04-25-2023
09:08 PM
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owenl
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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)
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04-26-2023
10:39 PM
2,122 Views
owenl
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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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04-26-2023
10:39 PM
2,123 Views
owenl
Contributor I
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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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