Adding the avr-rss2 platform based on AtMega256RFR2
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Robert Olsson
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# Atmega256RFR2 @ 20C, UNT-61E, RSS2 Mote 2015-12-30
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# TX-PWR RPC=0x0 vs RPC=0xFF. Current mA
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#
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15 14.6 11.8
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14 15.0 12.1
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13 15.3 12.5
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12 15.6 12.8
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11 15.9 13.1
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10 16.1 13.4
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9 16.3 13.7
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8 16.5 13.8
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7 16.7 13.9
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6 16.9 14.0
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5 17.0 14.2
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4 17.2 14.3
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3 17.2 14.5
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2 17.2 14.6
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1 17.3 14.6
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0 17.4 14.5
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RX 13.7 7.3
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IDLE 0 0
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9
platform/avr-rss2/examples/avr_radio_power/Makefile
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9
platform/avr-rss2/examples/avr_radio_power/Makefile
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CFLAGS += -DPROJECT_CONF_H=\"project-conf.h\"
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CONTIKI_PROJECT = avr_radio_power
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APPS+=powertrace
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all: $(CONTIKI_PROJECT)
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CONTIKI = ../../../..
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CONTIKI_WITH_RIME = 1
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include $(CONTIKI)/Makefile.include
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79
platform/avr-rss2/examples/avr_radio_power/README.md
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79
platform/avr-rss2/examples/avr_radio_power/README.md
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avr_radio_power
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===============
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Motivation
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-----------
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Spins over different radio seting for the Atmel radio. The motivation is to
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get understanding and also to get correct data for avrora and Contiki
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simulations. Program loops over different TX-power setting and measures
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RX consumption also radio off and idle power use in SLEEP_MODE_PWR_SAVE is
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measured. Program disables radio duty cycling (RDC) and sets MCU in deep
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sleep mode to only get radio consumption.
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Usage
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-----
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The different setting is printed on the terminal. You need a way to measure
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the current consumption and relate to the tests.
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Example
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-------
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Program printout with added measurements. The used board was RSS2 mote
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with a AtMega256RFR2 CPU. Max is when 0xFF is written to the RPC register.
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Run/setup Current use
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------------------------------------------------
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TX with PWR=0 RPC=0x00 17.80 mA (MAX TX-pwr)
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TX with PWR=1 RPC=0x00 17.74
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TX with PWR=2 RPC=0x00
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TX with PWR=3 RPC=0x00
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TX with PWR=4 RPC=0x00
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TX with PWR=5 RPC=0x00 17.43
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TX with PWR=6 RPC=0x00
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TX with PWR=7 RPC=0x00
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TX with PWR=8 RPC=0x00
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TX with PWR=9 RPC=0x00 17.68
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TX with PWR=10 RPC=0x00
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TX with PWR=11 RPC=0x00
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TX with PWR=12 RPC=0x00
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TX with PWR=13 RPC=0x00
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TX with PWR=14 RPC=0x00
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TX with PWR=15 RPC=0x00
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RX with RPC=0x00 -------------------- 13.43 (RX)
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-------------------------------------------------
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TX with PWR=0 RPC=0xff 14.63 mA (MAX TX-pwr)
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TX with PWR=1 RPC=0xff
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TX with PWR=2 RPC=0xff
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TX with PWR=3 RPC=0xff
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TX with PWR=4 RPC=0xff
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TX with PWR=5 RPC=0xff
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TX with PWR=6 RPC=0xff 14.45
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TX with PWR=7 RPC=0xff
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TX with PWR=8 RPC=0xff
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TX with PWR=9 RPC=0xff
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TX with PWR=10 RPC=0xff
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TX with PWR=11 RPC=0xff
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TX with PWR=12 RPC=0xff
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TX with PWR=13 RPC=0xff
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TX with PWR=14 RPC=0xff
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TX with PWR=15 RPC=0xff
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RX with RPC=0xFF -------------------- 7.11 (RX)
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RX radio off 0.001 mA
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Comments
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--------
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We see TX consumption decreases from 17.80 to 14.63 mA using Max RPC (0xFF).
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NOTE! For RX 13.43 to 7.11 mA. Nice. This actual measurements.
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The avr-rss2 port adds support for the AtMegaXXXRFR2 including the new RPC
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function.
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References
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----------
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Atmel application note. AT02594: Smart Reduced Power Consumption Techniques
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[Here] (http://www.atmel.com/images/atmel-42356-smart-reduced-power-consumption-techniques_applicationnote_at02594.pdf)
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Multimeter UNI-T UT61E with USB-logging.
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164
platform/avr-rss2/examples/avr_radio_power/avr_radio_power.c
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164
platform/avr-rss2/examples/avr_radio_power/avr_radio_power.c
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/*
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* Copyright (c) 2015, Copyright Robert Olsson / Radio Sensors AB
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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
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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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* This file is part of the Contiki operating system.
