nrf52810 spi is not working.

[mosonu]

Hello I have an nrf52810 custom board and in this board SPI is not work. When I try to use e-paper with SPI, SPI MOSI and SCK pins are not working.

I also tried nrf52840 board and in this board everything works fine.

Overlay for nrf52810: 

Overlay for nrf52840:

Complete Code :

#include <zephyr/kernel.h>

#include <zephyr/sys/printk.h>

#include <zephyr/drivers/gpio.h>

#include <zephyr/drivers/spi.h>

#include "../e_paper_lib/DEV_Config.h"

#include "../e_paper_lib/EPD_2in13_V3.h"

#include "../e_paper_lib/GUI_Paint.h"

#include "../e_paper_lib/ImageData.h"

#include <string.h>

#include <stdlib.h>

#define COLORED     0

#define UNCOLORED   1

#define MY_GPIO0 DT_NODELABEL(gpio1)

#define SPI0_NODE DT_NODELABEL(spi1)

const struct device *gpio0_dev = DEVICE_DT_GET(MY_GPIO0);

const struct device *spi0_dev = DEVICE_DT_GET(SPI0_NODE);

/*

SPI MOSI P012

SPI SCK P014

CS P09

*/

const struct spi_config spi_cfg = {

    .frequency = 4000000U, // 125000U : for slow mode

    .operation = SPI_WORD_SET(8) | SPI_TRANSFER_MSB | SPI_OP_MODE_MASTER};

int main(void)

{

    wait_for_gpio0_ready();

    int ret = gpio_pin_configure(gpio0_dev, EPD_CS_PIN, GPIO_OUTPUT);

    if (ret < 0)

    {

        printk("Error .. \n");

    }

    ret = gpio_pin_configure(gpio0_dev, EPD_DC_PIN, GPIO_OUTPUT);

    if (ret < 0)

    {

        printk("Error .. \n");

    }

    ret = gpio_pin_configure(gpio0_dev, EPD_RST_PIN, GPIO_OUTPUT);

    if (ret < 0)

    {

        printk("Error .. \n");

    }

    ret = gpio_pin_configure(gpio0_dev, EPD_BUSY_PIN, GPIO_INPUT);

    if (ret < 0)

    {

        printk("Error .. \n");

    }

 Debug("EPD_2in13_V3_test Demo\r\n");

    if(DEV_Module_Init()!=0){

        return -1;

    }

    Debug("e-Paper Init and Clear...\r\n");

    EPD_2in13_V3_Init();

    EPD_2in13_V3_Clear();

    //Create a new image cache

    UBYTE *BlackImage;

    UWORD Imagesize = ((EPD_2in13_V3_WIDTH % 8 == 0)? (EPD_2in13_V3_WIDTH / 8 ): (EPD_2in13_V3_WIDTH / 8 + 1)) * EPD_2in13_V3_HEIGHT;

    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {

        Debug("Failed to apply for black memory...\r\n");

        return -1;

    }

    Debug("Paint_NewImage\r\n");

    Paint_NewImage(BlackImage, EPD_2in13_V3_WIDTH, EPD_2in13_V3_HEIGHT, 90, WHITE);

    Paint_Clear(WHITE);

 

    Debug("show image for array\r\n");

    Paint_SelectImage(BlackImage);

    Paint_Clear(WHITE);

    Paint_DrawBitMap(gImage_2in13);

    EPD_2in13_V3_Display(BlackImage);

    DEV_Delay_ms(2000);

    Paint_NewImage(BlackImage, EPD_2in13_V3_WIDTH, EPD_2in13_V3_HEIGHT, 90, WHITE);    

    Debug("Drawing\r\n");

    //1.Select Image

    Paint_SelectImage(BlackImage);

    Paint_Clear(WHITE);

   

    // 2.Drawing on the image

    Paint_DrawPoint(5, 10, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);

    Paint_DrawPoint(5, 25, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);

    Paint_DrawPoint(5, 40, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);

    Paint_DrawPoint(5, 55, BLACK, DOT_PIXEL_4X4, DOT_STYLE_DFT);

