int main(void)
{
/* Disable JTAG to free up PORTA pins */
DDPCONbits.JTAGEN = 0;
/* Set the lower 8 bits of PORTA as output (for Explorer-16 LEDs),
clear the bits to ensure there is no mismatch when they are toggled */
PLIB_PORTS_DirectionOutputSet(PORTS_ID_0, PORT_CHANNEL_A, (PORTS_DATA_MASK)0x00FF);
PLIB_PORTS_Clear(PORTS_ID_0, PORT_CHANNEL_A, (PORTS_DATA_MASK)0x00FF);
/* Enable the DMA module */
PLIB_DMA_Enable(DMA_ID_0);
/* Channel is continuously enabled */
PLIB_DMA_ChannelXAutoEnable(DMA_ID_0, DMA_CHANNEL_0);
/* Set the source and destinaton addresses (addresses are converted from virtual to physical) */
PLIB_DMA_ChannelXSourceStartAddressSet(DMA_ID_0, DMA_CHANNEL_0, (uint32_t)LED_pattern);
PLIB_DMA_ChannelXDestinationStartAddressSet(DMA_ID_0, DMA_CHANNEL_0, (uint32_t)&LATA);
/* Set the source and destination sizes */
PLIB_DMA_ChannelXSourceSizeSet(DMA_ID_0, DMA_CHANNEL_0, sizeof(LED_pattern));
PLIB_DMA_ChannelXDestinationSizeSet(DMA_ID_0, DMA_CHANNEL_0, 1);
/* Set the number of bytes per transfer */
PLIB_DMA_ChannelXCellSizeSet(DMA_ID_0, DMA_CHANNEL_0, 1);
/* DMA transfer to start on Timer 1 interrupt */
PLIB_DMA_ChannelXTriggerEnable(DMA_ID_0, DMA_CHANNEL_0, DMA_CHANNEL_TRIGGER_TRANSFER_START);
PLIB_DMA_ChannelXStartIRQSet(DMA_ID_0, DMA_CHANNEL_0, DMA_TRIGGER_TIMER_1);
/* Setup Timer 1 to trigger an interrupt 10 times a second */
PLIB_TMR_ClockSourceSelect(TMR_ID_1, TMR_CLOCK_SOURCE_PERIPHERAL_CLOCK);
PLIB_TMR_PrescaleSelect(TMR_ID_1, TMR_PRESCALE_VALUE_256);
PLIB_TMR_Counter16BitClear(TMR_ID_1);
PLIB_TMR_Period16BitSet(TMR_ID_1, 3906);
/* Enable the Timer 1 interrupt source, set its priority level to 2, set
its subpriority level to 0 */
PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_TIMER_1);
PLIB_INT_VectorPrioritySet(INT_ID_0, INT_VECTOR_T1, INT_PRIORITY_LEVEL2);
PLIB_INT_VectorSubPrioritySet(INT_ID_0, INT_VECTOR_T1, 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);
/* Enable DMA channel 0 */
PLIB_DMA_ChannelXEnable(DMA_ID_0, DMA_CHANNEL_0);
/* Start Timer 1 */
PLIB_TMR_Start(TMR_ID_1);
/* Stuck in this loop, waiting for interrupts to occur */
while (1);
/* Program should not go here during normal operation */
return EXIT_FAILURE;
}
// *****************************************************************************
// *****************************************************************************
// Section: Instance 0 static driver functions
// *****************************************************************************
// *****************************************************************************
void DRV_TMR0_Initialize(void)
{
/* Initialize Timer Instance0 */
/* Disable Timer */
PLIB_TMR_Stop(TMR_ID_2);
/* Select clock source */
PLIB_TMR_ClockSourceSelect(TMR_ID_2, TMR_CLOCK_SOURCE_PERIPHERAL_CLOCK);
/* Select prescalar value */
PLIB_TMR_PrescaleSelect(TMR_ID_2, TMR_PRESCALE_VALUE_1);
