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authorLorenz Meier <lm@inf.ethz.ch>2014-05-01 19:16:05 +0200
committerLorenz Meier <lm@inf.ethz.ch>2014-05-01 19:16:05 +0200
commit2343aad455aedfb64c22f1ed99820df23c5ac32b (patch)
tree1552b2f0a2c434648d975c7d35b7c3ebb6c0982b /ROMFS/px4fmu_common
parent7bbaa95eef8dcc33ec5ed7005ca25fb5cfbd1392 (diff)
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Easystar mixer fix
Diffstat (limited to 'ROMFS/px4fmu_common')
-rw-r--r--ROMFS/px4fmu_common/init.d/2100_mpx_easystar2
-rw-r--r--ROMFS/px4fmu_common/mixers/easystar.mix84
2 files changed, 85 insertions, 1 deletions
diff --git a/ROMFS/px4fmu_common/init.d/2100_mpx_easystar b/ROMFS/px4fmu_common/init.d/2100_mpx_easystar
index 465a22c53..db0e40fc2 100644
--- a/ROMFS/px4fmu_common/init.d/2100_mpx_easystar
+++ b/ROMFS/px4fmu_common/init.d/2100_mpx_easystar
@@ -5,4 +5,4 @@
sh /etc/init.d/rc.fw_defaults
-set MIXER FMU_RET
+set MIXER easystar.mix
diff --git a/ROMFS/px4fmu_common/mixers/easystar.mix b/ROMFS/px4fmu_common/mixers/easystar.mix
new file mode 100644
index 000000000..610da567f
--- /dev/null
+++ b/ROMFS/px4fmu_common/mixers/easystar.mix
@@ -0,0 +1,84 @@
+Aileron/rudder/elevator/throttle mixer for PX4FMU
+==================================================
+
+This file defines mixers suitable for controlling a fixed wing aircraft with
+aileron, rudder, elevator and throttle controls using PX4FMU. The configuration
+assumes the aileron servo(s) are connected to PX4FMU servo output 0, the
+elevator to output 1, the rudder to output 2 and the throttle to output 3.
+
+Inputs to the mixer come from channel group 0 (vehicle attitude), channels 0
+(roll), 1 (pitch) and 3 (thrust).
+
+Aileron mixer
+-------------
+Two scalers total (output, roll).
+
+This mixer assumes that the aileron servos are set up correctly mechanically;
+depending on the actual configuration it may be necessary to reverse the scaling
+factors (to reverse the servo movement) and adjust the offset, scaling and
+endpoints to suit.
+
+As there is only one output, if using two servos adjustments to compensate for
+differences between the servos must be made mechanically. To obtain the correct
+motion using a Y cable, the servos can be positioned reversed from one another.
+
+M: 1
+O: 10000 10000 0 -10000 10000
+S: 0 0 10000 10000 0 -10000 10000
+
+Elevator mixer
+------------
+Two scalers total (output, roll).
+
+This mixer assumes that the elevator servo is set up correctly mechanically;
+depending on the actual configuration it may be necessary to reverse the scaling
+factors (to reverse the servo movement) and adjust the offset, scaling and
+endpoints to suit.
+
+M: 1
+O: 10000 10000 0 -10000 10000
+S: 0 1 -10000 -10000 0 -10000 10000
+
+Rudder mixer
+------------
+Two scalers total (output, yaw).
+
+This mixer assumes that the rudder servo is set up correctly mechanically;
+depending on the actual configuration it may be necessary to reverse the scaling
+factors (to reverse the servo movement) and adjust the offset, scaling and
+endpoints to suit.
+
+M: 1
+O: 10000 10000 0 -10000 10000
+S: 0 2 -10000 -10000 0 -10000 10000
+
+Motor speed mixer
+-----------------
+Two scalers total (output, thrust).
+
+This mixer generates a full-range output (-1 to 1) from an input in the (0 - 1)
+range. Inputs below zero are treated as zero.
+
+M: 1
+O: 10000 10000 0 -10000 10000
+S: 0 3 0 20000 -10000 -10000 10000
+
+
+Gimbal / flaps / payload mixer for last four channels
+-----------------------------------------------------
+
+M: 1
+O: 10000 10000 0 -10000 10000
+S: 0 4 10000 10000 0 -10000 10000
+
+M: 1
+O: 10000 10000 0 -10000 10000
+S: 0 5 10000 10000 0 -10000 10000
+
+M: 1
+O: 10000 10000 0 -10000 10000
+S: 0 6 10000 10000 0 -10000 10000
+
+M: 1
+O: 10000 10000 0 -10000 10000
+S: 0 7 10000 10000 0 -10000 10000