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Configuring and initializing the SPI1 and SPI0 for the two sensors in the nRF connect SDK for VS code.

Naveed

Hi,

I am using nrf52832 board and I want to configure the SPI0 and SPI1 for the sensors LIS2DW and BMP388 respectively.

I am new to nRF Connect SDK for VS code, I am exploring multiple Nordic website and following the steps.

Added configuration in the proj.conf file

# Enable Kconfigs for SPI and GPIO
CONFIG_GPIO=y
CONFIG_SPI=y

I have created a overlay file in my project to create a node for SPI and updated the pin configuration accordingly as below. Let me know is my configuration is correct.

pedo_sensor_spi: &spi1 {
    compatible = "nordic,nrf-spi"; 
    status = "okay";
    pinctrl-0 = <&spi1_default>;
    pinctrl-1 = <&spi1_sleep>;
    pinctrl-names = "default", "sleep";
    cs-gpios = <&gpio0 3 GPIO_ACTIVE_HIGH>;
    lis2dw: lis2dw@0{
        compatible = "st,lis2dw12";
        reg = <0>; /* What is the actual reg value should be? */
        spi-max-frequency = <125000>; /* how to decide the frequency here? */

    };
   
};
/* Change the pin configurations */
&pinctrl {
    spi1_default: spi1_default {
        group1 {
                psels = <NRF_PSEL(SPIM_SCK, 0, 2)>,
                        <NRF_PSEL(SPIM_MOSI, 0, 28)>,
                        <NRF_PSEL(SPIM_MISO, 0, 30)>;
        };
    };

    spi1_sleep: spi1_sleep {
        group1 {
                psels = <NRF_PSEL(SPIM_SCK, 0, 2)>,
                        <NRF_PSEL(SPIM_MOSI, 0, 28)>,
                        <NRF_PSEL(SPIM_MISO, 0, 30)>;
                low-power-enable;
        };
    };
};

bmp388_sensor_spi: &spi0 {
    compatible = "nordic,nrf-spi"; //using SPI as per ERRATA 58
    status = "okay";
    pinctrl-0 = <&spi0_default>;
    pinctrl-1 = <&spi0_sleep>;
    pinctrl-names = "default", "sleep";
    cs-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
    bmp388: bmp388@0{
        compatible = "bosch,bmp388";
        reg = <0>; /* What is the actual reg value should be? */
        spi-max-frequency = <125000>; /* how to decide the frequency here? */

    };
   
};
/* Change the pin configurations */
&pinctrl {
    spi0_default: spi0_default {
        group1 {
                psels = <NRF_PSEL(SPIM_SCK, 0, 15)>,
                        <NRF_PSEL(SPIM_MOSI, 0, 22)>,
                        <NRF_PSEL(SPIM_MISO, 0, 14)>;
        };
    };

    spi0_sleep: spi0_sleep {
        group1 {
                psels = <NRF_PSEL(SPIM_SCK, 0, 15)>,
                        <NRF_PSEL(SPIM_MOSI, 0, 22)>,
                        <NRF_PSEL(SPIM_MISO, 0, 14)>;
                low-power-enable;
        };
    };
};
Do we need to add aliases as well for it? if yes, how to add it?
After creating the configuration for SPI in overlay for SPI I am defining the below functions.
#define SPI1_PEDO       SPI_WORD_SET(8) | SPI_TRANSFER_MSB

struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(pedo_sensor_spi),SPI1_PEDO,0);
void spi_init (void)
{
    int err;
    err = spi_is_ready_dt(&pedo_spispec);
    if (!err) {
        LOG_ERR("Error: SPI device is not ready, err: %d", err);
    }

