C++ (Cpp) BSP430_CLOCK_OSC_CLEAR_FAULT_NI Examples

Example #1

File: fllplus.c Project: shiohuang/bsp430

int
iBSP430clockConfigureLFXT1_ni (int enablep,
                               int loop_limit)
{
  int loop_delta;
  int rc = 0;

  BSP430_CLOCK_CLEAR_FAULTS_NI();
  if (enablep && (0 != loop_limit)) {
    rc = iBSP430platformConfigurePeripheralPins_ni(BSP430_PERIPH_LFXT1, 0, 1);
    if (0 == rc) {
      loop_delta = (0 < loop_limit) ? 1 : 0;

      FLL_CTL0 = (FLL_CTL0 & ~(OSCCAP0 | OSCCAP1 | XTS_FLL)) | BSP430_CLOCK_LFXT1_XCAP;
      do {
        BSP430_CLOCK_CLEAR_FAULTS_NI();
        loop_limit -= loop_delta;
        BSP430_CORE_WATCHDOG_CLEAR();
        BSP430_CORE_DELAY_CYCLES(BSP430_CLOCK_LFXT1_STABILIZATION_DELAY_CYCLES);
      } while (BSP430_FLLPLUS_LFXT1_IS_FAULTED_NI() && (0 != loop_limit));

      rc = ! BSP430_FLLPLUS_LFXT1_IS_FAULTED_NI();
    }
  }
  BSP430_CLOCK_OSC_CLEAR_FAULT_NI();
  if (! rc) {
    (void)iBSP430platformConfigurePeripheralPins_ni(BSP430_PERIPH_LFXT1, 0, 0);
    FLL_CTL0 &= ~(OSCCAP0 | OSCCAP1);
  }
  return rc;
}

Example #2

File: bc2.c Project: shiohuang/bsp430

int
iBSP430clockConfigureLFXT1_ni (int enablep,
                               int loop_limit)
{
  int loop_delta;
  int rc = 0;

  BSP430_CLOCK_CLEAR_FAULTS_NI();
  if (enablep && (0 != loop_limit)) {
    rc = iBSP430platformConfigurePeripheralPins_ni(BSP430_PERIPH_LFXT1, 0, 1);
    if (0 == rc) {
      loop_delta = (0 < loop_limit) ? 1 : 0;

      /* See whether the crystal is populated and functional.  Do
       * this with the DCO reset to the power-up configuration,
       * where clock should be nominal 1 MHz.
       *
       * @TODO: Preserve XT2 configuration */
      BCSCTL3 = BSP430_CLOCK_LFXT1_XCAP;
      do {
        loop_limit -= loop_delta;
        BSP430_CORE_WATCHDOG_CLEAR();
        BSP430_CORE_DELAY_CYCLES(BSP430_CLOCK_LFXT1_STABILIZATION_DELAY_CYCLES);
      } while ((BSP430_BC2_LFXT1_IS_FAULTED_NI()) && (0 != loop_limit));
      rc = ! BSP430_BC2_LFXT1_IS_FAULTED_NI();
    }
  }
  BSP430_CLOCK_OSC_CLEAR_FAULT_NI();
  if (! rc) {
    (void)iBSP430platformConfigurePeripheralPins_ni(BSP430_PERIPH_LFXT1, 0, 0);
    /* Explicitly fall back to VLOCLK and disable capacitors */
    BCSCTL3 = LFXT1S_2;
  }
  return rc;
}

Example #3

File: cs4.c Project: pabigot/bsp430

int
iBSP430clockConfigureLFXT1_ni (int enablep,
                               int loop_limit)
{
  int loop_delta;
  int rc = 0;

  BSP430_CLOCK_CLEAR_FAULTS_NI();

  if (enablep && (0 != loop_limit)) {
    rc = iBSP430platformConfigurePeripheralPins_ni(BSP430_PERIPH_LFXT1, 0, 1);
    if (0 == rc) {
      loop_delta = (0 < loop_limit) ? 1 : 0;

      /* Low frequency XT1 needed.  Spin at high drive to stability, then
       * drop back. */
      CSCTL6 = XT1DRIVE_3 | (CSCTL6 & ~(XTS | XT1BYPASS | XT1AGCOFF | XT1AUTOOFF));
      do {
        BSP430_CLOCK_CLEAR_FAULTS_NI();
        loop_limit -= loop_delta;
        BSP430_CORE_WATCHDOG_CLEAR();
        BSP430_CORE_DELAY_CYCLES(BSP430_CLOCK_LFXT1_STABILIZATION_DELAY_CYCLES);
      } while ((BSP430_CS4_LFXT1_IS_FAULTED_NI()) && (0 != loop_limit));
      rc = ! BSP430_CS4_LFXT1_IS_FAULTED_NI();
    }
  }

  BSP430_CLOCK_OSC_CLEAR_FAULT_NI();
  CSCTL6 &= ~XT1DRIVE_3;
  if (! rc) {
    (void)iBSP430platformConfigurePeripheralPins_ni(BSP430_PERIPH_LFXT1, 0, 0);
    /* Disable as an indication that XIN is not enabled.  Also remove
     * capacitance setting. */
    CSCTL6 = XT1BYPASS | (CSCTL6 & ~(XT1DRIVE0 | XT1DRIVE1));
  }
  return rc;
}