how to config the PWM out to P12 and control it in zstack？

Hi all

     i want to set the PWM output to the channel 0 at P12，i using the hal_timer.c API function ， and coding as like below：

  PERCFG |= BV(6);  // Select Timer 1 Alternative 2 location
  P1SEL |= BV(2);   // Set P1_2 as peripheral 
  P_HalTimer1Init(0);
  P_halTimer1SetChannelDuty(HAL_T1_CH0,50);

      P_HalTimer1Init(0); function is follow the hal_timer.c  ,And  it only  define the channel 0 In timer 1

void P_HalTimer1Init (halTimerCBack_t cBack)
{
  T1CCTL0 = 0;    /* Make sure interrupts are disabled */
  //T1CCTL1 = 0;    /* Make sure interrupts are disabled */
  //T1CCTL2 = 0;    /* Make sure interrupts are disabled */
  //T1CCTL3 = 0;    /* Make sure interrupts are disabled */
  //T1CCTL4 = 0;    /* Make sure interrupts are disabled */

  /* Setup prescale & clock for timer0 */
  halTimerRecord[HW_TIMER_1].prescale    = HAL_TIMER1_16_PRESCALE;
  halTimerRecord[HW_TIMER_1].clock       = HAL_TIMER_32MHZ;
  halTimerRecord[HW_TIMER_1].prescaleVal = HAL_TIMER1_16_PRESCALE_VAL;

  /* Setup Timer1 Channel structure */
  halTimer1Channel[0].TxCCTL =  TCHN_T1CCTL;
  halTimer1Channel[0].TxCCL =   TCHN_T1CCL;
  halTimer1Channel[0].TxCCH =   TCHN_T1CCH;

  halTimerRecord[HW_TIMER_1].configured    = TRUE;
  halTimerRecord[HW_TIMER_1].opMode        = HAL_TIMER1_OPMODE_UPDOWN;
  halTimerRecord[HW_TIMER_1].channel       = 0;
  halTimerRecord[HW_TIMER_1].channelMode   = 0;
  halTimerRecord[HW_TIMER_1].intEnable     = FALSE;
  halTimerRecord[HW_TIMER_1].callBackFunc  = cBack;
  Timer1MaxCount = halTimer1SetPeriod (4292); // 233Hz

  halTimerSetPrescale (HW_TIMER_1, halTimerRecord[HW_TIMER_1].prescale);
  halTimerSetChannelMode (HW_TIMER_1, halTimerRecord[HW_TIMER_1].channelMode);

  // CHANNEL O, RFIRQ=0, IM=0, TOGGLE MODE
  halTimer1SetChannelCCTL(HAL_T1_CH0, 0, 0, HAL_TIMER1_CH0_CMP_MODE_TOG_ON_COMP, 1, HAL_TIMER1_CH_CAP_MODE_NO);

  //halTimer1SetChannelCCTL(HAL_T1_CH0, 0, 1, HAL_TIMER1_CH0_CMP_MODE_SET_ON_COMP, 1, HAL_TIMER1_CH_CAP_MODE_NO);
  //halTimer1SetChannelCCTL(HAL_T1_CH1, 0, 1, HAL_TIMER1_CHn_CMP_MODE_CLR_ON_COMP_SET_ON_0, 1, HAL_TIMER1_CH_CAP_MODE_NO);
  //halTimer1SetChannelCCTL(HAL_T1_CH2, 0, 1, HAL_TIMER1_CHn_CMP_MODE_CLR_ON_COMP_SET_ON_0, 1, HAL_TIMER1_CH_CAP_MODE_NO);
  //halTimer1SetChannelCCTL(HAL_T1_CH3, 0, 1, HAL_TIMER1_CHn_CMP_MODE_CLR_ON_COMP_SET_ON_0, 1, HAL_TIMER1_CH_CAP_MODE_NO);
  //halTimer1SetChannelCCTL(HAL_T1_CH4, 0, 1, HAL_TIMER1_CHn_CMP_MODE_CLR_ON_COMP_SET_ON_0, 1, HAL_TIMER1_CH_CAP_MODE_NO);
    
  //P_halTimer1SetChannelDuty (HAL_T1_CH1, 0);
  //P_halTimer1SetChannelDuty (HAL_T1_CH2, 0);
  //P_halTimer1SetChannelDuty (HAL_T1_CH3, 0);
  //P_halTimer1SetChannelDuty (HAL_T1_CH4, 0);


    /* set timer 1 operating mode */
  T1CTL &= ~(HAL_TIMER1_OPMODE_BITS);
  T1CTL |= HAL_TIMER1_OPMODE_UPDOWN;

}

    But  there is nothing out in the P12 ?

    and  how could i  stop and start  it if it work ?

BR!