Contiki-NG
arch
cpu
nrf52840
nrf52840-def.h
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/*
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* Copyright (c) 2017, George Oikonomou - http://www.spd.gr
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*---------------------------------------------------------------------------*/
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#ifndef NRF52840_DEF_H_
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#define NRF52840_DEF_H_
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/*---------------------------------------------------------------------------*/
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#include "
cm4/cm4-def.h
"
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/*---------------------------------------------------------------------------*/
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/* Path to headers with implementation of mutexes, atomic and memory barriers */
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#define MUTEX_CONF_ARCH_HEADER_PATH "mutex-cortex.h"
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#define ATOMIC_CONF_ARCH_HEADER_PATH "atomic-cortex.h"
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#define MEMORY_BARRIER_CONF_ARCH_HEADER_PATH "memory-barrier-cortex.h"
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/*---------------------------------------------------------------------------*/
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/* Do the math in 32bits to save precision.
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* Round to nearest integer rather than truncate. */
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#define US_TO_RTIMERTICKS(US) ((US) >= 0 ? \
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(((int32_t)(US) * (RTIMER_ARCH_SECOND) + 500000) / 1000000L) : \
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((int32_t)(US) * (RTIMER_ARCH_SECOND) - 500000) / 1000000L)
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#define RTIMERTICKS_TO_US(T) ((T) >= 0 ? \
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(((int32_t)(T) * 1000000L + ((RTIMER_ARCH_SECOND) / 2)) / (RTIMER_ARCH_SECOND)) : \
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((int32_t)(T) * 1000000L - ((RTIMER_ARCH_SECOND) / 2)) / (RTIMER_ARCH_SECOND))
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/* A 64-bit version because the 32-bit one cannot handle T >= 4295 ticks.
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Intended only for positive values of T. */
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#define RTIMERTICKS_TO_US_64(T) ((uint32_t)(((uint64_t)(T) * 1000000 + ((RTIMER_ARCH_SECOND) / 2)) / (RTIMER_ARCH_SECOND)))
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/*---------------------------------------------------------------------------*/
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#define RADIO_PHY_OVERHEAD 3
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#define RADIO_BYTE_AIR_TIME 32
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#define RADIO_SHR_LEN 5
/* Synch word + SFD */
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#define RADIO_DELAY_BEFORE_TX \
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((unsigned)US_TO_RTIMERTICKS(RADIO_SHR_LEN * RADIO_BYTE_AIR_TIME))
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/* Very conservative value moved over from CC2538 */
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#define RADIO_DELAY_BEFORE_RX ((unsigned)US_TO_RTIMERTICKS(250))
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#define RADIO_DELAY_BEFORE_DETECT 0
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#define TSCH_CONF_HW_FRAME_FILTERING 0
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#define TSCH_CONF_RADIO_ON_DURING_TIMESLOT 1
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/* Use hardware timestamps.
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* Disabling this greatly impacts TSCH sync, especially on preview devkits.
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*/
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#ifndef TSCH_CONF_RESYNC_WITH_SFD_TIMESTAMPS
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#define TSCH_CONF_RESYNC_WITH_SFD_TIMESTAMPS 1
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#define TSCH_CONF_TIMESYNC_REMOVE_JITTER 0
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#endif
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#ifndef TSCH_CONF_BASE_DRIFT_PPM
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/*
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* The drift compared to "true" 10ms slots.
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* Enable adaptive sync to enable compensation for this.
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* Slot length 10000 usec
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* 1000000 / 62500 = 16 usec / rtimer tick
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* 10 ms is 625 ticks, exactly
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* Real slot duration 10000 usec
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*/
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#define TSCH_CONF_BASE_DRIFT_PPM 0
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#endif
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/*---------------------------------------------------------------------------*/
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/* Enable S/W ACKs with CSMA */
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#define CSMA_CONF_SEND_SOFT_ACK 1
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/*---------------------------------------------------------------------------*/
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#define RTIMER_ARCH_SECOND 62500
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/*---------------------------------------------------------------------------*/
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#define GPIO_HAL_CONF_ARCH_HDR_PATH "dev/gpio-hal-arch.h"
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/*---------------------------------------------------------------------------*/
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#define GPIO_HAL_CONF_ARCH_SW_TOGGLE 0
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/*---------------------------------------------------------------------------*/
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#endif
/* NRF52840_DEF_H_ */
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/*---------------------------------------------------------------------------*/
cm4-def.h
Compiler and data type definitions for all CM4-based CPUs.
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