}
while building the code I am getting the error as below.
C:/ncs/v2.5.2/zephyr/include/zephyr/device.h:85:41: error: '__device_dts_ord_DT_N_S_soc_S_spi_40004000_BUS_ORD' undeclared here (not in a function).
TERMINAL:
C:/ncs/v2.5.2/zephyr/include/zephyr/device.h:85:41: error: '__device_dts_ord_DT_N_S_soc_S_spi_40004000_BUS_ORD' undeclared here (not in a function)
85 | #define DEVICE_NAME_GET(dev_id) _CONCAT(__device_, dev_id)
| ^~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/toolchain/common.h:132:26: note: in definition of macro '_DO_CONCAT'
132 | #define _DO_CONCAT(x, y) x ## y
| ^
C:/ncs/v2.5.2/zephyr/include/zephyr/device.h:85:33: note: in expansion of macro '_CONCAT'
85 | #define DEVICE_NAME_GET(dev_id) _CONCAT(__device_, dev_id)
| ^~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/device.h:211:37: note: in expansion of macro 'DEVICE_NAME_GET'
211 | #define DEVICE_DT_NAME_GET(node_id) DEVICE_NAME_GET(Z_DEVICE_DT_DEV_ID(node_id))
| ^~~~~~~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/device.h:228:34: note: in expansion of macro 'DEVICE_DT_NAME_GET'
228 | #define DEVICE_DT_GET(node_id) (&DEVICE_DT_NAME_GET(node_id))
| ^~~~~~~~~~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/drivers/spi.h:385:24: note: in expansion of macro 'DEVICE_DT_GET'
385 | .bus = DEVICE_DT_GET(DT_BUS(node_id)), \
| ^~~~~~~~~~~~~
../src/Application/pedometer_LIS2D.c:12:35: note: in expansion of macro 'SPI_DT_SPEC_GET'
12 | struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(pedo_sensor_spi),SPI1_PEDO,0);
| ^~~~~~~~~~~~~~~
In file included from C:/ncs/v2.5.2/zephyr/include/zephyr/arch/arm/aarch32/arch.h:20,
from C:/ncs/v2.5.2/zephyr/include/zephyr/arch/cpu.h:19,
from C:/ncs/v2.5.2/zephyr/include/zephyr/kernel_includes.h:33,
from C:/ncs/v2.5.2/zephyr/include/zephyr/kernel.h:17,
from C:/ncs/v2.5.2/zephyr/include/zephyr/net/buf.h:16,
from C:/ncs/v2.5.2/zephyr/include/zephyr/bluetooth/bluetooth.h:25,
from ../src/Application/app_init.h:10:
zephyr/include/generated/devicetree_generated.h:11486:40: error: 'DT_N_S_soc_S_spi_40004000_P_spi_max_frequency' undeclared here (not in a function); did you mean 'DT_N_S_soc_S_spi_40004000_P_max_frequency'?
11486 | #define DT_N_NODELABEL_pedo_sensor_spi DT_N_S_soc_S_spi_40004000
| ^~~~~~~~~~~~~~~~~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:4231:29: note: in definition of macro 'DT_CAT3'
4231 | #define DT_CAT3(a1, a2, a3) a1 ## a2 ## a3
| ^~
C:/ncs/v2.5.2/zephyr/include/zephyr/drivers/spi.h:332:30: note: in expansion of macro 'DT_PROP'
332 | .frequency = DT_PROP(node_id, spi_max_frequency), \
| ^~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/drivers/spi.h:386:27: note: in expansion of macro 'SPI_CONFIG_DT'
386 | .config = SPI_CONFIG_DT(node_id, operation_, delay_) \
| ^~~~~~~~~~~~~
../src/Application/pedometer_LIS2D.c:12:35: note: in expansion of macro 'SPI_DT_SPEC_GET'
12 | struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(pedo_sensor_spi),SPI1_PEDO,0);
| ^~~~~~~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:4229:24: note: in expansion of macro 'DT_N_NODELABEL_pedo_sensor_spi'
4229 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:197:29: note: in expansion of macro 'DT_CAT'
197 | #define DT_NODELABEL(label) DT_CAT(DT_N_NODELABEL_, label)
| ^~~~~~
../src/Application/pedometer_LIS2D.c:12:51: note: in expansion of macro 'DT_NODELABEL'
12 | struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(pedo_sensor_spi),SPI1_PEDO,0);
| ^~~~~~~~~~~~
zephyr/include/generated/devicetree_generated.h:11486:40: error: 'DT_N_S_soc_S_spi_40004000_P_duplex' undeclared here (not in a function); did you mean 'DT_N_S_soc_S_spi_40004000_P_reg'?
11486 | #define DT_N_NODELABEL_pedo_sensor_spi DT_N_S_soc_S_spi_40004000
| ^~~~~~~~~~~~~~~~~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:4231:29: note: in definition of macro 'DT_CAT3'
4231 | #define DT_CAT3(a1, a2, a3) a1 ## a2 ## a3
| ^~
C:/ncs/v2.5.2/zephyr/include/zephyr/drivers/spi.h:334:25: note: in expansion of macro 'DT_PROP'
334 | DT_PROP(node_id, duplex) | \
| ^~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/drivers/spi.h:386:27: note: in expansion of macro 'SPI_CONFIG_DT'
386 | .config = SPI_CONFIG_DT(node_id, operation_, delay_) \
| ^~~~~~~~~~~~~
../src/Application/pedometer_LIS2D.c:12:35: note: in expansion of macro 'SPI_DT_SPEC_GET'
12 | struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(pedo_sensor_spi),SPI1_PEDO,0);
| ^~~~~~~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:4229:24: note: in expansion of macro 'DT_N_NODELABEL_pedo_sensor_spi'
4229 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:197:29: note: in expansion of macro 'DT_CAT'
197 | #define DT_NODELABEL(label) DT_CAT(DT_N_NODELABEL_, label)
| ^~~~~~
../src/Application/pedometer_LIS2D.c:12:51: note: in expansion of macro 'DT_NODELABEL'
12 | struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(pedo_sensor_spi),SPI1_PEDO,0);
| ^~~~~~~~~~~~
