/*
 * I2C.h
 *
 *  Created on: 21 sep. 2016
 *      Author: len12007
 */

#ifndef DRIVERS_I2C_H_
#define DRIVERS_I2C_H_

#include "stm32f4xx.h"

/******************************************************************************
* BRIEF: Configure the I2C bus to be used                                     *
* INFORMATION:                                                                *
******************************************************************************/
void i2c_configure(I2C_TypeDef* i2c, uint16_t sda_pin, uint16_t scl_pin, uint32_t my_address);

/******************************************************************************
* BRIEF: Get data over the I2C bus                                            *
* INFORMATION:                                                                *
* Since this system uses a 7 bit addressing mode we send the slave address    *
* in the first bytes 7 MSbs and then the LSb is set to 1 indicating that      *
* it is a receive command, after that the slave responds with a 1 bit ack and *
* the data is sent one byte at a time with an acknowledge in between          *
* every byte, as per the standard. Returns true if successful                 *
******************************************************************************/
bool i2c_receive(uint8_t slave_address, uint8_t* buffer, uint32_t length);

/******************************************************************************
* BRIEF: Send data over the I2C bus                                           *
* INFORMATION:                                                                *
* Since this system uses a 7 bit addressing mode we send the slave address    *
* in the first bytes 7 MSbs and then the LSb is set to 0 indicating that      *
* it is a send command, after that the slave responds with a 1 bit ack and    *
* the data is sent one byte at a time with an acknowledge in between          *
* every byte, as per the standard. Returns true if successful                 *
******************************************************************************/
bool i2c_send(uint8_t slave_address, uint8_t* data, uint32_t length);


#endif /* DRIVERS_I2C_H_ */