The external antenna being read is circular (32mm in diameter). During use the external antenna will be within 6in from the reader/writer circuit I am creating.
Hello all,I have an issue with CR95HF chip that it cannot return more than 62 data bytes (after deducting control and CRC bytes ) . The FiFo buffer should contain about 256 bytes.I am using STM8 and i have my own implementation . The issue happens w...
Hello!I'm trying to develop my own PCB. Now I'm drawing an electrical scheme.Now, I'm watching "X-CUBE NFC05A1" electrical scheme (LINK).I have two questions:1) Is there any other document how to draw electrical scheme for st25r3911B chip?2) If I don...
Hello, We used ST25R3912 for design NFC. Oscillator input capable of operating with 13.56MHz or 27.12 MHz crystal with fast start-up in datasheet ST25R3912. But in my design we have source clock 19.2MHz. Can we use clock 19.2MHz replace clock 13.56MH...
If I perform like a stupid User (write Tag and before the message is published i remove it from the Tag), I am able to get an error message from the NFC-Tag. It's something like "Tag I/O-Error" or "Tag I/O-Error, Tag is not ndef". So if this happens ...
I've realised that the GPO doesn't drive the PIN low, after I published a Message. I've read in your Datasheet that it Needs a "UpdateBinary command execution" (GPO is driven low after a delay (1) following the beginning of the correspondent UpdateB...
Hi Everyone,I'm designing an application with the ST25R95. It has several pins that are labeled as "NC".To improve the PCBA lay-out, particularly the GND plane under the IC, I want to connect as many as possible pins to GND. My Question:Can the "NC" ...
I downloaded the software pack en.x-cube-nfc3.zip for the nucleo NFC-03A1.I tried to import the demo STM32F401RE_NUCLEO_PollingTagDetectNdef.If I do a normal import into workspace, the imported project contains only link to non existing files.I can i...
Hi , We want to design the Antenna for NFC Reader IC ST25TV02K , so any reference design available for Antenna Designing ? What is the recommended Impedance or more specifically inductance for the antenna ?
Hi,I recently downloaded the latest version of the en.STSW-ST25RFAL001: v2.2.0/22-May-2020. In my application I had been using an older version of the en.STSW-ST25RFAL001. However in the Release notes for en.STSW-ST25RFAL001: v2.2.0/22-May-2020, ther...