STM32L476G_EVAL BSP User Manual: Exported Functions

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 251 of file stm32l476g_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 BSP_LED_Init(), and LCD_IO_Init().

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 146 of file stm32l476g_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 BSP_LED_Init(), and LCD_IO_Init().

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 216 of file stm32l476g_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.

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 186 of file stm32l476g_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.

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 308 of file stm32l476g_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.

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 338 of file stm32l476g_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.

Referenced by BSP_LED_Toggle().

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 281 of file stm32l476g_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_IO_TogglePin(), BSP_LED_Init(), BSP_LED_Off(), BSP_LED_On(), and LCD_IO_Init().