C++ (Cpp) I2CGenTransmit Examples

Example #1

File: FinalVersion.c Project: mk3a/Geese-Invaders

int getAccelY(){
  short dataX;
  short dataY;
  short dataZ;
  
  char printVal[10];
  
  char  chPwrCtlReg = 0x2D;
  char  chX0Addr = 0x32;
  char  chY0Addr = 0x34;
  char  chZ0Addr = 0x36;
  
  char  rgchReadAccl[] = {
    0, 0, 0            };
  char  rgchWriteAccl[] = {
    0, 0            };
    
  char rgchReadAccl2[] = {
    0, 0, 0            };
    
    char rgchReadAccl3[] = {
    0, 0, 0            };

  /*int xcoRocketCur = xcoRocketStart;
  int   ycoRocketCur = ycoRocketStart;
  int   xcoExhstCur = xcoExhstStart;
  int   ycoExhstCur = ycoExhstStart;

  int   xDirThreshPos = 50;
  int   xDirThreshNeg = -50;

  bool fDir = true;*/

    /*
     * Enable I2C Peripheral
     */
    SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C0);
    SysCtlPeripheralReset(SYSCTL_PERIPH_I2C0);

    /*
     * Set I2C GPIO pins
     */
    GPIOPinTypeI2C(I2CSDAPort, I2CSDA_PIN);
    GPIOPinTypeI2CSCL(I2CSCLPort, I2CSCL_PIN);
    GPIOPinConfigure(I2CSCL);
    GPIOPinConfigure(I2CSDA);

    /*
     * Setup I2C
     */
    I2CMasterInitExpClk(I2C0_BASE, SysCtlClockGet(), false);

    /* Initialize the Accelerometer
     *
     */
    GPIOPinTypeGPIOInput(ACCL_INT2Port, ACCL_INT2);

    rgchWriteAccl[0] = chPwrCtlReg;
    rgchWriteAccl[1] = 1 << 3;    // sets Accl in measurement mode
    I2CGenTransmit(rgchWriteAccl, 1, WRITE, ACCLADDR);
  
  
  /*
   * Loop and check for movement until switches
   * change
   */
  

    /*
     * Read the X data register
     */
    rgchReadAccl[0] = chX0Addr;
    rgchReadAccl2[0] = chY0Addr;
    rgchReadAccl3[0] = chZ0Addr;
    
    I2CGenTransmit(rgchReadAccl, 2, READ, ACCLADDR);
    I2CGenTransmit(rgchReadAccl2, 2, READ, ACCLADDR);
    I2CGenTransmit(rgchReadAccl3, 2, READ, ACCLADDR);
    
    dataX = (rgchReadAccl[2] << 8) | rgchReadAccl[1];
    dataY = (rgchReadAccl2[2] << 8) | rgchReadAccl2[1];
    dataZ = (rgchReadAccl3[2] << 8) | rgchReadAccl2[1];
    
    return dataY;
    
}

Example #2

File: gravity-pong.c Project: rohandave31/gravity-pong

int getAccelValue() {

    short	dataX;
    short dataY;
    short dataZ;

    char printVal[10];

    char 	chPwrCtlReg = 0x2D;
    char 	chX0Addr = 0x32;
    char  chY0Addr = 0x34;
    char  chZ0Addr = 0x36;

    char 	rgchReadAccl[] = { 0, 0, 0 };
    char 	rgchWriteAccl[] = { 0, 0 };

    char rgchReadAccl2[] = { 0, 0, 0 };

    char rgchReadAccl3[] = { 0, 0, 0 };

    int xDirThreshPos = 50;
    int	xDirThreshNeg = -50;

    bool fDir = true;

    bool fClearOled = true;

    /*
     * If applicable, reset OLED
     */
    if(fClearOled == true) {


        //Enable I2C Peripheral

        SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C0);
        SysCtlPeripheralReset(SYSCTL_PERIPH_I2C0);


