Master mode transfer message structure used to define a complete I2C transfer sequence (from start to stop).

The structure allows for defining the following types of sequences (refer to defines for sequence details):

I2C_FLAG_READ - Data read into buf[0].data
I2C_FLAG_WRITE - Data written from buf[0].data
I2C_FLAG_WRITE_READ - Data written from buf[0].data and read into buf[1].data
I2C_FLAG_WRITE_WRITE - Data written from buf[0].data and buf[1].data

Definition at line 244 of file em_i2c.h .

#include < em_i2c.h >

Data Fields
uint16_t	addr
	Address to use after (repeated) start.

struct {
uint8_t * data

uint16_t len

}	buf [2]

uint16_t	flags

Field Documentation

uint16_t I2C_TransferSeq_TypeDef::addr

Address to use after (repeated) start.

Layout details, A = Address bit, X = don't care bit (set to 0):

7 bit address - Use format AAAA AAAX
10 bit address - Use format XXXX XAAX AAAA AAAA

Definition at line 253 of file em_i2c.h .

Referenced by CCS811_getMeasurement() , CCS811_getRawData() , CCS811_readMailbox() , CCS811_setEnvData() , CCS811_setMeasureMode() , CCS811_softwareReset() , controllerRead() , EEPROM_AckPoll() , EEPROM_Read() , EEPROM_Write() , I2C_Transfer() , SI1133_registerBlockRead() , SI1133_registerBlockWrite() , SI1133_registerRead() , SI1133_registerWrite() , Si1147_Read_Block_Register() , Si1147_Read_Register() , Si1147_Write_Block_Register() , Si1147_Write_Register() , Si114x_i2c_smbus_read_byte_data() , Si114x_i2c_smbus_read_i2c_block_data() , Si114x_i2c_smbus_write_byte_data() , Si114x_i2c_smbus_write_i2c_block_data() , Si7013_Detect() , Si7013_GetFirmwareRevision() , SI7021_cmdRead() , SI7021_cmdWrite() , SI7210_registerRead() , SI7210_registerWrite() , SI7210_wakeUp() , Si72xx_Read_Register() , Si72xx_WakeUpAndIdle() , Si72xx_Write_Register() , sl_efpdrv_read_register() , sl_efpdrv_write_register() , TEMPSENS_RegisterGet() , and TEMPSENS_RegisterSet() .

struct { ... } I2C_TransferSeq_TypeDef::buf[2]

Buffers used to hold data to send from or receive into, depending on sequence type.

Referenced by CCS811_getMeasurement() , CCS811_getRawData() , CCS811_readMailbox() , CCS811_setEnvData() , CCS811_setMeasureMode() , CCS811_softwareReset() , controllerRead() , EEPROM_AckPoll() , EEPROM_Read() , EEPROM_Write() , I2C_Transfer() , I2C_TransferInit() , SI1133_registerBlockRead() , SI1133_registerBlockWrite() , SI1133_registerRead() , SI1133_registerWrite() , Si1147_Read_Block_Register() , Si1147_Read_Register() , Si1147_Write_Block_Register() , Si1147_Write_Register() , Si114x_i2c_smbus_read_byte_data() , Si114x_i2c_smbus_read_i2c_block_data() , Si114x_i2c_smbus_write_byte_data() , Si114x_i2c_smbus_write_i2c_block_data() , Si7013_Detect() , Si7013_GetFirmwareRevision() , SI7021_cmdRead() , SI7021_cmdWrite() , SI7210_registerRead() , SI7210_registerWrite() , SI7210_wakeUp() , Si72xx_Read_Register() , Si72xx_WakeUpAndIdle() , Si72xx_Write_Register() , TEMPSENS_RegisterGet() , and TEMPSENS_RegisterSet() .

uint8_t* I2C_TransferSeq_TypeDef::data

Buffer used for data to transmit/receive, must be len long.

Definition at line 264 of file em_i2c.h .

