STM32F429I DISCOVERY LOW LEVEL Private Functions

Functions
uint32_t	BSP_GetVersion (void)
	This method returns the STM32F429I DISCO BSP Driver revision.
void	BSP_LED_Init (Led_TypeDef Led)
	Configures LED GPIO.
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.
uint32_t	BSP_PB_GetState (Button_TypeDef Button)
	Returns the selected Button state.
static void	I2Cx_MspInit (I2C_HandleTypeDef *hi2c)
	I2Cx MSP Initialization.
static void	I2Cx_WriteData (uint8_t Addr, uint8_t Reg, uint8_t Value)
	Writes a value in a register of the device through BUS.
static void	I2Cx_WriteBuffer (uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length)
	Writes a value in a register of the device through BUS.
static uint8_t	I2Cx_ReadData (uint8_t Addr, uint8_t Reg)
	Reads a register of the device through BUS.
static uint8_t	I2Cx_ReadBuffer (uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length)
	Reads multiple data on the BUS.
static uint32_t	SPIx_Read (uint8_t ReadSize)
	Reads 4 bytes from device.
static void	SPIx_Write (uint16_t Value)
	Writes a byte to device.
static uint8_t	SPIx_WriteRead (uint8_t Byte)
	Sends a Byte through the SPI interface and return the Byte received from the SPI bus.
static void	SPIx_MspInit (SPI_HandleTypeDef *hspi)
	SPI MSP Init.
uint32_t	LCD_IO_ReadData (uint16_t RegValue, uint8_t ReadSize)
	Reads register value.
void	LCD_Delay (uint32_t Delay)
	Wait for loop in ms.
void	IOE_Write (uint8_t Addr, uint8_t Reg, uint8_t Value)
	IOE Writes single data operation.
uint8_t	IOE_Read (uint8_t Addr, uint8_t Reg)
	IOE Reads single data.
void	IOE_WriteMultiple (uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length)
	IOE Writes multiple data.
uint16_t	IOE_ReadMultiple (uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length)
	IOE Reads multiple data.
void	IOE_Delay (uint32_t Delay)
	IOE Delay.
void	GYRO_IO_Write (uint8_t *pBuffer, uint8_t WriteAddr, uint16_t NumByteToWrite)
	Writes one byte to the Gyroscope.
void	GYRO_IO_Read (uint8_t *pBuffer, uint8_t ReadAddr, uint16_t NumByteToRead)
	Reads a block of data from the Gyroscope.

---

Function Documentation

uint32_t BSP_GetVersion

(

void

)

This method returns the STM32F429I DISCO BSP Driver revision.

Return values:

version,:

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

Definition at line 180 of file stm32f429i_discovery.c.

References __STM32F429I_DISCO_BSP_VERSION.

void BSP_LED_Init

(

Led_TypeDef

Led

)

Configures LED GPIO.

Parameters:

Led,:

Specifies the Led to be configured. This parameter can be one of following parameters: LED3 LED4

Definition at line 192 of file stm32f429i_discovery.c.

References GPIO_PIN, GPIO_PORT, and LEDx_GPIO_CLK_ENABLE.

void BSP_LED_Off

(

Led_TypeDef

Led

)

Turns selected LED Off.

Parameters:

Led,:

Specifies the Led to be set off. This parameter can be one of following parameters: LED3 LED4

Definition at line 229 of file stm32f429i_discovery.c.

References GPIO_PIN, and GPIO_PORT.

void BSP_LED_On

(

Led_TypeDef

Led

)

Turns selected LED On.

Parameters:

Led,:

Specifies the Led to be set on. This parameter can be one of following parameters: LED3 LED4

Definition at line 217 of file stm32f429i_discovery.c.

References GPIO_PIN, and GPIO_PORT.

void BSP_LED_Toggle

(

Led_TypeDef

Led

)

Toggles the selected LED.

Parameters:

Led,:

Specifies the Led to be toggled. This parameter can be one of following parameters: LED3 LED4

Definition at line 241 of file stm32f429i_discovery.c.

References GPIO_PIN, and GPIO_PORT.

uint32_t BSP_PB_GetState

(

Button_TypeDef

Button

)

Returns the selected Button state.

Parameters:

Button,:

Specifies the Button to be checked. This parameter should be: BUTTON_KEY

Return values:

The	Button GPIO pin value.

Definition at line 293 of file stm32f429i_discovery.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,:	Specifies the Button to be configured. This parameter should be: BUTTON_KEY
ButtonMode,:	Specifies Button mode. This parameter can be one of following parameters: 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 256 of file stm32f429i_discovery.c.