/* Enable 16 bit mode */
PLIB_TMR_Mode16BitEnable(TMR_ID_2);
/* Clear counter */
PLIB_TMR_Counter16BitClear(TMR_ID_2);
/*Set period */
PLIB_TMR_Period16BitSet(TMR_ID_2, 2104);
}
// *****************************************************************************
// *****************************************************************************
// Section: Instance 0 static driver functions
// *****************************************************************************
// *****************************************************************************
void DRV_TMR0_Initialize(void)
{
/* Initialize Timer Instance0 */
/* Disable Timer */
PLIB_TMR_Stop(TMR_ID_2);
/* Select clock source */
PLIB_TMR_ClockSourceSelect(TMR_ID_2, TMR_CLOCK_SOURCE_PERIPHERAL_CLOCK);
/* Select prescalar value */
PLIB_TMR_PrescaleSelect(TMR_ID_2, TMR_PRESCALE_VALUE_256);
/* Enable 16 bit mode */
PLIB_TMR_Mode16BitEnable(TMR_ID_2);
/* Clear counter */
PLIB_TMR_Counter16BitClear(TMR_ID_2);
/*Set period */
PLIB_TMR_Period16BitSet(TMR_ID_2, 25000);
/* Setup Interrupt */
PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_TIMER_2);
PLIB_INT_VectorPrioritySet(INT_ID_0, INT_VECTOR_T2, INT_PRIORITY_LEVEL1);
PLIB_INT_VectorSubPrioritySet(INT_ID_0, INT_VECTOR_T2, INT_SUBPRIORITY_LEVEL0);
}
// *****************************************************************************
// *****************************************************************************
// Section: Instance 1 static driver functions
// *****************************************************************************
// *****************************************************************************
void DRV_TMR1_Initialize(void)
{
/* Initialize Timer Instance1 */
/* Disable Timer */
PLIB_TMR_Stop(TMR_ID_4);
/* Select clock source */
PLIB_TMR_ClockSourceSelect(TMR_ID_4, TMR_CLOCK_SOURCE_EXTERNAL_INPUT_PIN);
/* Select prescalar value */
PLIB_TMR_PrescaleSelect(TMR_ID_4, TMR_PRESCALE_VALUE_1);
/* Enable 16 bit mode */
PLIB_TMR_Mode16BitEnable(TMR_ID_4);
/* Clear counter */
PLIB_TMR_Counter16BitClear(TMR_ID_4);
/*Set period */
PLIB_TMR_Period16BitSet(TMR_ID_4, 5);
/* Setup Interrupt */
PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_TIMER_4);
PLIB_INT_VectorPrioritySet(INT_ID_0, INT_VECTOR_T4, INT_PRIORITY_LEVEL1);
PLIB_INT_VectorSubPrioritySet(INT_ID_0, INT_VECTOR_T4, INT_SUBPRIORITY_LEVEL0);
}
void PWM2_SetValues(
TMR_PRESCALE pwmPreScale
, int pwmCycle
, int pwmStart1
, int pwmStop1
, int pwmStart2
, int pwmStop2
) {
if ((pwmPreScale == TMR_PRESCALE_VALUE_1) & (pwmCycle < 400)) {
PWM2_doInt = false;
}
if ((pwmPreScale != PWM2_PreScale) | !PWM2_doInt) {
// total update
// Disable Interrupt / Clear Flag
PLIB_INT_SourceDisable(APP_INT_ID, APP_PWM2_TMR_INT_SOURCE);
PLIB_INT_SourceFlagClear(APP_INT_ID, APP_PWM2_TMR_INT_SOURCE);
// Stop the timer
PLIB_TMR_Stop(APP_PWM2_TMR_ID);
