can't SPI make work

[devcolorama]

nRF52832, SDK17.1, s132

I work with SPI and it works on the this project with SDK15.
But I have transferred this prj to the SDK17.1 and I can't make SPI work. 

I don't get 

spi_event_handler

where I set 

spi_xfer_done

flag.

here are my code with SPI init

#include <lis3dh.h>
#include <nrf_gpio.h>
#include "nrf_drv_spi.h"
#include "app_util_platform.h"
#include "nrf_log.h"
#include "nrf_delay.h"
#include "logic.h"


#define CTRL_REG1		0x20
#define CTRL_REG2		0x21
#define CTRL_REG3		0x22
#define CTRL_REG4		0x23
#define CTRL_REG5		0x24
#define CTRL_REG6		0x25
#define INT1_CFG		0x30
#define INT1_SRC		0x31
#define INT1_THS		0x32
#define INT1_DUR		0x33

#define LIS3DH_READ_MSK	128
#define LIS3DH_WRITE_MSK  0

#define SPI_INSTANCE  0 /**< SPI instance index. */
static const nrf_drv_spi_t spi = NRF_DRV_SPI_INSTANCE(SPI_INSTANCE);  /**< SPI instance. */
static volatile bool spi_xfer_done;  /**< Flag used to indicate that SPI instance completed the transfer. */

static uint8_t       m_tx_buf[2];           /**< TX buffer. */
static uint8_t       m_rx_buf[2];    /**< RX buffer. */
static const uint8_t m_length = sizeof(m_tx_buf);        /**< Transfer length. */


uint8_t lis_spi_error;

/**
 * @brief SPI user event handler.
 * @param event
 */
void spi_event_handler(nrf_drv_spi_evt_t const * p_event,
                       void *                    p_context)
{
    spi_xfer_done = true;
//    NRF_LOG_INFO("Transfer completed.");
    if (m_rx_buf[0] != 0)
    {
        NRF_LOG_INFO(" Received:");
//        NRF_LOG_HEXDUMP_INFO(m_rx_buf, strlen((const char *)m_rx_buf));
    }
}

static __INLINE uint8_t lis3dh_spi_read_write(const uint8_t reg, const uint8_t data)
{
//	uint8_t rx_buffer[2], tx_buffer[] = { reg, data };
    m_tx_buf [0] = reg;
    m_tx_buf [1] = data;
    
    spi_xfer_done = false;
    
    APP_ERROR_CHECK(nrf_drv_spi_transfer(&spi, m_tx_buf, m_length, m_rx_buf, m_length));
    
    while (!spi_xfer_done)
    {
        __WFE();
    }
	return m_rx_buf[1];
}

uint8_t lis3dh_read(const uint8_t reg) 
{		
	return lis3dh_spi_read_write(reg | LIS3DH_READ_MSK, 0xAA);	
}

void lis3dh_write(const uint8_t reg, const uint8_t data) 
{
	lis3dh_spi_read_write(reg | LIS3DH_WRITE_MSK, data);	
}
    
void lis3dh_init(void)
{    
    nrf_drv_spi_config_t spi_config = NRF_DRV_SPI_DEFAULT_CONFIG;
    spi_config.ss_pin   = SPI_SS;
    spi_config.miso_pin = SPI_MISO;
    spi_config.mosi_pin = SPI_MOSI;
    spi_config.sck_pin  = SPI_SCK;

    APP_ERROR_CHECK(nrf_drv_spi_init(&spi, &spi_config, spi_event_handler, NULL));

	lis3dh_write(CTRL_REG1, 0x2F); 			// low power mode, 1Hz (0x2F = 10 Hz)
	lis3dh_write(CTRL_REG2, 0x01); 			// high pass filter enabled for AOI1
	lis3dh_write(CTRL_REG3, 0x40); 			// AOI1 interrupt on INT1
	lis3dh_write(CTRL_REG4, 0x80); 			// BDU, full scale = +-2g
	lis3dh_write(CTRL_REG5, 0x00); 			
	lis3dh_write(INT1_THS,  2); 	        // threshold * 15.625 (mg)
	lis3dh_write(INT1_DUR, 	1); 		    // duration * 1 (s)
	lis3dh_write(INT1_CFG, 	0x15);			// X Or Y Or Z low events	
    
    if (lis3dh_read(CTRL_REG1) != 0x2F)
    {
        lis_spi_error = 10; 
    }
//    nrf_drv_spi_uninit(&spi); 
}

And sdk_config.h where I set for SPI


What possible reason?

Thanks.

[Kenneth]

But I have transferred this prj to the SDK17.1 and I can't make SPI work. 

Can you elaborate a bit more what doesn't work? Is there any error codes, do any of the spi transfers complete, does a logic analyzer trace show any data on the spi pins, is the spi data on mosi correct, do chip select toggle as expected etc.

Kenneth

[devcolorama]

Hi, Kenneth!

This board with SPI device LIS3DH works on the SDK15 properly. 
What I mean.
I call

lis3dh_write(CTRL_REG1, 0x2F); 	

and got 

spi_event_handler

where I set 

spi_xfer_done = true;

And I able to run next string:

lis3dh_write(CTRL_REG2, 0x01); 

One more time- it works on SDK15 on this board.

I've transferred this code to the SDK17.1
Made same settings and after start first string 

lis3dh_write(CTRL_REG1, 0x2F); 	

I didn't get interrupt

void spi_event_handler(nrf_drv_spi_evt_t const * p_event,
                       void *                    p_context)
{
    spi_xfer_done = true;
//    NRF_LOG_INFO("Transfer completed.");
    if (m_rx_buf[0] != 0)
    {
        NRF_LOG_INFO(" Received:");
//        NRF_LOG_HEXDUMP_INFO(m_rx_buf, strlen((const char *)m_rx_buf));
    }
}

And ofcource I can't run next string

lis3dh_write(CTRL_REG2, 0x01); 

But at this time MCU works and it counts global timer where increased variable. I can odserve it.

So I have question- may be in the new SDK17.1 should I chexk some settings for DMA, for SPI? But I checked it.

There are no any error wile MCU works and I wait call 

spi_event_handler()

Timer works.

[Kenneth]

If something externally is holding/forcing the clock pin low, that can for instance prevent the event handler to never toggle. Can that be the case?

Kenneth

[devcolorama]

Which clock pin do you mean?
This standart scheme MISO MOSI SCK. I copied those pin from SDK15 and transferred to SDK17 prj.

Let me show my config:

#define SPI_SCK  			10
#define SPI_MOSI 			9 
#define SPI_MISO 			8 
#define SPI_SS   			7 

It should works with those settings

[Kenneth]

Hi,

P0.10 can be used as NFC, have you set CONFIG_NFCT_PINS_AS_GPIOS in the preprocessor?

Kenneth