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*
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*
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* Author : Robert Olsson robert@radio-sensors.com
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* Created : 2015-12-30
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*/
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/**
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* \file
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* An application for monitoring current use on Atmel
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* radios also supporting the RPC function on RFR2 chips.
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* Current needs to be measured with amp-meter.
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*/
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#include "contiki.h"
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#include "net/rime/rime.h"
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#include "powertrace.h"
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#include <stdio.h>
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#include "dev/leds.h"
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#include "rf230bb.h"
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#include "net/packetbuf.h"
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#include "net/rime/rimestats.h"
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#include "net/netstack.h"
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#include <avr/sleep.h>
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#include <dev/watchdog.h>
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#define TEST_PERIOD 6
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static int ps = 0; /* Power-save false */
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static char buf[110];
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static struct etimer et;
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PROCESS(power_use_process, "Power use test");
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PROCESS(sleep_process, "Sleep process");
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AUTOSTART_PROCESSES(&power_use_process, &sleep_process);
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static void
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broadcast_recv(struct broadcast_conn *c, const linkaddr_t *from)
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{
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printf("broadcast message received from %d.%d: '%s'\n",
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from->u8[0], from->u8[1], (char *)packetbuf_dataptr());
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}
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static const struct broadcast_callbacks broadcast_call = {broadcast_recv};
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static struct broadcast_conn broadcast;
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PROCESS_THREAD(power_use_process, ev, data)
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{
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static int i, j;
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PROCESS_EXITHANDLER(broadcast_close(&broadcast);)
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PROCESS_BEGIN();
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/* powertrace_start(CLOCK_SECOND * 2); */
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broadcast_open(&broadcast, 129, &broadcast_call);
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leds_init();
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rf230_set_channel(25);
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for(i=0; i < 2; i++) { /* Loop over min and max rpc settings */
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NETSTACK_RADIO.off(); /* Radio off for rpc change */
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NETSTACK_RADIO.off();
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etimer_set(&et, CLOCK_SECOND * 8);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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if(i == 0)
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rf230_set_rpc(0x0); /* Disbable all RPC features */
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else
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rf230_set_rpc(0xFF); /* Enable all RPC features. Only XRFR2 radios */
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NETSTACK_RADIO.on();
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/* Loop over the different TX power settings 0-15 */
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for(j=15; j >= 0; j--) {
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NETSTACK_RADIO.on();
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rf230_set_txpower(j);
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ps = 0;
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printf("TX with PWR=%d RPC=0x%02x\n", rf230_get_txpower(), rf230_get_rpc());
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ps = 1;
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etimer_set(&et, CLOCK_SECOND * TEST_PERIOD);
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while(1) {
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if(etimer_expired(&et))
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break;
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packetbuf_copyfrom(buf, sizeof(buf)); /* Dummy data */
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broadcast_send(&broadcast);
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PROCESS_PAUSE();
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//leds_on(LEDS_RED);
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}
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/* Barrier so we can see next run */
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NETSTACK_RADIO.off();
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etimer_set(&et, CLOCK_SECOND * TEST_PERIOD);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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}
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/* RX */
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NETSTACK_RADIO.on();
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ps = 0;
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printf("RX radio on RPC=0x%02x\n", rf230_get_rpc());
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ps = 1;
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etimer_set(&et, CLOCK_SECOND * TEST_PERIOD);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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NETSTACK_RADIO.off();
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}
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/* Last just RX OFF*/
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ps = 0;
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printf("RX radio off\n");
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ps = 1;
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etimer_set(&et, CLOCK_SECOND * TEST_PERIOD);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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PROCESS_END();
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}
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/* Sleep process is just put MCU in sleep so we minimiza MCU impact */
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PROCESS_THREAD(sleep_process, ev, data)
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{
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PROCESS_BEGIN();
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while(1) {
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watchdog_periodic();
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if(ps)
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set_sleep_mode(SLEEP_MODE_PWR_SAVE);
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else
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set_sleep_mode(SLEEP_MODE_IDLE);
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cli();
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sleep_enable();
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sei();
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sleep_cpu();
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sleep_disable();
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sei();
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PROCESS_PAUSE();
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}
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PROCESS_END();
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}
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51
platform/avr-rss2/examples/avr_radio_power/project-conf.h
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51
platform/avr-rss2/examples/avr_radio_power/project-conf.h
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/*
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* Copyright (c) 2015, Copyright Robert Olsson / Radio Sensors AB
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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
|
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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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* This file is part of the Contiki operating system.
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*
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*
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* Author : Robert Olsson robert@radio-sensors.com
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* Created : 2015-11-22
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*/
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/**
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* \file
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* Project specific configuration defines for example
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*
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*/
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#ifndef PROJECT_CONF_H_
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#define PROJECT_CONF_H_
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#define NETSTACK_CONF_RDC nullrdc_driver
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#define NETSTACK_CONF_MAC nullmac_driver
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//#define NETSTACK_CONF_MAC csma_driver
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//#define NETSTACK_CONF_RDC contikimac_driver
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#endif /* PROJECT_CONF_H_ */
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