text: /*
   * Copyright (c) 2018, Texas Instruments Incorporated - http://www.ti.com/
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the name of the copyright holder nor the names of its
   *    contributors may be used to endorse or promote products derived
   *    from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
   * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
   * OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  /**
   * \addtogroup cc13xx-cc26xx-cpu
   * @{
   *
   * \file
   *        Header with configuration defines for the Contiki system.
   * \author
   *        Edvard Pettersen <e.pettersen@ti.com>
   */
  /*---------------------------------------------------------------------------*/
  #ifndef CC13XX_CC26XX_DEF_H_
  #define CC13XX_CC26XX_DEF_H_
  /*---------------------------------------------------------------------------*/
  #include <ti/devices/DeviceFamily.h>
  /*---------------------------------------------------------------------------*/
  #if (DeviceFamily_PARENT == DeviceFamily_PARENT_CC13X0_CC26X0)
  #include <cm3/cm3-def.h>
  #elif (DeviceFamily_PARENT == DeviceFamily_PARENT_CC13X2_CC26X2)
  #include <cm4/cm4-def.h>
  #endif
  /*---------------------------------------------------------------------------*/
  #include <stddef.h>
  #include <stdint.h>
  /*---------------------------------------------------------------------------*/
  #define RTIMER_ARCH_SECOND               65536
  /*---------------------------------------------------------------------------*/
  #define INT_MASTER_CONF_STATUS_DATATYPE  uintptr_t
  /*---------------------------------------------------------------------------*/
  /* TSCH related defines */
  
  /* Delay between GO signal and SFD */
  #define RADIO_DELAY_BEFORE_TX       ((unsigned)US_TO_RTIMERTICKS(81))
  /* Delay between GO signal and start listening.
   * This value is so small because the radio is constantly on within each timeslot. */
  #define RADIO_DELAY_BEFORE_RX       ((unsigned)US_TO_RTIMERTICKS(15))
  /* Delay between the SFD finishes arriving and it is detected in software. */
  #define RADIO_DELAY_BEFORE_DETECT   ((unsigned)US_TO_RTIMERTICKS(352))
  
  /* Timer conversion; radio is running at 4 MHz */
  #define RAT_SECOND            4000000u
  #define RAT_TO_RTIMER(x)      ((uint32_t)(((uint64_t)(x)*(RTIMER_SECOND / 256)) / (RAT_SECOND / 256)))
  #define USEC_TO_RAT(x)        ((x) * 4)
  
  #if (RTIMER_SECOND % 256) || (RAT_SECOND % 256)
  #error RAT_TO_RTIMER macro must be fixed!
  #endif
  
  /* The PHY header (preamble + SFD, 4+1 bytes) duration is equivalent to 10 symbols */
  #define RADIO_IEEE_802154_PHY_HEADER_DURATION_USEC 160
  
  /* Do not turn off TSCH within a timeslot: not enough time */
  #define TSCH_CONF_RADIO_ON_DURING_TIMESLOT 1
  
  /* Disable TSCH frame filtering */
  #define TSCH_CONF_HW_FRAME_FILTERING  0
  
  /* Use hardware timestamps */
  #ifndef TSCH_CONF_RESYNC_WITH_SFD_TIMESTAMPS
  #define TSCH_CONF_RESYNC_WITH_SFD_TIMESTAMPS 1
  #define TSCH_CONF_TIMESYNC_REMOVE_JITTER 0
  #endif
  
  #ifndef TSCH_CONF_BASE_DRIFT_PPM
  /*
   * The drift compared to "true" 10ms slots.
   * Enable adaptive sync to enable compensation for this.
   * Slot length 10000 usec
   *             328 ticks
   * Tick duration 30.517578125 usec
   * Real slot duration 10009.765625 usec
   * Target - real duration = -9.765625 usec
   * TSCH_CONF_BASE_DRIFT_PPM -977
   */
  #define TSCH_CONF_BASE_DRIFT_PPM -977
  #endif
  
  /* 10 times per second */
  #ifndef TSCH_CONF_CHANNEL_SCAN_DURATION
  #define TSCH_CONF_CHANNEL_SCAN_DURATION (CLOCK_SECOND / 10)
  #endif
  
  /* Slightly reduce the TSCH guard time (from 2200 usec to 1800 usec) to make sure
   * the CC26xx radio has sufficient time to start up. */
  #ifndef TSCH_CONF_RX_WAIT
  #define TSCH_CONF_RX_WAIT 1800
  #endif
  /*---------------------------------------------------------------------------*/
  /* Path to CMSIS header */
  #if (DeviceFamily_PARENT == DeviceFamily_PARENT_CC13X0_CC26X0)
  #define CMSIS_CONF_HEADER_PATH              "cc13x0-cc26x0-cm3.h"
  #elif (DeviceFamily_PARENT == DeviceFamily_PARENT_CC13X2_CC26X2)
  #define CMSIS_CONF_HEADER_PATH              "cc13x2-cc26x2-cm4.h"
  #endif
  /*---------------------------------------------------------------------------*/
  /* Path to headers with implementation of mutexes and memory barriers */
  #define MUTEX_CONF_ARCH_HEADER_PATH          "mutex-cortex.h"
  #define MEMORY_BARRIER_CONF_ARCH_HEADER_PATH "memory-barrier-cortex.h"
  /*---------------------------------------------------------------------------*/
  #endif /* CC13XX_CC26XX_DEF_H_ */
  /*---------------------------------------------------------------------------*/
  /** @} */
  