MFRC522-STM32Cube

A C++ STM32Cube library can handle MFRC522(or RC522 RFID module).

Based on code Dr.Leong ( WWW.B2CQSHOP.COM )
Created by Miguel Balboa (circuitito.com), Jan, 2012.
Rewritten by Soren Thing Andersen (access.thing.dk), fall of 2013 (Translation to English, refactored, comments, anti collision, cascade levels.)
Ported to mbed by Martin Olejar, Dec, 2013 mbed library
Ported to STM32Cube by _0x4d from Factoryal Laboratory, March, 2022.

Please Read Before Use

This library runs in blocking mode.
SPI instructions are not implemented using IT or DMA and also uses HAL_Delay().
Using in ISR is not recommended.

APIs

Constructor

MFRC522(SPI_HandleTypeDef* hspi, GPIO_TypeDef* cs_port, uint32_t cs_pin, GPIO_TypeDef* reset_port, uint32_t reset_pin);

where,

SPI_HandleTypeDef* hspi: Target SPI peripheral HandleTypeDef pointer.

GPIO_TypeDef* cs_port: Target GPIO port start address which MFRC522 SPI chip select pin has connected to.

uint32_t cs_pin: Target GPIO pin address offset which MFRC522 SPI chip select pin has connected to.

GPIO_TypeDef* reset_port: Target GPIO port start address which MFRC522 reset pin has connected to.

uint32_t reset_pin: Target GPIO pin address offset which MFRC522 reset pin has connected to.

Usage

If MFRC522 SPI bus is connected to SPI1, chip select pin connected to PA8, reset pin connected to PB7,

MFRC522(&hspi1, GPIOA, GPIO_PIN_8, GPIOB, GPIO_PIN_7);

If chip select pin and reset pin has named as MFRC522_CS, MFRC522_RESET on STM32Cube and auto-generated by,

MFRC522(&hspi1, MFRC522_CS_GPIO_Port, MFRC522_CS_Pin, MFRC522_RESET_GPIO_Port, MFRC522_RESET_PIN);

Others