atmega128rfa1_avr477_remote/twi_master.c File Reference

#include <avr/io.h>
#include <avr/interrupt.h>
#include "twi_master.h"

Functions
	switch (TWSR)
	This function is the Interrupt Service Routine (ISR). More...
unsigned char	twi_get_data_from_transceiver (unsigned char *msg, unsigned char msgSize)
	Call this function to read out the requested data from the TWI transceiver buffer. More...
unsigned char	twi_get_state_info (void)
	Call this function to fetch the state information of the previous operation. More...
void	twi_master_initialise (void)
	Call this function to set up the TWI master to its initial standby state. More...
void	twi_start_transceiver (void)
	Call this function to resend the last message. More...
void	twi_start_transceiver_with_data (unsigned char *msg, unsigned char msgSize, unsigned char direction, unsigned char index)
	Call this function to send a prepared message. More...
unsigned char	twi_transceiver_busy (void)
	Call this function to test if the TWI_ISR is busy transmitting.e. More...

Variables
static unsigned char	TWI_buf [TWI_BUFFER_SIZE]
static unsigned char	TWI_msgSize
static unsigned char	TWI_state = TWI_NO_STATE
union TWI_statusReg	TWI_statusReg = {0}

switch

(

TWSR

)

This function is the Interrupt Service Routine (ISR).

called when the TWI interrupt is triggered; that is whenever a TWI event has occurred. This function should not be called directly from the main application.

References TWI_statusReg::lastTransOK, TRUE, TWI_ARB_LOST, TWI_buf, TWI_BUS_ERROR, TWI_MRX_ADR_ACK, TWI_MRX_ADR_NACK, TWI_MRX_DATA_ACK, TWI_MRX_DATA_NACK, TWI_msgSize, TWI_MTX_ADR_ACK, TWI_MTX_ADR_NACK, TWI_MTX_DATA_ACK, TWI_MTX_DATA_NACK, TWI_REP_START, TWI_START, and TWI_state.

unsigned char TWI_buf[TWI_BUFFER_SIZE]

static

Referenced by switch(), twi_get_data_from_transceiver(), and twi_start_transceiver_with_data().

unsigned char TWI_msgSize

static

Referenced by switch(), and twi_start_transceiver_with_data().

unsigned char TWI_state = TWI_NO_STATE

static

Referenced by switch(), twi_get_state_info(), twi_start_transceiver(), and twi_start_transceiver_with_data().

union TWI_statusReg TWI_statusReg = {0}