X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fkernel%2Fao_kalman.c;h=e4cc6d4b9f73676fbc93b750ececfad91b2ed332;hb=a3b4f0d33e9d13fb5294397304ec0eb44ecaf1fc;hp=82315c485de086b7f3b0cb64a462a878ac620119;hpb=ea6fe21d78744d7e6225a56c369d54f7cd956767;p=fw%2Faltos

diff --git a/src/kernel/ao_kalman.c b/src/kernel/ao_kalman.c
index 82315c48..e4cc6d4b 100644
--- a/src/kernel/ao_kalman.c
+++ b/src/kernel/ao_kalman.c
@@ -45,7 +45,13 @@ static __pdata ao_k_t		ao_avg_height_scaled;
 __xdata ao_v_t			ao_avg_height;
 
 __pdata ao_v_t			ao_error_h;
+#if !HAS_ACCEL || AO_FLIGHT_TEST
+#define AO_ERROR_H_SQ_AVG	1
+#endif
+
+#if AO_ERROR_H_SQ_AVG
 __pdata ao_v_t			ao_error_h_sq_avg;
+#endif
 
 #if HAS_ACCEL
 __pdata ao_v_t			ao_error_a;
@@ -83,7 +89,9 @@ ao_kalman_predict(void)
 static void
 ao_kalman_err_height(void)
 {
+#if AO_ERROR_H_SQ_AVG
 	ao_v_t	e;
+#endif
 	ao_v_t height_distrust;
 #if HAS_ACCEL
 	ao_v_t	speed_distrust;
@@ -91,6 +99,7 @@ ao_kalman_err_height(void)
 
 	ao_error_h = ao_sample_height - (ao_v_t) (ao_k_height >> 16);
 
+#if AO_ERROR_H_SQ_AVG
 	e = ao_error_h;
 	if (e < 0)
 		e = -e;
@@ -98,6 +107,7 @@ ao_kalman_err_height(void)
 		e = 127;
 	ao_error_h_sq_avg -= ao_error_h_sq_avg >> 4;
 	ao_error_h_sq_avg += (e * e) >> 4;
+#endif
 
 	if (ao_flight_state >= ao_flight_drogue)
 		return;