nrf52dk: cpu/nrf52832 support
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20 changed files with 1918 additions and 0 deletions
171
cpu/nrf52832/dev/clock.c
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171
cpu/nrf52832/dev/clock.c
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/*
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* Copyright (c) 2015 Nordic Semiconductor. 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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* 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
|
||||
* 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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* \addtogroup nrf52832
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* @{
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*
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* \addtogroup nrf52832-dev Device drivers
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* @{
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*
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* \addtogroup nrf52832-clock Clock driver
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* @{
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*
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* \file
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* Software clock implementation for the nRF52.
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* \author
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* Wojciech Bober <wojciech.bober@nordicsemi.no>
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*
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*/
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/*---------------------------------------------------------------------------*/
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#include <stdint.h>
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#include <stdbool.h>
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#include "nrf.h"
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#include "nrf_drv_config.h"
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#include "nrf_drv_rtc.h"
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#include "nrf_drv_clock.h"
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#include "nrf_delay.h"
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#include "app_error.h"
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#include "contiki.h"
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#include "platform-conf.h"
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/*---------------------------------------------------------------------------*/
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const nrf_drv_rtc_t rtc = NRF_DRV_RTC_INSTANCE(PLATFORM_RTC_INSTANCE_ID); /**< RTC instance used for platform clock */
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/*---------------------------------------------------------------------------*/
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static volatile uint32_t ticks;
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void clock_update(void);
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#define TICKS (RTC1_CONFIG_FREQUENCY/CLOCK_CONF_SECOND)
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/**
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* \brief Function for handling the RTC0 interrupts
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* \param int_type Type of interrupt to be handled
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*/
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static void
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rtc_handler(nrf_drv_rtc_int_type_t int_type)
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{
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if (int_type == NRF_DRV_RTC_INT_TICK) {
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clock_update();
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}
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}
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#ifndef SOFTDEVICE_PRESENT
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/** \brief Function starting the internal LFCLK XTAL oscillator.
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*/
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static void
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lfclk_config(void)
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{
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ret_code_t err_code = nrf_drv_clock_init(NULL);
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APP_ERROR_CHECK(err_code);
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nrf_drv_clock_lfclk_request();
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}
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#endif
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/**
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* \brief Function initialization and configuration of RTC driver instance.
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*/
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static void
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rtc_config(void)
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{
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uint32_t err_code;
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//Initialize RTC instance
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err_code = nrf_drv_rtc_init(&rtc, NULL, rtc_handler);
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APP_ERROR_CHECK(err_code);
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//Enable tick event & interrupt
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nrf_drv_rtc_tick_enable(&rtc, true);
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//Power on RTC instance
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nrf_drv_rtc_enable(&rtc);
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_init(void)
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{
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ticks = 0;
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#ifndef SOFTDEVICE_PRESENT
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lfclk_config();
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#endif
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rtc_config();
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}
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/*---------------------------------------------------------------------------*/
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CCIF clock_time_t
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clock_time(void)
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{
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return (clock_time_t)(ticks & 0xFFFFFFFF);
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_update(void)
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{
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ticks++;
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if (etimer_pending()) {
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etimer_request_poll();
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}
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}
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/*---------------------------------------------------------------------------*/
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CCIF unsigned long
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clock_seconds(void)
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{
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return (unsigned long)ticks/CLOCK_CONF_SECOND;
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_wait(clock_time_t i)
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{
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clock_time_t start;
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start = clock_time();
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while (clock_time() - start < (clock_time_t)i) {
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__WFE();
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_delay_usec(uint16_t dt)
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{
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nrf_delay_us(dt);
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}
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/*---------------------------------------------------------------------------*/
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/**
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* \brief Obsolete delay function but we implement it here since some code
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* still uses it
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*/
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void
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clock_delay(unsigned int i)
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{
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clock_delay_usec(i);
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}
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/*---------------------------------------------------------------------------*/
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/**
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* @}
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* @}
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* @}
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*/
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67
cpu/nrf52832/dev/lpm.h
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67
cpu/nrf52832/dev/lpm.h
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/*
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* Copyright (c) 2015, Nordic Semiconductor
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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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||||
* 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 Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/**
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* \addtogroup nrf52832-dev Device drivers
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* @{
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*
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* \addtogroup nrf52832-lpm Low power mode functions
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* @{
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*
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* \file
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* A header file for low power mode functions.
