// *****************************************************************************
// *****************************************************************************
// Section: Instance 0 static driver functions
// *****************************************************************************
// *****************************************************************************
void DRV_TMR0_Initialize(void)
{
/* Initialize Timer Instance0 */
/* Disable Timer */
PLIB_TMR_Stop(TMR_ID_1);
/* Select clock source */
PLIB_TMR_ClockSourceSelect(TMR_ID_1, TMR_CLOCK_SOURCE_PERIPHERAL_CLOCK);
/* Select prescalar value */
PLIB_TMR_PrescaleSelect(TMR_ID_1, TMR_PRESCALE_VALUE_256);
/* Enable 32 bit mode */
PLIB_TMR_Mode32BitEnable(TMR_ID_1);
/* Clear counter */
PLIB_TMR_Counter32BitClear(TMR_ID_1);
/*Set period */
PLIB_TMR_Period32BitSet(TMR_ID_1, 1);
/* Setup Interrupt */
PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_TIMER_1);
PLIB_INT_VectorPrioritySet(INT_ID_0, INT_VECTOR_T1, INT_PRIORITY_LEVEL1);
PLIB_INT_VectorSubPrioritySet(INT_ID_0, INT_VECTOR_T1, INT_SUBPRIORITY_LEVEL0);
}
int main(void)
{
/* PBclk as the timer source, prescaler is 256 (PBclk / 256), enable timer 23
(timer 2 + timer 3, 32 bit time), clear the counter, set timer period */
PLIB_TMR_ClockSourceSelect(TMR_ID_2, TMR_CLOCK_SOURCE_PERIPHERAL_CLOCK);
PLIB_TMR_PrescaleSelect(TMR_ID_2, TMR_PRESCALE_VALUE_256);
PLIB_TMR_Mode32BitEnable(TMR_ID_2);
PLIB_TMR_Counter32BitClear(TMR_ID_2);
PLIB_TMR_Period32BitSet(TMR_ID_2, PERIOD);
/* Setup input capture to capture only rising edges, captures start
on first rising edge, use timer 2, use a 32 bit buffer for storing
the captured timer value, enable the input capture 1 module */
PLIB_IC_ModeSelect(IC_ID_1, IC_INPUT_CAPTURE_RISING_EDGE_MODE);
PLIB_IC_FirstCaptureEdgeSelect(IC_ID_1, IC_EDGE_RISING);
PLIB_IC_TimerSelect(IC_ID_1, IC_TIMER_TMR2);
PLIB_IC_BufferSizeSelect(IC_ID_1, IC_BUFFER_SIZE_32BIT);
PLIB_IC_Enable(IC_ID_1);
/* Enable the input capture 1 interrupt source, set its priority level to 2,
set its subpriority level to 0 */
PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_INPUT_CAPTURE_1);
PLIB_INT_VectorPrioritySet(INT_ID_0, INT_VECTOR_IC1, INT_PRIORITY_LEVEL2);
PLIB_INT_VectorSubPrioritySet(INT_ID_0, INT_VECTOR_IC1, INT_SUBPRIORITY_LEVEL0);
/* Enable multi-vectored interrupts, enable the generation of interrupts to the CPU */
PLIB_INT_MultiVectorSelect(INT_ID_0);
PLIB_INT_Enable(INT_ID_0);
/* Start the timer */
PLIB_TMR_Start(TMR_ID_2);
/* Waiting for input capture event (stuck in this loop) */
while (1);
/* Program should not go here during normal operation */
return EXIT_FAILURE;
}
