SPI peripherial with no output

RE: SPI peripherial with no output

Simonr — Mon, 04 May 2020 06:02:51 GMT

I'd like to see a picture or schematic of what pins are connected to the logic analyzer so I can double-check that the setup is correct.

Best regards,

Simon

RE: SPI peripherial with no output

Nihsrob — Sat, 02 May 2020 05:58:22 GMT

Hi,

Sorry, I didn't get the " physical setup from the EV kit to your logic analyzer? " meaning

did you mean port number setting from sdk_config.h or setting in nrf_drv_spi.h ?

or logic analyzer trigger setting?

Best regards,

Nihsrob

RE: SPI peripherial with no output

Simonr — Thu, 30 Apr 2020 06:57:39 GMT

Can you show me the physical setup from the EV kit to your logic analyzer?

I don't see any reason why your project shouldn't be able to communicate using SPI... Does an LED on the board toggle every 200ms as described in the example documentation?

Can you try doing an erase all and build + run the project again? Press Target and erase all in the dropdown menu in SES in order to do so.

Best regards,

Simon

RE: SPI peripherial with no output

Nihsrob — Wed, 29 Apr 2020 13:35:51 GMT

Hi,

sorry so the late reply. I was busy doing my homework in past few days. :-)

and yes, the J-link did work! and download successful message shown as following figure.

I was so frustrated with these SPI-series project, one of my teammates said that it should be one of the easiest projects in embedded system project.

Please feel free to ask any question or problem if you concerned. I hope that we can conquer the problem.

Best regards,

Nihsrob

RE: SPI peripherial with no output

Simonr — Mon, 27 Apr 2020 12:46:14 GMT

Again, thank you for being so detailed in your replies! It's not too often we get posts that are this thorough. One thing. When you flash the examples to your EV kit, do you see a "download successful" message like the one below in SES afterwards, to confirm that the firmware has been flashed onto the kit?

If not, please try to press the Build and Run option in the Build dropdown folder, and see if that flashes the board for you.

Best regards,

Simon

RE: SPI peripherial with no output

Nihsrob — Sat, 25 Apr 2020 07:37:53 GMT

Hi,

It's okay, I really thank you for giving me so many responses.

And Yes, I did read the complete BMD-340 User Guide as you mention above.

Maybe I can describe my problem again so that every reader can get my issue more clearly.

--------------------------------------------------------------------------------------------------------

The full-screen is I want to use BMD-340 operate function f_open("File_Name.txt") to an SD card. Then pass the f_open address such as 32'h00_00_00_01 to FPGA port in SPI_mode.

Base on the project description, It can be divided into 2 parts.

FIRST, BMD-340 use Nordic/examples/peripheral/fatfs to execute f_open and get the address. (O) <== SUCCEED !!!

[ It means BMD-340 can work on nordic peripheral, BMD-340 I/O PIN can work on SD card ]

SECOND, BMD-340 then pass value as "SPI MASTER" to other devices such as FPGA or something. (X) <== ISSUE

--------------------------------------------------------------------------------------------------------

So, All I want to do is to check WHETHER BMD-340 can work as SPI MASTER , passing value or any signal to its PIN.

IF it does ( MOSI_PIN or SCK_PIN detect any signal) , the Logic Analyzer should detect signal.

--------------------------------------------------------------------------------------------------------

I have tried Nordic/example/peripheral/ like spi , nrfx_spim , spi_master_using_nrf_spi_mngr

In there 3 examples, all the CODE is in default. Which means I totally modify nothing for any part of code.

I JUST used Logic Analyzer detect if there exists any signal on BMD-340 I/O PIN.

Results like what I have said above, I detect nothing. 😞

--------------------------------------------------------------------------------------------------------

I am confusing about how other project make it work ? Can anyone provide any source which can run in BMD-340.

My BMD-340 detect no signal but 5V output PIN and GND PIN.

