added a hi-res RSSI scanner and viewer for sky/jcreate
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joxe
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3 changed files with 185 additions and 0 deletions
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@ -11,4 +11,10 @@ all: blink sky-collect #rt-leds test-button test-cfs tcprudolph0
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echo $(basename $<)/$(basename $<).ihex 600 > $(basename $<)/runfile ; \
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echo $(basename $<)/$(basename $<).ihex 600 > $(basename $<)/runfile ; \
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tar czf $@ $(basename $<)
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tar czf $@ $(basename $<)
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%.class: %.java
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javac $(basename $<).java
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viewrssi: ViewRSSI.class
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make login | java ViewRSSI
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include $(CONTIKI)/Makefile.include
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include $(CONTIKI)/Makefile.include
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86
examples/sky/ViewRSSI.java
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86
examples/sky/ViewRSSI.java
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/**
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* RSSI Viewer - view RSSI values of 802.15.4 channels
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* ---------------------------------------------------
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* Note: run the rssi-scanner on a Sky or sentilla node connected to USB
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* then start with
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* make login | java ViewRSSI
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*
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* Created: Fri Apr 24 00:40:01 2009, Joakim Eriksson
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*
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* @author Joakim Eriksson, SICS
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* @version 1.0
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*/
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import javax.swing.*;
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import java.awt.*;
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import java.io.*;
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public class ViewRSSI extends JPanel {
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private int[] rssi = new int[80];
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private int[] rssiMax = new int[80];
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/* this is the max value of the RSSI from the cc2420 */
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private static final int RSSI_MAX_VALUE = 200;
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public ViewRSSI() {
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}
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public void paint(Graphics g) {
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int h = getHeight();
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int w = getWidth();
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g.clearRect(0, 0, 300, h);
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double factor = (h - 20.0) / RSSI_MAX_VALUE;
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double sSpacing = (w - 15 ) / 80.0;
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int sWidth = (int) (sSpacing - 1);
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if (sWidth == 0) sWidth = 1;
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g.setColor(Color.gray);
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double xpos = 10;
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for (int i = 0, n = rssi.length; i < n; i++) {
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int rssi = (int) (rssiMax[i] * factor);
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g.fillRect((int) xpos, h - 20 - rssi,
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sWidth, rssi + 1);
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xpos += sSpacing;
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}
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g.setColor(Color.black);
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xpos = 10;
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for (int i = 0, n = rssi.length; i < n; i++) {
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int rssiVal = (int) (rssi[i] * factor);
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g.fillRect((int) xpos, h - 20 - rssiVal,
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sWidth, rssiVal + 1);
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xpos += sSpacing;
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}
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}
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private void handleInput() throws IOException {
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BufferedReader reader =
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new BufferedReader(new InputStreamReader(System.in));
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while(true) {
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String line = reader.readLine();
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if (line.startsWith("RSSI:")) {
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try {
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String[] parts = line.split(" ");
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for (int i = 1, n = parts.length; i < n; i++) {
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rssi[i] = 3 * Integer.parseInt(parts[i]);
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if (rssi[i] > rssiMax[i]) rssiMax[i] = rssi[i];
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else if (rssiMax[i] > 0) rssiMax[i]--;
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}
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} catch (Exception e) {
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/* report but do not fail... */
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e.printStackTrace();
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}
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repaint();
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}
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}
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}
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public static void main(String[] args) throws IOException {
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JFrame win = new JFrame("RSSI Viewer");
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ViewRSSI panel;
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win.setBounds(10, 10, 300, 300);
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win.getContentPane().add(panel = new ViewRSSI());
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win.setVisible(true);
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panel.handleInput();
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}
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}
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93
examples/sky/rssi-scanner.c
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93
examples/sky/rssi-scanner.c
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/*
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* Copyright (c) 2007, Swedish Institute of Computer Science.
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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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* $Id: rssi-scanner.c,v 1.1 2009/04/25 09:41:37 joxe Exp $
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*/
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/**
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* \file
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* Scanning 2.4 GHz radio frequencies using CC2420 and prints
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* the values
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* \author
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* Joakim Eriksson, joakime@sics.se
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*/
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#include "contiki.h"
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#include "net/rime.h"
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#include "dev/leds.h"
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#include "dev/cc2420.h"
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#include "dev/cc2420_const.h"
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#include "dev/spi.h"
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#include <stdio.h>
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/*---------------------------------------------------------------------------*/
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/* This assumes that the CC2420 is always on and "stable" */
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static void
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set_frq(int c)
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{
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int f;
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/* fine graied channel - can we even read other channels with CC2420 ? */
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f = c + 302 + 0x4000;
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FASTSPI_SETREG(CC2420_FSCTRL, f);
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FASTSPI_STROBE(CC2420_SRXON);
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}
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static void
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do_rssi(void)
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{
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int channel;
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printf("RSSI:");
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for(channel = 0; channel <= 79; ++channel) {
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set_frq(channel + 55);
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printf("%d ", cc2420_rssi() + 53);
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}
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printf("\n");
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}
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/*---------------------------------------------------------------------------*/
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PROCESS(scanner_process, "RSSI Scanner");
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AUTOSTART_PROCESSES(&scanner_process);
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(scanner_process, ev, data)
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{
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PROCESS_BEGIN();
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/* switch mac layer off, and turn radio on */
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rime_mac->off(0);
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cc2420_on();
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while(1) {
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do_rssi();
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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