stm32h743i_eval_io.c File Reference

This file provides a set of functions needed to manage the IO pins on STM32H743I-EVAL evaluation board. More...

#include "stm32h743i_eval_io.h"

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Functions
uint8_t	BSP_IO_Init (void)
	Initializes and configures the IO functionalities and configures all necessary hardware resources (MFX, ...).
uint8_t	BSP_IO_DeInit (void)
	DeInit allows Mfx Initialization to be executed again.
uint32_t	BSP_IO_ITGetStatus (uint32_t IoPin)
	Gets the selected pins IT status.
void	BSP_IO_ITClear (void)
	Clears all the IO IT pending bits.
void	BSP_IO_ITClearPin (uint32_t IO_Pins_To_Clear)
	Clear only one or a selection of IO IT pending bits.
uint8_t	BSP_IO_ConfigPin (uint32_t IoPin, IO_ModeTypedef IoMode)
	Configures the IO pin(s) according to IO mode structure value.
uint8_t	BSP_IO_ConfigIrqOutPin (uint8_t IoIrqOutPinPolarity, uint8_t IoIrqOutPinType)
	Sets the IRQ_OUT pin polarity and type.
void	BSP_IO_WritePin (uint32_t IoPin, BSP_IO_PinStateTypeDef PinState)
	Sets the selected pins state.
uint32_t	BSP_IO_ReadPin (uint32_t IoPin)
	Gets the selected pins current state.
void	BSP_IO_TogglePin (uint32_t IoPin)
	Toggles the selected pins state.
Variables
static IO_DrvTypeDef *	IoDrv = NULL
static uint8_t	mfxstm32l152Identifier

---

Detailed Description

This file provides a set of functions needed to manage the IO pins on STM32H743I-EVAL evaluation board.

Author:

MCD Application Team

Version:

V1.0.0

Date:

21-April-2017

  How To use this driver:
  -----------------------
   - This driver is used to drive the IO module of the STM32H743I-EVAL evaluation
     board.
   - The MFXSTM32L152 IO expander device component driver must be included with this
     driver in order to run the IO functionalities commanded by the IO expander (MFX)
     device mounted on the evaluation board.

  Driver description:
  -------------------
  + Initialization steps:
     o Initialize the IO module using the BSP_IO_Init() function. This
       function includes the MSP layer hardware resources initialization and the
       communication layer configuration to start the IO functionalities use.

  + IO functionalities use
     o The IO pin mode is configured when calling the function BSP_IO_ConfigPin(), you
       must specify the desired IO mode by choosing the "IO_ModeTypedef" parameter
       predefined value.
     o If an IO pin is used in interrupt mode, the function BSP_IO_ITGetStatus() is
       needed to get the interrupt status. To clear the IT pending bits, you should
       call the function BSP_IO_ITClear() with specifying the IO pending bit to clear.
     o The IT is handled using the corresponding external interrupt IRQ handler,
       the user IT callback treatment is implemented on the same external interrupt
       callback.
     o The IRQ_OUT pin (common for all functionalities: JOY, SD, LEDs, etc)  can be
       configured using the function BSP_IO_ConfigIrqOutPin()
     o To get/set an IO pin combination state you can use the functions
       BSP_IO_ReadPin()/BSP_IO_WritePin() or the function BSP_IO_TogglePin() to toggle the pin
       state.
  

Attention:

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Definition in file stm32h743i_eval_io.c.