629 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			629 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /****************************************************************************
 | |
|  *   $Id:: timer16.c 6950 2011-03-23 22:09:44Z usb00423                     $
 | |
|  *   Project: NXP LPC13Uxx 16-bit timer example
 | |
|  *
 | |
|  *   Description:
 | |
|  *     This file contains 16-bit timer code example which include timer 
 | |
|  *     initialization, timer interrupt handler, and related APIs for 
 | |
|  *     timer setup.
 | |
|  *
 | |
|  ****************************************************************************
 | |
| * Software that is described herein is for illustrative purposes only
 | |
| * which provides customers with programming information regarding the
 | |
| * products. This software is supplied "AS IS" without any warranties.
 | |
| * NXP Semiconductors assumes no responsibility or liability for the
 | |
| * use of the software, conveys no license or title under any patent,
 | |
| * copyright, or mask work right to the product. NXP Semiconductors
 | |
| * reserves the right to make changes in the software without
 | |
| * notification. NXP Semiconductors also make no representation or
 | |
| * warranty that such application will be suitable for the specified
 | |
| * use without further testing or modification.
 | |
| * Permission to use, copy, modify, and distribute this software and its
 | |
| * documentation is hereby granted, under NXP Semiconductors'
 | |
| * relevant copyright in the software, without fee, provided that it
 | |
| * is used in conjunction with NXP Semiconductors microcontrollers.  This
 | |
| * copyright, permission, and disclaimer notice must appear in all copies of
 | |
| * this code.
 | |
| ****************************************************************************/
 | |
| #include "LPC13Uxx.h"
 | |
| #include "timer16.h"
 | |
| #include "nmi.h"
 | |
| 
 | |
| volatile uint32_t timer16_0_counter[4] = {0,0,0,0};
 | |
| volatile uint32_t timer16_1_counter[4] = {0,0,0,0};
 | |
| volatile uint32_t timer16_0_capture[4] = {0,0,0,0};
 | |
| volatile uint32_t timer16_1_capture[4] = {0,0,0,0};
 | |
| volatile uint32_t timer16_0_period = 0;
 | |
| volatile uint32_t timer16_1_period = 0;
 | |
| 
 | |
| /*****************************************************************************
 | |
| ** Function name:		delayMs
 | |
| **
 | |
| ** Descriptions:		Start the timer delay in milo seconds
 | |
| **						until elapsed
 | |
| **
 | |
| ** parameters:			timer number, Delay value in milo second			 
 | |
| ** 						
 | |
| ** Returned value:		None
 | |
| ** 
 | |
| *****************************************************************************/
 | |
| void delayMs(uint8_t timer_num, uint32_t delayInMs)
 | |
| {
 | |
|   if (timer_num == 0)
 | |
|   {
 | |
|     /*
 | |
|     * setup timer #0 for delay
 | |
|     */
 | |
|     LPC_CT16B0->TCR = 0x02;		/* reset timer */
 | |
|     LPC_CT16B0->PR  = 0x00;		/* set prescaler to zero */
 | |
|     LPC_CT16B0->MR0 = delayInMs * (SystemCoreClock / 1000);
 | |
|     LPC_CT16B0->IR  = 0xff;		/* reset all interrrupts */
 | |
|     LPC_CT16B0->MCR = 0x04;		/* stop timer on match */
