From dc0b49dcbaa2d0a69e002c151337b6e9fd3060d9 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Thu, 2 Jun 2011 23:16:30 -0700 Subject: [PATCH] altosui: Handle old TeleDongle receiving kalman telemetry packets The telemetry packets now send the kalman height/speed/accel values instead of the ad-hoc values. If received by an old TeleDongle box, the speed value will be of the form 0x8000abcd, which will be printed as a 32-bit value by TeleDongle. We only want the abcd part, which is the speed * 16. Detect this automatically and compute the correct values for all three. Signed-off-by: Keith Packard --- altosui/AltosTelemetry.java | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/altosui/AltosTelemetry.java b/altosui/AltosTelemetry.java index 91b6d048..7d68b5b5 100644 --- a/altosui/AltosTelemetry.java +++ b/altosui/AltosTelemetry.java @@ -326,6 +326,16 @@ public class AltosTelemetry extends AltosRecord { AltosParse.word(words[i++], "fp:"); flight_pres = AltosParse.parse_int(words[i++]); + /* Old TeleDongle code with kalman-reporting TeleMetrum code */ + if ((flight_vel & 0xffff0000) == 0x80000000) { + speed = ((short) flight_vel) / 16.0; + acceleration = flight_accel / 16.0; + height = flight_pres; + flight_vel = MISSING; + flight_pres = MISSING; + flight_accel = MISSING; + } + AltosParse.word(words[i++], "gp:"); ground_pres = AltosParse.parse_int(words[i++]); -- 2.30.2