti — Mon, 02 Mar 2020 13:39:23 GMT

Hello,

I am trying the same program and I am also getting the same error on nRF9160DK. Did you solve the problem? If yes, please help me with it.

RE: nRF9160 and SD card example

Hakon — Wed, 26 Feb 2020 08:49:20 GMT

You can try to run it on the DK and see if you get the same error there.

RE: nRF9160 and SD card example

Giannis Anastasopoulos — Sat, 22 Feb 2020 08:44:29 GMT

Yes, you are correct. I meant when I compile and run the code.

Yes, I have it. I was assuming that zephyr is compatible with all the boards it supports.

RE: nRF9160 and SD card example

Hakon — Fri, 21 Feb 2020 17:32:43 GMT

[quote user="Giannis Anastasopoulos"]When I compile the code, I see the following message:[/quote]

I guess you mean when you run the code, I got the same error when running it on the nRF52. I think the example is written for the nrf52 originally. Do you have a nrf91 dk available?

RE: nRF9160 and SD card example

Giannis Anastasopoulos — Mon, 17 Feb 2020 14:51:44 GMT

Hakon

I am just using the pins of the card, with SPI, I am not using an SDcard reader.

So the slave device is the SD card itself

RE: nRF9160 and SD card example

Hakon — Fri, 14 Feb 2020 15:25:51 GMT

I mean on the nrf9160.

RE: nRF9160 and SD card example

Giannis Anastasopoulos — Wed, 12 Feb 2020 16:28:34 GMT

You mean on my pc or on the nrf9160 custom board?

RE: nRF9160 and SD card example

Hakon — Wed, 12 Feb 2020 13:44:24 GMT

[quote user="Giannis Anastasopoulos"]The sd card I am using is the this one.[/quote]

What sd card reader are you using?

RE: nRF9160 and SD card example

Giannis Anastasopoulos — Mon, 10 Feb 2020 13:53:01 GMT

Hello Hakon,

Sorry for the delayed response. I am currently working with tag v1.1.0 of the nrf sdk.

At the moment I have the following prj.conf:

CONFIG_SPI=y
CONFIG_SPI_3=y
CONFIG_DISK_ACCESS=y
CONFIG_DISK_ACCESS_SDHC=y
CONFIG_DISK_ACCESS_SPI_SDHC=y
CONFIG_DISK_SDHC_VOLUME_NAME="SD"
CONFIG_LOG=y
CONFIG_FILE_SYSTEM=y
CONFIG_FAT_FILESYSTEM_ELM=y
CONFIG_PRINTK=y

overlay file:

&spi3 {
        status = "okay";
        sck-pin = <19>;
        mosi-pin = <18>;
        miso-pin = <17>;
};

&spi3 {
        cs-gpios = <&gpio0 16 1>;

        sdhc0: sdhc@0 {
                compatible = "zephyr,mmc-spi-slot";
                reg = <0>;
                status = "okay";
                label = "SDHC0";
                spi-max-frequency = <24000000>;
        };
};

and the main is this:

/*
 * Copyright (c) 2019 Tavish Naruka <tavishnaruka@gmail.com>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/* Sample which uses the filesystem API and SDHC driver */

#include <zephyr.h>
#include <device.h>
#include <disk/disk_access.h>
#include <logging/log.h>
#include <fs/fs.h>
#include <ff.h>

LOG_MODULE_REGISTER(main);

static int lsdir(const char *path);

static FATFS fat_fs;
/* mounting info */
static struct fs_mount_t mp = {
	.type = FS_FATFS,
	.fs_data = &fat_fs,
};

/*
*  Note the fatfs library is able to mount only strings inside _VOLUME_STRS
*  in ffconf.h
*/
static const char *disk_mount_pt = "/SD:";

void main(void)
{
	/* raw disk i/o */
	do {
		static const char *disk_pdrv = "SD";
		u64_t memory_size_mb;
		u32_t block_count;
		u32_t block_size;

		if (disk_access_init(disk_pdrv) != 0) {
			LOG_ERR("Storage init ERROR!");
			break;
		}

		if (disk_access_ioctl(disk_pdrv,
				DISK_IOCTL_GET_SECTOR_COUNT, &block_count)) {
			LOG_ERR("Unable to get sector count");
			break;
		}
		LOG_INF("Block count %u", block_count);

