LOW LEVEL Private Functions

Functions
uint32_t	BSP_GetVersion (void)
	This method returns the STM32L475E IOT01 BSP Driver revision.
void	BSP_LED_Init (Led_TypeDef Led)
	Configures LEDs.
void	BSP_LED_DeInit (Led_TypeDef Led)
	DeInit LEDs.
void	BSP_LED_On (Led_TypeDef Led)
	Turns selected LED On.
void	BSP_LED_Off (Led_TypeDef Led)
	Turns selected LED Off.
void	BSP_LED_Toggle (Led_TypeDef Led)
	Toggles the selected LED.
void	BSP_PB_Init (Button_TypeDef Button, ButtonMode_TypeDef ButtonMode)
	Configures button GPIO and EXTI Line.
void	BSP_PB_DeInit (Button_TypeDef Button)
	Push Button DeInit.
uint32_t	BSP_PB_GetState (Button_TypeDef Button)
	Returns the selected button state.
void	BSP_COM_Init (COM_TypeDef COM, UART_HandleTypeDef *huart)
	Configures COM port.
void	BSP_COM_DeInit (COM_TypeDef COM, UART_HandleTypeDef *huart)
	DeInit COM port.
static void	I2Cx_MspInit (I2C_HandleTypeDef *i2c_handler)
	Initializes I2C MSP.
static void	I2Cx_MspDeInit (I2C_HandleTypeDef *i2c_handler)
	DeInitializes I2C MSP.
static void	I2Cx_Init (I2C_HandleTypeDef *i2c_handler)
	Initializes I2C HAL.
static void	I2Cx_DeInit (I2C_HandleTypeDef *i2c_handler)
	DeInitializes I2C HAL.
static HAL_StatusTypeDef	I2Cx_ReadMultiple (I2C_HandleTypeDef *i2c_handler, uint8_t Addr, uint16_t Reg, uint16_t MemAddress, uint8_t *Buffer, uint16_t Length)
	Reads multiple data.
static HAL_StatusTypeDef	I2Cx_WriteMultiple (I2C_HandleTypeDef *i2c_handler, uint8_t Addr, uint16_t Reg, uint16_t MemAddress, uint8_t *Buffer, uint16_t Length)
	Writes a value in a register of the device through BUS in using DMA mode.
static HAL_StatusTypeDef	I2Cx_IsDeviceReady (I2C_HandleTypeDef *i2c_handler, uint16_t DevAddress, uint32_t Trials)
	Checks if target device is ready for communication.
static void	I2Cx_Error (I2C_HandleTypeDef *i2c_handler, uint8_t Addr)
	Manages error callback by re-initializing I2C.

---

Function Documentation

void BSP_COM_DeInit	(	COM_TypeDef	COM,
		UART_HandleTypeDef *	huart
	)

DeInit COM port.

Parameters:

COM,:	COM port to be configured. This parameter can be one of the following values: COM1
huart,:	Pointer to a UART_HandleTypeDef structure that contains the configuration information for the specified USART peripheral.

Definition at line 345 of file stm32l475e_iot01.c.

References COM_USART, and DISCOVERY_COMx_CLK_DISABLE.

void BSP_COM_Init	(	COM_TypeDef	COM,
		UART_HandleTypeDef *	huart
	)

Configures COM port.

Parameters:

COM,:	COM port to be configured. This parameter can be one of the following values: COM1
huart,:	Pointer to a UART_HandleTypeDef structure that contains the configuration information for the specified USART peripheral.

Definition at line 307 of file stm32l475e_iot01.c.

References COM_RX_AF, COM_RX_PIN, COM_RX_PORT, COM_TX_AF, COM_TX_PIN, COM_TX_PORT, COM_USART, DISCOVERY_COMx_CLK_ENABLE, DISCOVERY_COMx_RX_GPIO_CLK_ENABLE, and DISCOVERY_COMx_TX_GPIO_CLK_ENABLE.

uint32_t BSP_GetVersion

(

void

)

This method returns the STM32L475E IOT01 BSP Driver revision.

Return values:

version,:

0xXYZR (8bits for each decimal, R for RC)

Definition at line 149 of file stm32l475e_iot01.c.