 | |
|     LPC_CT16B0->TCR = 0x01;		/* start timer */
 | |
|     /* wait until delay time has elapsed */
 | |
|     while (LPC_CT16B0->TCR & 0x01);
 | |
|   }
 | |
|   else if (timer_num == 1)
 | |
|   {
 | |
|     /*
 | |
|     * setup timer #1 for delay
 | |
|     */
 | |
|     LPC_CT16B1->TCR = 0x02;		/* reset timer */
 | |
|     LPC_CT16B1->PR  = 0x00;		/* set prescaler to zero */
 | |
|     LPC_CT16B1->MR0 = delayInMs * (SystemCoreClock / 1000);
 | |
|     LPC_CT16B1->IR  = 0xff;		/* reset all interrrupts */
 | |
|     LPC_CT16B1->MCR = 0x04;		/* stop timer on match */
 | |
|     LPC_CT16B1->TCR = 0x01;		/* start timer */
 | |
|     /* wait until delay time has elapsed */
 | |
|     while (LPC_CT16B1->TCR & 0x01);
 | |
|   }
 | |
|   return;
 | |
| }
 | |
| 
 | |
| /******************************************************************************
 | |
| ** Function name:		CT16B0_IRQHandler
 | |
| **
 | |
| ** Descriptions:		Timer/CounterX and CaptureX interrupt handler
 | |
| **
 | |
| ** parameters:			None
 | |
| ** Returned value:		None
 | |
| ** 
 | |
| ******************************************************************************/
 | |
| void CT16B0_IRQHandler(void)
 | |
| {
 | |
|   if ( LPC_CT16B0->IR & (0x1<<0) )
 | |
|   {
 | |
| 	LPC_CT16B0->IR = 0x1<<0;			/* clear interrupt flag */
 | |
| 	timer16_0_counter[0]++;
 | |
|   }
 | |
|   if ( LPC_CT16B0->IR & (0x1<<1) )
 | |
|   {
 | |
| 	LPC_CT16B0->IR = 0x1<<1;			/* clear interrupt flag */
 | |
| 	timer16_0_counter[1]++;
 | |
|   }
 | |
|   if ( LPC_CT16B0->IR & (0x1<<2) )
 | |
|   {
 | |
| 	LPC_CT16B0->IR = 0x1<<2;			/* clear interrupt flag */
 | |
| 	timer16_0_counter[2]++;
 | |
|   }
 | |
|   if ( LPC_CT16B0->IR & (0x1<<3) )
 | |
|   {
 | |
| 	LPC_CT16B0->IR = 0x1<<3;			/* clear interrupt flag */
 | |
| 	timer16_0_counter[3]++;
 | |
|   }
 | |
|   if ( LPC_CT16B0->IR & (0x1<<4) )
 | |
|   {
 | |
| 	LPC_CT16B0->IR = 0x1<<4;		/* clear interrupt flag */
 | |
| 	timer16_0_capture[0]++;
 | |
|   }
 | |
|   if ( LPC_CT16B0->IR & (0x1<<5) )
 | |
|   {
 | |
| 	LPC_CT16B0->IR = 0x1<<5;		/* clear interrupt flag */
 | |
| 	timer16_0_capture[1]++;
 | |
|   }
 | |
|   if ( LPC_CT16B0->IR & (0x1<<6) )
 | |
|   {
 | |
| 	LPC_CT16B0->IR = 0x1<<6;		/* clear interrupt flag */
 | |
| 	timer16_0_capture[2]++;
 | |
|   }
 | |
|   if ( LPC_CT16B0->IR & (0x1<<7) )
 | |
|   {
 | |
| 	LPC_CT16B0->IR = 0x1<<7;		/* clear interrupt flag */
 | |
| 	timer16_0_capture[3]++;
 | |
|   }
 | |
|   return;
 | |
| }
 | |
| 
 | |
| /******************************************************************************
 | |
| ** Function name:		CT16B1_IRQHandler
 | |
| **
 | |
| ** Descriptions:		Timer/CounterX and CaptureX interrupt handler
 | |
| **
 | |
| ** parameters:			None
 | |
| ** Returned value:		None
 | |
| ** 
 | |
| ******************************************************************************/
 | |
| void CT16B1_IRQHandler(void)
 | |
| {
 | |
|   if ( LPC_CT16B1->IR & (0x1<<0) )
 | |
|   {  
 | |
| 	LPC_CT16B1->IR = 0x1<<0;			/* clear interrupt flag */
 | |
| 	timer16_1_counter[0]++;
 | |
|   }
 | |
|   if ( LPC_CT16B1->IR & (0x1<<1) )
 | |
|   {  
 | |
| 	LPC_CT16B1->IR = 0x1<<1;			/* clear interrupt flag */
 | |
| 	timer16_1_counter[1]++;
