Macro definitions for TWI/I2C communication flags and operations. More...

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Macros
#define	TWI_ACKNOWLEDGE 0x01
	Flag representing a TWI acknowledgment (ACK).
#define	TWI_NACKNOWLEDGE 0x00
	Flag representing a TWI not-acknowledgment (NACK).
#define	TWI_WRITE 0x00
#define	TWI_READ 0x01
	Flag representing a TWI read operation.

Detailed Description

Macro definitions for TWI/I2C communication flags and operations.

This header file contains essential macros for handling TWI (Two-Wire Interface) communication.

Note: These macros serve to improve code clarity and maintain protocol compliance by providing meaningful names for standard TWI/I2C signal and operation indicators.

Author: g.raf

Date: 2025-09-02

Version: 1.0 Release

Copyright: Copyright (c) 2025 g.raf Released under the GPLv3 License. (see LICENSE in repository)

Note: This file is part of a larger project and subject to the license specified in the repository. For updates and the complete revision history, see the GitHub repository.

See also: https://github.com/0x007e/avr-common "AVR ATmega GitHub Repository"

Macro Definition Documentation

◆ TWI_ACKNOWLEDGE

#define TWI_ACKNOWLEDGE 0x01

Flag representing a TWI acknowledgment (ACK).

This macro defines the value used to indicate that an acknowledgment has been received on the TWI (I2C) bus. It is typically used to signal successful data reception or transmission acknowledgement.

◆ TWI_NACKNOWLEDGE

#define TWI_NACKNOWLEDGE 0x00

Flag representing a TWI not-acknowledgment (NACK).

Flag representing a TWI write operation.

This macro defines the value used to indicate that a not-acknowledgment (NACK) has been received on the TWI (I2C) bus. It signals that the last transmitted byte was not acknowledged by the receiver.

This macro defines the value used to indicate a write command on the TWI (I2C) bus, where the master sends data to a slave device.

◆ TWI_READ

#define TWI_READ 0x01

Flag representing a TWI read operation.

This macro defines the value used to indicate a read command on the TWI (I2C) bus, where the master requests data from the slave device.

◆ TWI_WRITE

#define TWI_WRITE 0x00