/**************************************************************************************************

  Copyright 2007 Texas Instruments Incorporated.  All rights reserved.

  IMPORTANT: Your use of this Software is limited to those specific rights granted under
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/* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 *   BSP (Board Support Package)
 *   Target : Texas Instruments Chipcon SmartRFCCxx10
 *   Top-level board code file.
 * =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 */


/* ------------------------------------------------------------------------------------------------
 *                                            Local Variables
 * ------------------------------------------------------------------------------------------------
 */
#if defined(SW_TIMER)
static uint8_t sIterationsPerUsec = 0;
#endif

/**************************************************************************************************
 * @fn          BSP_InitBoard
 *
 * @brief       Initialize the board.
 *
 * @param       none
 *
 * @return      none
 **************************************************************************************************
 */
void BSP_InitBoard(void)
{
#if defined(SW_TIMER)
#define MHZ_CLOCKS_PER_USEC      BSP_CLOCK_MHZ
#define MHZ_CLOCKS_PER_ITERATION 35

  sIterationsPerUsec = (uint8_t)(((MHZ_CLOCKS_PER_USEC)/(MHZ_CLOCKS_PER_ITERATION))+.5);

  if (!sIterationsPerUsec) 
  {
    sIterationsPerUsec = 1;
  }
#endif   /* SW_TIMER */
}

/**************************************************************************************************
 * @fn          BSP_Delay
 *
 * @brief       Sleep for the requested amount of time.
 *
 * @param       # of microseconds to sleep.
 *
 * @return      none
 **************************************************************************************************
 */
void BSP_Delay(uint16_t usec)
#if !defined(SW_TIMER)
{
#if (defined MRFI_CC2510 || defined MRFI_CC1110)
  uint8_t tickCount;

  tickCount = (usec * BSP_CLOCK_MHZ);     /* Calculate the tick count. */
  T3CTL &= ~(BV(4));                      /* Stop the timer. */
  TIMIF &= ~(BV(0));                      /* Clear the interrupt flag. */
  T3CTL |= BV(2);                         /* Reset the count value. */
  T3CC0  = tickCount;                     /* Set the compare value. */
  T3CTL  = (T3CTL & (~(0x03))) | 0x02;    /* Set modulo mode. */
  T3CTL |= BV(4);                         /* Start the timer. */

  while( !(TIMIF & BV(0)) );              /* Wait till interrupt flag is set. i.e. count is reached. */

  T3CTL &= ~(BV(4));                      /* Stop the timer. */
  TIMIF &= ~(BV(0));                      /* Clear the interrupt flag. */
#else
#error ERROR: No BSP_Delay() defined for HW Timer
#endif
  return;
}

#else   /* !SW_TIMER */

{
  /* Declared 'volatile' in case User optimizes for speed. This will
   * prevent the optimizer from eliminating the loop completely. But
   * it also generates more code...
   */
  volatile uint16_t repeatCount = sIterationsPerUsec*usec;

  while (repeatCount--) ;

  return;
}

#endif   /* !SW_TIMER */

