main.c

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/****************************************************************************
 * Copyright (C) 2015 Sensorian
 *                                                                          *
 * This file is part of Sensorian.                                          *
 *                                                                          *
 *   Sensorian is free software: you can redistribute it and/or modify it   *
 *   under the terms of the GNU Lesser General Public License as published  *
 *   by the Free Software Foundation, either version 3 of the License, or   *
 *   (at your option) any later version.                                    *
 *                                                                          *
 *   Sensorian is distributed in the hope that it will be useful,           *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of         *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
 *   GNU Lesser General Public License for more details.                    *
 *                                                                          *
 *   You should have received a copy of the GNU Lesser General Public       *
 *   License along with Sensorian.                                          *
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 ****************************************************************************/

#include <stdio.h>
#include "Utilities.h"
#include "FXOS8700CQ.h"
#include "i2c.h"

int main(int argc, char **argv)
{   
    char orienta = 0;
    
    I2C_Initialize(FXOS8700CQ_ADDRESS);                     //Initialize I2C and setup chip address     
    FXOS8700CQ_Initialize();                //Setup chip in hybrid mode 
    FXOS8700CQ_StandbyMode();   
    FXOS8700CQ_WriteByte(SYSMOD,0x01);      //Set to wake up    
    FXOS8700CQ_ActiveMode();
    char id = FXOS8700CQ_ReadByte(PL_BF_ZCOMP);
    printf("PL_BF_ZCOMP: 0x%02X. \r\n",id);
    
    FXOS8700CQ_ConfigureOrientation();
    
    unsigned char mode = 0;
    while(1)
    {   
        if(FXOS8700CQ_ReadStatusReg() & 0x80)
        {   
            orienta = FXOS8700CQ_GetOrientation();       
            printf("\r\nRegister: %02X \r\n", orienta);
            
            mode = (orienta >> 1) & 0x03;           //mask the rets of the bits
            
            switch(mode)
            {           
                case 0:
                    printf("Landscape right.\r\n");
                    break;
                case 1:
                    printf("Landscape left. \r\n");
                    break;              
                case 2:
                    printf("Portrait down.\r\n");
                    break;
                case 3:
                    printf("Portrait up.\r\n");
                    break;
                default:           
                    printf("Nothing here");
                    break;                  
            }           
            delay_ms(500);  
        }           
    }
    
    printf("Shutting down");    
    I2C_Close();                //Return I2C pins to default status

    return 0;
}