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|
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#!nsh |
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|
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echo "[init] PX4FMU v1, v2 with or without IO on FX-79 Buffalo" |
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|
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# |
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# Load default params for this platform |
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# |
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if param compare SYS_AUTOCONFIG 1 |
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then |
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# Set all params here, then disable autoconfig |
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param set FW_P_D 0 |
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param set FW_P_I 0 |
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param set FW_P_IMAX 15 |
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param set FW_P_LIM_MAX 50 |
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param set FW_P_LIM_MIN -50 |
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param set FW_P_P 60 |
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param set FW_P_RMAX_NEG 0 |
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param set FW_P_RMAX_POS 0 |
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param set FW_P_ROLLFF 1.1 |
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param set FW_R_D 0 |
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param set FW_R_I 5 |
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param set FW_R_IMAX 20 |
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param set FW_R_P 100 |
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param set FW_R_RMAX 100 |
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param set FW_THR_CRUISE 0.65 |
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param set FW_THR_MAX 1 |
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param set FW_THR_MIN 0 |
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param set FW_T_SINK_MAX 5.0 |
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param set FW_T_SINK_MIN 4.0 |
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param set FW_Y_ROLLFF 1.1 |
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param set FW_L1_PERIOD 17 |
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param set RC_SCALE_ROLL 1.0 |
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param set RC_SCALE_PITCH 1.0 |
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param set SYS_AUTOCONFIG 0 |
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param save |
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fi |
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# |
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# Force some key parameters to sane values |
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# MAV_TYPE 1 = fixed wing |
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# |
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param set MAV_TYPE 1 |
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set EXIT_ON_END no |
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# |
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# Start and configure PX4IO or FMU interface |
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# |
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if px4io detect |
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then |
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# Start MAVLink (depends on orb) |
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mavlink start |
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sh /etc/init.d/rc.io |
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# Limit to 100 Hz updates and (implicit) 50 Hz PWM |
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px4io limit 100 |
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else |
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# Start MAVLink (on UART1 / ttyS0) |
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mavlink start -d /dev/ttyS0 |
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fmu mode_pwm |
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param set BAT_V_SCALING 0.004593 |
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set EXIT_ON_END yes |
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fi |
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# |
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# Load mixer and start controllers (depends on px4io) |
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# |
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if [ -f /fs/microsd/etc/mixers/FMU_FX79.mix ] |
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then |
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echo "Using /fs/microsd/etc/mixers/FMU_FX79.mix" |
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mixer load /dev/pwm_output /fs/microsd/etc/mixers/FMU_FX79.mix |
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else |
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echo "Using /etc/mixers/FMU_FX79.mix" |
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mixer load /dev/pwm_output /etc/mixers/FMU_FX79.mix |
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fi |
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# |
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# Start common fixedwing apps |
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# |
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sh /etc/init.d/rc.fixedwing |
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if [ $EXIT_ON_END == yes ] |
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then |
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exit |
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fi |
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FX-79 Delta-wing mixer for PX4FMU |
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================================= |
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Designed for FX-79. |
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TODO (sjwilks): Add mixers for flaps. |
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This file defines mixers suitable for controlling a delta wing aircraft using |
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PX4FMU. The configuration assumes the elevon servos are connected to PX4FMU |
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servo outputs 0 and 1 and the motor speed control to output 3. Output 2 is |
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assumed to be unused. |
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Inputs to the mixer come from channel group 0 (vehicle attitude), channels 0 |
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(roll), 1 (pitch) and 3 (thrust). |
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See the README for more information on the scaler format. |
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Elevon mixers |
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------------- |
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Three scalers total (output, roll, pitch). |
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On the assumption that the two elevon servos are physically reversed, the pitch |
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input is inverted between the two servos. |
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The scaling factor for roll inputs is adjusted to implement differential travel |
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for the elevons. |
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M: 2 |
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O: 10000 10000 0 -10000 10000 |
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S: 0 0 5000 8000 0 -10000 10000 |
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S: 0 1 8000 8000 0 -10000 10000 |
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M: 2 |
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O: 10000 10000 0 -10000 10000 |
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S: 0 0 8000 5000 0 -10000 10000 |
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S: 0 1 -8000 -8000 0 -10000 10000 |
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Output 2 |
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-------- |
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This mixer is empty. |
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Z: |
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Motor speed mixer |
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----------------- |
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Two scalers total (output, thrust). |
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This mixer generates a full-range output (-1 to 1) from an input in the (0 - 1) |
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range. Inputs below zero are treated as zero. |
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M: 1 |
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O: 10000 10000 0 -10000 10000 |
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S: 0 3 0 20000 -10000 -10000 10000 |
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Gimbal / flaps / payload mixer for last four channels |
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----------------------------------------------------- |
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M: 1 |
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O: 10000 10000 0 -10000 10000 |
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S: 0 4 10000 10000 0 -10000 10000 |
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M: 1 |
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O: 10000 10000 0 -10000 10000 |
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S: 0 5 10000 10000 0 -10000 10000 |
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M: 1 |
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O: 10000 10000 0 -10000 10000 |
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S: 0 6 10000 10000 0 -10000 10000 |
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M: 1 |
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O: 10000 10000 0 -10000 10000 |
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S: 0 7 10000 10000 0 -10000 10000 |
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Reference in new issue