Resolved! ST25R3916B
Hi,I have question for ST25R3916BI am only using the ST25R3916B chip on its own. I have successfully set up SPI communication for reading and writing. Now, I need to understand how I can read from ST25TV02K data.
Forum Posts
Resolved! ST25R95 Jumps out of IDLE without tag - Custom Hardware
I am working off of Custom Hardware using the ST25R95 and I can read tags but I am trying to keep the device into IDLE mode but can't get it to work.I have ran tag detect calibration without a tag in the field and came up with a result of 0x5C. (See ...
Resolved! NFC. memory M24LR 64 ER
I would like to know if the M24LR 64 ER memory using NFC already has support for IOsxx. I am trying to read and write data to this memory but without success, I receive errors 100 and 103.
Resolved! ST25R3916 - Auxiliary definition register - nfc_n<1:0>, value = 512, unit: /fc?
Hello, I have a question on the value of nfc_n<1:0> of the Auxiliary definition register.The following tables talk about the field value, could you please explain further what is the meaningof the value 512 in Table 14?Is my interpretation as shown b...
Resolved! Odd errors when using mailbox mode with a ST25DV04K tag
attn @Brian TIDAL et alI have yet another issue I don't understand. I have code that I have run against two similar products using the same ST25DV04K tag. The products differ in that one has a slower CPU clock. On the product with the faster clock, m...
Resolved! the write speed is too slow when writing date into Half-duplex 256 bytes dedicated buffer
hello sir I am using the fast transmission mode of the nfc chip ST25DV04KC to transmit picture data. The NFC chip is used with the MCU of STM32G071G8U6. When I write the 25KB picture data through the mobile APP into the NFC cache, I find that ...
Resolved! Framing error when attempting fast-read-mailbox-dynamic-control
Dear all,I'm attempting to use fast transfer mode with a ST25RDV04K type 5 tag and the STEVAL board for 3916B. I know this theoretically works because I have some Java code that is able to do it successfully, but I'm porting the code and I keep runni...
Resolved! What is the correct way to update AAT_A and AAT_B values in Analog Config table
I'm new to ST25R2916B programming and the RFAL NFC library. I'm currently writing board bring-up firmware and would like to know the correct way of updating the AAT A/B values in both the CHIP_INIT and POLL_COMMON modes of the Analog Config table whi...
Resolved! RFAL field off
Hi, I have configured an LED for RF field status in the rfal_plafrom.h.The LED switches on when rfalNfcDiscover() is called. But the LED does not switch off when the rfalNfcDeactivate(RFAL_NFC_DEACTIVATE_IDLE); function is called. This function retur...
Resolved! ST25R3911B NFC reader without Crystal
Hi, we are using an ST25R3911B NFC reader. Is it possible to drive this chip without a crystal, and use a generated clock source instead (coming from an MCU)? We found the following article on your forum: https://community.st.com/t5/st25-nfc-rfid-tag...