References __STM32L475E_IOT01_BSP_VERSION.

void BSP_LED_DeInit

(

Led_TypeDef

Led

)

DeInit LEDs.

Parameters:

Led,:

LED to be configured. This parameter can be one of the following values: LED2

Definition at line 180 of file stm32l475e_iot01.c.

References GPIO_PIN, and GPIO_PORT.

void BSP_LED_Init

(

Led_TypeDef

Led

)

Configures LEDs.

Parameters:

Led,:

LED to be configured. This parameter can be one of the following values: LED2

Definition at line 160 of file stm32l475e_iot01.c.

References GPIO_PIN, GPIO_PORT, and LEDx_GPIO_CLK_ENABLE.

void BSP_LED_Off

(

Led_TypeDef

Led

)

Turns selected LED Off.

Parameters:

Led,:

LED to be set off This parameter can be one of the following values: LED2

Definition at line 209 of file stm32l475e_iot01.c.

References GPIO_PIN, and GPIO_PORT.

void BSP_LED_On

(

Led_TypeDef

Led

)

Turns selected LED On.

Parameters:

Led,:

LED to be set on This parameter can be one of the following values: LED2

Definition at line 198 of file stm32l475e_iot01.c.

References GPIO_PIN, and GPIO_PORT.

void BSP_LED_Toggle

(

Led_TypeDef

Led

)

Toggles the selected LED.

Parameters:

Led,:

LED to be toggled This parameter can be one of the following values: LED2

Definition at line 220 of file stm32l475e_iot01.c.

References GPIO_PIN, and GPIO_PORT.

void BSP_PB_DeInit

(

Button_TypeDef

Button

)

Push Button DeInit.

Parameters:

Button,:

Button to be configured This parameter can be one of the following values: BUTTON_WAKEUP: Wakeup Push Button

Note:

PB DeInit does not disable the GPIO clock

Definition at line 277 of file stm32l475e_iot01.c.

References BUTTON_IRQn, BUTTON_PIN, and BUTTON_PORT.

uint32_t BSP_PB_GetState

(

Button_TypeDef

Button

)

Returns the selected button state.

Parameters:

Button,:

Button to be checked This parameter can be one of the following values: BUTTON_WAKEUP: Wakeup Push Button

Return values:

The	Button GPIO pin value (GPIO_PIN_RESET = button pressed)

Definition at line 294 of file stm32l475e_iot01.c.

References BUTTON_PIN, and BUTTON_PORT.

void BSP_PB_Init	(	Button_TypeDef	Button,
		ButtonMode_TypeDef	ButtonMode
	)

Configures button GPIO and EXTI Line.

Parameters:

Button,:	Button to be configured This parameter can be one of the following values: BUTTON_WAKEUP: Wakeup Push Button
ButtonMode,:	Button mode This parameter can be one of the following values: BUTTON_MODE_GPIO: Button will be used as simple IO BUTTON_MODE_EXTI: Button will be connected to EXTI line with interrupt generation capability

Definition at line 236 of file stm32l475e_iot01.c.

References BUTTON_IRQn, BUTTON_MODE_EXTI, BUTTON_MODE_GPIO, BUTTON_PIN, BUTTON_PORT, and USER_BUTTON_GPIO_CLK_ENABLE.

static void I2Cx_DeInit

(

I2C_HandleTypeDef *

i2c_handler

)

[static]

DeInitializes I2C HAL.

Parameters:

i2c_handler

: I2C handler

Return values:

None

Definition at line 458 of file stm32l475e_iot01.c.

References I2Cx_MspDeInit().

Referenced by SENSOR_IO_DeInit().

static void I2Cx_Error	(	I2C_HandleTypeDef *	i2c_handler,
		uint8_t	Addr
	)		[static]

Manages error callback by re-initializing I2C.

Parameters:

i2c_handler	: I2C handler
Addr,:	I2C Address

Return values:

None

Definition at line 534 of file stm32l475e_iot01.c.

References I2Cx_Init().

