STM32F769I_DISCOVERY LOW LEVEL

Modules
	STM32F769I Discovery Low Level Private Typedef
	LOW_LEVEL Private Defines
	LOW_LEVEL Private Macros
	LOW_LEVEL Private Variables
	LOW_LEVEL Private FunctionPrototypes
	BSP Public Functions
	STM32F769I_DISCOVERY_LOW_LEVEL Private Functions
	STM32F769I Discovery Low Level Exported Types
Functions
void	AUDIO_IO_Write (uint8_t Addr, uint16_t Reg, uint16_t Value)
	Writes a single data.
uint16_t	AUDIO_IO_Read (uint8_t Addr, uint16_t Reg)
	Reads a single data.
void	AUDIO_IO_Delay (uint32_t Delay)
	AUDIO Codec delay.
HAL_StatusTypeDef	EEPROM_IO_WriteData (uint16_t DevAddress, uint16_t MemAddress, uint8_t *pBuffer, uint32_t BufferSize)
	Write data to I2C EEPROM driver in using DMA channel.
HAL_StatusTypeDef	EEPROM_IO_ReadData (uint16_t DevAddress, uint16_t MemAddress, uint8_t *pBuffer, uint32_t BufferSize)
	Read data from I2C EEPROM driver in using DMA channel.
HAL_StatusTypeDef	EEPROM_IO_IsDeviceReady (uint16_t DevAddress, uint32_t Trials)
	Checks if target device is ready for communication.
void	TS_IO_Init (void)
	Initializes Touchscreen low level.
void	TS_IO_Write (uint8_t Addr, uint8_t Reg, uint8_t Value)
	Writes a single data.
uint8_t	TS_IO_Read (uint8_t Addr, uint8_t Reg)
	Reads a single data.
uint16_t	TS_IO_ReadMultiple (uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length)
	Reads multiple data with I2C communication channel from TouchScreen.
void	TS_IO_WriteMultiple (uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length)
	Writes multiple data with I2C communication channel from MCU to TouchScreen.
void	TS_IO_Delay (uint32_t Delay)
	Delay function used in TouchScreen low level driver.
void	OTM8009A_IO_Delay (uint32_t Delay)
	OTM8009A delay.
void	HDMI_IO_Init (void)
	Initializes HDMI IO low level.
void	HDMI_IO_Write (uint8_t Addr, uint8_t Reg, uint8_t Value)
	HDMI writes single data.
uint8_t	HDMI_IO_Read (uint8_t Addr, uint8_t Reg)
	Reads single data with I2C communication channel from HDMI bridge.
void	HDMI_IO_Delay (uint32_t Delay)
	HDMI delay.

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Function Documentation

void AUDIO_IO_Delay

(

uint32_t

Delay

)

AUDIO Codec delay.

Parameters:

Delay,:

Delay in ms

Definition at line 611 of file stm32f769i_discovery.c.

uint16_t AUDIO_IO_Read	(	uint8_t	Addr,
		uint16_t	Reg
	)

Reads a single data.

Parameters:

Addr,:	I2C address
Reg,:	Reg address

Return values:

Data	to be read

Definition at line 592 of file stm32f769i_discovery.c.

References hI2cAudioHandler, and I2Cx_ReadMultiple().

void AUDIO_IO_Write	(	uint8_t	Addr,
		uint16_t	Reg,
		uint16_t	Value
	)

Writes a single data.

Parameters:

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

Return values:

None

Definition at line 575 of file stm32f769i_discovery.c.

References hI2cAudioHandler, and I2Cx_WriteMultiple().

HAL_StatusTypeDef EEPROM_IO_IsDeviceReady	(	uint16_t	DevAddress,
		uint32_t	Trials
	)

Checks if target device is ready for communication.

Note:

This function is used with Memory devices

Parameters:

DevAddress,:	Target device address
Trials,:	Number of trials

Return values:

HAL

status

Definition at line 659 of file stm32f769i_discovery.c.

References hI2cExtHandler, and I2Cx_IsDeviceReady().

Referenced by BSP_EEPROM_Init(), and BSP_EEPROM_WaitEepromStandbyState().

HAL_StatusTypeDef EEPROM_IO_ReadData	(	uint16_t	DevAddress,
		uint16_t	MemAddress,
		uint8_t *	pBuffer,
		uint32_t	BufferSize
	)

Read data from I2C EEPROM driver in using DMA channel.

