Need MFRC522 C library for NRF52833 ???

RE: Need MFRC522 C library for NRF52833 ???

akaza-2349 — Sat, 22 Feb 2025 16:41:25 GMT

how to fix timeout error?

RE: Need MFRC522 C library for NRF52833 ???

hjjang — Mon, 18 Mar 2024 12:11:14 GMT

Thanks you helped me solve it!!!

RE: Need MFRC522 C library for NRF52833 ???

Ben Ammar Elyess — Mon, 18 Mar 2024 11:50:16 GMT

Yes, I used it.

RE: Need MFRC522 C library for NRF52833 ???

hjjang — Mon, 18 Mar 2024 00:55:36 GMT

I solved the problem. One question is, did you use PICC_ReadCardSerial() function?

/*************************/ bool PICC_ReadCardSerial(void) { byte result = PICC_Select(&uid, 0); //printf("===========\r\n"); for(int i=0; i<10; i++) { tagID[i] = uid.uidByte[i]; //printf("%d", tagID[i]); } //printf("===========\r\n"); return (result == STATUS_OK);//return a '1' if PICC_Select returns a '1', else a '0' }

RE: Need MFRC522 C library for NRF52833 ???

Ben Ammar Elyess — Fri, 15 Mar 2024 12:54:05 GMT

Hi,

Which timeout error did you get?

There is 2 timeout errors in PCD_CommunicateWithPICC function.

for (i = 2000; i > 0; i--) {
		uint8_t n = PCD_ReadRegister(ComIrqReg);	// ComIrqReg[7..0] bits are: Set1 TxIRq RxIRq IdleIRq HiAlertIRq LoAlertIRq ErrIRq TimerIRq
                if (n & waitIRq) 
                {	// One of the interrupts that signal success has been set.
                        break;
		}
                //printf("%02x",n);
		if (n & 0x01) 
                {	// Timer interrupt - nothing received in 25ms
                        return STATUS_TIMEOUT;
		}
	}
// 35.7ms and nothing happend. Communication with the MFRC522 might be down.
if (i == 0) 
{
	return STATUS_TIMEOUT;
}

I didn't get a timeout error except the one in the loop , which is normal because there's nothing received in that period.

RE: Need MFRC522 C library for NRF52833 ???

hjjang — Fri, 15 Mar 2024 02:11:02 GMT

hi! Have you solved the timeout error?

RE: Need MFRC522 C library for NRF52833 ???

Ben Ammar Elyess — Thu, 14 Mar 2024 10:36:24 GMT

Hi Imad,

I had the same issue and it gets fixed by changing the value of the ORC from 0xFF to 0x00.

nrf_drv_spi_config_t spi_config = NRF_DRV_SPI_DEFAULT_CONFIG;
spi_config.ss_pin   = SPI_SS_PIN;
spi_config.miso_pin = SPI_MISO_PIN;
spi_config.mosi_pin = SPI_MOSI_PIN;
spi_config.sck_pin  = SPI_SCK_PIN;
spi_config.orc      = 0x00;                                    
spi_config.frequency = NRF_DRV_SPI_FREQ_8M;                     
spi_config.mode      = NRF_DRV_SPI_MODE_0;         
spi_config.bit_order = NRF_DRV_SPI_BIT_ORDER_MSB_FIRST;
APP_ERROR_CHECK(nrf_drv_spi_init(&spi, &spi_config, spi_event_handler, NULL));

RE: Need MFRC522 C library for NRF52833 ???

ImadMaalouf — Mon, 06 Feb 2023 08:42:25 GMT

Hi Sharath,

I am facing the same issue, have you been able to find a solution

RE: Need MFRC522 C library for NRF52833 ???

Sharath m — Fri, 24 Sep 2021 07:03:16 GMT

Hi,

I am also facing same issue i am able to read the version register

I am using 17.1.0nRF5 SDK

Im developing NRF52 DK.

I'm building library C SPI mfrc522 for NRF52.
I'm implement PCD_Read and write PCD_register look OK, But i call function PICC_IsNewCardPresent() in main loop not detected NFC tag, nothing happened!!! ????

#include "nrf_drv_spi.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"
#include "mfrc522.h"




#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. */

#define TEST_STRING "Nordic"
static uint8_t       m_tx_buf[2];//   /**< TX buffer. */
static uint8_t       m_rx_buf[1];    /**< RX buffer. */
static uint8_t       m_write_buf[1];    /**< RX buffer. */
static const uint8_t m_length = 1;        /**< Transfer length. */
static const uint8_t m_tx_length = 2;        /**< Transfer length. */
/**
 * @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;
 #if 0    
    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));
    }
    
#endif
}



int main(void)
{
    bsp_board_init(BSP_INIT_LEDS);

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

#if 0
    nrf_gpio_cfg_output(SPI_SS_PIN);
    nrf_drv_spi_config_t spi_config = NRF_DRV_SPI_DEFAULT_CONFIG;
    spi_config.ss_pin   = SPI_SS_PIN;
    spi_config.miso_pin = SPI_MISO_PIN;
    spi_config.mosi_pin = SPI_MOSI_PIN;
    spi_config.sck_pin  = SPI_SCK_PIN;
    APP_ERROR_CHECK(nrf_drv_spi_init(&spi, &spi_config, spi_event_handler, NULL));
#endif
   
