I2C_TransferSeq_TypeDef Struct Reference

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

#include <em_i2c.h>

Data Fields

uint16_t addr
Address to use after (repeated) start.
uint16_t flags
Flags defining sequence type and details, see I2C_FLAG_ defines.
struct {
uint8_t * data
Buffer used for data to transmit/receive, must be len long.
uint16_t len
Number of bytes in data to send or receive.
} buf [2]
Buffers used to hold data to send from or receive into, depending on sequence type.

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):

Field Documentation

addr

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

flags

uint16_t I2C_TransferSeq_TypeDef::flags

Flags defining sequence type and details, see I2C_FLAG_ defines.

data

uint8_t* I2C_TransferSeq_TypeDef::data

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

len