/** @example example_i2cMaster_TX_RX.c
*   This is an example which contains a sample I2C Master Transmit and
*   receive functionality. This example can be used to talk to any
*   I2C Slave at address 0x8 and Baud rate as configured in the HALCoGen
*   GUI which is by default 100KHz
*
*/

/* 
* Copyright (C) 2009-2015 Texas Instruments Incorporated - http://www.ti.com
* 
* 
*  Redistribution and use in source and binary forms, with or without 
*  modification, are permitted provided that the following conditions 
*  are met:
*
*    Redistributions of source code must retain the above copyright 
*    notice, this list of conditions and the following disclaimer.
*
*    Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the 
*    documentation and/or other materials provided with the   
*    distribution.
*
*    Neither the name of Texas Instruments Incorporated nor the names of
*    its contributors may be used to endorse or promote products derived
*    from this software without specific prior written permission.
*
*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
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*  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
*  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
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*  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/


/* USER CODE BEGIN (0) */
/* USER CODE END */

/* Include Files */

#include "HL_sys_common.h"

/* USER CODE BEGIN (1) */
#include "HL_i2c.h"
/* USER CODE END */

/** @fn void main(void)
*   @brief Application main function
*   @note This function is empty by default.
*
*   This function is called after startup.
*   The user can use this function to implement the application.
*/

/* USER CODE BEGIN (2) */
#define DATA_COUNT  10

#define Master_Address 0x26
#define Slave_Address  0x20

uint8_t TX_Data_Master[10] = { 0x20,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19};
uint8_t RX_Data_Master[10] = { 0 };

uint8_t TX_Data_Slave[10] = { 0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29};
uint8_t RX_Data_Slave[10] = { 0 };

/* USER CODE END */

void main(void)
{
/* USER CODE BEGIN (3) */

    int repeat = 0; int delay =0;

///////////////////////////////////////////////////////////////
//        Master Transfer Functionality                      //
///////////////////////////////////////////////////////////////
    /* I2C Init as per GUI
     *  Mode = Master - Transmitter
     *  baud rate = 100KHz
     *  Count = 10
     *  Bit Count = 8bit
     */
    i2cInit();

    /* Configure address of Slave to talk to */
    i2cSetSlaveAdd(i2cREG1, Slave_Address);

    /* Set direction to Transmitter */
    /* Note: Optional - It is done in Init */
    i2cSetDirection(i2cREG1, I2C_TRANSMITTER);


    for(repeat = 0; repeat < 2; repeat++)
    {
        /* Configure Data count */
        /* Note: Optional - It is done in Init, unless user want to change */
        i2cSetCount(i2cREG1, DATA_COUNT);

        /* Set mode as Master */
        i2cSetMode(i2cREG1, I2C_MASTER);

        /* Set Stop after programmed Count */
        i2cSetStop(i2cREG1);

        /* Transmit Start Condition */
        i2cSetStart(i2cREG1);

        /* Tranmit DATA_COUNT number of data in Polling mode */
        i2cSend(i2cREG1, DATA_COUNT, TX_Data_Master);

        /* Wait until Bus Busy is cleared */
        while(i2cIsBusBusy(i2cREG1) == true);

        /* Wait until Stop is detected */
        while(i2cIsStopDetected(i2cREG1) == 0);

        /* Clear the Stop condition */
        i2cClearSCD(i2cREG1);

        /* Simple Delay before starting Next Block */
        /* Depends on how quick the Slave gets ready */
        for(delay=0;delay<1000000;delay++);

    }

    ///////////////////////////////////////////////////////////////
    //        Master Receive Functionality                      //
    ///////////////////////////////////////////////////////////////

    /* Configure address of Slave to talk to */
    i2cSetSlaveAdd(i2cREG1, Slave_Address);

    /* Set direction to receiver */
    i2cSetDirection(i2cREG1, I2C_RECEIVER);

    for(repeat = 0; repeat < 2; repeat++)
    {
        /* Configure Data count */
        /* Note: Optional - It is done in Init, unless user want to change */
        i2cSetCount(i2cREG1, DATA_COUNT);

        /* Set mode as Master */
        i2cSetMode(i2cREG1, I2C_MASTER);

        /* Set Stop after programmed Count */
        i2cSetStop(i2cREG1);

        /* Transmit Start Condition */
        i2cSetStart(i2cREG1);

        /* Tranmit DATA_COUNT number of data in Polling mode */
        i2cReceive(i2cREG1, DATA_COUNT, RX_Data_Master);

        /* Wait until Bus Busy is cleared */
        while(i2cIsBusBusy(i2cREG1) == true);

        /* Wait until Stop is detected */
        while(i2cIsStopDetected(i2cREG1) == 0);

        /* Clear the Stop condition */
        i2cClearSCD(i2cREG1);

        /* Simple Dealya before starting Next Block */
        /* Depends on how quick the Slave gets ready */
        for(delay=0;delay<1000000;delay++);

    }

    asm(" nop");
    asm(" nop");
    asm(" nop");

    while(1);

/* USER CODE END */
}

/* USER CODE BEGIN (4) */
/* USER CODE END */