TWI_AVR8.h File Reference

TWI Peripheral Driver (AVR8) More...

#include "../../../Common/Common.h"
#include <stdio.h>
#include <util/twi.h>

Defines
#define	TWI_ADDRESS_READ   0x01
#define	TWI_ADDRESS_WRITE   0x00
#define	TWI_DEVICE_ADDRESS_MASK   0xFE
#define	TWI_BIT_PRESCALE_1   ((0 << TWPS1) | (0 << TWPS0))
#define	TWI_BIT_PRESCALE_4   ((0 << TWPS1) | (1 << TWPS0))
#define	TWI_BIT_PRESCALE_16   ((1 << TWPS1) | (0 << TWPS0))
#define	TWI_BIT_PRESCALE_64   ((1 << TWPS1) | (1 << TWPS0))
#define	TWI_BITLENGTH_FROM_FREQ(Prescale, Frequency)   ((((F_CPU / (Prescale)) / (Frequency)) - 16) / 2)
Enumerations
enum	TWI_ErrorCodes_t {   TWI_ERROR_NoError = 0,   TWI_ERROR_BusFault = 1,   TWI_ERROR_BusCaptureTimeout = 2,   TWI_ERROR_SlaveResponseTimeout = 3,   TWI_ERROR_SlaveNotReady = 4,   TWI_ERROR_SlaveNAK = 5 }
Functions
static void	TWI_Init (const uint8_t Prescale, const uint8_t BitLength) ATTR_ALWAYS_INLINE
static void	TWI_Disable (void) ATTR_ALWAYS_INLINE
static void	TWI_StopTransmission (void) ATTR_ALWAYS_INLINE
uint8_t	TWI_StartTransmission (const uint8_t SlaveAddress, const uint8_t TimeoutMS)
bool	TWI_SendByte (const uint8_t Byte)
bool	TWI_ReceiveByte (uint8_t *const Byte, const bool LastByte) ATTR_NON_NULL_PTR_ARG(1)
uint8_t	TWI_ReadPacket (const uint8_t SlaveAddress, const uint8_t TimeoutMS, const uint8_t *InternalAddress, uint8_t InternalAddressLen, uint8_t *Buffer, uint8_t Length) ATTR_NON_NULL_PTR_ARG(3)
uint8_t	TWI_WritePacket (const uint8_t SlaveAddress, const uint8_t TimeoutMS, const uint8_t *InternalAddress, uint8_t InternalAddressLen, const uint8_t *Buffer, uint8_t Length) ATTR_NON_NULL_PTR_ARG(3)

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Detailed Description

On-chip TWI driver for the 8-bit AVR microcontrollers.

Note:

This file should not be included directly. It is automatically included as needed by the TWI driver dispatch header located in LUFA/Drivers/Peripheral/TWI.h.