 | |
|   }
 | |
|   if ( LPC_CT16B1->IR & (0x1<<2) )
 | |
|   {  
 | |
| 	LPC_CT16B1->IR = 0x1<<2;			/* clear interrupt flag */
 | |
| 	timer16_1_counter[2]++;
 | |
|   }
 | |
|   if ( LPC_CT16B1->IR & (0x1<<3) )
 | |
|   {  
 | |
| 	LPC_CT16B1->IR = 0x1<<3;			/* clear interrupt flag */
 | |
| 	timer16_1_counter[3]++;
 | |
|   }
 | |
|   if ( LPC_CT16B1->IR & (0x1<<4) )
 | |
|   {
 | |
| 	LPC_CT16B1->IR = 0x1<<4;		/* clear interrupt flag */
 | |
| 	timer16_1_capture[0]++;
 | |
|   }
 | |
|   if ( LPC_CT16B1->IR & (0x1<<5) )
 | |
|   {
 | |
| 	LPC_CT16B1->IR = 0x1<<5;		/* clear interrupt flag */
 | |
| 	timer16_1_capture[1]++;
 | |
|   }
 | |
|   if ( LPC_CT16B1->IR & (0x1<<6) )
 | |
|   {
 | |
| 	LPC_CT16B1->IR = 0x1<<6;		/* clear interrupt flag */
 | |
| 	timer16_1_capture[2]++;
 | |
|   }
 | |
|   if ( LPC_CT16B1->IR & (0x1<<7) )
 | |
|   {
 | |
| 	LPC_CT16B1->IR = 0x1<<7;		/* clear interrupt flag */
 | |
| 	timer16_1_capture[3]++;
 | |
|   }
 | |
|   return;
 | |
| }
 | |
| 
 | |
| /******************************************************************************
 | |
| ** Function name:		enable_timer
 | |
| **
 | |
| ** Descriptions:		Enable timer
 | |
| **
 | |
| ** parameters:			timer number: 0 or 1
 | |
| ** Returned value:		None
 | |
| ** 
 | |
| ******************************************************************************/
 | |
| void enable_timer16(uint8_t timer_num)
 | |
| {
 | |
|   if ( timer_num == 0 )
 | |
|   {
 | |
|     LPC_CT16B0->TCR = 1;
 | |
|   }
 | |
|   else
 | |
|   {
 | |
|     LPC_CT16B1->TCR = 1;
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|   }
 | |
|   return;
 | |
| }
 | |
| 
 | |
| /******************************************************************************
 | |
| ** Function name:		disable_timer
 | |
| **
 | |
| ** Descriptions:		Disable timer
 | |
| **
 | |
| ** parameters:			timer number: 0 or 1
 | |
| ** Returned value:		None
 | |
| ** 
 | |
| ******************************************************************************/
 | |
| void disable_timer16(uint8_t timer_num)
 | |
| {
 | |
|   if ( timer_num == 0 )
 | |
|   {
 | |
|     LPC_CT16B0->TCR = 0;
 | |
|   }
 | |
|   else
 | |
|   {
 | |
|     LPC_CT16B1->TCR = 0;
 | |
|   }
 | |
|   return;
 | |
| }
 | |
| 
 | |
| /******************************************************************************
 | |
| ** Function name:		reset_timer
 | |
| **
 | |
| ** Descriptions:		Reset timer
 | |
| **
 | |
| ** parameters:			timer number: 0 or 1
 | |
| ** Returned value:		None
 | |
| ** 
 | |
| ******************************************************************************/
 | |
| void reset_timer16(uint8_t timer_num)
 | |
| {
 | |
|   uint32_t regVal;
 | |
| 
 | |
|   if ( timer_num == 0 )
 | |
|   {
 | |
|     regVal = LPC_CT16B0->TCR;
 | |
|     regVal |= 0x02;
 | |
|     LPC_CT16B0->TCR = regVal;
 | |
|   }
 | |
|   else
 | |
|   {
 | |
|     regVal = LPC_CT16B1->TCR;
 | |
|     regVal |= 0x02;
 | |
|     LPC_CT16B1->TCR = regVal;
 | |
|   }
 | |
|   return;
 | |
| }
 | |
| 
 | |
| /******************************************************************************
 | |
| ** Function name:		Set_timer_capture
 | |
| **
 | |
| ** Descriptions:		set timer capture based on LOC number.