Parameters:

DevAddress,:	Target device address
MemAddress,:	Internal memory address
pBuffer,:	Pointer to data buffer
BufferSize,:	Amount of data to be read

Return values:

HAL

status

Definition at line 647 of file stm32f769i_discovery.c.

References hI2cExtHandler, and I2Cx_ReadMultiple().

Referenced by BSP_EEPROM_ReadBuffer().

HAL_StatusTypeDef EEPROM_IO_WriteData	(	uint16_t	DevAddress,
		uint16_t	MemAddress,
		uint8_t *	pBuffer,
		uint32_t	BufferSize
	)

Write data to I2C EEPROM driver in using DMA channel.

Parameters:

DevAddress,:	Target device address
MemAddress,:	Internal memory address
pBuffer,:	Pointer to data buffer
BufferSize,:	Amount of data to be sent

Return values:

HAL

status

Definition at line 634 of file stm32f769i_discovery.c.

References hI2cExtHandler, and I2Cx_WriteMultiple().

Referenced by BSP_EEPROM_WritePage().

void HDMI_IO_Delay

(

uint32_t

Delay

)

HDMI delay.

Parameters:

Delay,:

Delay in ms

Return values:

None

Definition at line 793 of file stm32f769i_discovery.c.

Referenced by LCD_IO_GetID().

void HDMI_IO_Init

(

void

)

Initializes HDMI IO low level.

Return values:

None

Definition at line 755 of file stm32f769i_discovery.c.

References hI2cAudioHandler, and I2Cx_Init().

Referenced by LCD_IO_GetID().

uint8_t HDMI_IO_Read	(	uint8_t	Addr,
		uint8_t	Reg
	)

Reads single data with I2C communication channel from HDMI bridge.

Parameters:

Addr,:	I2C address
Reg,:	Register address

Return values:

Read

data

Definition at line 779 of file stm32f769i_discovery.c.

References hI2cAudioHandler, and I2Cx_ReadMultiple().

Referenced by LCD_IO_GetID().

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

HDMI writes single data.

Parameters:

Addr,:	I2C address
Reg,:	Register address
Value,:	Data to be written

Return values:

None

Definition at line 767 of file stm32f769i_discovery.c.

References hI2cAudioHandler, and I2Cx_WriteMultiple().

void OTM8009A_IO_Delay

(

uint32_t

Delay

)

OTM8009A delay.

Parameters:

Delay,:

Delay in ms

Definition at line 745 of file stm32f769i_discovery.c.

void TS_IO_Delay

(

uint32_t

Delay

)

Delay function used in TouchScreen low level driver.

Parameters:

Delay,:

Delay in ms

Return values:

None

Definition at line 735 of file stm32f769i_discovery.c.

void TS_IO_Init

(

void

)

Initializes Touchscreen low level.

Return values:

None

Definition at line 670 of file stm32f769i_discovery.c.

References hI2cAudioHandler, and I2Cx_Init().

uint8_t TS_IO_Read	(	uint8_t	Addr,
		uint8_t	Reg
	)

Reads a single data.

Parameters:

Addr,:	I2C address
Reg,:	Reg address

Return values:

Data	to be read

Definition at line 693 of file stm32f769i_discovery.c.

References hI2cAudioHandler, and I2Cx_ReadMultiple().

uint16_t TS_IO_ReadMultiple	(	uint8_t	Addr,
		uint8_t	Reg,
		uint8_t *	Buffer,
		uint16_t	Length
	)

Reads multiple data with I2C communication channel from TouchScreen.

Parameters:

Addr,:	I2C address
Reg,:	Register address
Buffer,:	Pointer to data buffer
Length,:	Length of the data

Return values:

Number

of read data

Definition at line 711 of file stm32f769i_discovery.c.

References hI2cAudioHandler, and I2Cx_ReadMultiple().

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

Writes a single data.

Parameters:

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

Return values:

None

Definition at line 682 of file stm32f769i_discovery.c.

References hI2cAudioHandler, and I2Cx_WriteMultiple().

void TS_IO_WriteMultiple	(	uint8_t	Addr,
		uint8_t	Reg,
		uint8_t *	Buffer,
		uint16_t	Length
	)

Writes multiple data with I2C communication channel from MCU to TouchScreen.

Parameters:

Addr,:	I2C address
Reg,:	Register address
Buffer,:	Pointer to data buffer
Length,:	Length of the data

Return values:

None

Definition at line 725 of file stm32f769i_discovery.c.

References hI2cAudioHandler, and I2Cx_WriteMultiple().