altos: Make sure pa to altitude conversion is done with 32 bits

[fw/altos] / src / micropeak / ao_pins.h

diff --git a/src/micropeak/ao_pins.h b/src/micropeak/ao_pins.h
index 187b25442163a47fe0d63631ba3ed226bee125ca..63e9cb1b26663ce0259d2134003d8fa334b54ae0 100644 (file)
--- a/src/micropeak/ao_pins.h
+++ b/src/micropeak/ao_pins.h
@@ -60,6 +60,6 @@
 typedef int32_t alt_t;
 #define FETCH_ALT(o)           ((alt_t) pgm_read_dword(&altitude_table[o]))
 
 typedef int32_t alt_t;
 #define FETCH_ALT(o)           ((alt_t) pgm_read_dword(&altitude_table[o]))
 

-#define AO_ALT_VALUE(x)                ((x) * 10)
+#define AO_ALT_VALUE(x)                ((x) * (alt_t) 10)

 
 #endif /* _AO_PINS_H_ */
 
 #endif /* _AO_PINS_H_ */