QSPI for nrf5340-DK, examples and API functions

[MarcosDNordic]

I am working with the module nrf5340-DK. I am searching for an example to use the QSPI with the onboard external memory, could you share an example? and the other question is where is the API I must use to control the QSPI.

[Simon]

I think this ticket should be relevant: https://devzone.nordicsemi.com/f/nordic-q-a/72045/flash-filing-system-for-nrf-connect-sdk 

Please ask if you have any more questions

Best regards,

Simon

[MarcosDNordic]

I have checked the link.

  This link has filesystem options, we are searching for something more simple. In this link, we have also a link to a library Here but when I try to search this library in the zephyr folder I do not find it.

Could you help us with one example for nrf5340 where only read and write some bytes, we can continue after that.

[Simon]

MarcosDNordic said:

In this link, we have also a link to a library Here but when I try to search this library in the zephyr folder I do not find it.

 What version of NCS do you have? I have NCS v1.5.0 and I found it here: C:\Users\<user name>\ncs\v1.5.0\zephyr\drivers\flash\nrf_qspi_nor.c. 

MarcosDNordic said:

Could you help us with one example for nrf5340 where only read and write some bytes, we can continue after that

I think the sample C:\Users\<user name>\ncs\v1.5.0\zephyr\samples\drivers\spi_flash\src\main.c is a perfect fit. It does not use a file system, just pure flash write and read calls.

If the board nrf5340dk_nrf5340_cpuapp is used, the configurations in zephyr\samples\drivers\spi_flash\boards\nrf5340dk_nrf5340_cpuapp.conf will get automatically applied, which will make the driver nrf_qspi_nor.c get used under the hood. E.g. when flash_read() is called, the function qspi_nor_read() will get called under the hood. You don't need to worry about configuring the hardware, since qspi and the onboard flash is already set by default in the board file: zephyr/boards/arm/nrf5340dk_nrf5340/nrf5340_cpuapp_common.dts

Best regards,

Simon

[Thanuha]

Hi I am trying to interface QSPI with NRF5340 dk board. I am getting build errors. I have used SPI-FLASH sample and it was working fine and I am trying to change the SPI-FLASH code into a modular form for QSPI.

Here I am attaching the overlay file:

// To get started, press Ctrl+Space to bring up the completion menu and view the available nodes.

// You can also use the buttons in the sidebar to perform actions on nodes.

// Actions currently available include:

// * Enabling / disabling the node

// * Adding the bus to a bus

// * Removing the node

// * Connecting ADC channels

// For more help, browse the DeviceTree documentation at docs.zephyrproject.org/.../index.html

// You can also visit the nRF DeviceTree extension documentation at nrfconnect.github.io/.../nrfdevicetree.html

// &qspi {

//     status = "okay";

// };

/{

    aliases {

        flash = &mx25r64;

    };

};

// Configuration take from nrf5340_cpuapp_commom-pinctrl.dtsi file

&pinctrl {

    qspi_default: qspi_default {

        group1 {

            psels = <NRF_PSEL(QSPI_IO0, 0, 13)>,

                    <NRF_PSEL(QSPI_IO1, 0, 14)>,

                    <NRF_PSEL(QSPI_IO2, 0, 15)>,

                    <NRF_PSEL(QSPI_IO3, 0, 16)>,

                    <NRF_PSEL(QSPI_SCK, 0, 17)>,

                    <NRF_PSEL(QSPI_CSN, 0, 18)>;

            nordic,drive-mode = <NRF_DRIVE_H0H1>;

               

        };

    };

    qspi_sleep: qspi_sleep {

        group1 {

            psels = <NRF_PSEL(QSPI_IO0, 0, 13)>,

                    <NRF_PSEL(QSPI_IO1, 0, 14)>,

                    <NRF_PSEL(QSPI_IO2, 0, 15)>,

                    <NRF_PSEL(QSPI_IO3, 0, 16)>,

                    <NRF_PSEL(QSPI_SCK, 0, 17)>;

            low-power-enable;

                   

        };

        group2 {

            psels = <NRF_PSEL(QSPI_CSN, 0, 18)>;

            low-power-enable;

            bias-pull-up;

        };

    };

   

};

// Configuration take from nrf5340_cpuapp_commom.dtsi file

&qspi {

    status = "okay";

    pinctrl-0 = <&qspi_default>;

    pinctrl-1 = <&qspi_sleep>;

    pinctrl-names = "default", "sleep";

    mx25r64: mx25r6435f@0 {

        compatible = "nordic,qspi-nor";

        reg = <0>;

        /* MX25R64 supports only pp and pp4io */

        writeoc = "pp4io";

        /* MX25R64 supports all readoc options */

        readoc = "read4io";

        sck-frequency = <8000000>;

        jedec-id = [c2 28 17];

        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>;

    };

};

Here I am attaching the prj.conf :

CONFIG_GPIO = y

CONFIG_SPI_NOR = y

CONFIG_SPI = n

CONFIG_NORDIC_QSPI_NOR=y

CONFIG_NORDIC_QSPI_NOR_FLASH_LAYOUT_PAGE_SIZE=4096

CONFIG_TRUSTED_EXECUTION_SECURE=y

CONFIG_BUILD_WITH_TFM = n

This is the error I am getting:

FATAL ERROR: command exited with status 1: 'C:\ncs\toolchains\c57af46cb7\opt\bin\cmake.EXE' -DWEST_PYTHON=C:/ncs/toolchains/c57af46cb7/opt/bin/python.exe '-Bc:\Users\TDANAM\NRF\Flash\build' -GNinja '-Sc:\Users\TDANAM\NRF\Flash'

And I am using v2.5.2 sdk.

Please try to help in this.