How to read and write MIFARE Ultralight pages with PN7150

owenl · ‎04-25-2023

I am looking for the command sequence to read/write MIFARE Ultralight pages with a PN7150. I'm struggling with the PN7150 user manual - I see a sequence diagram for MIFARE Classic (with authentication) but not for the MIFARE Ultralight. Can anyone enlighten me or point to some sample code.

(The DH is a micro-controller running FreeRTOS)

owenl · ‎04-26-2023

Answering myself. Something along the lines of:

uint8_t ReadPage[] = {0x00, 0x00, 0x02, 0x30, page};

esp_err_t err = i2c_manager_write(port_, deviceAddress_, I2C_NO_REG, ReadPage, sizeof(ReadPage));

Send the 3 byte header and 2 byte payload - (0x30 == READ cmd) and page number. Then handle the returned CORE_CONN_CREDITS_NTF followed by the NCI_DATA_MSG response containing 16 bytes starting from the page address.

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owenl · ‎04-26-2023

Answering myself. Something along the lines of:

uint8_t ReadPage[] = {0x00, 0x00, 0x02, 0x30, page};

esp_err_t err = i2c_manager_write(port_, deviceAddress_, I2C_NO_REG, ReadPage, sizeof(ReadPage));

Send the 3 byte header and 2 byte payload - (0x30 == READ cmd) and page number. Then handle the returned CORE_CONN_CREDITS_NTF followed by the NCI_DATA_MSG response containing 16 bytes starting from the page address.