 | |
| **
 | |
| ** parameters:			timer number and location number
 | |
| ** Returned value:		None
 | |
| ** 
 | |
| ******************************************************************************/
 | |
| void set_timer16_capture(uint8_t timer_num, uint8_t location )
 | |
| {
 | |
|   if ( timer_num == 0 )
 | |
|   {
 | |
| 	/*  Timer0_16 I/O config */
 | |
| 	if ( location == 0 )
 | |
| 	{
 | |
| 	  LPC_IOCON->PIO1_16           &= ~0x07;
 | |
| 	  LPC_IOCON->PIO1_16           |= 0x02;		/* Timer0_16 CAP0 */
 | |
| 	  LPC_IOCON->PIO1_17           &= ~0x07;
 | |
| 	  LPC_IOCON->PIO1_17           |= 0x01;		/* Timer0_16 CAP2 */
 | |
| 	}
 | |
| 	else if ( location == 1 )
 | |
| 	{
 | |
| 	  LPC_IOCON->PIO0_2            &= ~0x07;
 | |
| 	  LPC_IOCON->PIO0_2            |= 0x02;		/* Timer0_16 CAP0 */
 | |
| 	}
 | |
| 	else
 | |
| 	{
 | |
| 	  while ( 1 );				/* Fatal location number error */
 | |
| 	}
 | |
|   }
 | |
|   else
 | |
|   {
 | |
| 	/*  Timer1_16 I/O config */
 | |
| 	if ( location == 0 )
 | |
| 	{
 | |
| 	  LPC_IOCON->PIO0_20           &= ~0x07;	/*  Timer1_16 I/O config */
 | |
| 	  LPC_IOCON->PIO0_20           |= 0x01;		/* Timer1_16 CAP0 */
 | |
| 	  LPC_IOCON->PIO1_18           &= ~0x07;
 | |
| 	  LPC_IOCON->PIO1_18           |= 0x01;		/* Timer1_16 CAP1 */
 | |
| 	}
 | |
| 	else
 | |
| 	{
 | |
| 	  while ( 1 );				/* Fatal location number error */
 | |
| 	}
 | |
|   }	
 | |
|   return;
 | |
| }
 | |
| 
 | |
| /******************************************************************************
 | |
| ** Function name:		Set_timer_match
 | |
| **
 | |
| ** Descriptions:		set timer match based on LOC number.
 | |
| **
 | |
| ** parameters:			timer number, match enable, and location number 
 | |
| ** Returned value:		None
 | |
| ** 
 | |
| ******************************************************************************/
 | |
| void set_timer16_match(uint8_t timer_num, uint8_t match_enable, uint8_t location)
 | |
| {
 | |
|   if ( timer_num == 0 )
 | |
|   {
 | |
| 	if ( match_enable & 0x01 )
 | |
| 	{
 | |
| 	  /*  Timer0_16 I/O config */
 | |
| 	  if ( location == 0 )
 | |
| 	  {
 | |
| 		LPC_IOCON->PIO0_8           &= ~0x07;	
 | |
| 		LPC_IOCON->PIO0_8           |= 0x02;		/* Timer0_16 MAT0 */
 | |
| 	  }
 | |
| 	  else if ( location == 1 )
 | |
| 	  {
 | |
| 		LPC_IOCON->PIO1_13           &= ~0x07;
 | |
| 		LPC_IOCON->PIO1_13           |= 0x02;		/* Timer0_16 MAT0 */
 | |
| 	  }
 | |
| 	}
 | |
| 	if ( match_enable & 0x02 )
 | |
| 	{
 | |
| 	  /*  Timer0_16 I/O config */
 | |
| 	  if ( location == 0 )
 | |
| 	  {
 | |
| 		LPC_IOCON->PIO0_9           &= ~0x07;
 | |
| 		LPC_IOCON->PIO0_9           |= 0x02;		/* Timer0_16 MAT1 */
 | |
| 	  }
 | |
| 	  else if ( location == 1 )
 | |
| 	  {
 | |
| 		LPC_IOCON->PIO1_14           &= ~0x07;
 | |
| 		LPC_IOCON->PIO1_14           |= 0x02;		/* Timer0_16 MAT1 */
 | |
| 	  }
 | |
| 	}
 | |
| 	if ( match_enable & 0x04 )
 | |
| 	{
 | |
| 	  /*  Timer0_16 I/O config */
 | |
| 	  if ( location == 0 )
 | |
| 	  {
 | |
| #ifdef __SWD_DISABLED
 | |
| 		LPC_IOCON->SWCLK_PIO0_10    &= ~0x07;
 | |
| 		LPC_IOCON->SWCLK_PIO0_10    |= 0x03;		/* Timer0_16 MAT2 */
 | |
| #endif	
 | |
| 	  }
 | |
| 	  else if ( location == 1 )
 | |
| 	  {
 | |
| 		LPC_IOCON->PIO1_15           &= ~0x07;
 | |
| 		LPC_IOCON->PIO1_15           |= 0x02;		/* Timer0_16 MAT2 */
 | |
| 	  }
 | |
| 	}
 | |
|   }
 | |
|   else if ( timer_num == 1 )
 | |
|   {
 | |
| 	if ( match_enable & 0x01 )
 | |
| 	{
 | |
| 	  /*  Timer1_16 I/O config */
 | |
| 	  if ( location == 0 )
 | |
| 	  {
 | |
| 		LPC_IOCON->PIO0_21           &= ~0x07;
 | |
| 		LPC_IOCON->PIO0_21           |= 0x01;		/* Timer1_16 MAT0 */
 | |
| 	  }
 | |
| 	}
 | |
| 	if ( match_enable & 0x02 )
 | |
| 	{
 | |
| 	  /*  Timer1_16 I/O config */
 | |
| 	  if ( location == 0 )
 | |
| 	  {
 | |
| 		LPC_IOCON->PIO0_22           &= ~0x07;
 | |
| 		LPC_IOCON->PIO0_22           |= 0x02;		/* Timer1_16 MAT1 */
 | |
| 	  }
 | |
| 	  else if ( location == 1 )
 | |
| 	  {
 | |
| 		LPC_IOCON->PIO1_23           &= ~0x07;
 | |
| 		LPC_IOCON->PIO1_23           |= 0x01;		/* Timer1_16 MAT1 */
