STM32469I_EVAL BSP User Manual: STM32469I EVAL IO Exported Functions

STM32469I EVAL BSP Drivers

previous page next page
STM32469I_EVAL BSP User Manual
Functions
STM32469I EVAL IO Exported Functions
STM32469I EVAL IO

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_DeInit (void)
 DeInit allows Mfx Inititialization to be executed again.
uint32_t BSP_IO_ITGetStatus (uint32_t IO_Pin)
 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 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, BSP_IO_PinStateTypeDef 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.

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,:IO pin(s) to be configured. This parameter can be one of the following values:
  • MFXSTM32L152_GPIO_PIN_x: where x can be from 0 to 23.
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
  • IO_MODE_ANALOG
  • IO_MODE_OFF
  • IO_MODE_INPUT_PU,
  • IO_MODE_INPUT_PD,
  • IO_MODE_OUTPUT_OD,
  • IO_MODE_OUTPUT_OD_PU,
  • IO_MODE_OUTPUT_OD_PD,
  • IO_MODE_OUTPUT_PP,
  • IO_MODE_OUTPUT_PP_PU,
  • IO_MODE_OUTPUT_PP_PD,
  • IO_MODE_IT_RISING_EDGE_PU
  • IO_MODE_IT_FALLING_EDGE_PU
  • IO_MODE_IT_LOW_LEVEL_PU
  • IO_MODE_IT_HIGH_LEVEL_PU
  • IO_MODE_IT_RISING_EDGE_PD
  • IO_MODE_IT_FALLING_EDGE_PD
  • IO_MODE_IT_LOW_LEVEL_PD
  • IO_MODE_IT_HIGH_LEVEL_PD
Return values:
IO_OKif all initializations are OK. Other value if error.

Definition at line 236 of file stm32469i_eval_io.c.

References IO_I2C_ADDRESS, IO_OK, and IoDrv.

Referenced by BSP_CAMERA_HwReset(), BSP_CAMERA_PwrDown(), BSP_LED_DeInit(), BSP_LED_Init(), BSP_SD_DeInit(), BSP_SD_Init(), BSP_SD_IsDetected(), BSP_SD_MspInit(), and BSP_TS_ITConfig().

uint8_t BSP_IO_DeInit ( void  )

DeInit allows Mfx Inititialization to be executed again.

Note:
BSP_IO_Init() has no effect if the IoDrv is already initialized BSP_IO_DeInit() allows to erase the pointer such to allow init to be effective
Return values:
IO_OK

Definition at line 166 of file stm32469i_eval_io.c.

References IO_OK, and IoDrv.

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 MFXSTM32L152 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_OKif all initializations are OK. Other value if error.

Definition at line 138 of file stm32469i_eval_io.c.

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

Referenced by BSP_CAMERA_Init(), BSP_LED_Init(), BSP_SD_Init(), and BSP_TS_ITConfig().

void BSP_IO_ITClear ( void  )

Clears all the IO IT pending bits.

Definition at line 187 of file stm32469i_eval_io.c.

References IO_I2C_ADDRESS, and IoDrv.

void BSP_IO_ITClearPin ( uint32_t  IO_Pins_To_Clear)

Clear only one or a selection of IO IT pending bits.

Parameters:
IO_Pins_To_Clear: MFX IRQ status IO pin to clear (or combination of several IOs)

Definition at line 197 of file stm32469i_eval_io.c.

References IO_I2C_ADDRESS, and IoDrv.

Referenced by BSP_TS_ITClear().

uint32_t BSP_IO_ITGetStatus ( uint32_t  IoPin)

Gets the selected pins IT status.

Parameters:
IoPin,:Selected pins to check the status. This parameter can be any combination of the IO pins.
Return values:
IO_OKif read status OK. Other value if error.

Definition at line 178 of file stm32469i_eval_io.c.

References IO_I2C_ADDRESS, and IoDrv.

Referenced by BSP_TS_ITGetStatus().

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:
Thecurrent pins state

Definition at line 262 of file stm32469i_eval_io.c.

References IO_I2C_ADDRESS, and IoDrv.

Referenced by BSP_CAMERA_Init(), and BSP_SD_IsDetected().

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.
Note:
This function is only used to toggle one pin in the same time

Definition at line 273 of file stm32469i_eval_io.c.

References IO_I2C_ADDRESS, and IoDrv.

Referenced by BSP_LED_Toggle().

void BSP_IO_WritePin ( uint32_t  IO_Pin,
BSP_IO_PinStateTypeDef  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 250 of file stm32469i_eval_io.c.

References IO_I2C_ADDRESS, and IoDrv.

Referenced by BSP_CAMERA_HwReset(), BSP_CAMERA_PwrDown(), BSP_LED_Init(), BSP_LED_Off(), BSP_LED_On(), and BSP_SD_MspInit().

Generated on Tue Jan 12 2016 17:51:25 for STM32469I_EVAL BSP User Manual by   doxygen 1.7.6.1
previous page start next page