From: Keith Packard <keithp@keithp.com>
Date: Sun, 9 Dec 2012 22:32:35 +0000 (-0800)
Subject: altos: Store altitude in 32-bits for MicroPeak
X-Git-Tag: micropeak-build-2012-12-09~2
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=24948ea1d41f2a7c96ac09e35d1250909e5726ae

altos: Store altitude in 32-bits for MicroPeak

Needs all 32 bits to store .1 meter resolution

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/src/micropeak/ao_pins.h b/src/micropeak/ao_pins.h
index 257b8694..187b2544 100644
--- a/src/micropeak/ao_pins.h
+++ b/src/micropeak/ao_pins.h
@@ -57,6 +57,7 @@
 #define I2C_PIN_SDA		PINB0
 
 #define AO_CONST_ATTRIB		PROGMEM
+typedef int32_t alt_t;
 #define FETCH_ALT(o)		((alt_t) pgm_read_dword(&altitude_table[o]))
 
 #define AO_ALT_VALUE(x)		((x) * 10)