    NRF_LOG_INFO("SPI example started.");
    mfrc522_init();
    //PCD_PerformSelfTest();
    //PCD_Reset();


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

        APP_ERROR_CHECK(nrf_drv_spi_transfer(&spi, m_tx_buf, m_length, m_rx_buf, m_length));

        PICC_IsNewCardPresent();
      
      
    #if  0
        while (!spi_xfer_done)
        {
            __WFE();
        }

        NRF_LOG_FLUSH();
   #endif
        bsp_board_led_invert(BSP_BOARD_LED_0);
        nrf_delay_ms(200);
    }
}

my output :---(error)

<info> app: SPI example started.
<info> app: version:F
<info> app: TModeReg:80
<info> app: TPrescalerReg:A9
<info> app: TPrescalerReg:A9
<info> app: STATUS_TIMEOUT2
<info> app: result:3               
<info> app: STATUS_TIMEOUT2
<info> app: result:3

I have used the same libarary attached in the above case

Case ID: 241550
I am getting "Timeoout in communication" error even though i have placed the rfid id card continously on the scanner #define STATUS_OK (0x00)// Success
#define STATUS_ERROR (0x01)// Error in communication
#define STATUS_COLLISION (0x02)// Collission detected
#define STATUS_TIMEOUT (0x03)// Timeout in communication. As per the data sheet and library

[quote userid="82611" url="~/f/nordic-q-a/55860/need-mfrc522-c-library-for-nrf52833/235367#235367"]

My write function:

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

void WriteRegister(uint8_t addr, uint8_t val) {
uint8_t m_tx_buf[2];
m_tx_buf[0] = (addr << 1) & 0x7E;
m_tx_buf[1] = val;
spi_xfer_done = false;

nrf_drv_spi_transfer(&spi,&m_tx_buf[0], 2, NULL, 0);

while (!spi_xfer_done)
{
__WFE();
}
NRF_LOG_FLUSH();

}

static void spi_event_handler(nrf_drv_spi_evt_t const * p_event,
void * p_context)
{
spi_xfer_done = true;

}

And in maid loop you wating spi_xfer_done .

[/quote][quote userid="82611" url="~/f/nordic-q-a/55860/need-mfrc522-c-library-for-nrf52833/226755#226755"]rue.a [/quote]

PLEASE anyone help me out i have been working on the same from past two weeks i have checked the hardware functionalities of the MFRC522 it is in working condition and i am having 2 rfid scanners in both also same issue please help me out..

If possible share the complete code

RE: Need MFRC522 C library for NRF52833 ???

S S — Tue, 25 Feb 2020 05:48:05 GMT

okie thanks

RE: Need MFRC522 C library for NRF52833 ???

Le Phuong — Tue, 25 Feb 2020 05:45:08 GMT

I am using above code.

RE: Need MFRC522 C library for NRF52833 ???

S S — Thu, 20 Feb 2020 09:16:35 GMT

Hi sir,

can you share recent used code, please

RE: Need MFRC522 C library for NRF52833 ???

Le Phuong — Thu, 20 Feb 2020 09:14:01 GMT

My function PCD_WriteRegister(PCD_Register reg, byte value) is work.
Firt, I think you test with this function. If it's work good then orther fuinction

My write function:

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

void WriteRegister(uint8_t addr, uint8_t val) {
uint8_t m_tx_buf[2];
m_tx_buf[0] = (addr << 1) & 0x7E;
m_tx_buf[1] = val;
spi_xfer_done = false;

nrf_drv_spi_transfer(&spi,&m_tx_buf[0], 2, NULL, 0);

while (!spi_xfer_done)
{
__WFE();
}
NRF_LOG_FLUSH();

}

static void spi_event_handler(nrf_drv_spi_evt_t const * p_event,
void * p_context)
{
spi_xfer_done = true;

}

And in maid loop you wating spi_xfer_done .

RE: Need MFRC522 C library for NRF52833 ???

S S — Thu, 20 Feb 2020 05:35:20 GMT

Same like you, we can't read and write register and it's couldn't able to display any register and please list important functions to be called in the program?

RE: Need MFRC522 C library for NRF52833 ???

Le Phuong — Wed, 19 Feb 2020 02:39:48 GMT

what is your problem?

RE: Need MFRC522 C library for NRF52833 ???

S S — Tue, 18 Feb 2020 11:55:57 GMT

any one have some steps or procedure for the mfrc522 with nrf52 modules

RE: Need MFRC522 C library for NRF52833 ???

S S — Mon, 17 Feb 2020 06:51:50 GMT

Could you share the fixed codes for reference please

RE: Need MFRC522 C library for NRF52833 ???

Le Phuong — Mon, 23 Dec 2019 16:26:49 GMT

Hi, i had fixed.
Read and write function is true.a Orther my funtion is wrong (((:
Sorry.

RE: Need MFRC522 C library for NRF52833 ???

Jared — Mon, 23 Dec 2019 09:38:29 GMT

Hi,

Where exactly is the code stuck?
Are you able to build the project without any warnings or errors?
Which SDK version are you using?

regards

Jared