    Paint_DrawLine(20, 10, 70, 60, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);

    Paint_DrawLine(70, 10, 20, 60, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);

    Paint_DrawRectangle(20, 10, 70, 60, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);

    Paint_DrawRectangle(85, 10, 135, 60, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);

    Paint_DrawLine(45, 15, 45, 55, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);

    Paint_DrawLine(25, 35, 70, 35, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);

    Paint_DrawCircle(45, 35, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);

    Paint_DrawCircle(110, 35, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);

    Paint_DrawString_EN(140, 15, "test", &Font16, BLACK, WHITE);

    Paint_DrawNum(140, 40, 1998, &Font16, BLACK, WHITE);

    EPD_2in13_V3_Display_Base(BlackImage);

    DEV_Delay_ms(3000);

    Debug("Goto Sleep...\r\n");

    EPD_2in13_V3_Sleep();

    free(BlackImage);

    BlackImage = NULL;

    DEV_Delay_ms(2000);//important, at least 2s

    // close 5V

    Debug("close 5V, Module enters 0 power consumption ...\r\n");

    DEV_Module_Exit();

}


When I flash to the nrf52810 chip, I change spi1 and gpio1 to spi0 and gpio0. I also check the gpio pins for nrf52810 and pins work fine.

Thanks for your helps.

[Håkon Alseth]

Hi,

 

Have you scoped the SPI pins to see if there's any activity at all? 

SPI MOSI P012

SPI SCK P014

CS P09

If you are using the nrf52dk_nrf52810 board, P0.14 is "button1", so it is important that you do not enable the "DK buttons and leds" library (check that CONFIG_DK_LIBRARY is not set).

 

Kind regards,

Håkon

[mosonu]

I already check that pins using ossiloscope but there is not any signal.

Config file:

# BEGIN Configurations from basic/minimal

CONFIG_NCS_SAMPLES_DEFAULTS=y

CONFIG_BT=y

CONFIG_BT_PERIPHERAL=y

CONFIG_BT_DEVICE_NAME="Test"

