Hardware I2C data types. More...

Data Structures
struct	gos_i2c_message_t
	Input/output message context used by gos_i2c_transfer() More...

struct	gos_i2c_device_t
	I2C peripheral context used by direct APIs. More...

Enumerations
enum	gos_i2c_address_width_t { GOS_I2C_7BIT , GOS_I2C_10BIT , GOS_I2C_16BIT }
	I2C address width. More...

enum	gos_i2c_flag_t { GOS_I2C_MSG_WRITE = (1 << 0 ), GOS_I2C_MSG_READ = (0 << 0 ), GOS_I2C_MSG_NO_STOP_SEQ = (1 << 1 ), GOS_I2C_MSG_STOP_SEQ = (0 << 1 ), GOS_I2C_MSG_READ_AFTER_WRITE = (1 << 2 ), GOS_I2C_MSG_NO_READ_AFTER_WRITE = (0 << 2 ), GOS_I2C_MSG_NO_START_SEQ = (1 << 3 ), GOS_I2C_MSG_START_SEQ = (0 << 3 ) }
	I2C message flags. More...

enum	gos_i2c_speed_t { GOS_I2C_CLOCK_LOW_SPEED = (101000), GOS_I2C_CLOCK_STANDARD_SPEED = (1001000), GOS_I2C_CLOCK_HIGH_SPEED = (400*1000) }
	I2C standard clock rates. More...

enum	gos_i2c_stream_flag_t { GOS_I2C_FLAG_STREAM_HEXIFY = (1 << 0) }
	Stream configure flags. More...

enum	gos_i2c_stream_write_flag_t { GOS_I2C_FLAG_STREAM_CONTINUED_WRITE = (1 << 0) }

enum	gos_i2c_t { GOS_I2C_0 , GOS_GPIO_MAX }

Detailed Description

Hardware I2C data types.

Enumeration Type Documentation

I2C address width.

Enumerator
GOS_I2C_7BIT	7-bit address length, this is the most common
GOS_I2C_10BIT	10-bit address
GOS_I2C_16BIT	16-bit address

I2C message flags.

Enumerator
GOS_I2C_MSG_WRITE	Write message, i.e. transfer from device to chip.
GOS_I2C_MSG_READ	Read messag, i.e. transfer from chip to device.
GOS_I2C_MSG_NO_STOP_SEQ	Do not issue 'stop' sequence after message, this is useful if multiple messages need to be transferred.
GOS_I2C_MSG_STOP_SEQ	Default, issue 'stop' sequence after message.
GOS_I2C_MSG_READ_AFTER_WRITE	Used if the next message after the current should read data.
GOS_I2C_MSG_NO_READ_AFTER_WRITE	Default, the next message after the current is not a read.
GOS_I2C_MSG_NO_START_SEQ	Do not issue a 'start' sequence at the beginning of this message.
GOS_I2C_MSG_START_SEQ	Default, issue a 'start' sequence at the beginning of this message.

I2C standard clock rates.

Stream configure flags.

Enumerator
GOS_I2C_FLAG_STREAM_HEXIFY	Convert input hex string to binary, output binary to hex string.

Write specific flags

Enumerator
GOS_I2C_FLAG_STREAM_CONTINUED_WRITE	continued write: if this flag is set then no stop condition will be sent after the write. This allows for issuing the write command multiple times

enum gos_i2c_t

Gecko OS I2C ID

Enumerator

GOS_I2C_0

This is just a placeholder, this is platform dependent.

GOS_GPIO_MAX

Maximum number of GPIOs the platform supports in Gecko OS.

Maximum number of I2Cs the platform supports in Gecko OS.