MSP430F149单片机定时器B的用法

追梦人_电子设计 · 发表于 2016-11-10 18:41:45

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有没有谁知道MSP430F149单片机定时器B的用法，望知道的给我告知一下，感谢

追梦人_电子设计 · 发表于 2016-11-10 18:42:26

谢谢了

wwwqqqqqqcn · 发表于 2016-11-11 17:44:41

youqingbangding

meta59 · 发表于 2016-11-25 19:57:34

void setup_clocks_xt2 (void) {
  int i;
  BCSCTL1 = DIVA_0 ;
  do {
IFG1 &= ~OFIFG;                         // Clear OSCFault flag
for (i = 50; i > 0; i--);                // Time for flag to set
  }
  while ((IFG1 & OFIFG));
  BCSCTL2 = SELM_2 + DIVM_0 + SELS + DIVS_3;
}
// ===========================================
// Setup CPU timers
// ===========================================
void setup_timers(void) {

  TBCTL = TBSSEL_2 + MC_1 + TBIE;
  TBCCTL0 = CM_0 +  CCIS_2 + CCIE;
  TBR=0;
  TBCCR0 = 13824; //11059200Hz /8/13824=100Hz for 10ms time base .
  TBCCTL1 = TBCCTL2 = TBCCTL3 = TBCCTL4 = TBCCTL5 = TBCCTL6 = CM_0 + CLLD_2 + CCIS_2;
  TBCCR1 = TBCCR2 = TBCCR3 = TBCCR4 = TBCCR5 = TBCCR6 = 13824;
}

// Timer B0 interrupt service routine 10 time base
#pragma vector=TIMERB0_VECTOR
__interrupt void Timer_B0 (void) {
//keytimebase++;
current_on();
rep_timer1++; rep_timer2++;
key_sel_timer++;
backlight_timer++; battery_timer++; bootup_timer++;
if (display_count) display_count--; else display_refresh();
if (delay_count) delay_count--;

mstimer_count++;
if (mstimer_count>=100) { // 1 second
mstimer_count=0;
menu_scale_timer++;
if (menu_scale_timer>30) { // 30 seconds
menu_scale_timer=0;
menu_scale=0;
}
return_timer++;
if (return_timer>=30) {
return_timer=0;
return_detector();
}
}

}

// CCR2 to CCR6 you can control by PWM mode
// or time phase control
#pragma vector=TIMERB1_VECTOR
__interrupt void Timer_B1 (void) {
  switch( TBIV ) {
  case  2: // CCR1 interrupt (never)

    break;                      //
  case  4: // CCR2 interrupt
    break;
  case  6: // CCR3 interrupt
    break;
  case  8: // CCR4 interrupt
    break;
  case 10: // CCR5 interrupt


   break;
  case  12: // CCR6 interrupt
    break;
  case  14: // timer overflow same as timer B0

    break;
  default : break;
  }
}