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| author | Keith Packard <keithp@keithp.com> | 2013-01-10 21:48:12 -0800 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2013-01-10 21:48:12 -0800 |
| commit | 1ed6b13e87c1cc2d6618b6ba3a293ea6e3b5752e (patch) | |
| tree | 10adf6f3c6b6c1ed2bf7540a9972fe72253cfa81 /src/micropeak/ao_micropeak.h | |
| parent | acff2f466031fd1a8533fc315411c3734a8bacc6 (diff) | |
| parent | d409417ff8e9ed9d406bf1c04542a4ecb574768b (diff) | |
Merge remote-tracking branch 'origin/micropeak-logging'
Diffstat (limited to 'src/micropeak/ao_micropeak.h')
| -rw-r--r-- | src/micropeak/ao_micropeak.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/micropeak/ao_micropeak.h b/src/micropeak/ao_micropeak.h new file mode 100644 index 00000000..e408d7c5 --- /dev/null +++ b/src/micropeak/ao_micropeak.h @@ -0,0 +1,56 @@ +/* + * Copyright © 2012 Keith Packard <keithp@keithp.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#ifndef _AO_MICROPEAK_H_ +#define _AO_MICROPEAK_H_ + +#define FILTER_SHIFT 3 +#define SAMPLE_SLEEP AO_MS_TO_TICKS(96) + +/* 16 sample, or about two seconds worth */ +#define GROUND_AVG_SHIFT 4 +#define GROUND_AVG (1 << GROUND_AVG_SHIFT) + +/* Pressure change (in Pa) to detect boost */ +#define BOOST_DETECT 120 /* 10m at sea level, 12m at 2000m */ + +/* Wait after power on before doing anything to give the user time to assemble the rocket */ +#define BOOST_DELAY AO_SEC_TO_TICKS(30) + +/* Pressure change (in Pa) to detect landing */ +#define LAND_DETECT 12 /* 1m at sea level, 1.2m at 2000m */ + +/* Current sensor pressure value */ +extern uint32_t pa; + +/* IIR filtered pressure value */ +extern uint32_t pa_avg; + +/* Average pressure value on ground */ +extern uint32_t pa_ground; + +/* Minimum recorded filtered pressure value */ +extern uint32_t pa_min; + +/* Pressure values converted to altitudes */ +extern alt_t ground_alt, max_alt; + +/* max_alt - ground_alt */ +extern alt_t ao_max_height; + +#endif + |