# Enable the LBS service

CONFIG_BT_LBS=n

CONFIG_BT_LBS_POLL_BUTTON=n

CONFIG_DK_LIBRARY=n

CONFIG_NEWLIB_LIBC=y

# Drivers and peripherals

CONFIG_I2C=n

CONFIG_WATCHDOG=n

CONFIG_GPIO=y

CONFIG_SPI=y

CONFIG_SERIAL=n

# Power management

CONFIG_PM=n

# Interrupts

CONFIG_DYNAMIC_INTERRUPTS=n

CONFIG_IRQ_OFFLOAD=n

# Memory protection

CONFIG_THREAD_STACK_INFO=n

CONFIG_THREAD_CUSTOM_DATA=n

CONFIG_FPU=n

# Boot

CONFIG_BOOT_BANNER=n

CONFIG_BOOT_DELAY=0

# Console

CONFIG_CONSOLE=n

CONFIG_UART_CONSOLE=n

CONFIG_STDOUT_CONSOLE=n

CONFIG_PRINTK=n

CONFIG_EARLY_CONSOLE=n

# Build

CONFIG_SIZE_OPTIMIZATIONS=y

# ARM

CONFIG_ARM_MPU=n

# END Configurations from basic/minimal

# In order to correctly tune the stack sizes for the threads the following

# Configurations can enabled to print the current use:

# CONFIG_THREAD_NAME=y

# CONFIG_THREAD_ANALYZER=y

# CONFIG_THREAD_ANALYZER_AUTO=y

# CONFIG_THREAD_ANALYZER_RUN_UNLOCKED=y

# CONFIG_THREAD_ANALYZER_USE_PRINTK=y

# CONFIG_CONSOLE=y

# CONFIG_UART_CONSOLE=y

# CONFIG_SERIAL=y

# CONFIG_PRINTK=y

# Example output of thread analyzer

# SDC RX              : unused 816 usage 208 / 1024 (20 %)

# BT RX               : unused 1784 usage 416 / 2200 (18 %)

# BT TX               : unused 992 usage 544 / 1536 (35 %)

# thread_analyzer     : unused 136 usage 376 / 512 (73 %)

# sysworkq            : unused 1824 usage 224 / 2048 (10 %)

# MPSL signal         : unused 520 usage 504 / 1024 (49 %)

# idle 00             : unused 192 usage 64 / 256 (25 %)

# main                : unused 136 usage 888 / 1024 (86 %)

# Configurations set based on thread analyzer output.

CONFIG_BT_RX_STACK_SIZE=1024

CONFIG_BT_HCI_TX_STACK_SIZE_WITH_PROMPT=y

CONFIG_BT_HCI_TX_STACK_SIZE=640

CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=512

CONFIG_MPSL_WORK_STACK_SIZE=640

CONFIG_MAIN_STACK_SIZE=1024

CONFIG_IDLE_STACK_SIZE=128

CONFIG_ISR_STACK_SIZE=1024

CONFIG_DEV_CONFIG=y

CONFIG_EPAPER_2IN13=n

CONFIG_EPAPER_2IN13_V3=y

CONFIG_GUI_PAINT=y

CONFIG_IMAGE_DATA=y

CONFIG_FONTS=y

CONFIG_ESL_BLE=y

# Disable features not needed

CONFIG_TIMESLICING=n

CONFIG_MINIMAL_LIBC_MALLOC=n

CONFIG_LOG=n

CONFIG_ASSERT=n

# Disable Bluetooth features not needed

CONFIG_BT_DEBUG_NONE=y

CONFIG_BT_ASSERT=n

CONFIG_BT_DATA_LEN_UPDATE=n

CONFIG_BT_PHY_UPDATE=n

CONFIG_BT_GATT_CACHING=n

CONFIG_BT_GATT_SERVICE_CHANGED=n

CONFIG_BT_GAP_PERIPHERAL_PREF_PARAMS=n

CONFIG_BT_SETTINGS_CCC_LAZY_LOADING=y

CONFIG_BT_HCI_VS_EXT=n

# Disable Bluetooth controller features not needed

CONFIG_BT_CTLR_PRIVACY=n

CONFIG_BT_CTLR_PHY_2M=n

# Reduce Bluetooth buffers

CONFIG_BT_BUF_EVT_DISCARDABLE_COUNT=1

CONFIG_BT_BUF_EVT_DISCARDABLE_SIZE=43

CONFIG_BT_BUF_EVT_RX_COUNT=2

CONFIG_BT_CONN_TX_MAX=2

CONFIG_BT_L2CAP_TX_BUF_COUNT=2

CONFIG_BT_CTLR_RX_BUFFERS=1

CONFIG_BT_BUF_ACL_TX_COUNT=3

CONFIG_BT_BUF_ACL_TX_SIZE=27

 

Also here is the spi write function:

void DEV_SPI_WriteByte(UBYTE value)

{

    struct spi_buf bufs[] = {

        {

            .buf = &value,

            .len = 1

        },

    };

    struct spi_buf_set tx = {

        .buffers = bufs,

        .count = 1

    };

    spi_write(spi0_dev, &spi_cfg, &tx);

   

}

[mosonu]

I also checked gpio configurations of nrf52810 using zephyr libs. It works fine on SPI pins P012 and P014  other P09, P06, P05 and P04 pins for configuring e-paper is works fine also.

Is there any bare metal programming guide or code that I can try for SPI?

[Håkon Alseth]

There are nrfx_spim sample(s) available here:

https://github.com/zephyrproject-rtos/hal_nordic/tree/master/nrfx/samples/src/nrfx_spim

mosonu said:

It works fine on SPI pins P012 and P014  other P09, P06, P05 and P04 pins for configuring e-paper is works fine also.

I am sorry, but I'm not certain if I understood this:

Can you confirm that it does work on nRF52810 if you change the pins to P09/P06/P05/P04 ?

 

Kind regards,

Håkon

[mosonu]

Yeah the pins are work fine in nrf52810. I configured HIGH and LOW and observe in the oscilloscope. But there is a problem with the SPI. I wıll check the nrfx_spim example.