msspi2c.c

#include <xc.h>

void i2cWait(void)
{
    while(SSPCON2 && 0b00011111);
    PIR1bits.SSPIF = 0;
}

void i2cStartBit(void)
{
    SSPCON2bits.SEN = 1;
    i2cWait();
}

void i2cRestartBit(void)
{
    SSPCON2bits.RSEN = 1;
    i2cWait();
}

void i2cSend(char a)
{
    PIR1bits.SSPIF = 0;
    SSPBUF = a;
    while(!PIR1bits.SSPIF);
    PIR1bits.SSPIF = 0;
}

char i2cReceive(void)
{
    SSPCON2bits.RCEN = 1;
    i2cWait();
    return SSPBUF;
}

void i2cAckNack(void)
{
    SSPCON2bits.ACKEN = 1;
    i2cWait();
}

void i2cStop(void)
{
    SSPCON2bits.PEN = 1;
    i2cWait();
}