============================================================

Now, I still struggling with this issue, and trying to figure out what

nrfx_spim_xfer_dcx( ) & nrfx_drv_spi_transfer( )

function work.

============================================================

Thank you for discussing this problem with me, I hope that we can keep moving on.

Best regards,

Nihsrob

RE: SPI peripherial with no output

Simonr — Fri, 24 Apr 2020 10:17:25 GMT

Sorry, I didn't realize that you were using the Rigado EV kit initially. This kit does have the 32kHz crystal oscillator, so the defines I posted should not be necessary.

Have you read through and completed the steps required to set up the evaluation board in the BMD-340 EV kit User Guide? I can't see anything wrong with your procedure, and the SPI should work using these pins, but seeing as you're using a BMD-340 kit we can't guarantee that our examples will run on it, as it is not our design. We don't have one available either I'm afraid, so I can't test it here on my end. What I can say, is that the nrfx_spim_pca10056 is working as intended on the nRF52840 DK.

Best regards,

Simon

RE: SPI peripherial with no output

Nihsrob — Thu, 23 Apr 2020 15:11:55 GMT

Hi, thank you for answering the problem.

And I added the code you supply, the logic analyzer still detect no signal for SCK , MOSI ...

-----------------------------------------------------

This is my [main.c], I added print "Failed!" when stuck in the while loop.

The debug mode actually keep printing "Failed" 😞

Here is another problem.

/**
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 * All rights reserved.
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 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form, except as embedded into a Nordic
 *    Semiconductor ASA integrated circuit in a product or a software update for
 *    such product, must reproduce the above copyright notice, this list of
 *    conditions and the following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 *
 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * 4. This software, with or without modification, must only be used with a
 *    Nordic Semiconductor ASA integrated circuit.
 *
 * 5. Any software provided in binary form under this license must not be reverse
 *    engineered, decompiled, modified and/or disassembled.
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 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
#include "nrfx_spim.h"
#include "app_util_platform.h"
#include "nrf_gpio.h"
#include "nrf_delay.h"
#include "boards.h"
#include "app_error.h"
#include <string.h>
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"

#define NRFX_SPIM_SCK_PIN  3
#define NRFX_SPIM_MOSI_PIN 4
#define NRFX_SPIM_MISO_PIN 28
#define NRFX_SPIM_SS_PIN   29
#define NRFX_SPIM_DCX_PIN  30

#define SPI_INSTANCE  3                                           /**< SPI instance index. */
static const nrfx_spim_t spi = NRFX_SPIM_INSTANCE(SPI_INSTANCE);  /**< SPI instance. */

static volatile bool spi_xfer_done;  /**< Flag used to indicate that SPI instance completed the transfer. */

#define TEST_STRING "Nordic123456789012345678901234567890"
static uint8_t       m_tx_buf[] = TEST_STRING;           /**< TX buffer. */
static uint8_t       m_rx_buf[sizeof(TEST_STRING) + 1];  /**< RX buffer. */
static const uint8_t m_length = sizeof(m_tx_buf);        /**< Transfer length. */

void spim_event_handler(nrfx_spim_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));
    }
}

int main(void)
{
    bsp_board_init(BSP_INIT_LEDS);

    APP_ERROR_CHECK(NRF_LOG_INIT(NULL));
    NRF_LOG_DEFAULT_BACKENDS_INIT();

    nrfx_spim_xfer_desc_t xfer_desc = NRFX_SPIM_XFER_TRX(m_tx_buf, m_length, m_rx_buf, m_length);

    nrfx_spim_config_t spi_config = NRFX_SPIM_DEFAULT_CONFIG;
    spi_config.frequency      = NRF_SPIM_FREQ_1M;
    spi_config.ss_pin         = NRFX_SPIM_SS_PIN;
    spi_config.miso_pin       = NRFX_SPIM_MISO_PIN;
    spi_config.mosi_pin       = NRFX_SPIM_MOSI_PIN;
    spi_config.sck_pin        = NRFX_SPIM_SCK_PIN;
    spi_config.dcx_pin        = NRFX_SPIM_DCX_PIN;
    spi_config.use_hw_ss      = true;
    spi_config.ss_active_high = false;
    APP_ERROR_CHECK(nrfx_spim_init(&spi, &spi_config, spim_event_handler, NULL));

