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-rw-r--r--altosui/AltosTelemetryIterable.java9
1 files changed, 9 insertions, 0 deletions
diff --git a/altosui/AltosTelemetryIterable.java b/altosui/AltosTelemetryIterable.java
index 278cbfb7..a1b25332 100644
--- a/altosui/AltosTelemetryIterable.java
+++ b/altosui/AltosTelemetryIterable.java
@@ -88,6 +88,15 @@ public class AltosTelemetryIterable extends AltosRecordIterable {
if (previous != null)
records.add(previous);
+ /* Adjust all tick counts to match expected eeprom values,
+ * which starts with a 16-bit tick count 16 samples before boost
+ */
+
+ int tick_adjust = (boost_tick - 16) & 0xffff0000;
+ for (AltosRecord r : this)
+ r.tick -= tick_adjust;
+ boost_tick -= tick_adjust;
+
/* adjust all tick counts to be relative to boost time */
for (AltosRecord r : this)
r.time = (r.tick - boost_tick) / 100.0;