ST25 NFC/RFID tags and readers

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ST25R95 0x87 Response from SENDRECV

I am in the final stretch of my project using the ST25R95 with an ATTINY88.  I am working on custom hardware and not using libraries.I have all of the ST25R95 related commands working on my development setup with an Arduino UNO and X-NUCLEO-NFC03A1 b...

PDIhawk by Associate III
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  • 4 replies
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Resolved! ST25R95 Jumps out of IDLE without tag

Using my Arduino UNO and X-NUCLEO-NFC03A1 with the ST25R95 I am having issues trying to stay in IDLE.For DacDataL and DacDataH, I have tried both the recommended 0x64 and 0x74 for the demo board and the 0x90 and 0xA0 that came from Tag Detection Cali...

PDIhawk by Associate III
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  • 7 replies
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Resolved! ST25R95 init process

Hi,In AN3433, Appendix B says "The Tag detection calibration process must be performed when the application is initialized".However in case that I don't use tag detector mode, I don't have to process the Tag detection calibration, do it?I want ST25R9...

Nkama by Associate II
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  • 1 replies
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Resolved! ST25R95 Tag Detect Calibration Problems

I am using the X-NUCLEO-NFC03A1 board with the ST25R95 and an Arduino UNO as the development hardware.  I am not using libraries but I can currently read personal data from an ISO14443-A tag.I believe I am on the final leg of my ST25R95 code and tryi...

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PDIhawk by Associate III
  • 210 Views
  • 9 replies
  • 0 kudos

ST25R95 Reading Tags

I am building on my Arduino based code for using the ST25R95.I have successfully received data from an ISO15693 tag but I don't understand what it is reporting or what the data means that I sent with the SendRecv command to read from the tag.  If it ...

PDIhawk by Associate III
  • 271 Views
  • 9 replies
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Resolved! ST25R95 Reboot Loop on Reading Tag

I have been working on getting my Arduino based code running using an Arduino UNO SMD and the X-NUCLEO-NFC03A1 with the ST25R95.I have good communication and can enable the ISO15693 protocol.My next step is to read a tag and have implemented a SendRe...

PDIhawk by Associate III
  • 170 Views
  • 4 replies
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Resolved! ST25R95 Tag Read UID sequence

I am developing a device that uses the ST25R95.  The end processor will be an ATTINY88 but for development purposes I am using an Arduino UNO and the X-NUCLEO development board.  I am developing the code in Arduino.  The main goal is to use the devic...

PDIhawk by Associate III
  • 394 Views
  • 8 replies
  • 3 kudos

Resolved! Multiplexing NFC antenna on CR95HF

Hello,I am using a CR95HF NFC transceiver and want to have the option to select one of two antennas in my design.I had protoyped this idea with some Skyworks RF mulitplexers and a CR95HF development kit, essentially tapping into where the antenna joi...

craig_orv_0-1706016737365.png craig_orv_0-1706089797928.png

Resolved! How do I get the register map of ST25R95 ?

I'm tring to detect tag infomation by ST25R95.Main board is STM32L476RG.I got the sample code from https://www.st.com/en/embedded-software/x-cube-nfc3.html.Example commands are descripted in the datasheet https://www.st.com/resource/en/datasheet/st25...

Nkama by Associate II
  • 302 Views
  • 8 replies
  • 2 kudos