I am trying to communicate with NRF52832 on MRFC522 vscode. My Write and Read functions are not working

[damar]

Below I have my read and write functions. Are my SPI configuration settings correct? I want to read the RFID card ID value.

MAİN.C

#include <zephyr/drivers/gpio.h>

#include <zephyr/drivers/SPi.h>
#include "MRFC522.h"



/* The devicetree node identifier for the "led0" alias. */
#define LED0_NODE DT_ALIAS(led0)
uint8_t ID[5];
/*
 * A build error on this line means your board is unsupported.
 * See the sample documentation for information on how to fix this.
 */
static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(LED0_NODE, gpios);

int main(void)
{
	int ret;
SPI_Init();
TM_MFRC522_Init();
	if (!gpio_is_ready_dt(&led)) {
		return 0;
	}

	ret = gpio_pin_configure_dt(&led, GPIO_OUTPUT_ACTIVE);
	if (ret < 0) {
		return 0;
	}

	while (1) {

    if ((TM_MFRC522_Check(ID) == MI_OK))
	{
		gpio_pin_toggle_dt(&led);
printk(" [%02x%02x%02x%02x%02x]\n\r\n", ID[0], ID[1], ID[2], ID[3], ID[4]);
	}

	
	
	}
	return 0;
}

[damar]

Hello everyone, I fixed it. I shared the code that works on mfrc522, nrf52832 and zephyr. Those who want can examine it. thanks.

github.com/.../MFRC522-NRF52

[Edvin]

Great to hear! And thank you for sharing, in case anyone else encounters similar issues with this sensor.

Best regards,

Edvin

[Ekmekci]

Good job Dear Merve :)

[akaza-2349]

Dear damar

Thank you for providing the sample. I was able to read the UID of the card based on what you provided.

My current issue is that I cannot read the data in the blocks of the card.

Hardware: nRF52DK, MFRC522, MIFARE 1K.

Function Read data on Block 6

void ReadBlock6(uint8_t *cardUID)
{
    uint8_t defaultKeyA[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
    uint8_t buffer[16] = {0};
    printf("cardUID: %02X-%02x-%02x-%02x \n", cardUID[0], cardUID[1], cardUID[2], cardUID[3]);
    if (TM_MFRC522_Auth(PICC_AUTHENT1A, 6, defaultKeyA, cardUID) == MI_OK)
    {
        TM_MFRC522_ReadBlock(6, buffer);
    }
    else
    {
        printf("[ERROR] Khong the doc block 6 do loi authen\n");
    }
}
uint8_t TM_MFRC522_Auth(uint8_t authMode, uint8_t blockAddr, uint8_t *sectorKey, uint8_t *cardUID)
{
    uint8_t buff[12];

    buff[0] = authMode;  // Loại xác thực (PICC_AUTHENT1A hoặc PICC_AUTHENT1B)
    buff[1] = blockAddr; // Block cần xác thực

    // Copy key 6 byte
    for (uint8_t i = 0; i < 6; i++)
    {
        buff[i + 2] = sectorKey[i];
    }

    // Copy UID (4 byte)
    for (uint8_t i = 0; i < 4; i++)
    {
        buff[i + 8] = cardUID[i];
    }

    // Gửi lệnh đến thẻ
    uint8_t status = 1;
    printk("buff: %X-%X-%X-%X-%X-%X-%X-%X-%X-%X-%X-%X\n", buff[0], buff[1], buff[2], buff[3], 
        buff[4], buff[5], buff[6], buff[7], buff[8], buff[9], buff[10], buff[11]);
    status = TM_MFRC522_ToCard(PCD_AUTHENT, buff, 12, NULL, NULL);
    printk("Authen status: %d\n", status);
    if (status != MI_OK)
    {
        printf("[ERROR] Authen that bai block %d\n", blockAddr);
    }
    else
    {
        printf("[INFO] Authen thanh cong block %d\n", blockAddr);
    }

    return status;
}

TM_MFRC522_STS_T TM_MFRC522_ReadBlock(uint8_t blockAddr, uint8_t *buffer)
{
    TM_MFRC522_STS_T status;
    uint8_t sendData[2];
    uint16_t recvLen;

    printf("[INFO] Dang doc du lieu tu block: %d\n", blockAddr);

    sendData[0] = PICC_READ; // Lenh doc block
    sendData[1] = 6;         // Dia chi block can doc

    printf("[DEBUG] Gui lenh doc: 0x%02X 0x%02X\n", sendData[0], sendData[1]);

    // Gui lenh doc block den the
    status = TM_MFRC522_ToCard(PCD_TRANSCEIVE, sendData, 2, buffer, &recvLen);

    if (status != MI_OK)
    {
        printf("[ERROR] Khong the doc block %d!\n", blockAddr);
        return MI_ERR;
    }

    if (recvLen != (MFRC522_MAX_LEN + 2))
    {
        printf("[ERROR] So byte nhan duoc khong dung! Nhan: %d, Ky vong: %d\n", recvLen, MFRC522_MAX_LEN + 2);
        return MI_ERR;
    }

    printf("[INFO] Du lieu tu block %d: ", blockAddr);
    for (int i = 0; i < MFRC522_MAX_LEN; i++)
    {
        printf("%02X ", buffer[i]);
    }
    printf("\n");

    return MI_OK;
}

 

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