-__pdata uint16_t ao_interval_end;
-__pdata int16_t ao_interval_min_height;
-__pdata int16_t ao_interval_max_height;
+static __data uint16_t ao_interval_end;
+static __data int16_t ao_interval_min_height;
+static __data int16_t ao_interval_max_height;
+static __data int16_t ao_coast_avg_accel;
+