void initADCDMA (void)
{
// Configure Oscillator to operate the device at 40Mhz
// Fosc= Fin*M/(N1*N2), Fcy=Fosc/2
// Fosc= 8M*40/(2*2)=80Mhz for 8M input clock
PLLFBD=38; // M=40
CLKDIVbits.PLLPOST=0; // N1=2
CLKDIVbits.PLLPRE=0; // N2=2
OSCTUN=0; // Tune FRC oscillator, if FRC is used
// Disable Watch Dog Timer
RCONbits.SWDTEN=0;
// clock switching to incorporate PLL
__builtin_write_OSCCONH(0x03); // Initiate Clock Switch to Primary Oscillator with PLL (NOSC=0b011)
__builtin_write_OSCCONL(OSCCON || 0x01); // Start clock switching
while (OSCCONbits.COSC != 0x03); // Wait for Clock switch to occur
while(OSCCONbits.LOCK!=1) {}; // Wait for PLL to lock
// Peripheral Initialisation
initDma0(); // Initialise the DMA controller to buffer ADC data in conversion order
initAdc1(); // Initialize the A/D converter to convert Channel 5 //Loop Endlessly - Execution is interrupt driven
//from this point on.
}
int main(void)
{
initAdc1(); //initialize ADC
while (1)
{
calc_Vout(); //Calculate ADC result as a voltage
calc_temp(); //Calculate Temperature
}
} //End of main
/****************************************************************************
Function:
void AccelerometerInit( void )
Description:
This routine sets up the ADC to sample the tri-axial outputs of the Accelerometer.
Precondition:
None
Parameters:
None
Return Values:
None
Remarks:
None
***************************************************************************/
void AccelerometerInit( void )
{
initAdc1(); // Initialize the A/D sample accelerometer outputs
}
