[讨论]ECT无法实现，PWM也出不来，又要请教了。

讨论, ECT, 请教, PWM

#include <hidef.h> /* common defines and macros */
#include <mc9s12c32.h> /* derivative information */

#include "main_asm.h" /* interface to the assembly module */

#pragma LINK_INFO DERIVATIVE "mc9s12c32"

unsigned char a,b,c;
unsigned char pwm0,pwm1,pwm2,pwm3,pwm4,pwm5,pwm6,pwm7;

volatile void RTI_Init(void)
{
    CRGINT_RTIE=1;
    CRGFLG_RTIF=0;
    RTICTL=0b01000000;
}

volatile void ECT_Init(void)
{
TSCR2=0b10001011;
TSCR1_TEN=1;
}

volatile void PWM_Init(void);

void main(void)
{
/* put your own code here */
DDRA=0b00111111;
DDRB=0b00111111;
DDRT=0b00011111;

/* RTI_Init();*/
ECT_Init();
ATD_Init();

pwm0=0;
pwm1=2;
pwm2=4;
pwm3=8;
pwm4=10;

PWM_Init();

PORTA=0;
PORTB=0;

EnableInterrupts;
for(;;)
{
    if(b<127)
      {
        PORTA_BIT0=0;
        PORTB_BIT4=1;
      }else
      {
        PORTA_BIT0=1;
        PORTB_BIT4=0;
      }
} /* wait forever */
}

/*volatile void interrupt 7 RTI_Int(void)
{
    CRGFLG_RTIF=1;
    b++;
}*/

volatile void interrupt 16 ECT_Int(void)
{
    TFLG2_TOF=1;
    b++;
}

volatile void PWM_Init(void)
{
    PWME=0b00000000;
    PWMPRCLK=0b00110011;
    PWMSCLA=0b00001111;
    PWMSCLB=0b00001111;
    PWMCLK=0b00000001;
    PWMPOL=0b00000111;
    PWMCAE=0b00000000;

    PWMPER0=250WMDTY0=0;
    PWMPER1=250WMDTY0=0;
    PWMPER2=250WMDTY0=0;

    PWMDTY0=62;
    PWMDTY1=125;
    PWMDTY2=187;
    PWME=0b00000111;
}

代码如上，想试验ECT的时间中断和PWM输出，都无法实现。RTI倒实现的比较方便（暂时先屏蔽了），麻烦大侠帮我看看，奇怪死了。