 | |
| 	  }
 | |
| 	}
 | |
|   }
 | |
|   return;		
 | |
| }
 | |
| 
 | |
| /******************************************************************************
 | |
| ** Function name:		init_timer
 | |
| **
 | |
| ** Descriptions:		Initialize timer, set timer interval, reset timer,
 | |
| **						install timer interrupt handler
 | |
| **
 | |
| ** parameters:			timer number and timer interval
 | |
| ** Returned value:		None
 | |
| ** 
 | |
| ******************************************************************************/
 | |
| void init_timer16(uint8_t timer_num, uint32_t TimerInterval) 
 | |
| {
 | |
|   uint32_t i;
 | |
| 
 | |
|   if ( timer_num == 0 )
 | |
|   {
 | |
|     /* Some of the I/O pins need to be clearfully planned if
 | |
|     you use below module because JTAG and TIMER CAP/MAT pins are muxed. */
 | |
|     LPC_SYSCON->SYSAHBCLKCTRL |= (1<<7);
 | |
| 
 | |
|     LPC_CT16B0->MR0 = TimerInterval;
 | |
|     LPC_CT16B0->MR1 = TimerInterval;
 | |
| #if TIMER_MATCH
 | |
|     for ( i = 0; i < 4; i++ )
 | |
|     {
 | |
|       timer16_0_counter[i] = 0;
 | |
|     }
 | |
|     set_timer16_match(timer_num, 0x07, 0);
 | |
|     LPC_CT16B0->EMR &= ~(0xFF<<4);
 | |
|     LPC_CT16B0->EMR |= ((0x3<<4)|(0x3<<6)|(0x3<<8));
 | |
| #else
 | |
|     for ( i = 0; i < 4; i++ )
 | |
|     {
 | |
|       timer16_0_capture[i] = 0;
 | |
|     }
 | |
|     set_timer16_capture(timer_num, 0);
 | |
|     /* Capture 0 and 2 on rising edge, interrupt enable. */
 | |
|     LPC_CT16B0->CCR = (0x5<<0)|(0x5<<6);
 | |
| #endif
 | |
|     LPC_CT16B0->MCR = (0x3<<0)|(0x3<<3);  /* Interrupt and Reset on MR0 and MR1 */
 | |
| 		
 | |
|     /* Enable the TIMER0 Interrupt */
 | |
| #if NMI_ENABLED
 | |
|     NVIC_DisableIRQ(CT16B0_IRQn);
 | |
|     NMI_Init( CT16B0_IRQn );
 | |
| #else
 | |
|     NVIC_EnableIRQ(CT16B0_IRQn);
 | |
| #endif
 | |
|   }
 | |
|   else if ( timer_num == 1 )
 | |
|   {
 | |
|     /* Some of the I/O pins need to be clearfully planned if
 | |
|     you use below module because JTAG and TIMER CAP/MAT pins are muxed. */
 | |
|     LPC_SYSCON->SYSAHBCLKCTRL |= (1<<8);
 | |
|     LPC_CT16B1->MR0 = TimerInterval;
 | |
|     LPC_CT16B1->MR1 = TimerInterval;
 | |
| #if TIMER_MATCH
 | |
|     for ( i = 0; i < 4; i++ )
 | |
|     {
 | |
|       timer16_1_counter[i] = 0;
 | |
|     }
 | |
|     set_timer16_match(timer_num, 0x07, 0);
 | |
|     LPC_CT16B1->EMR &= ~(0xFF<<4);
 | |
|     LPC_CT16B1->EMR |= ((0x3<<4)|(0x3<<6)|(0x3<<8));
 | |
| #else
 | |
|     for ( i = 0; i < 4; i++ )
 | |
|     {
 | |
|       timer16_1_capture[i] = 0;
 | |
|     }
 | |
|     set_timer16_capture(timer_num, 0);
 | |
|     /* Capture 0 and 1 on rising edge, interrupt enable. */
 | |
|     LPC_CT16B1->CCR = (0x5<<0)|(0x5<<3);
 | |
| #endif
 | |
|     LPC_CT16B1->MCR = (0x3<<0)|(0x3<<3);  /* Interrupt and Reset on MR0 and MR1 */
 | |
| 
 | |
|     /* Enable the TIMER1 Interrupt */
 | |
| #if NMI_ENABLED
 | |
|     NVIC_DisableIRQ(CT16B1_IRQn);
 | |
|     NMI_Init( CT16B1_IRQn );
 | |
| #else
 | |
|     NVIC_EnableIRQ(CT16B1_IRQn);
 | |
| #endif
 | |
|   }
 | |
|   return;
 | |
| }
 | |
| 
 | |
| /******************************************************************************
 | |
| ** Function name:		init_timer16PWM
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| **
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| ** Descriptions:		Initialize timer as PWM
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| **
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| ** parameters:			timer number, period and match enable:
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| **						match_enable[0] = PWM for MAT0 
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| **						match_enable[1] = PWM for MAT1
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| **						match_enable[2] = PWM for MAT2
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| **			
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| ** Returned value:	None
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| ** 
