https://github.com/pguyot/cr14

STMicroelectronics CR14 Driver for Linux
https://github.com/pguyot/cr14

linux-driver nabaztag raspbian rfid-reader

Last synced: 11 months ago
JSON representation

STMicroelectronics CR14 Driver for Linux

• Host: GitHub
• URL: https://github.com/pguyot/cr14
• Owner: pguyot
• License: other
• Created: 2020-02-09T20:38:05.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2024-05-06T06:23:18.000Z (almost 2 years ago)
• Last Synced: 2025-03-17T17:04:08.277Z (11 months ago)
• Topics: linux-driver, nabaztag, raspbian, rfid-reader
• Language: C
• Size: 65.4 KB
• Stars: 6
• Watchers: 2
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# CR14 RFID reader driver for Linux (Raspbian)

[![GitHub Super-Linter](https://github.com/pguyot/cr14/actions/workflows/super-linter.yml/badge.svg)](https://github.com/marketplace/actions/super-linter)

[![ARM Runner](https://github.com/pguyot/cr14/actions/workflows/arm-runner.yml/badge.svg)](https://github.com/marketplace/actions/arm-runner)

[![Codacy](https://app.codacy.com/project/badge/Grade/dcee41ebf0a9416182d54051edfe8b5f)](https://www.codacy.com/gh/pguyot/cr14/dashboard)

## Datasheet and technical documents

Chipset:

- [CR14](https://datasheet.octopart.com/CR14-MQP/1GE-STMicroelectronics-datasheet-10836722.pdf)

PICC:

- [SRIX4K](http://www.orangetags.com/wp-content/downloads/datasheet/STM/srix4k.pdf)

- [SRI512](https://www.advanide.de/wp-content/uploads/products/rfid/SRI512.pdf)

- [SRT512](https://www.advanide.de/wp-content/uploads/products/rfid/SRT512.pdf)

- [SRI4K](https://www.advanide.de/wp-content/uploads/products/rfid/SRI4K.pdf)

- [SRI2K](https://www.advanide.de/wp-content/uploads/products/rfid/SRI2K.pdf)

- [ST25TB512-AC](https://www.st.com/resource/en/datasheet/st25tb512-ac.pdf)

- [ST25TB04K](https://www.st.com/resource/en/datasheet/st25tb04k.pdf)

- [ST25TB512-AT](https://www.st.com/resource/en/datasheet/st25tb512-at.pdf)

- [ST25TB02K](https://www.st.com/resource/en/datasheet/st25tb02k.pdf)

This driver may be compatible with CRX14 as well.

Tested with CR14 and SRI512/SRT512 PICCs.

## Installation

Install requirements

    sudo apt-get install raspberrypi-kernel-headers

Clone source code.

    git clone https://github.com/pguyot/cr14

Compile and install with

    cd cr14

    make

    sudo make install

Makefile will automatically edit /boot/config.txt and add/enable if required

the following params and overlays:

    dtparam=i2c_arm=on

    dtoverlay=cr14

You might want to review changes before rebooting.

Reboot.

## Interface

Driver creates device /dev/rfid0

Several modes are available, see the sample Python scripts in examples.

Simplest mode consists in opening device read-only. The CR14 will be polled

every 0.5 second, printing detected tag UIDs preceeded by 'u' (UIDs are printed

in little endian, LSB first).

More complex interactions are possible by opening device r/w and sending

commands, for example to read or write EEPROM.