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* \author
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* Wojciech Bober <wojciech.bober@nordicsemi.no>
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*/
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#ifndef LPM_H
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#define LPM_H
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#ifdef SOFTDEVICE_PRESENT
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#include "nrf_soc.h"
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#endif
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/**
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* \brief Stop and wait for an event
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*
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*/
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static inline void
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lpm_drop(void)
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{
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#ifdef SOFTDEVICE_PRESENT
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sd_app_evt_wait();
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#else
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__WFI();
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#endif
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}
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#endif /* DEV_LPM_H_ */
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/**
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* @}
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* @}
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*/
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90
cpu/nrf52832/dev/random.c
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90
cpu/nrf52832/dev/random.c
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/*
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* Copyright (c) 2015, Nordic Semiconductor
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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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* 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
|
||||
* 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 Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/**
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* \addtogroup nrf52832
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* @{
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*
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* \addtogroup nrf52832-dev Device drivers
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* @{
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*
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* \addtogroup nrf52832-rng Hardware random number generator
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* @{
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*
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* \file
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* Random number generator routines exploiting the nRF52 hardware
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* capabilities.
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*
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* This file overrides core/lib/random.c.
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*
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* \author
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* Wojciech Bober <wojciech.bober@nordicsemi.no>
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*/
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#include <stddef.h>
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#include <nrf_drv_rng.h>
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#include "app_error.h"
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/*---------------------------------------------------------------------------*/
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/**
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* \brief Generates a new random number using the nRF52 RNG.
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* \return a random number.
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*/
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unsigned short
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random_rand(void)
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{
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unsigned short value = 42;
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uint8_t available;
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ret_code_t err_code;
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do {
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nrf_drv_rng_bytes_available(&available);
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} while (available < sizeof(value));
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err_code = nrf_drv_rng_rand((uint8_t *)&value, sizeof(value));
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APP_ERROR_CHECK(err_code);
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return value;
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}
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/*---------------------------------------------------------------------------*/
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/**
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* \brief Initialize the nRF52 random number generator.
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* \param seed Ignored. It's here because the function prototype is in core.
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*
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*/
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void
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random_init(unsigned short seed)
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{
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(void)seed;
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ret_code_t err_code = nrf_drv_rng_init(NULL);
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APP_ERROR_CHECK(err_code);
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}
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/**
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* @}
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* @}
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* @}
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*/
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118
cpu/nrf52832/dev/uart0.c
Normal file
118
cpu/nrf52832/dev/uart0.c
Normal file
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/*
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* Copyright (c) 2015, Nordic Semiconductor
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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
|
||||
* 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 Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
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||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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
|
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* SUCH DAMAGE.
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*
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*/
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/**
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* \addtogroup nrf52832-dev Device drivers
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* @{
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*
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* \addtogroup nrf52832-uart UART driver
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* @{
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*
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* \file
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* Contiki compatible UART driver.
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* \author
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* Wojciech Bober <wojciech.bober@nordicsemi.no>
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*/
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#include <stdlib.h>
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#include "nrf.h"
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#include "nrf_drv_config.h"
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#include "nrf_drv_uart.h"
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#include "app_util_platform.h"
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#include "app_error.h"
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#include "contiki.h"
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#include "dev/uart0.h"
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#include "dev/watchdog.h"
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#include "lib/ringbuf.h"
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#define TXBUFSIZE 128
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static uint8_t rx_buffer[1];
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static int (*uart0_input_handler)(unsigned char c);
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static struct ringbuf txbuf;
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static uint8_t txbuf_data[TXBUFSIZE];
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/*---------------------------------------------------------------------------*/
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static void
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uart_event_handler(nrf_drv_uart_event_t * p_event, void * p_context)
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{
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ENERGEST_ON(ENERGEST_TYPE_IRQ);
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if (p_event->type == NRF_DRV_UART_EVT_RX_DONE) {
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if (uart0_input_handler != NULL) {
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uart0_input_handler(p_event->data.rxtx.p_data[0]);
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}
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(void)nrf_drv_uart_rx(rx_buffer, 1);
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} else if (p_event->type == NRF_DRV_UART_EVT_TX_DONE) {
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if (ringbuf_elements(&txbuf) > 0) {
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uint8_t c = ringbuf_get(&txbuf);
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nrf_drv_uart_tx(&c, 1);
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}
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}
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ENERGEST_OFF(ENERGEST_TYPE_IRQ);
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}
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/*---------------------------------------------------------------------------*/
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void
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uart0_set_input(int (*input)(unsigned char c))
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{
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uart0_input_handler = input;
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}
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/*---------------------------------------------------------------------------*/
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void
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uart0_writeb(unsigned char c)
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{
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if (nrf_drv_uart_tx(&c, 1) == NRF_ERROR_BUSY) {
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while (ringbuf_put(&txbuf, c) == 0) {
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__WFE();
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||||
}
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||||
}
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}
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/*---------------------------------------------------------------------------*/
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/**
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* Initialize the RS232 port.
