STM32F072B-Discovery BSP User Manual: Bus Operations functions

STM32F072B Discovery BSP Drivers

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STM32F072B-Discovery BSP User Manual

Functions
static void	I2Cx_Init (void)
	Discovery I2Cx Bus initialization.
static uint32_t	I2Cx_WriteData (uint8_t Addr, uint16_t Reg, uint8_t Value)
	Write a value in a register of the device through BUS.
static uint32_t	I2Cx_WriteBuffer (uint8_t Addr, uint16_t Reg, uint8_t *pBuffer, uint16_t Length)
	Write a value in a register of the device through BUS.
static uint32_t	I2Cx_ReadData (uint8_t Addr, uint16_t Reg, uint8_t *Value)
	Read a register of the device through BUS.
static uint32_t	I2Cx_ReadBuffer (uint8_t Addr, uint16_t Reg, uint8_t *pBuffer, uint16_t Length)
	Reads multiple data on the BUS.
static void	I2Cx_Error (uint8_t Addr)
	Discovery I2Cx error treatment function.
static void	SPIx_Init (void)
	SPI1 Bus initialization.
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_Error (void)
	SPI1 error treatment function.
static void	SPIx_MspInit (SPI_HandleTypeDef *hspi)
	SPI MSP Init.
static void	I2Cx_MspInit (I2C_HandleTypeDef *hi2c)
	Discovery I2Cx MSP Initialization.

Function Documentation

static void I2Cx_Error ( uint8_t Addr ) [static]

Discovery I2Cx error treatment function.

Return values:

None

Definition at line 503 of file stm32f072b_discovery.c.

References I2cHandle, and I2Cx_Init().

Referenced by I2Cx_ReadBuffer(), I2Cx_ReadData(), I2Cx_WriteBuffer(), and I2Cx_WriteData().

static void I2Cx_Init ( void ) [static]

Discovery I2Cx Bus initialization.

Return values:

None

Definition at line 386 of file stm32f072b_discovery.c.

References DISCOVERY_I2Cx, DISCOVERY_I2Cx_TIMING, I2cHandle, and I2Cx_MspInit().

Referenced by EEPROM_IO_Init(), and I2Cx_Error().

static void I2Cx_MspInit ( I2C_HandleTypeDef * hi2c ) [static]

Discovery I2Cx MSP Initialization.

Parameters:

hi2c	I2C handle

Return values:

None

Definition at line 314 of file stm32f072b_discovery.c.

References DISCOVERY_EEPROM_DMA_CHANNEL_RX, DISCOVERY_EEPROM_DMA_CHANNEL_TX, DISCOVERY_EEPROM_DMA_CLK_ENABLE, DISCOVERY_EEPROM_DMA_PREPRIO, DISCOVERY_EEPROM_DMA_RX_IRQn, DISCOVERY_EEPROM_DMA_SUBPRIO, DISCOVERY_EEPROM_DMA_TX_IRQn, DISCOVERY_I2Cx_AF, DISCOVERY_I2Cx_CLK_ENABLE, DISCOVERY_I2Cx_GPIO_CLK_ENABLE, DISCOVERY_I2Cx_GPIO_PORT, DISCOVERY_I2Cx_SCL_PIN, and DISCOVERY_I2Cx_SDA_PIN.

Referenced by I2Cx_Init().

static uint32_t I2Cx_ReadBuffer	(	uint8_t	Addr,
		uint16_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 483 of file stm32f072b_discovery.c.

References I2cHandle, and I2Cx_Error().

Referenced by EEPROM_IO_ReadData().

static uint32_t I2Cx_ReadData	(	uint8_t	Addr,
		uint16_t	Reg,
		uint8_t *	Value
	)		`[static]`

Read a register of the device through BUS.

Parameters:

Addr	Device address on BUS
Reg	The target register address to read

Return values:

Value,: read register value

Definition at line 459 of file stm32f072b_discovery.c.

References I2cHandle, I2Cx_Error(), and I2Cx_TIMEOUT_MAX.

Referenced by EEPROM_IO_ReadData().

static uint32_t I2Cx_WriteBuffer	(	uint8_t	Addr,
		uint16_t	Reg,
		uint8_t *	pBuffer,
		uint16_t	Length
	)		`[static]`

Write 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

Return values:

None

Definition at line 437 of file stm32f072b_discovery.c.

References I2cHandle, and I2Cx_Error().

Referenced by EEPROM_IO_WriteData().

static uint32_t I2Cx_WriteData	(	uint8_t	Addr,
		uint16_t	Reg,
		uint8_t	Value
	)		`[static]`

Write 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

Return values:

None

Definition at line 413 of file stm32f072b_discovery.c.

References I2cHandle, I2Cx_Error(), and I2Cx_TIMEOUT_MAX.

Referenced by EEPROM_IO_WriteData().

static void SPIx_Error ( void ) [static]

SPI1 error treatment function.

Return values:

None

Definition at line 573 of file stm32f072b_discovery.c.

References SpiHandle, and SPIx_Init().

Referenced by SPIx_WriteRead().

static void SPIx_Init ( void ) [static]

SPI1 Bus initialization.

Return values:

None

Definition at line 519 of file stm32f072b_discovery.c.

References DISCOVERY_SPIx, SpiHandle, and SPIx_MspInit().

Referenced by GYRO_IO_Init(), and SPIx_Error().

static void SPIx_MspInit ( SPI_HandleTypeDef * hspi ) [static]

SPI MSP Init.

Parameters:

hspi	SPI handle

Return values:

None

Definition at line 588 of file stm32f072b_discovery.c.

References DISCOVERY_SPIx_AF, DISCOVERY_SPIx_CLOCK_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 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 553 of file stm32f072b_discovery.c.

References SpiHandle, SPIx_Error(), and SpixTimeout.

Referenced by GYRO_IO_Read(), and GYRO_IO_Write().

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