// Disable OC's
PLIB_OC_Disable(APP_PWM2_OC1_ID);
#ifdef APP_PWM2_OC2_ID
PLIB_OC_Disable(APP_PWM2_OC2_ID);
#endif // ifdef APP_PWM2_OC2_ID
PWM2_PreScale = pwmPreScale;
PWM2_Cycle = pwmCycle;
PWM2_Start1 = pwmStart1;
PWM2_Stop1 = pwmStop1;
PWM2_Start2 = pwmStart2;
PWM2_Stop2 = pwmStop2;
// Set the prescaler, and set the clock source as internal
PLIB_TMR_PrescaleSelect(APP_PWM2_TMR_ID, pwmPreScale);
// Clear the timer
PLIB_TMR_Counter16BitClear(APP_PWM2_TMR_ID);
// Load the period register
PLIB_TMR_Period16BitSet(APP_PWM2_TMR_ID, pwmCycle);
// OC1 Init
// Set buffer(primary compare) value
PLIB_OC_Buffer16BitSet(APP_PWM2_OC1_ID, pwmStart1);
// Set pulse width(secondary compare) value
PLIB_OC_PulseWidth16BitSet(APP_PWM2_OC1_ID, pwmStop1);
#ifdef APP_PWM2_OC2_ID
// OC2 Init
// Set buffer(primary compare) value
PLIB_OC_Buffer16BitSet(APP_PWM2_OC2_ID, pwmStart2);
// Set pulse width(secondary compare) value
PLIB_OC_PulseWidth16BitSet(APP_PWM2_OC2_ID, pwmStop2);
#endif // ifdef APP_PWM2_OC2_ID
// Enable OC 1
PLIB_OC_Enable(APP_PWM2_OC1_ID);
#ifdef APP_PWM2_OC2_ID
// Enable OC 2
PLIB_OC_Enable(APP_PWM2_OC2_ID);
#endif // ifdef APP_PWM2_OC2_ID
if ((PWM2_PreScale == TMR_PRESCALE_VALUE_1) & (PWM2_Cycle < 400)) {
PWM2_doInt = false;
} else {
PWM2_doInt = true;
// Reenable Interrupt
PLIB_INT_SourceEnable(APP_INT_ID, APP_PWM2_TMR_INT_SOURCE);
}
// Start the timer
PLIB_TMR_Start(APP_PWM2_TMR_ID);
} else {
// continuos update
PWM2_Cycle = pwmCycle;
PWM2_Start1 = pwmStart1;
PWM2_Stop1 = pwmStop1;
PWM2_Start2 = pwmStart2;
PWM2_Stop2 = pwmStop2;
}
}
void PWM_Initialize(void) {
// Timer Init
// Stop the timers
PLIB_TMR_Stop(APP_PWM_TMR_ID);
#ifdef APP_PWM2_OC1_ID
PLIB_TMR_Stop(APP_PWM2_TMR_ID);
#endif //ifdef APP_PWM2_OC1_ID
// Disable OC's
PLIB_OC_Disable(APP_PWM_OC1_ID);
#ifdef APP_PWM_OC2_ID
PLIB_OC_Disable(APP_PWM_OC2_ID);
#endif // ifdef APP_PWM_OC2_ID
#ifdef APP_PWM_OC3_ID
PLIB_OC_Disable(APP_PWM_OC3_ID);
#endif // ifdef APP_PWM_OC3_ID
#ifdef APP_PWM_OC4_ID
PLIB_OC_Disable(APP_PWM_OC4_ID);
#endif // ifdef APP_PWM_OC4_ID
#ifdef APP_PWM2_OC1_ID
PLIB_OC_Disable(APP_PWM2_OC1_ID);
#endif // ifdef APP_PWM2_OC1_ID
#ifdef APP_PWM2_OC2_ID
PLIB_OC_Disable(APP_PWM2_OC2_ID);
#endif // ifdef APP_PWM2_OC2_ID
// Set the prescaler, and set the clock source as internal
PLIB_TMR_ClockSourceSelect(APP_PWM_TMR_ID, TMR_CLOCK_SOURCE_PERIPHERAL_CLOCK);
PLIB_TMR_PrescaleSelect(APP_PWM_TMR_ID, APP_PWM_TMR_PRESCALE);
PWM_PreScale = APP_PWM_TMR_PRESCALE;
// Clear the timer
PLIB_TMR_Counter16BitClear(APP_PWM_TMR_ID);
// Load the period register
PLIB_TMR_Period16BitSet(APP_PWM_TMR_ID, APP_PWM_TMR_INIT);
PWM_Cycle = APP_PWM_TMR_INIT;
#ifdef APP_PWM2_OC1_ID
PLIB_TMR_ClockSourceSelect(APP_PWM2_TMR_ID, TMR_CLOCK_SOURCE_PERIPHERAL_CLOCK);
PLIB_TMR_PrescaleSelect(APP_PWM2_TMR_ID, APP_PWM2_TMR_PRESCALE);
PWM2_PreScale = APP_PWM2_TMR_PRESCALE;
// Clear the timer
