altos: Sanity check barometer before going to pad mode

[fw/altos] / src / core / ao_flight.c

diff --git a/src/core/ao_flight.c b/src/core/ao_flight.c
index 64c95063ae9f5ea1e59a12dd6a2317d3e0be328e..9d9d4c6e0b3ddea72a724b1b3eacee94dbb9f76c 100644 (file)
--- a/src/core/ao_flight.c
+++ b/src/core/ao_flight.c
@@ -94,7 +94,9 @@ ao_flight(void)
                        if (ao_config.accel_plus_g == 0 ||
                            ao_config.accel_minus_g == 0 ||
                            ao_ground_accel < ao_config.accel_plus_g - ACCEL_NOSE_UP ||
-                           ao_ground_accel > ao_config.accel_minus_g + ACCEL_NOSE_UP)
+                           ao_ground_accel > ao_config.accel_minus_g + ACCEL_NOSE_UP ||
+                           ao_ground_height < -1000 ||
+                           ao_ground_height > 7000)
                        {
                                /* Detected an accel value outside -1.5g to 1.5g
                                 * (or uncalibrated values), so we go into invalid mode