Referenced by I2Cx_ReadMultiple(), and I2Cx_WriteMultiple().

static void I2Cx_Init

(

I2C_HandleTypeDef *

i2c_handler

)

[static]

Initializes I2C HAL.

Parameters:

i2c_handler

: I2C handler

Return values:

None

Configure Analogue filter

Definition at line 433 of file stm32l475e_iot01.c.

References DISCOVERY_I2Cx, and I2Cx_MspInit().

Referenced by I2Cx_Error(), and SENSOR_IO_Init().

static HAL_StatusTypeDef I2Cx_IsDeviceReady	(	I2C_HandleTypeDef *	i2c_handler,
		uint16_t	DevAddress,
		uint32_t	Trials
	)		[static]

Checks if target device is ready for communication.

Note:

This function is used with Memory devices

Parameters:

i2c_handler	: I2C handler
DevAddress,:	Target device address
Trials,:	Number of trials

Return values:

HAL

status

Definition at line 523 of file stm32l475e_iot01.c.

Referenced by SENSOR_IO_IsDeviceReady().

static void I2Cx_MspDeInit

(

I2C_HandleTypeDef *

i2c_handler

)

[static]

DeInitializes I2C MSP.

Parameters:

i2c_handler

: I2C handler

Return values:

None

Definition at line 414 of file stm32l475e_iot01.c.

References DISCOVERY_I2Cx_CLK_DISABLE, DISCOVERY_I2Cx_SCL_PIN, DISCOVERY_I2Cx_SCL_SDA_GPIO_CLK_DISABLE, DISCOVERY_I2Cx_SCL_SDA_GPIO_PORT, and DISCOVERY_I2Cx_SDA_PIN.

Referenced by I2Cx_DeInit().

static void I2Cx_MspInit

(

I2C_HandleTypeDef *

i2c_handler

)

[static]

Initializes I2C MSP.

Parameters:

i2c_handler

: I2C handler

Return values:

None

Definition at line 372 of file stm32l475e_iot01.c.

References DISCOVERY_I2Cx_CLK_ENABLE, DISCOVERY_I2Cx_ER_IRQn, DISCOVERY_I2Cx_EV_IRQn, DISCOVERY_I2Cx_FORCE_RESET, DISCOVERY_I2Cx_RELEASE_RESET, DISCOVERY_I2Cx_SCL_PIN, DISCOVERY_I2Cx_SCL_SDA_AF, DISCOVERY_I2Cx_SCL_SDA_GPIO_CLK_ENABLE, DISCOVERY_I2Cx_SCL_SDA_GPIO_PORT, and DISCOVERY_I2Cx_SDA_PIN.

Referenced by I2Cx_Init().

static HAL_StatusTypeDef I2Cx_ReadMultiple	(	I2C_HandleTypeDef *	i2c_handler,
		uint8_t	Addr,
		uint16_t	Reg,
		uint16_t	MemAddress,
		uint8_t *	Buffer,
		uint16_t	Length
	)		[static]

Reads multiple data.

Parameters:

i2c_handler	: I2C handler
Addr,:	I2C address
Reg,:	Reg address
MemAddress,:	memory address
Buffer,:	Pointer to data buffer
Length,:	Length of the data

Return values:

HAL

status

Definition at line 474 of file stm32l475e_iot01.c.

References I2Cx_Error().

Referenced by SENSOR_IO_Read(), and SENSOR_IO_ReadMultiple().

static HAL_StatusTypeDef I2Cx_WriteMultiple	(	I2C_HandleTypeDef *	i2c_handler,
		uint8_t	Addr,
		uint16_t	Reg,
		uint16_t	MemAddress,
		uint8_t *	Buffer,
		uint16_t	Length
	)		[static]

Writes a value in a register of the device through BUS in using DMA mode.

Parameters:

i2c_handler	: I2C handler
Addr,:	Device address on BUS Bus.
Reg,:	The target register address to write
MemAddress,:	memory address
Buffer,:	The target register value to be written
Length,:	buffer size to be written

Return values:

HAL

status

Definition at line 500 of file stm32l475e_iot01.c.

References I2Cx_Error().

Referenced by SENSOR_IO_Write(), and SENSOR_IO_WriteMultiple().