STM324x9I EVAL IO Exported Functions

Functions
uint8_t	BSP_IO_Init (void)
	Initializes and configures the IO functionalities and configures all necessary hardware resources (GPIOs, clocks..).
uint8_t	BSP_IO_ITGetStatus (uint16_t IO_Pin)
	Gets the selected pins IT status.
void	BSP_IO_ITClear (void)
	Clears all the IO IT pending bits.
uint8_t	BSP_IO_ConfigPin (uint16_t IO_Pin, IO_ModeTypedef IO_Mode)
	Configures the IO pin(s) according to IO mode structure value.
void	BSP_IO_WritePin (uint16_t IO_Pin, uint8_t PinState)
	Sets the selected pins state.
uint16_t	BSP_IO_ReadPin (uint16_t IO_Pin)
	Gets the selected pins current state.
void	BSP_IO_TogglePin (uint16_t IO_Pin)
	Toggles the selected pins state.

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Function Documentation

uint8_t BSP_IO_ConfigPin	(	uint16_t	IO_Pin,
		IO_ModeTypedef	IO_Mode
	)

Configures the IO pin(s) according to IO mode structure value.

Parameters:

IO_Pin,:	IO pin(s) to be configured. This parameter can be one of the following values: STMPE1600_PIN_x: where x can be from 0 to 15.
IO_Mode,:	IO pin mode to configure This parameter can be one of the following values: IO_MODE_INPUT IO_MODE_OUTPUT IO_MODE_IT_RISING_EDGE IO_MODE_IT_FALLING_EDGE

Return values:

IO_OK

if all initializations are OK. Other value if error.

Definition at line 192 of file stm324x9i_eval_io.c.

References io_driver, IO_I2C_ADDRESS, and IO_OK.

Referenced by BSP_CAMERA_Init(), BSP_CAMERA_Stop(), BSP_JOY_Init(), BSP_SD_ITConfig(), and BSP_TS_ITConfig().

uint8_t BSP_IO_Init

(

void

)

Initializes and configures the IO functionalities and configures all necessary hardware resources (GPIOs, clocks..).

Note:

BSP_IO_Init() is using HAL_Delay() function to ensure that stmpe1600 IO Expander is correctly reset. HAL_Delay() function provides accurate delay (in milliseconds) based on variable incremented in SysTick ISR. This implies that if BSP_IO_Init() is called from a peripheral ISR process, then the SysTick interrupt must have higher priority (numerically lower) than the peripheral interrupt. Otherwise the caller ISR process will be blocked.

Return values:

IO_OK

if all initializations are OK. Other value if error.

Definition at line 138 of file stm324x9i_eval_io.c.

References io_driver, IO_ERROR, IO_I2C_ADDRESS, IO_OK, and IO_PIN_ALL.

Referenced by BSP_CAMERA_Init(), BSP_CAMERA_Stop(), BSP_JOY_Init(), BSP_SD_Init(), and BSP_TS_ITConfig().

void BSP_IO_ITClear

(

void

)

Clears all the IO IT pending bits.

Definition at line 173 of file stm324x9i_eval_io.c.

References io_driver, and IO_I2C_ADDRESS.

Referenced by BSP_SD_DetectIT(), and BSP_TS_ITClear().

uint8_t BSP_IO_ITGetStatus

(

uint16_t

IO_Pin

)

Gets the selected pins IT status.

Parameters:

IO_Pin,:

Selected pins to check the status. This parameter can be any combination of the IO pins.

Return values:

IO_OK

if read status OK. Other value if error.

Definition at line 164 of file stm324x9i_eval_io.c.

References io_driver, and IO_I2C_ADDRESS.

uint16_t BSP_IO_ReadPin

(

uint16_t

IO_Pin

)

Gets the selected pins current state.

Parameters:

IO_Pin,:

Selected pins to read. This parameter can be any combination of the IO pins.

Return values:

The	current pins state

Definition at line 218 of file stm324x9i_eval_io.c.

References io_driver, and IO_I2C_ADDRESS.

Referenced by BSP_CAMERA_Init(), BSP_JOY_GetState(), and BSP_SD_IsDetected().

void BSP_IO_TogglePin

(

uint16_t

IO_Pin

)

Toggles the selected pins state.

Parameters:

IO_Pin,:

Selected pins to toggle. This parameter can be any combination of the IO pins.

Definition at line 228 of file stm324x9i_eval_io.c.

References io_driver, and IO_I2C_ADDRESS.

void BSP_IO_WritePin	(	uint16_t	IO_Pin,
		uint8_t	PinState
	)

Sets the selected pins state.

Parameters:

IO_Pin,:	Selected pins to write. This parameter can be any combination of the IO pins.
PinState,:	New pins state to write

Definition at line 206 of file stm324x9i_eval_io.c.

References io_driver, and IO_I2C_ADDRESS.

Referenced by BSP_CAMERA_Init(), and BSP_CAMERA_Stop().