PLIB_TMR_Counter16BitClear(APP_PWM2_TMR_ID);
// Load the period register
PLIB_TMR_Period16BitSet(APP_PWM2_TMR_ID, APP_PWM2_TMR_INIT);
PWM2_Cycle = APP_PWM2_TMR_INIT;
#endif // ifdef APP_PWM2_OC1_ID
// OC1 Init
// port inits
PLIB_PORTS_PinClear(APP_PWM_OC1_PORTS_ID, APP_PWM_OC1_PORT_CHANNEL, APP_PWM_OC1_PIN);
PLIB_PORTS_PinDirectionOutputSet(APP_PWM_OC1_PORTS_ID, APP_PWM_OC1_PORT_CHANNEL, APP_PWM_OC1_PIN);
APP_PWM_OC1_Mode;
PLIB_PORTS_RemapOutput(APP_PWM_OC1_PORTS_ID, APP_PWM_OC1_Function, APP_PWM_OC1_PPSOut);
//Select timer base
PLIB_OC_TimerSelect(APP_PWM_OC1_ID, APP_PWM_OC_TMR_BASE);
// Select compare mode
PLIB_OC_ModeSelect(APP_PWM_OC1_ID, OC_DUAL_COMPARE_CONTINUOUS_PULSE_MODE);
// Set buffer size to 16-bits
PLIB_OC_BufferSizeSelect(APP_PWM_OC1_ID, OC_BUFFER_SIZE_16BIT);
// Set buffer(primary compare) value
PLIB_OC_Buffer16BitSet(APP_PWM_OC1_ID, APP_PWM_OC1_On);
PWM_Start1 = APP_PWM_OC1_On;
// Set pulse width(secondary compare) value
PLIB_OC_PulseWidth16BitSet(APP_PWM_OC1_ID, APP_PWM_OC1_Off);
PWM_Stop1 = APP_PWM_OC1_Off;
#ifdef APP_PWM_OC2_ID
// OC2 Init
// port inits
PLIB_PORTS_PinClear(APP_PWM_OC2_PORTS_ID, APP_PWM_OC2_PORT_CHANNEL, APP_PWM_OC2_PIN);
PLIB_PORTS_PinDirectionOutputSet(APP_PWM_OC2_PORTS_ID, APP_PWM_OC2_PORT_CHANNEL, APP_PWM_OC2_PIN);
APP_PWM_OC2_Mode;
PLIB_PORTS_RemapOutput(APP_PWM_OC2_PORTS_ID, APP_PWM_OC2_Function, APP_PWM_OC2_PPSOut);
//Select timer base
PLIB_OC_TimerSelect(APP_PWM_OC2_ID, APP_PWM_OC_TMR_BASE);
// Select compare mode
PLIB_OC_ModeSelect(APP_PWM_OC2_ID, OC_DUAL_COMPARE_CONTINUOUS_PULSE_MODE);
// Set buffer size to 16-bits
PLIB_OC_BufferSizeSelect(APP_PWM_OC2_ID, OC_BUFFER_SIZE_16BIT);
// Set buffer(primary compare) value
PLIB_OC_Buffer16BitSet(APP_PWM_OC2_ID, APP_PWM_OC2_On);
PWM_Start2 = APP_PWM_OC2_On;
// Set pulse width(secondary compare) value
PLIB_OC_PulseWidth16BitSet(APP_PWM_OC2_ID, APP_PWM_OC2_Off);
PWM_Stop2 = APP_PWM_OC2_Off;
#endif // ifdef APP_PWM_OC2_ID
#ifdef APP_PWM_OC3_ID
// OC3 Init
// port inits
PLIB_PORTS_PinClear(APP_PWM_OC3_PORTS_ID, APP_PWM_OC3_PORT_CHANNEL, APP_PWM_OC3_PIN);
PLIB_PORTS_PinDirectionOutputSet(APP_PWM_OC3_PORTS_ID, APP_PWM_OC3_PORT_CHANNEL, APP_PWM_OC3_PIN);
APP_PWM_OC3_Mode;
PLIB_PORTS_RemapOutput(APP_PWM_OC3_PORTS_ID, APP_PWM_OC3_Function, APP_PWM_OC3_PPSOut);
//Select timer base
PLIB_OC_TimerSelect(APP_PWM_OC3_ID, APP_PWM_OC_TMR_BASE);
// Select compare mode
PLIB_OC_ModeSelect(APP_PWM_OC3_ID, OC_DUAL_COMPARE_CONTINUOUS_PULSE_MODE);
// Set buffer size to 16-bits
PLIB_OC_BufferSizeSelect(APP_PWM_OC3_ID, OC_BUFFER_SIZE_16BIT);
// Set buffer(primary compare) value
PLIB_OC_Buffer16BitSet(APP_PWM_OC3_ID, APP_PWM_OC3_On);
PWM_Start3 = APP_PWM_OC3_On;
// Set pulse width(secondary compare) value
PLIB_OC_PulseWidth16BitSet(APP_PWM_OC3_ID, APP_PWM_OC3_Off);
PWM_Stop3 = APP_PWM_OC3_Off;
#endif // ifdef APP_PWM_OC3_ID
#ifdef APP_PWM_OC4_ID
