2 * Copyright © 2017 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
19 package org.altusmetrum.altoslib_11;
25 public class AltosEepromFireTwo extends AltosEeprom {
26 public static final int record_length = 32;
28 public int record_length() { return record_length; }
30 /* AO_LOG_FLIGHT elements */
31 public int flight() { return data16(0); }
32 public int idle_pres() { return data16(2); }
33 public int idle_thrust() { return data16(4); }
35 /* AO_LOG_STATE elements */
36 public int state() { return data16(0); }
37 public int reason() { return data16(2); }
39 /* AO_LOG_SENSOR elements */
40 public int pres() { return data16(0); }
41 public int thrust() { return data16(2); }
42 public int temp(int i) { return data16(4+i*2); }
44 public AltosEepromFireTwo (AltosEepromChunk chunk, int start) throws ParseException {
45 parse_chunk(chunk, start);
48 private static final double r_above = 5600.0;
49 private static final double r_below = 10000.0;
50 private static final double v_adc = 3.3;
53 firetwo_adc(int raw) {
60 /* raw adc to processor voltage, then back through the
61 * voltage divider to the sensor voltage
64 double v = firetwo_adc(adc) * v_adc * (r_above + r_below) / r_below;
66 /* Bound to ranges provided in sensor */
70 double psi = (v - 0.5) / 4.0 * 1600.0;
71 return AltosConvert.psi_to_pa(psi);
74 public void update_state(AltosState state) {
75 super.update_state(state);
78 case AltosLib.AO_LOG_FLIGHT:
79 state.set_flight(flight());
80 state.set_ground_pressure(adc_to_pa(idle_pres()));
81 state.set_accel_g(0, -1);
83 case AltosLib.AO_LOG_STATE:
84 state.set_state(state());
86 case AltosLib.AO_LOG_SENSOR:
87 state.set_pressure(adc_to_pa(pres()));
88 state.set_accel(firetwo_adc(thrust()) * 100);
93 public AltosEepromFireTwo (String line) {
97 static public LinkedList<AltosEeprom> read(FileInputStream input) {
98 LinkedList<AltosEeprom> firetwos = new LinkedList<AltosEeprom>();
102 String line = AltosLib.gets(input);
106 AltosEepromFireTwo firetwo = new AltosEepromFireTwo(line);
108 if (firetwo.cmd != AltosLib.AO_LOG_INVALID)
109 firetwos.add(firetwo);
110 } catch (Exception e) {
111 System.out.printf ("exception\n");
113 } catch (IOException ie) {