diff options
| author | Bdale Garbee <bdale@gag.com> | 2013-01-12 10:57:22 -0700 |
|---|---|---|
| committer | Bdale Garbee <bdale@gag.com> | 2013-01-12 10:57:22 -0700 |
| commit | 670034eef48d63cdaec8d271fa93da984ffe2ea9 (patch) | |
| tree | 422713fba95404876049f785255942ce6d9c4afd /src/micropeak/ao_micropeak.h | |
| parent | 8c5ebaf88b459b09924753a8077393a7b0639133 (diff) | |
| parent | d374d6be7eb040457f4df6c38b5d057f26ee741c (diff) | |
Merge branch 'master' of ssh://git.gag.com/scm/git/fw/altos
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 + |