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

void GYRO_IO_Read	(	uint8_t *	pBuffer,
		uint8_t	ReadAddr,
		uint16_t	NumByteToRead
	)

Reads a block of data from the Gyroscope.

Parameters:

pBuffer,:	Pointer to the buffer that receives the data read from the Gyroscope.
ReadAddr,:	Gyroscope's internal address to read from.
NumByteToRead,:	Number of bytes to read from the Gyroscope.

Definition at line 1028 of file stm32f429i_discovery.c.

References DUMMY_BYTE, GYRO_CS_HIGH, GYRO_CS_LOW, MULTIPLEBYTE_CMD, READWRITE_CMD, and SPIx_WriteRead().

void GYRO_IO_Write	(	uint8_t *	pBuffer,
		uint8_t	WriteAddr,
		uint16_t	NumByteToWrite
	)

Writes one byte to the Gyroscope.

Parameters:

pBuffer,:	Pointer to the buffer containing the data to be written to the Gyroscope.
WriteAddr,:	Gyroscope's internal address to write to.
NumByteToWrite,:	Number of bytes to write.

Definition at line 994 of file stm32f429i_discovery.c.

References GYRO_CS_HIGH, GYRO_CS_LOW, MULTIPLEBYTE_CMD, and SPIx_WriteRead().

static void I2Cx_MspInit

(

I2C_HandleTypeDef *

hi2c

)

[static]

I2Cx MSP Initialization.

Parameters:

hi2c,:

I2C handle

Definition at line 308 of file stm32f429i_discovery.c.

References DISCOVERY_I2Cx, DISCOVERY_I2Cx_CLOCK_ENABLE, DISCOVERY_I2Cx_ER_IRQn, DISCOVERY_I2Cx_EV_IRQn, DISCOVERY_I2Cx_FORCE_RESET, DISCOVERY_I2Cx_RELEASE_RESET, DISCOVERY_I2Cx_SCL_GPIO_CLK_ENABLE, DISCOVERY_I2Cx_SCL_GPIO_PORT, DISCOVERY_I2Cx_SCL_PIN, DISCOVERY_I2Cx_SCL_SDA_AF, DISCOVERY_I2Cx_SDA_GPIO_CLK_ENABLE, DISCOVERY_I2Cx_SDA_GPIO_PORT, DISCOVERY_I2Cx_SDA_PIN, and I2cHandle.

Referenced by I2Cx_Init().

static uint8_t I2Cx_ReadBuffer	(	uint8_t	Addr,
		uint8_t	Reg,
		uint8_t *	pBuffer,
		uint16_t	Length
	)		[static]

Reads multiple data on the BUS.

Parameters:

Addr,:	I2C Address
Reg,:	Reg Address
pBuffer,:	pointer to read data buffer
Length,:	length of the data

Return values:

0	if no problems to read multiple data

Definition at line 535 of file stm32f429i_discovery.c.

References I2cHandle, I2Cx_Error(), and I2cxTimeout.

Referenced by IOE_ReadMultiple().

static uint8_t I2Cx_ReadData	(	uint8_t	Addr,
		uint8_t	Reg
	)		[static]

Reads a register of the device through BUS.

Parameters:

Addr,:	Device address on BUS Bus.
Reg,:	The target register address to write

Return values:

Data	read at register address

Definition at line 510 of file stm32f429i_discovery.c.

References I2cHandle, I2Cx_Error(), and I2cxTimeout.

Referenced by IOE_Read().

static void I2Cx_WriteBuffer	(	uint8_t	Addr,
		uint8_t	Reg,
		uint8_t *	pBuffer,
		uint16_t	Length
	)		[static]

Writes a value in a register of the device through BUS.

Parameters:

Addr,:	Device address on BUS Bus.
Reg,:	The target register address to write
pBuffer,:	The target register value to be written
Length,:	buffer size to be written

Definition at line 490 of file stm32f429i_discovery.c.

References I2cHandle, I2Cx_Error(), and I2cxTimeout.

Referenced by IOE_WriteMultiple().

static void I2Cx_WriteData	(	uint8_t	Addr,
		uint8_t	Reg,
		uint8_t	Value
	)		[static]

Writes a value in a register of the device through BUS.

Parameters:

Addr,:	Device address on BUS Bus.
Reg,:	The target register address to write
Value,:	The target register value to be written

Definition at line 469 of file stm32f429i_discovery.c.

