timers.c

一个基于AD9954的430单片机编程

/*------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------*/
#include  "includes.h"


#if TA_EN
/*------------------------------------------------------------------------------------------------------
功能：配置计时器A
入口：
出口：
------------------------------------------------------------------------------------------------------*/
void InitTA(void)
{
  P1DIR=0x07;                           //bit 0,1,2 out
  TACTL=TASSEL_1 | ID_0+MC_2;
  TACCTL0=CCIE;
  TACCR0=1000;
  TACCTL1=CCIE;
  TACCR1=2000;
  TACCTL2=CCIE;
  TACCR2=3000;
}

/*------------------------------------------------------------------------------------------------------
功能：计时器A的TACCR0 CCIFG中断服务历程
入口：无
出口：无
------------------------------------------------------------------------------------------------------*/
#pragma vector=TIMERA0_VECTOR
__interrupt void IntTACCR0(void)
{
  P1OUT=0x01;
  TACCR0+=3000;
}

/*------------------------------------------------------------------------------------------------------
功能：计时器A的TAI中断服务历程
入口：无
出口：无
------------------------------------------------------------------------------------------------------*/
#pragma vector=TIMERA1_VECTOR
__interrupt void IntTAI(void)
{
  if((TAIV&0x0002)!=0)
  {
    P1OUT=0x02;
    TACCR1+=3000;
  }
  else
  {
    P1OUT=0x04;
    TACCR2+=3000;
  }
}

#endif

#if TB_EN
/*------------------------------------------------------------------------------------------------------
功能：配置计时器B
入口：
出口：
------------------------------------------------------------------------------------------------------*/
void InitTB(void)
{
  P2DIR=0x04;                           //bit 1 out 
  P2SEL=0x04;                           //TB2 out
  TBCTL=TBSSEL_1 | MC_3;
  TBCCTL1=OUTMOD_4;
  TBCCR0=10000;
  TBCCR1=2000;
}

/*------------------------------------------------------------------------------------------------------
功能：计时器B的TBCCR0 CCIFG中断服务历程
入口：无
出口：无
------------------------------------------------------------------------------------------------------*/
#pragma vector=TIMERB0_VECTOR
__interrupt void IntTBCCR0(void)
{
  
}

/*------------------------------------------------------------------------------------------------------
功能：计时器B的TBI中断
入口：无
出口：无
------------------------------------------------------------------------------------------------------*/
#pragma vector=TIMERB1_VECTOR
__interrupt void IntTBI(void)
{
  
}

#endif