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*
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||||
*/
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void
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uart0_init(unsigned long ubr)
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{
|
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nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
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ret_code_t retcode = nrf_drv_uart_init(&config, uart_event_handler);
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APP_ERROR_CHECK(retcode);
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ringbuf_init(&txbuf, txbuf_data, sizeof(txbuf_data));
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nrf_drv_uart_rx_enable();
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nrf_drv_uart_rx(rx_buffer, 1);
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}
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/**
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* @}
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||||
* @}
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*/
|
57
cpu/nrf52832/dev/uart0.h
Normal file
57
cpu/nrf52832/dev/uart0.h
Normal file
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/*
|
||||
* Copyright (c) 2015, Nordic Semiconductor
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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 nrf52832-dev Device drivers
|
||||
* @{
|
||||
*
|
||||
* \addtogroup nrf52832-uart UART driver
|
||||
* @{
|
||||
*
|
||||
* \file
|
||||
* A header file for Contiki compatible UART driver.
|
||||
* \author
|
||||
* Wojciech Bober <wojciech.bober@nordicsemi.no>
|
||||
*/
|
||||
#ifndef UART_0_H
|
||||
#define UART_0_H
|
||||
|
||||
#include <stdint.h>
|
||||
#include "contiki-conf.h"
|
||||
|
||||
void uart0_init();
|
||||
void uart0_writeb(uint8_t byte);
|
||||
|
||||
void uart0_set_input(int (* input)(unsigned char c));
|
||||
|
||||
#endif /* UART_0_H */
|
||||
/**
|
||||
* @}
|
||||
* @}
|
||||
*/
|
93
cpu/nrf52832/dev/watchdog.c
Normal file
93
cpu/nrf52832/dev/watchdog.c
Normal file
|
@ -0,0 +1,93 @@
|
|||
/*
|
||||
* Copyright (c) 2015, Nordic Semiconductor
|
||||
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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 nrf52832-dev Device drivers
|
||||
* @{
|
||||
*
|
||||
* \addtogroup nrf52832-watchdog Watchdog driver
|
||||
* @{
|
||||
*
|
||||
* \file
|
||||
* Contiki compatible watchdog driver implementation.
|
||||
* \author
|
||||
* Wojciech Bober <wojciech.bober@nordicsemi.no>
|
||||
*/
|
||||
#include <nrf_drv_wdt.h>
|
||||
#include "app_error.h"
|
||||
#include "contiki-conf.h"
|
||||
|
||||
static nrf_drv_wdt_channel_id wdt_channel_id;
|
||||
static uint8_t wdt_initialized = 0;
|
||||
|
||||
/**
|
||||
* \brief WDT events handler.
|
||||
*/
|
||||
static void wdt_event_handler(void)
|
||||
{
|
||||
LEDS_OFF(LEDS_MASK);
|
||||
}
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
watchdog_init(void)
|
||||
{
|
||||
ret_code_t err_code;
|
||||
err_code = nrf_drv_wdt_init(NULL, &wdt_event_handler);
|
||||
APP_ERROR_CHECK(err_code);
|
||||
err_code = nrf_drv_wdt_channel_alloc(&wdt_channel_id);
|
||||
APP_ERROR_CHECK(err_code);
|
||||
wdt_initialized = 1;
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
watchdog_start(void)
|
||||
{
|
||||
if(wdt_initialized) {
|
||||
nrf_drv_wdt_enable();
|
||||
}
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
watchdog_periodic(void)
|
||||
{
|
||||
if(wdt_initialized) {
|
||||
nrf_drv_wdt_channel_feed(wdt_channel_id);
|
||||
}
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
void
|
||||
watchdog_reboot(void)
|
||||
{
|
||||
NVIC_SystemReset();
|
||||
}
|
||||
/**
|
||||
* @}
|
||||
* @}
|
||||
*/
|
Loading…
Add table
Add a link
Reference in a new issue