Defines common types and structures for the I2C Hardware Abstraction Layer (HAL). More...

#include <stddef.h>
#include <stdint.h>
#include "nhal_common.h"

Data Structures
struct	nhal_i2c_config

struct	nhal_i2c_context
	Base I2C context - always present, minimal footprint. More...

struct	nhal_i2c_transfer_op_t
	Structure describing a single I2C message segment within a transaction. More...

Enumerations
enum	nhal_i2c_transfer_bit_flags_t { NHAL_I2C_TRANSFER_MSG_WRITE = 1 , NHAL_I2C_TRANSFER_MSG_READ = 1<<1 , NHAL_I2C_TRANSFER_MSG_TEN_BIT_ADDR = 1<<2 , NHAL_I2C_TRANSFER_MSG_NO_START = 1<<3 , NHAL_I2C_TRANSFER_MSG_NO_STOP = 1<<4 , NHAL_I2C_TRANSFER_MSG_NO_ADDR = 1<<5 }

Detailed Description

Defines common types and structures for the I2C Hardware Abstraction Layer (HAL).

This header file provides opaque types, enumerations, and structures used across the I2C HAL API to facilitate communication over I2C buses.

Definition in file nhal_i2c_types.h.

Typedef Documentation

typedef uint16_t nhal_i2c_address

Definition at line 17 of file nhal_i2c_types.h.

typedef uint8_t nhal_i2c_bus_id

Definition at line 16 of file nhal_i2c_types.h.

Enumerator
NHAL_I2C_TRANSFER_MSG_WRITE	Message is a write operation (default).
NHAL_I2C_TRANSFER_MSG_READ	Message is a read operation.
NHAL_I2C_TRANSFER_MSG_TEN_BIT_ADDR	Use 10-bit addressing for this message.
NHAL_I2C_TRANSFER_MSG_NO_START	Do not send a START condition before this message. Useful for subsequent messages in a combined transaction (e.g., after a repeated start).
NHAL_I2C_TRANSFER_MSG_NO_STOP	Do not send a STOP condition after this message. Essential for creating repeated START conditions before the next message.
NHAL_I2C_TRANSFER_MSG_NO_ADDR	Do not write the address first in this op.

Definition at line 36 of file nhal_i2c_types.h.