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| ******************************************************************************/
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| void init_timer16PWM(uint8_t timer_num, uint32_t period, uint8_t match_enable, uint8_t cap_enabled)
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| {	
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|   disable_timer16(timer_num);
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| 
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|   if (timer_num == 1)
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|   {
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|     /* Some of the I/O pins need to be clearfully planned if
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|     you use below module because JTAG and TIMER CAP/MAT pins are muxed. */
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|     LPC_SYSCON->SYSAHBCLKCTRL |= (1<<8);
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| 		
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|     /* Setup the external match register */
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|     LPC_CT16B1->EMR = (1<<EMC3)|(1<<EMC2)|(1<<EMC1)|(2<<EMC0)|(1<<3)|(match_enable);
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| 		
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|     /* Setup the outputs */
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|     /* If match0 is enabled, set the output */
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|     set_timer16_match(timer_num, match_enable, 0 );
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| 		
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|     /* Enable the selected PWMs and enable Match3 */
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|     LPC_CT16B1->PWMC = (1<<3)|(match_enable);
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| 		
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|     /* Setup the match registers */
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|     /* set the period value to a global variable */
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|     timer16_1_period 	= period;
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|     LPC_CT16B1->MR3 	= timer16_1_period;
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|     LPC_CT16B1->MR0	= timer16_1_period/2;
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|     LPC_CT16B1->MR1	= timer16_1_period/2;
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|     LPC_CT16B1->MR2	= timer16_1_period/2;
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| 		
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|     /* Set match control register */
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|     LPC_CT16B1->MCR = 1<<10;// | 1<<9;				/* Reset on MR3 */
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| 		
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|     if (cap_enabled)
 | |
|     {
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| 	  /* Use location 0 for test. */
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| 	  set_timer16_capture( timer_num, 0 );
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|       LPC_CT16B1->IR = 0xF;							/* clear interrupt flag */
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| 			
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|       /* Set the capture control register */
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|       LPC_CT16B1->CCR = 7;
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| 			
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|     }
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|     /* Enable the TIMER1 Interrupt */
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|     NVIC_EnableIRQ(CT16B1_IRQn);
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|   }
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|   else
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|   {
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|     LPC_SYSCON->SYSAHBCLKCTRL |= (1<<7);
