/******************** (C) COPYRIGHT 2010 Embest Info&Tech Co.,LTD. ************
* 文件名: timer16.c
* 作者  : Wuhan R&D Center, Embest
* 日期  : 01/18/2010
* 描述  : 16位定時(shí)器相關(guān)的函數(shù)實(shí)現(xiàn)
*******************************************************************************
*******************************************************************************
* 歷史:
* 01/18/2010		 : V1.0		   初始版本
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "LPC11xx.h"
#include "timer16.h"

volatile uint32_t timer16_0_counter = 0;
volatile uint32_t timer16_1_counter = 0;



/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/


/**
  * @函數(shù)名：delayMs
  * @描述：以間隔毫秒啟動(dòng)定時(shí)器直到時(shí)間耗完
  * @參數(shù)：定時(shí)器號(hào)，以毫秒為單位的延遲時(shí)間
  * @返回值：無
  */
void delayMs(uint8_t timer_num, uint32_t delayInMs)
{
  if (timer_num == 0)
  {
    /* 建立定時(shí)器0的延遲 */
    /* 復(fù)位定時(shí)器 */
	LPC_TMR16B0->TCR = 0x02;	
    /* 設(shè)置預(yù)分頻器為0 */
	LPC_TMR16B0->PR  = 0x00;		
    LPC_TMR16B0->MR0 = delayInMs * (SystemAHBFrequency / 1000);
    /* 復(fù)位所有的中斷 */
	LPC_TMR16B0->IR  = 0xff;		
    /* 停止定時(shí)器匹配 */
	LPC_TMR16B0->MCR = 0x04;		
    	/* 啟動(dòng)定時(shí)器 */
	LPC_TMR16B0->TCR = 0x01;	
    /* 等待直到延遲時(shí)間消耗完 */
    while (LPC_TMR16B0->TCR & 0x01);
  }
  else if (timer_num == 1)
  {
    /* 建立定時(shí)器1的延遲 */
    /* 復(fù)位定時(shí)器 */
    LPC_TMR16B1->TCR = 0x02;
    /* 設(shè)置預(yù)分頻器為0 */		
    LPC_TMR16B1->PR  = 0x00;		
    LPC_TMR16B1->MR0 = delayInMs * (SystemAHBFrequency / 1000);
    /* 復(fù)位所有的中斷 */
    LPC_TMR16B1->IR  = 0xff;		
    /* 停止定時(shí)器匹配 */
    LPC_TMR16B1->MCR = 0x04;		
    /* 啟動(dòng)定時(shí)器 */
    LPC_TMR16B1->TCR = 0x01;		
     /* 等待直到延遲時(shí)間消耗完 */
    while (LPC_TMR16B1->TCR & 0x01);
  }
  return;
}


/**
  * @函數(shù)名：TIMER_0_IRQHandler
  * @描述：定時(shí)器/計(jì)數(shù)器0中斷例程在60 MHz CPU時(shí)鐘下每10ms執(zhí)行一次
  * @參數(shù)：無
  * @返回值：無
  */
void TIMER16_0_IRQHandler(void)
{ 
	/* 清中斷標(biāo)志位 */	  
  LPC_TMR16B0->IR = 1;			
  timer16_0_counter++;
  return;
}


/**
  * @函數(shù)名：TIMER_1_IRQHandler
  * @描述：定時(shí)器/計(jì)數(shù)器1中斷例程在60 MHz CPU時(shí)鐘下每10ms執(zhí)行一次
  * @參數(shù)：無
  * @返回值：無
  */
void TIMER16_1_IRQHandler(void)
{  
  LPC_TMR16B1->IR = 1;			/* clear interrupt flag */
  timer16_1_counter++;
  return;
}

/**
  * @函數(shù)名：enable_timer
  * @描述：使能定時(shí)器
  * @參數(shù)：定時(shí)器號(hào)：0 或 1
  * @返回值：無
  */
void enable_timer16(uint8_t timer_num)
{
  if ( timer_num == 0 )
  {
    LPC_TMR16B0->TCR = 1;
  }
  else
  {
    LPC_TMR16B1->TCR = 1;
  }
  return;
}


/**
  * @函數(shù)名：disable_timer
  * @描述：禁止定時(shí)器
  * @參數(shù)：定時(shí)器號(hào)：0 或 1
  * @返回值：無
  */
void disable_timer16(uint8_t timer_num)
{
  if ( timer_num == 0 )
  {
    LPC_TMR16B0->TCR = 0;
  }
  else
  {
    LPC_TMR16B1->TCR = 0;
  }
  return;
}


