/*
**********HEADER FILE********************
File saved as       i2c.h
Compiler/Assembler  XC8 v1.38
CCI compliant?      Yes
Software function   Provides header data for i2c.c MASTER functions
Written by          Mainly Microchip C18 code adapted by Russell E. Tribe
Date                26/9/16
For (PIC type)      Various but developed on PIC16F1459
Other information   SDA on pin 13 (RB4)
                    SCL on pin 11 (RB6)
*/

#ifndef _I2C_H_
#define _I2C_H_

/** I N C L U D E S **************************************************/
#include <xc.h>         //Provides PIC header file and is required for CCI compliance

/** DECLARATIONS ****************************************************/
//SSP1CON1 REGISTER
#define   SSPENB    			0b00100000  	//Enable serial port and configures SCK, SDO, SDI
#define   SLAVE_7   			0b00000110     	//I2C Slave mode, 7-bit address
#define   SLAVE_10  			0b00000111    	//I2C Slave mode, 10-bit address
#define   MASTER    			0b00001000     	//I2C Master mode
#define   MASTER_FIRMW			0b00001011		//I2C Firmware Controlled Master mode (slave Idle)
#define   SLAVE_7_STSP_INT 		0b00001110		//I2C Slave mode, 7-bit address with Start and Stop bit interrupts enabled
#define   SLAVE_10_STSP_INT 	0b00001111		//I2C Slave mode, 10-bit address with Start and Stop bit interrupts enabled

//SSP1STAT REGISTER
#define   SLEW_OFF  			0b10000000  	//Slew rate disabled for 100kHz mode
#define   SLEW_ON   			0b00000000  	//Slew rate enabled for 400kHz mode

#define I2C_SCL	TRISBbits.TRISB6    //Pin 11 on PIC16F1459
#define I2C_SDA	TRISBbits.TRISB4    //Pin 13 on PIC16F1459  NB also AN10!!

/** FUNCTION PROTOTYPES ********************************************/
void OpenI2C (unsigned char, unsigned char);
void CloseI2C (void);
void StartI2C (void);
void RestartI2C (void);
void StopI2C (void);
void masterSendI2C (unsigned char);
void IdleI2C (void);

//******************************************** 
#endif _I2C_H_