        //Set I2C GPIO pins

        GPIOPinTypeI2C(I2CSDAPort, I2CSDA_PIN);
        GPIOPinTypeI2CSCL(I2CSCLPort, I2CSCL_PIN);
        GPIOPinConfigure(I2CSCL);
        GPIOPinConfigure(I2CSDA);

        //Setup I2C

        I2CMasterInitExpClk(I2C0_BASE, SysCtlClockGet(), false);

        //Initialize the Accelerometer

        GPIOPinTypeGPIOInput(ACCL_INT2Port, ACCL_INT2);

        rgchWriteAccl[0] = chPwrCtlReg;
        rgchWriteAccl[1] = 1 << 3;		// sets Accl in measurement mode

        I2CGenTransmit(rgchWriteAccl, 1, WRITE, ACCLADDR);
    }

    rgchReadAccl[0] = chX0Addr;
    rgchReadAccl2[0] = chY0Addr;
    rgchReadAccl3[0] = chZ0Addr;

    I2CGenTransmit(rgchReadAccl, 2, READ, ACCLADDR);
    I2CGenTransmit(rgchReadAccl2, 2, READ, ACCLADDR);
    I2CGenTransmit(rgchReadAccl3, 2, READ, ACCLADDR);

    dataX = (rgchReadAccl[2] << 8) | rgchReadAccl[1];
    dataY = (rgchReadAccl2[2] << 8) | rgchReadAccl2[1];
    dataZ = (rgchReadAccl3[2] << 8) | rgchReadAccl2[1];

    return (int)dataY;
}

Example #3

File: input.c Project: gitter-badger/se-101-project

void readSensorData(GameState* state) {
  short dataX;
  short dataY;
  short dataZ;

  char printVal[10];

  char  chPwrCtlReg = 0x2D;
  char  chX0Addr = 0x32;
  char  chY0Addr = 0x34;
  char  chZ0Addr = 0x36;

  char  rgchReadAccl[] = {
    0, 0, 0            };
  char  rgchWriteAccl[] = {
    0, 0            };

  char rgchReadAccl2[] = {
    0, 0, 0            };

    char rgchReadAccl3[] = {
    0, 0, 0            };

  int   xDirThreshPos = 50;
  int   xDirThreshNeg = -50;

  bool fDir = true;

  if(state->accelInitialized == 0){
    /*
     * Enable I2C Peripheral
     */
    SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C0);
    SysCtlPeripheralReset(SYSCTL_PERIPH_I2C0);

    /*
     * Set I2C GPIO pins
     */
    GPIOPinTypeI2C(I2CSDAPort, I2CSDA_PIN);
    GPIOPinTypeI2CSCL(I2CSCLPort, I2CSCL_PIN);
    GPIOPinConfigure(I2CSCL);
    GPIOPinConfigure(I2CSDA);

    /*
     * Setup I2C
     */
    I2CMasterInitExpClk(I2C0_BASE, SysCtlClockGet(), false);

    /* Initialize the Accelerometer
     *
     */
    GPIOPinTypeGPIOInput(ACCL_INT2Port, ACCL_INT2);

    rgchWriteAccl[0] = chPwrCtlReg;
    rgchWriteAccl[1] = 1 << 3;    // sets Accl in measurement mode
    I2CGenTransmit(rgchWriteAccl, 1, WRITE, ACCLADDR);
    state->accelInitialized = 1;
  }



  rgchReadAccl[0] = chX0Addr;
  rgchReadAccl2[0] = chY0Addr;
  rgchReadAccl3[0] = chZ0Addr;

  I2CGenTransmit(rgchReadAccl, 2, READ, ACCLADDR);
  I2CGenTransmit(rgchReadAccl2, 2, READ, ACCLADDR);
  I2CGenTransmit(rgchReadAccl3, 2, READ, ACCLADDR);

  dataX = (rgchReadAccl[2] << 8) | rgchReadAccl[1];
  dataY = (rgchReadAccl2[2] << 8) | rgchReadAccl2[1];
  dataZ = (rgchReadAccl3[2] << 8) | rgchReadAccl2[1];

  state->accelY = dataY;

}