    NRF_LOG_INFO("NRFX SPIM example started.");

    while (1)
    {
        // Reset rx buffer and transfer done flag
        memset(m_rx_buf, 0, m_length);
        spi_xfer_done = 0;//false;

        APP_ERROR_CHECK(nrfx_spim_xfer_dcx(&spi, &xfer_desc, 0, 15));

        while (!spi_xfer_done)
        {
printf("Failed!\n");
            __WFE();
        }

        NRF_LOG_FLUSH();

//        bsp_board_led_invert(BSP_BOARD_LED_0);
        nrf_delay_ms(200);
    }
}

Thank you for sharing that idea, I hope that we can keep moving with this problem.

Best regards,

Nihsrob

RE: SPI peripherial with no output

Simonr — Thu, 23 Apr 2020 12:52:41 GMT

A common problem with the modules is that they don't include the optional LF crystal that our SDK examples run by default. Please try adding the following defines to your sdk_config.h file:

// </e>

// <e> NRF_CLOCK_ENABLED - nrf_drv_clock - CLOCK peripheral driver - legacy layer
//==========================================================
#ifndef NRF_CLOCK_ENABLED
#define NRF_CLOCK_ENABLED 1
#endif
// <o> CLOCK_CONFIG_LF_SRC  - LF Clock Source
 
// <0=> RC 
// <1=> XTAL 
// <2=> Synth 
// <131073=> External Low Swing 
// <196609=> External Full Swing 

#ifndef CLOCK_CONFIG_LF_SRC
#define CLOCK_CONFIG_LF_SRC 0
#endif

// <q> CLOCK_CONFIG_LF_CAL_ENABLED  - Calibration enable for LF Clock Source
 

#ifndef CLOCK_CONFIG_LF_CAL_ENABLED
#define CLOCK_CONFIG_LF_CAL_ENABLED 1
#endif

// <o> CLOCK_CONFIG_IRQ_PRIORITY  - Interrupt priority
 

// <i> Priorities 0,2 (nRF51) and 0,1,4,5 (nRF52) are reserved for SoftDevice
// <0=> 0 (highest) 
// <1=> 1 
// <2=> 2 
// <3=> 3 
// <4=> 4 
// <5=> 5 
// <6=> 6 
// <7=> 7 

#ifndef CLOCK_CONFIG_IRQ_PRIORITY
#define CLOCK_CONFIG_IRQ_PRIORITY 6
#endif

//==========================================================
// <e> NRFX_CLOCK_ENABLED - nrfx_clock - CLOCK peripheral driver
//==========================================================
#ifndef NRFX_CLOCK_ENABLED
#define NRFX_CLOCK_ENABLED 1
#endif
// <o> NRFX_CLOCK_CONFIG_LF_SRC  - LF Clock Source
 
// <0=> RC 
// <1=> XTAL 
// <2=> Synth 
// <131073=> External Low Swing 
// <196609=> External Full Swing 

#ifndef NRFX_CLOCK_CONFIG_LF_SRC
#define NRFX_CLOCK_CONFIG_LF_SRC 0
#endif

// <o> NRFX_CLOCK_CONFIG_IRQ_PRIORITY  - Interrupt priority
 
// <0=> 0 (highest) 
// <1=> 1 
// <2=> 2 
// <3=> 3 
// <4=> 4 
// <5=> 5 
// <6=> 6 
// <7=> 7 

#ifndef NRFX_CLOCK_CONFIG_IRQ_PRIORITY
#define NRFX_CLOCK_CONFIG_IRQ_PRIORITY 6
#endif

Best regards,

SImon