		if (disk_access_ioctl(disk_pdrv,
				DISK_IOCTL_GET_SECTOR_SIZE, &block_size)) {
			LOG_ERR("Unable to get sector size");
			break;
		}
		printk("Sector size %u\n", block_size);

		memory_size_mb = (u64_t)block_count * block_size;
		printk("Memory Size(MB) %u\n", (u32_t)memory_size_mb>>20);
	} while (0);

	mp.mnt_point = disk_mount_pt;

	int res = fs_mount(&mp);

	if (res == FR_OK) {
		printk("Disk mounted.\n");
		lsdir(disk_mount_pt);
	} else {
		printk("Error mounting disk.\n");
	}

	while (1) {
		k_sleep(K_MSEC(1000));
	}
}

static int lsdir(const char *path)
{
	int res;
	struct fs_dir_t dirp;
	static struct fs_dirent entry;

	/* Verify fs_opendir() */
	res = fs_opendir(&dirp, path);
	if (res) {
		printk("Error opening dir %s [%d]\n", path, res);
		return res;
	}

	printk("\nListing dir %s ...\n", path);
	for (;;) {
		/* Verify fs_readdir() */
		res = fs_readdir(&dirp, &entry);

		/* entry.name[0] == 0 means end-of-dir */
		if (res || entry.name[0] == 0) {
			break;
		}

		if (entry.type == FS_DIR_ENTRY_DIR) {
			printk("[DIR ] %s\n", entry.name);
		} else {
			printk("[FILE] %s (size = %zu)\n",
				entry.name, entry.size);
		}
	}

	/* Verify fs_closedir() */
	fs_closedir(&dirp);

	return res;
}

When I compile the code, I see the following message:

[00:00:00.005,950] [0m<inf> spi_nrfx_spim: CS control inhibited (no GPIO device)[0m

If I remove the sd card from the reader, I see the following messages:

14:45:40.709 -> [00:02:14.745,361] [1;31m<err> main: Storage init ERROR![0m
14:45:44.716 -> Error mounting disk.
14:45:45.698 -> [00:02:19.747,680] [1;31m<err> fs: fs mount error (-5)[0m

The sd card I am using is the this one.

I have formatted the sd card like this:

RE: nRF9160 and SD card example

Hakon — Tue, 04 Feb 2020 16:09:09 GMT

Hey,

are you on the master branch?

RE: nRF9160 and SD card example

Giannis Anastasopoulos — Fri, 31 Jan 2020 11:39:55 GMT

At the moment I can get my code loaded and compiled in SES, but I still cannot read data from the SD card.

So what I have now looks like this:

&spi3 {
        status = "okay";
        cs-gpios = <&gpio0 16 0>;        
        sdhc0: sdhc@0 {
                compatible = "mmc-spi-slot";
                reg = <0>;
                status = "okay";
                label = "SDHC0";
                spi-max-frequency = <24000000>;
        };
};

My device has the following pinout:
ss: 16
miso:17
mosi:18
sck:19

The prj.conf file I am using looks like this:

CONFIG_SPI=y
CONFIG_SPI_3=y
CONFIG_SPI_NRFX=y
CONFIG_SPI_3_NRF_SPIM=y
CONFIG_DISK_ACCESS=y
CONFIG_DISK_ACCESS_SDHC=y
CONFIG_DISK_ACCESS_SPI_SDHC=y
CONFIG_DISK_SDHC_VOLUME_NAME="SD"
CONFIG_LOG=y
CONFIG_FILE_SYSTEM=y
CONFIG_FAT_FILESYSTEM_ELM=y
CONFIG_PRINTK=y# CONFIG_NEWLIB_LIBC=y
# CONFIG_BSD_LIBRARY=y
# CONFIG_BSD_LIBRARY_TRACE_ENABLED=n
# CONFIG_TRUSTED_EXECUTION_NONSECURE=y
# CONFIG_NET_BUF_USER_DATA_SIZE=1024CONFIG_GPIO=y

I am pretty sure that I am missing something in the overlay file, but I don't know what.When I run the code I get the following output:

12:19:44.143 -> ***** Booting Zephyr OS build v2.0.99-ncs1-4-g52160ca9a102 *****
12:19:44.177 -> Error mounting disk.
12:19:44.177 -> [00:00:00.007,751] [1;31m<err> main: Storage init ERROR![0m
12:19:44.177 -> [00:00:00.007,781] [1;31m<err> fs: fs mount error (-5)[0m

Thank you in advance for your assistance.