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_14;
25 public class AltosEepromRecordFireTwo extends AltosEepromRecord {
26 public static final int record_length = 32;
28 /* AO_LOG_FLIGHT elements */
29 public int flight() { return data16(0); }
31 /* AO_LOG_STATE elements */
32 public int state() { return data16(0); }
33 public int reason() { return data16(2); }
35 /* AO_LOG_SENSOR elements */
36 public int pres() { return data16(0); }
37 public int thrust() { return data16(2); }
38 public int temp(int i) { return data16(4+i*2); }
40 private static final double r_above = 5600.0;
41 private static final double r_below = 10000.0;
42 private static final double v_adc = 3.3;
44 private static double firetwo_adc(int raw) {
48 public static double adc_to_pa(int adc) {
50 /* 1600psi sensor measured 2019.07.10, these values based on that */
52 double ADC_SLOPE = 2.020; /* adc counts per psi */
53 double ADC_OFFSET = 14.79; /* psi at ADC_MIN */
55 // /* 2500psi sensor measured 2019.04.30, these values based on that */
56 // double ADC_MIN = 392;
57 // double ADC_SLOPE = 0.46; /* adc counts per psi */
59 /* sensor is asserted to be linear 0 - max psi over ADC_MIN to ADC_MAX */
61 double psi = ((raw - ADC_MIN) / ADC_SLOPE) + ADC_OFFSET;
63 return AltosConvert.psi_to_pa(psi);
67 public static double adc_to_n(int adc) {
69 /* load cell sensor looks linear once it "gets going" */
71 /* cal values using 1 metric ton "S" load cell 2020.03.05 */
72 /* lowest useful cal data point in linear region */
73 double ADC_MIN_LBS = 71.4;
74 double ADC_MIN_COUNTS = 153;
76 /* highest useful cal data point in linear region */
77 double ADC_MAX_LBS = 211.4;
78 double ADC_MAX_COUNTS = 313;
80 /* slope of sensor response in ADC counts per lb */
81 double ADC_SLOPE = (ADC_MAX_COUNTS - ADC_MIN_COUNTS) / (ADC_MAX_LBS - ADC_MIN_LBS);
84 double lb = ((raw - ADC_MIN_COUNTS) / ADC_SLOPE) + ADC_MIN_LBS;
85 return AltosConvert.lb_to_n(lb);
88 public void provide_data(AltosDataListener listener, AltosCalData cal_data) {
89 super.provide_data(listener, cal_data);
92 case AltosLib.AO_LOG_FLIGHT:
93 cal_data.set_flight(flight());
95 case AltosLib.AO_LOG_STATE:
96 listener.set_state(state());
98 case AltosLib.AO_LOG_SENSOR:
99 listener.set_pressure(adc_to_pa(pres()));
100 listener.set_thrust(adc_to_n(thrust()));
105 public AltosEepromRecord next() {
106 int s = next_start();
109 return new AltosEepromRecordFireTwo(eeprom, s);
112 public AltosEepromRecordFireTwo(AltosEeprom eeprom, int start) {
113 super(eeprom, start, record_length);
116 public AltosEepromRecordFireTwo(AltosEeprom eeprom) {