/*******************************************************************************
* Function Name: Timer_2_Start
********************************************************************************
*
* Summary:
* The start function initializes the timer with the default values, the
* enables the timerto begin counting. It does not enable interrupts,
* the EnableInt command should be called if interrupt generation is required.
*
* Parameters:
* void
*
* Return:
* void
*
* Global variables:
* Timer_2_initVar: Is modified when this function is called for the
* first time. Is used to ensure that initialization happens only once.
*
*******************************************************************************/
void Timer_2_Start(void)
{
if(Timer_2_initVar == 0u)
{
Timer_2_Init();
Timer_2_initVar = 1u; /* Clear this bit for Initialization */
}
/* Enable the Timer */
Timer_2_Enable();
}
/****************************************************************************
*
* NAME : A2D_Init
*
* DESCRIPTION :
*
****************************************************************************/
void A2D_Init (void)
{
// define all the analog inputs as singled-ended inputs
// ----------------------------------------------------
AMX0CF = 0;
// define the conversion clock period and the the intenal amplifier gain
// SAR conversion clock = 8 system clocks, gain = 1
// ------------------------------------------------
ADC0CF = 0x38;
// define the first input to be sampled and select it
// --------------------------------------------------
A2DCurrentAnalogPin = CPU_ANALOG_IN_1;
AMX0SL = SELECT_CPU_ANALOG_IN1;
// select internal refernce, enables the bias for the ADC, enable the temperature sensor
// -------------------------------------------------------------------------------------
REF0CN = 0x07;
// zero the samples buffer
// -----------------------
memset(A2DSamplesBuffer,0,NO_OF_CPU_ANALOG_INPUTS * sizeof(WORD));
// select the A2D for timer 2 overflow work mode
// ---------------------------------------------
ADC0CN = 0x0c;
// init timer 2 to use timer 2 overflow for initiating an A2D sample
// -----------------------------------------------------------------
Timer_2_Init();
// enable the A2D converter
// ------------------------
ADC0CN |= A2D_ENABLE;
EIE2 |= A2D_INT_ENABLE;
// enable interrputs
// -----------------
EA |= ENABLE;
}//End of ADCInit
