Exported_Functions

Functions
uint8_t	BSP_IO_Init (void)
	Initializes and configures the IO functionalities and configures all necessary hardware resources (GPIOs, clocks..).
uint32_t	BSP_IO_ITGetStatus (uint32_t IO_Pin)
	Gets the selected pins IT status.
void	BSP_IO_ITClear (uint32_t IO_Pin)
	Clears the selected IO IT pending bit.
uint8_t	BSP_IO_ConfigPin (uint32_t IO_Pin, IO_ModeTypedef IO_Mode)
	Configures the IO pin(s) according to IO mode structure value.
void	BSP_IO_WritePin (uint32_t IO_Pin, uint8_t PinState)
	Sets the selected pins state.
uint32_t	BSP_IO_ReadPin (uint32_t IO_Pin)
	Gets the selected pins current state.
void	BSP_IO_TogglePin (uint32_t IO_Pin)
	Toggles the selected pins state.

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Function Documentation

uint8_t BSP_IO_ConfigPin	(	uint32_t	IO_Pin,
		IO_ModeTypedef	IO_Mode
	)

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

Parameters:

IO_Pin,:	Output pin to be set or reset. This parameter can be any combination of the IO pins.
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 IO_MODE_IT_LOW_LEVEL IO_MODE_IT_HIGH_LEVEL

Return values:

IO_OK,:

if all initializations are OK. Other value if error.

Definition at line 259 of file stm3210c_eval_io.c.

References io1_driver, IO1_I2C_ADDRESS, IO1_PIN_ALL, IO1_PIN_OFFSET, io2_driver, IO2_I2C_ADDRESS, IO2_PIN_ALL, IO2_PIN_OFFSET, and IO_OK.

Referenced by ACCELERO_IO_ITConfig(), AUDIO_IO_Init(), and BSP_JOY_Init().

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 stmpe811 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 157 of file stm3210c_eval_io.c.

References io1_driver, IO1_I2C_ADDRESS, IO1_PIN_ALL, IO1_PIN_OFFSET, io2_driver, IO2_I2C_ADDRESS, IO2_PIN_ALL, IO2_PIN_OFFSET, IO_ERROR, and IO_OK.

Referenced by ACCELERO_IO_Init(), AUDIO_IO_Init(), and BSP_JOY_Init().

void BSP_IO_ITClear

(

uint32_t

IO_Pin

)

Clears the selected IO IT pending bit.

Parameters:

IO_Pin,:

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

Return values:

None

Definition at line 224 of file stm3210c_eval_io.c.

References io1_driver, IO1_I2C_ADDRESS, IO1_PIN_ALL, IO1_PIN_OFFSET, io2_driver, IO2_I2C_ADDRESS, IO2_PIN_ALL, and IO2_PIN_OFFSET.

uint32_t BSP_IO_ITGetStatus

(

uint32_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:

Status

of the checked IO pin(s).

Definition at line 194 of file stm3210c_eval_io.c.

References io1_driver, IO1_I2C_ADDRESS, IO1_PIN_ALL, IO1_PIN_OFFSET, io2_driver, IO2_I2C_ADDRESS, IO2_PIN_ALL, and IO2_PIN_OFFSET.

uint32_t BSP_IO_ReadPin

(

uint32_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 316 of file stm3210c_eval_io.c.

References io1_driver, IO1_I2C_ADDRESS, IO1_PIN_ALL, IO1_PIN_OFFSET, io2_driver, IO2_I2C_ADDRESS, IO2_PIN_ALL, and IO2_PIN_OFFSET.

Referenced by BSP_JOY_GetState().

void BSP_IO_TogglePin

(

uint32_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.

Return values:

None

Definition at line 346 of file stm3210c_eval_io.c.

References BSP_IO_WritePin(), io1_driver, IO1_I2C_ADDRESS, IO1_PIN_ALL, IO1_PIN_OFFSET, io2_driver, IO2_I2C_ADDRESS, IO2_PIN_ALL, and IO2_PIN_OFFSET.

void BSP_IO_WritePin	(	uint32_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

Return values:

None

Definition at line 289 of file stm3210c_eval_io.c.

References io1_driver, IO1_I2C_ADDRESS, IO1_PIN_ALL, IO1_PIN_OFFSET, io2_driver, IO2_I2C_ADDRESS, IO2_PIN_ALL, and IO2_PIN_OFFSET.

Referenced by AUDIO_IO_Init(), BSP_AUDIO_OUT_Stop(), and BSP_IO_TogglePin().