SD card support to nRF5340

[ShuMan]

Hi,

Is there any example available for nRF5340-DK to read and write to external SD card ?

Thanks.

[Menon]

Hello Shubham,

You can find the samples here.

For getting more idea on SD Host controller you can keep this page as a reference.

Kind Regards,

Abhijith

[ShuMan]

Hi Menon,

I tried the fat_fs example but could not get the expected results.

As the fat_fs example shared by you is for nrf52840, I had created the nrf5340dk_nrf5340_cpuapp_ns.overlay and nrf5340dk_nrf5340_cpuapp_ns.conf files inside boards directory. 

* Copyright (c) 2019 Tavish Naruka <[e-mail]>

*

* SPDX-License-Identifier: Apache-2.0

*/

&spi3 {

        compatible = "nordic,nrf-spim";

        status = "okay";

        sck-pin = <17>;

        mosi-pin = <13>;

        miso-pin = <14>;

        cs-gpios = <&gpio0 18 0>;

        sdhc0: sdhc@0 {

                compatible = "zephyr,mmc-spi-slot";

                reg = <0>;

                status = "okay";

                label = "SDHC0";

                spi-max-frequency = <24000000>;

        };

};

CONFIG_DISK_DRIVER_SDMMC=y

CONFIG_SPI=y

Pin configuration:

SD card -- DK pin configuration.

VCC - 5V

GND - GND

CS - P0.18

DI - P0.14

DO - P0.13

CLK - P0.17

Flashed the application to the board but getting below error.

Moreover, I am getting the message " nrf5340dk_nrf5340_cpuapp_ns.overla is untracked".

Please let me know how to resolve this issue.

Thanks.