Initialization and Configuration functions. More...

Collaboration diagram for SmartCard Initialization and de-initialization functions:

Functions
HAL_StatusTypeDef	HAL_SMARTCARD_Init (SMARTCARD_HandleTypeDef *hsc)
	Initializes the SmartCard mode according to the specified parameters in the SMARTCARD_InitTypeDef and create the associated handle.

HAL_StatusTypeDef	HAL_SMARTCARD_ReInit (SMARTCARD_HandleTypeDef *hsc)

HAL_StatusTypeDef	HAL_SMARTCARD_DeInit (SMARTCARD_HandleTypeDef *hsc)
	DeInitializes the USART SmartCard peripheral.

void	HAL_SMARTCARD_MspInit (SMARTCARD_HandleTypeDef *hsc)
	SMARTCARD MSP Init.

void	HAL_SMARTCARD_MspDeInit (SMARTCARD_HandleTypeDef *hsc)
	SMARTCARD MSP DeInit.

Detailed Description

Initialization and Configuration functions.

  ==============================================================================
              ##### Initialization and Configuration functions #####
  ==============================================================================
  [..]
  This subsection provides a set of functions allowing to initialize the USART
  in Smartcard mode.
  [..]
  The Smartcard interface is designed to support asynchronous protocol Smartcards as
  defined in the ISO 7816-3 standard.
  [..]
  The USART can provide a clock to the smartcard through the SCLK output.
  In smartcard mode, SCLK is not associated to the communication but is simply derived
  from the internal peripheral input clock through a 5-bit prescaler.
  [..]
  (+) For the Smartcard mode only these parameters can be configured:
      (++) Baud Rate
      (++) Word Length => Should be 9 bits (8 bits + parity)
      (++) Stop Bit
      (++) Parity: => Should be enabled
      (++) USART polarity
      (++) USART phase
      (++) USART LastBit
      (++) Receiver/transmitter modes
      (++) Prescaler
      (++) GuardTime
      (++) NACKState: The Smartcard NACK state

     (+) Recommended SmartCard interface configuration to get the Answer to Reset from the Card:
        (++) Word Length = 9 Bits
        (++) 1.5 Stop Bit
        (++) Even parity
        (++) BaudRate = 12096 baud
        (++) Tx and Rx enabled
  [..]
  Please refer to the ISO 7816-3 specification for more details.

  [..]
   (@) It is also possible to choose 0.5 stop bit for receiving but it is recommended
       to use 1.5 stop bits for both transmitting and receiving to avoid switching
       between the two configurations.
  [..]
    The HAL_SMARTCARD_Init() function follows the USART  SmartCard configuration
    procedures (details for the procedures are available in reference manual
    (RM0430 for STM32F4X3xx MCUs and RM0402 for STM32F412xx MCUs
     RM0383 for STM32F411xC/E MCUs and RM0401 for STM32F410xx MCUs
     RM0090 for STM32F4X5xx/STM32F4X7xx/STM32F429xx/STM32F439xx MCUs
     RM0390 for STM32F446xx MCUs and RM0386 for STM32F469xx/STM32F479xx MCUs)).

The SMARTCARD frame format is given in the following table: +----------------------------------------------------------—+ | M bit | PCE bit | SMARTCARD frame | |------------------—|------------------------------------—| | 1 | 1 | | SB | 8 bit data | PB | STB | | +----------------------------------------------------------—+