// OC4 Init
// port inits
PLIB_PORTS_PinClear(APP_PWM_OC4_PORTS_ID, APP_PWM_OC4_PORT_CHANNEL, APP_PWM_OC4_PIN);
PLIB_PORTS_PinDirectionOutputSet(APP_PWM_OC4_PORTS_ID, APP_PWM_OC4_PORT_CHANNEL, APP_PWM_OC4_PIN);
APP_PWM_OC4_Mode;
PLIB_PORTS_RemapOutput(APP_PWM_OC4_PORTS_ID, APP_PWM_OC4_Function, APP_PWM_OC4_PPSOut);
//Select timer base
PLIB_OC_TimerSelect(APP_PWM_OC4_ID, APP_PWM_OC_TMR_BASE);
// Select compare mode
PLIB_OC_ModeSelect(APP_PWM_OC4_ID, OC_DUAL_COMPARE_CONTINUOUS_PULSE_MODE);
// Set buffer size to 16-bits
PLIB_OC_BufferSizeSelect(APP_PWM_OC4_ID, OC_BUFFER_SIZE_16BIT);
// Set buffer(primary compare) value
PLIB_OC_Buffer16BitSet(APP_PWM_OC4_ID, APP_PWM_OC4_On);
PWM_Start4 = APP_PWM_OC4_On;
// Set pulse width(secondary compare) value
PLIB_OC_PulseWidth16BitSet(APP_PWM_OC4_ID, APP_PWM_OC4_Off);
PWM_Stop4 = APP_PWM_OC4_Off;
#endif // ifdef APP_PWM_OC4_ID
#ifdef APP_PWM2_OC1_ID
// PWM2 / OC1 Init
// port inits
PLIB_PORTS_PinClear(APP_PWM2_OC1_PORTS_ID, APP_PWM2_OC1_PORT_CHANNEL, APP_PWM2_OC1_PIN);
PLIB_PORTS_PinDirectionOutputSet(APP_PWM2_OC1_PORTS_ID, APP_PWM2_OC1_PORT_CHANNEL, APP_PWM2_OC1_PIN);
APP_PWM2_OC1_Mode;
PLIB_PORTS_RemapOutput(APP_PWM2_OC1_PORTS_ID, APP_PWM2_OC1_Function, APP_PWM2_OC1_PPSOut);
//Select timer base
PLIB_OC_TimerSelect(APP_PWM2_OC1_ID, APP_PWM2_OC_TMR_BASE);
// Select compare mode
PLIB_OC_ModeSelect(APP_PWM2_OC1_ID, OC_DUAL_COMPARE_CONTINUOUS_PULSE_MODE);
// Set buffer size to 16-bits
PLIB_OC_BufferSizeSelect(APP_PWM2_OC1_ID, OC_BUFFER_SIZE_16BIT);
// Set buffer(primary compare) value
PLIB_OC_Buffer16BitSet(APP_PWM2_OC1_ID, APP_PWM2_OC1_On);
PWM2_Start1 = APP_PWM2_OC1_On;
// Set pulse width(secondary compare) value
PLIB_OC_PulseWidth16BitSet(APP_PWM2_OC1_ID, APP_PWM2_OC1_Off);
PWM2_Stop1 = APP_PWM2_OC1_Off;
#endif // ifdef APP_PWM2_OC1_ID
#ifdef APP_PWM2_OC2_ID
// PWM2 / OC2 Init
// port inits
PLIB_PORTS_PinClear(APP_PWM2_OC2_PORTS_ID, APP_PWM2_OC2_PORT_CHANNEL, APP_PWM2_OC2_PIN);
PLIB_PORTS_PinDirectionOutputSet(APP_PWM2_OC2_PORTS_ID, APP_PWM2_OC2_PORT_CHANNEL, APP_PWM2_OC2_PIN);
APP_PWM2_OC2_Mode;
PLIB_PORTS_RemapOutput(APP_PWM2_OC2_PORTS_ID, APP_PWM2_OC2_Function, APP_PWM2_OC2_PPSOut);
//Select timer base
PLIB_OC_TimerSelect(APP_PWM2_OC1_ID, APP_PWM2_OC_TMR_BASE);
// Select compare mode
PLIB_OC_ModeSelect(APP_PWM2_OC2_ID, OC_DUAL_COMPARE_CONTINUOUS_PULSE_MODE);
// Set buffer size to 16-bits
PLIB_OC_BufferSizeSelect(APP_PWM2_OC2_ID, OC_BUFFER_SIZE_16BIT);
// Set buffer(primary compare) value
PLIB_OC_Buffer16BitSet(APP_PWM2_OC2_ID, APP_PWM2_OC2_On);
PWM2_Start2 = APP_PWM2_OC2_On;
// Set pulse width(secondary compare) value
PLIB_OC_PulseWidth16BitSet(APP_PWM2_OC2_ID, APP_PWM2_OC2_Off);
PWM2_Stop2 = APP_PWM2_OC2_Off;
#endif // ifdef APP_PWM2_OC2_ID
}
inline void DRV_TMR0_CounterClear(void)
{
/* Clear 16-bit counter value */
PLIB_TMR_Counter16BitClear(TMR_ID_2);
}