Referenced by CCS811_getMeasurement() , CCS811_getRawData() , CCS811_readMailbox() , CCS811_setEnvData() , CCS811_setMeasureMode() , CCS811_softwareReset() , controllerRead() , EEPROM_AckPoll() , EEPROM_Read() , EEPROM_Write() , I2C_Transfer() , SI1133_registerBlockRead() , SI1133_registerBlockWrite() , SI1133_registerRead() , SI1133_registerWrite() , Si1147_Read_Block_Register() , Si1147_Read_Register() , Si1147_Write_Block_Register() , Si1147_Write_Register() , Si114x_i2c_smbus_read_byte_data() , Si114x_i2c_smbus_read_i2c_block_data() , Si114x_i2c_smbus_write_byte_data() , Si114x_i2c_smbus_write_i2c_block_data() , Si7013_Detect() , Si7013_GetFirmwareRevision() , SI7021_cmdRead() , SI7021_cmdWrite() , SI7210_registerRead() , SI7210_registerWrite() , SI7210_wakeUp() , Si72xx_Read_Register() , Si72xx_WakeUpAndIdle() , Si72xx_Write_Register() , TEMPSENS_RegisterGet() , and TEMPSENS_RegisterSet() .

uint16_t I2C_TransferSeq_TypeDef::flags

Flags defining sequence type and details, see I2C_FLAG_ defines.

Definition at line 256 of file em_i2c.h .

Referenced by CCS811_getMeasurement() , CCS811_getRawData() , CCS811_readMailbox() , CCS811_setEnvData() , CCS811_setMeasureMode() , CCS811_softwareReset() , controllerRead() , EEPROM_AckPoll() , EEPROM_Read() , EEPROM_Write() , I2C_Transfer() , I2C_TransferInit() , SI1133_registerBlockRead() , SI1133_registerBlockWrite() , SI1133_registerRead() , SI1133_registerWrite() , Si1147_Read_Block_Register() , Si1147_Read_Register() , Si1147_Write_Block_Register() , Si1147_Write_Register() , Si114x_i2c_smbus_read_byte_data() , Si114x_i2c_smbus_read_i2c_block_data() , Si114x_i2c_smbus_write_byte_data() , Si114x_i2c_smbus_write_i2c_block_data() , Si7013_Detect() , Si7013_GetFirmwareRevision() , SI7021_cmdRead() , SI7021_cmdWrite() , SI7210_registerRead() , SI7210_registerWrite() , SI7210_wakeUp() , Si72xx_Read_Register() , Si72xx_WakeUpAndIdle() , Si72xx_Write_Register() , TEMPSENS_RegisterGet() , and TEMPSENS_RegisterSet() .

uint16_t I2C_TransferSeq_TypeDef::len

Number of bytes in data to send or receive. Notice that when receiving data to this buffer, at least 1 byte must be received. Setting len to 0 in the receive case is considered a usage fault. Transmitting 0 bytes is legal, in which case only the address is transmitted after the start condition.

Definition at line 273 of file em_i2c.h .

Referenced by CCS811_getMeasurement() , CCS811_getRawData() , CCS811_readMailbox() , CCS811_setEnvData() , CCS811_setMeasureMode() , CCS811_softwareReset() , controllerRead() , EEPROM_AckPoll() , EEPROM_Read() , EEPROM_Write() , I2C_Transfer() , I2C_TransferInit() , SI1133_registerBlockRead() , SI1133_registerBlockWrite() , SI1133_registerRead() , SI1133_registerWrite() , Si1147_Read_Block_Register() , Si1147_Read_Register() , Si1147_Write_Block_Register() , Si1147_Write_Register() , Si114x_i2c_smbus_read_byte_data() , Si114x_i2c_smbus_read_i2c_block_data() , Si114x_i2c_smbus_write_byte_data() , Si114x_i2c_smbus_write_i2c_block_data() , Si7013_Detect() , Si7013_GetFirmwareRevision() , SI7021_cmdRead() , SI7021_cmdWrite() , SI7210_registerRead() , SI7210_registerWrite() , SI7210_wakeUp() , Si72xx_Read_Register() , Si72xx_WakeUpAndIdle() , Si72xx_Write_Register() , TEMPSENS_RegisterGet() , and TEMPSENS_RegisterSet() .

The documentation for this struct was generated from the following file:

C:/cygwin/home/caamunds/work/super/platform/emlib/inc/ em_i2c.h

I2C_TransferSeq_TypeDef Struct ReferenceEMLIB > I2C

Data Fields

Field Documentation