zephyr/include/generated/devicetree_generated.h:11486:40: error: 'DT_N_S_soc_S_spi_40004000_P_frame_format' undeclared here (not in a function); did you mean 'DT_N_S_soc_S_spi_40004000_P_interrupts'?
11486 | #define DT_N_NODELABEL_pedo_sensor_spi DT_N_S_soc_S_spi_40004000
| ^~~~~~~~~~~~~~~~~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:4231:29: note: in definition of macro 'DT_CAT3'
4231 | #define DT_CAT3(a1, a2, a3) a1 ## a2 ## a3
| ^~
C:/ncs/v2.5.2/zephyr/include/zephyr/drivers/spi.h:335:25: note: in expansion of macro 'DT_PROP'
335 | DT_PROP(node_id, frame_format), \
| ^~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/drivers/spi.h:386:27: note: in expansion of macro 'SPI_CONFIG_DT'
386 | .config = SPI_CONFIG_DT(node_id, operation_, delay_) \
| ^~~~~~~~~~~~~
../src/Application/pedometer_LIS2D.c:12:35: note: in expansion of macro 'SPI_DT_SPEC_GET'
12 | struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(pedo_sensor_spi),SPI1_PEDO,0);
| ^~~~~~~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:4229:24: note: in expansion of macro 'DT_N_NODELABEL_pedo_sensor_spi'
4229 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:197:29: note: in expansion of macro 'DT_CAT'
197 | #define DT_NODELABEL(label) DT_CAT(DT_N_NODELABEL_, label)
| ^~~~~~
../src/Application/pedometer_LIS2D.c:12:51: note: in expansion of macro 'DT_NODELABEL'
12 | struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(pedo_sensor_spi),SPI1_PEDO,0);
| ^~~~~~~~~~~~
In file included from C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:19:
zephyr/include/generated/devicetree_generated.h:11491:57: warning: unsigned conversion from 'int' to 'short unsigned int' changes value from '1073758208' to '16384' [-Woverflow]
11491 | #define DT_N_S_soc_S_spi_40004000_REG_IDX_0_VAL_ADDRESS 1073758208 /* 0x40004000 */
| ^~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:4233:33: note: in expansion of macro 'DT_N_S_soc_S_spi_40004000_REG_IDX_0_VAL_ADDRESS'
4233 | #define DT_CAT4(a1, a2, a3, a4) a1 ## a2 ## a3 ## a4
| ^~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:2201:9: note: in expansion of macro 'DT_CAT4'
2201 | DT_CAT4(node_id, _REG_IDX_, idx, _VAL_ADDRESS)
| ^~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:2224:30: note: in expansion of macro 'DT_REG_ADDR_BY_IDX'
2224 | #define DT_REG_ADDR(node_id) DT_REG_ADDR_BY_IDX(node_id, 0)
| ^~~~~~~~~~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/drivers/spi.h:336:26: note: in expansion of macro 'DT_REG_ADDR'
336 | .slave = DT_REG_ADDR(node_id), \
| ^~~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/drivers/spi.h:386:27: note: in expansion of macro 'SPI_CONFIG_DT'
386 | .config = SPI_CONFIG_DT(node_id, operation_, delay_) \
| ^~~~~~~~~~~~~
../src/Application/pedometer_LIS2D.c:12:35: note: in expansion of macro 'SPI_DT_SPEC_GET'
12 | struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(pedo_sensor_spi),SPI1_PEDO,0);
| ^~~~~~~~~~~~~~~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:4229:24: note: in expansion of macro 'DT_N_NODELABEL_pedo_sensor_spi'
4229 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
C:/ncs/v2.5.2/zephyr/include/zephyr/devicetree.h:197:29: note: in expansion of macro 'DT_CAT'
197 | #define DT_NODELABEL(label) DT_CAT(DT_N_NODELABEL_, label)
| ^~~~~~
../src/Application/pedometer_LIS2D.c:12:51: note: in expansion of macro 'DT_NODELABEL'
12 | struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(pedo_sensor_spi),SPI1_PEDO,0);
| ^~~~~~~~~~~~
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ninja: build stopped: subcommand failed.
Please let me know what I am missing here in the configuration of SPI in the overlay file. What are the things to taken care in the overlay file and during the initialization of the SPI?
Your inputs will be appreciated.
Regards,
Naveed
Parents
  • 0

    You should use sensor node to get the spi spec, not the spi device.

    You can use it like this:

    struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(lis2dw),SPI1_PEDO,0);

    It is not compulsory to have alias, but this is how you can define and use them:

    //adding in the overlay:

/{
    aliases{
        mysensor1 = &lis2dw;
        mysensor2 = &bmp388;
    };
};

    and using in the main.c:

    struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_ALIAS(mysensor1),SPI1_PEDO,0);

Reply
  • 0

    You should use sensor node to get the spi spec, not the spi device.

    You can use it like this:

    struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_NODELABEL(lis2dw),SPI1_PEDO,0);

    It is not compulsory to have alias, but this is how you can define and use them:

    //adding in the overlay:

/{
    aliases{
        mysensor1 = &lis2dw;
        mysensor2 = &bmp388;
    };
};

    and using in the main.c:

    struct spi_dt_spec pedo_spispec = SPI_DT_SPEC_GET(DT_ALIAS(mysensor1),SPI1_PEDO,0);

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