References I2cHandle, I2Cx_Error(), and I2cxTimeout.

Referenced by IOE_Write().

void IOE_Delay

(

uint32_t

Delay

)

IOE Delay.

Parameters:

Delay

in ms

Definition at line 951 of file stm32f429i_discovery.c.

uint8_t IOE_Read	(	uint8_t	Addr,
		uint8_t	Reg
	)

IOE Reads single data.

Parameters:

Addr,:	I2C Address
Reg,:	Reg Address

Return values:

The

read data

Definition at line 917 of file stm32f429i_discovery.c.

References I2Cx_ReadData().

uint16_t IOE_ReadMultiple	(	uint8_t	Addr,
		uint8_t	Reg,
		uint8_t *	pBuffer,
		uint16_t	Length
	)

IOE Reads multiple data.

Parameters:

Addr,:	I2C Address
Reg,:	Reg Address
pBuffer,:	pointer to data buffer
Length,:	length of the data

Return values:

0	if no problems to read multiple data

Definition at line 942 of file stm32f429i_discovery.c.

References I2Cx_ReadBuffer().

void IOE_Write	(	uint8_t	Addr,
		uint8_t	Reg,
		uint8_t	Value
	)

IOE Writes single data operation.

Parameters:

Addr,:	I2C Address
Reg,:	Reg Address
Value,:	Data to be written

Definition at line 906 of file stm32f429i_discovery.c.

References I2Cx_WriteData().

void IOE_WriteMultiple	(	uint8_t	Addr,
		uint8_t	Reg,
		uint8_t *	pBuffer,
		uint16_t	Length
	)

IOE Writes multiple data.

Parameters:

Addr,:	I2C Address
Reg,:	Reg Address
pBuffer,:	pointer to data buffer
Length,:	length of the data

Definition at line 929 of file stm32f429i_discovery.c.

References I2Cx_WriteBuffer().

void LCD_Delay

(

uint32_t

Delay

)

Wait for loop in ms.

Parameters:

Delay

in ms.

Definition at line 873 of file stm32f429i_discovery.c.

uint32_t LCD_IO_ReadData	(	uint16_t	RegValue,
		uint8_t	ReadSize
	)

Reads register value.

Parameters:

RegValue	Address of the register to read
ReadSize	Number of bytes to read

Return values:

Content

of the register value

Definition at line 846 of file stm32f429i_discovery.c.

References LCD_CS_HIGH, LCD_CS_LOW, LCD_WRX_HIGH, LCD_WRX_LOW, SPIx_Read(), and SPIx_Write().

static void SPIx_MspInit

(

SPI_HandleTypeDef *

hspi

)

[static]

SPI MSP Init.

Parameters:

hspi,:

SPI handle

Definition at line 743 of file stm32f429i_discovery.c.

References DISCOVERY_SPIx_AF, DISCOVERY_SPIx_CLK_ENABLE, DISCOVERY_SPIx_GPIO_CLK_ENABLE, DISCOVERY_SPIx_GPIO_PORT, DISCOVERY_SPIx_MISO_PIN, DISCOVERY_SPIx_MOSI_PIN, and DISCOVERY_SPIx_SCK_PIN.

Referenced by SPIx_Init().

static uint32_t SPIx_Read

(

uint8_t

ReadSize

)

[static]

Reads 4 bytes from device.

Parameters:

ReadSize,:

Number of bytes to read (max 4 bytes)

Return values:

Value

read on the SPI

Definition at line 672 of file stm32f429i_discovery.c.

References SpiHandle, SPIx_Error(), and SpixTimeout.

Referenced by LCD_IO_ReadData().

static void SPIx_Write

(

uint16_t

Value

)

[static]

Writes a byte to device.

Parameters:

Value,:

value to be written

Definition at line 693 of file stm32f429i_discovery.c.

References SpiHandle, SPIx_Error(), and SpixTimeout.

Referenced by LCD_IO_ReadData(), LCD_IO_WriteData(), and LCD_IO_WriteReg().

static uint8_t SPIx_WriteRead

(

uint8_t

Byte

)

[static]

Sends a Byte through the SPI interface and return the Byte received from the SPI bus.

Parameters:

Byte,:

Byte send.

Return values:

The	received byte value

Definition at line 713 of file stm32f429i_discovery.c.

References SpiHandle, SPIx_Error(), and SpixTimeout.

Referenced by GYRO_IO_Read(), and GYRO_IO_Write().