/**
  * @函數(shù)名：reset_timer
  * @描述：重啟定時(shí)器
  * @參數(shù)：定時(shí)器號(hào)：0 或 1
  * @返回值：無
  */
void reset_timer16(uint8_t timer_num)
{
  uint32_t regVal;

  if ( timer_num == 0 )
  {
    regVal = LPC_TMR16B0->TCR;
    regVal |= 0x02;
    LPC_TMR16B0->TCR = regVal;
  }
  else
  {
    regVal = LPC_TMR16B1->TCR;
    regVal |= 0x02;
    LPC_TMR16B1->TCR = regVal;
  }
  return;
}


/**
  * @函數(shù)名：init_timer
  * @描述：初始化定時(shí)器，設(shè)置定時(shí)器間隔，復(fù)位定時(shí)器設(shè)置定時(shí)器中斷例程
  * @參數(shù)：定時(shí)器號(hào)和定時(shí)器間隔
  * @返回值：無
  */
void init_timer16(uint8_t timer_num, uint32_t TimerInterval) 
{
  if ( timer_num == 0 )
  {
    /* 因?yàn)镴TAG和定時(shí)器CAP/MAT管腳是混合使用的如果在使用了該模塊是一些 I/O 管腳語言仔細(xì)的配置。 */
    LPC_SYSCON->SYSAHBCLKCTRL |= (1<<7);
    /*  Timer0_16 I/O 配置 */
		/* Timer0_16 CAP0 */
	LPC_IOCON->PIO0_2           &= ~0x07;	
    LPC_IOCON->PIO0_2           |= 0x02;	
    	/* Timer0_16 MAT0 */
	LPC_IOCON->PIO0_8           &= ~0x07;	
    LPC_IOCON->PIO0_8           |= 0x02;	
    	/* Timer0_16 MAT1 */
	LPC_IOCON->PIO0_9           &= ~0x07;
    LPC_IOCON->PIO0_9           |= 0x02;	
#ifdef __JTAG_DISABLED
   	/* Timer0_16 MAT2 */
    LPC_IOCON->JTAG_TCK_PIO0_10 &= ~0x07;
    LPC_IOCON->JTAG_TCK_PIO0_10 |= 0x03;		
#endif	

    timer16_0_counter = 0;
    LPC_TMR16B0->MR0 = TimerInterval;
//	LPC_TMR16B0->EMR &= ~(0xFF<<4);
//	LPC_TMR16B0->EMR |= ((0x3<<4)|(0x3<<6));
   		/* MR0上的中斷和復(fù)位  */
    LPC_TMR16B0->MCR = 3;			

    /* 使能TIMER0中斷 */
    NVIC_EnableIRQ(TIMER_16_0_IRQn);
  }
  else if ( timer_num == 1 )
  {
    /* 因?yàn)镴TAG和定時(shí)器CAP/MAT管腳是混合使用的如果在使用了該模塊是一些 I/O 管腳語言仔細(xì)的配置。 */
    LPC_SYSCON->SYSAHBCLKCTRL |= (1<<8);
    	/*  Timer1_16 I/O 配置 */
		/* Timer1_16 CAP0 */
	LPC_IOCON->PIO1_8           &= ~0x07;
    LPC_IOCON->PIO1_8           |= 0x01;	
    	/* Timer1_16 MAT0 */
	LPC_IOCON->PIO1_9           &= ~0x07;	
    LPC_IOCON->PIO1_9           |= 0x01;	
    	/* Timer1_16 MAT1 */
	LPC_IOCON->PIO1_10          &= ~0x07;
    LPC_IOCON->PIO1_10          |= 0x02;		

    timer16_1_counter = 0;
    LPC_TMR16B1->MR0 = TimerInterval;
//	LPC_TMR16B1->EMR &= ~(0xFF<<4);
//	LPC_TMR16B1->EMR |= ((0x3<<4)|(0x3<<6));
    /* MR0上的中斷和復(fù)位  */
	LPC_TMR16B1->MCR = 3;				

    /* 使能TIMER0中斷 */
    NVIC_EnableIRQ(TIMER_16_1_IRQn);
  }
  return;
}

/**
  * @}
  */ 

/**
  * @}
  */ 
/************* (C) COPYRIGHT 2010 Wuhan R&D Center, Embest *****文件結(jié)束*******/