RE: Cannot read data on Block Mifare 1K card data using MFRC522 module and nRF52DK?

Sigurd Hellesvik — Tue, 04 Mar 2025 15:12:47 GMT

Hi,

[quote user=""]

I am currently facing an issue when trying to read data from a block of a Mifare 1K card.

[/quote]

Have you been able to use any other SPI commands on the card? Or is this the first one, and it fails?

Regards,
Sigurd Hellesvik

RE: Cannot read data on Block Mifare 1K card data using MFRC522 module and nRF52DK?

akaza-2349 — Mon, 24 Feb 2025 09:32:35 GMT

TM_MFRC522_STS_T MFRC522_Authenticate(uint8_t auth_mode, uint8_t block_addr, uint8_t *key, uint8_t *uid)
{

	TM_MFRC522_STS_T status;
	uint16_t recvBits;
	uint8_t i;
	uint8_t buff[12];

	//Verify the command block address + sector + password + card serial number
	buff[0] = auth_mode;
	buff[1] = block_addr;
	for (i = 0; i < 6; i++) {
		buff[i + 2] = *(key + i);
	}
	for (i = 0; i < 4; i++) {
		buff[i + 8] = *(uid + i);
	}
	status = TM_MFRC522_ToCard(PCD_AUTHENT, buff, 12, buff, &recvBits);
	k_sleep(K_MSEC(100));
	printk("------------------Status: 0x%02X", status);
	TM_MFRC522_RdReg(MFRC522_REG_STATUS2);
	if ((status != MI_OK)
			|| (!(TM_MFRC522_RdReg(MFRC522_REG_STATUS2) & 0x08))) {
		status = MI_ERR;
	}

	return status;
}