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| 		
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|     /* Setup the external match register */
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|     LPC_CT16B0->EMR = (1<<EMC3)|(1<<EMC2)|(1<<EMC1)|(1<<EMC0)|(1<<3)|(match_enable);
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| 		
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|     /* Setup the outputs */
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|     /* If match0 is enabled, set the output */
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|     set_timer16_match(timer_num, match_enable, 0 );
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| 			
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|     /* Enable the selected PWMs and enable Match3 */
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|     LPC_CT16B0->PWMC = (1<<3)|(match_enable);
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| 		
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|     /* Setup the match registers */
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|     /* set the period value to a global variable */
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|     timer16_0_period = period;
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|     LPC_CT16B0->MR3 = timer16_0_period;
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|     LPC_CT16B0->MR0 = timer16_0_period/2;
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|     LPC_CT16B0->MR1 = timer16_0_period/2;
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|     LPC_CT16B0->MR2 = timer16_0_period/2;
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| 		
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|     /* Set the match control register */
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|     LPC_CT16B0->MCR = 1<<10;				/* Reset on MR3 */
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| 		
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|     /* Enable the TIMER1 Interrupt */
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|     NVIC_EnableIRQ(CT16B0_IRQn);
 | |
|   }
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| }
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| 
 | |
| /******************************************************************************
 | |
| ** Function name:		pwm16_setMatch
 | |
| **
 | |
| ** Descriptions:		Set the pwm16 match values
 | |
| **
 | |
| ** parameters:			timer number, match numner and the value
 | |
| **
 | |
| ** Returned value:		None
 | |
| ** 
 | |
| ******************************************************************************/
 | |
| void setMatch_timer16PWM (uint8_t timer_num, uint8_t match_nr, uint32_t value)
 | |
| {
 | |
|   if (timer_num)
 | |
|   {
 | |
|     switch (match_nr)
 | |
|     {
 | |
|       case 0:
 | |
|         LPC_CT16B1->MR0 = value;
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|       break;
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|       case 1: 
 | |
|         LPC_CT16B1->MR1 = value;
 | |
|       break;
 | |
|       case 2:
 | |
|         LPC_CT16B1->MR2 = value;
 | |
|       break;
 | |
|       case 3: 
 | |
|         LPC_CT16B1->MR3 = value;
 | |
|       break;
 | |
|       default:
 | |
|         break;
 | |
|     }	
 | |
|   }
 | |
|   else 
 | |
|   {
 | |
|     switch (match_nr)
 | |
|     {
 | |
|       case 0:
 | |
|         LPC_CT16B0->MR0 = value;
 | |
|       break;
 | |
|       case 1: 
 | |
|         LPC_CT16B0->MR1 = value;
 | |
|       break;
 | |
|       case 2:
 | |
|         LPC_CT16B0->MR2 = value;
 | |
|       break;
 | |
|       case 3: 
 | |
|         LPC_CT16B0->MR3 = value;
 | |
|       break;
 | |
|       default:
 | |
|       break;
 | |
|     }	
 | |
|   }
 | |
| }
 | |
| 
 | |
| /******************************************************************************
 | |
| **                            End Of File
 | |
| ******************************************************************************/
 | 
