PR: request param: PX4 +MAVROS

[Ahrovan]

Issue details

I can't read mavros/global_position/global and other values in real time request, some time's with 1Hz or unavailable.
always say

[ WARN] [1519815287.690905946]: PR: request param #136 timeout, retries left 2, and 475 params still missing
[ WARN] [1519815288.325534112]: TM: Clock skew detected (-0.050610138 s). Hard syncing clocks.

MAVROS version and platform

Mavros: 0.18.4
ROS: Kinetic
Ubuntu: 16.04
[X] PX4 (last)

Node logs

roslaunch mavros px4.launch fcu_url:="serial:///dev/ttyUSB0:57600"
... logging to /home/cv/.ros/log/6a2de8ae-1c75-11e8-860a-ede8e7dd15d9/roslaunch-ubuntu-17733.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://ubuntu:44739/

SUMMARY
========

CLEAR PARAMETERS
 * /mavros/

PARAMETERS
 * /mavros/cmd/use_comp_id_system_control: False
 * /mavros/conn/heartbeat_rate: 1.0
 * /mavros/conn/system_time_rate: 1.0
 * /mavros/conn/timeout: 10.0
 * /mavros/conn/timesync_rate: 10.0
 * /mavros/distance_sensor/hrlv_ez4_pub/field_of_view: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/frame_id: hrlv_ez4_sonar
 * /mavros/distance_sensor/hrlv_ez4_pub/id: 0
 * /mavros/distance_sensor/hrlv_ez4_pub/orientation: PITCH_270
 * /mavros/distance_sensor/hrlv_ez4_pub/send_tf: True
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/x: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/y: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/z: -0.1
 * /mavros/distance_sensor/laser_1_sub/id: 3
 * /mavros/distance_sensor/laser_1_sub/orientation: PITCH_270
 * /mavros/distance_sensor/laser_1_sub/subscriber: True
 * /mavros/distance_sensor/lidarlite_pub/field_of_view: 0.0
 * /mavros/distance_sensor/lidarlite_pub/frame_id: lidarlite_laser
 * /mavros/distance_sensor/lidarlite_pub/id: 1
 * /mavros/distance_sensor/lidarlite_pub/orientation: PITCH_270
 * /mavros/distance_sensor/lidarlite_pub/send_tf: True
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/x: 0.0
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/y: 0.0
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/z: -0.1
 * /mavros/distance_sensor/sonar_1_sub/id: 2
 * /mavros/distance_sensor/sonar_1_sub/orientation: PITCH_270
 * /mavros/distance_sensor/sonar_1_sub/subscriber: True
 * /mavros/fake_gps/eph: 2.0
 * /mavros/fake_gps/epv: 2.0
 * /mavros/fake_gps/fix_type: 3
 * /mavros/fake_gps/geo_origin/alt: 408.0
 * /mavros/fake_gps/geo_origin/lat: 47.3667
 * /mavros/fake_gps/geo_origin/lon: 8.55
 * /mavros/fake_gps/gps_rate: 5.0
 * /mavros/fake_gps/mocap_transform: True
 * /mavros/fake_gps/satellites_visible: 5
 * /mavros/fake_gps/tf/child_frame_id: fix
 * /mavros/fake_gps/tf/frame_id: map
 * /mavros/fake_gps/tf/listen: False
 * /mavros/fake_gps/tf/rate_limit: 10.0
 * /mavros/fake_gps/tf/send: False
 * /mavros/fake_gps/use_mocap: True
 * /mavros/fake_gps/use_vision: False
 * /mavros/fcu_protocol: v2.0
 * /mavros/fcu_url: serial:///dev/tty...
 * /mavros/gcs_url: 
 * /mavros/global_position/child_frame_id: base_link
 * /mavros/global_position/frame_id: map
 * /mavros/global_position/rot_covariance: 99999.0
 * /mavros/global_position/tf/child_frame_id: base_link
 * /mavros/global_position/tf/frame_id: map
 * /mavros/global_position/tf/global_frame_id: earth
 * /mavros/global_position/tf/send: False
 * /mavros/global_position/use_relative_alt: True
 * /mavros/image/frame_id: px4flow
 * /mavros/imu/angular_velocity_stdev: 0.000349065850399
 * /mavros/imu/frame_id: base_link
 * /mavros/imu/linear_acceleration_stdev: 0.0003
 * /mavros/imu/magnetic_stdev: 0.0
 * /mavros/imu/orientation_stdev: 1.0
 * /mavros/local_position/frame_id: map
 * /mavros/local_position/tf/child_frame_id: base_link
 * /mavros/local_position/tf/frame_id: map
 * /mavros/local_position/tf/send: False
 * /mavros/local_position/tf/send_fcu: False
 * /mavros/mission/pull_after_gcs: True
 * /mavros/mocap/use_pose: True
 * /mavros/mocap/use_tf: False
 * /mavros/odometry/estimator_type: 3
 * /mavros/odometry/frame_tf/desired_frame: ned
 * /mavros/plugin_blacklist: ['safety_area', '...
 * /mavros/plugin_whitelist: []
 * /mavros/px4flow/frame_id: px4flow
 * /mavros/px4flow/ranger_fov: 0.118682389136
 * /mavros/px4flow/ranger_max_range: 5.0
 * /mavros/px4flow/ranger_min_range: 0.3
 * /mavros/safety_area/p1/x: 1.0
 * /mavros/safety_area/p1/y: 1.0
 * /mavros/safety_area/p1/z: 1.0
 * /mavros/safety_area/p2/x: -1.0
 * /mavros/safety_area/p2/y: -1.0
 * /mavros/safety_area/p2/z: -1.0
 * /mavros/setpoint_accel/send_force: False
 * /mavros/setpoint_attitude/reverse_thrust: False
 * /mavros/setpoint_attitude/tf/child_frame_id: target_attitude
 * /mavros/setpoint_attitude/tf/frame_id: map
 * /mavros/setpoint_attitude/tf/listen: False
 * /mavros/setpoint_attitude/tf/rate_limit: 50.0
 * /mavros/setpoint_attitude/use_quaternion: False
 * /mavros/setpoint_position/mav_frame: LOCAL_NED
 * /mavros/setpoint_position/tf/child_frame_id: target_position
 * /mavros/setpoint_position/tf/frame_id: map
 * /mavros/setpoint_position/tf/listen: False
 * /mavros/setpoint_position/tf/rate_limit: 50.0
 * /mavros/setpoint_velocity/mav_frame: LOCAL_NED
 * /mavros/startup_px4_usb_quirk: True
 * /mavros/sys/disable_diag: False
 * /mavros/sys/min_voltage: 10.0
 * /mavros/target_component_id: 1
 * /mavros/target_system_id: 1
 * /mavros/tdr_radio/low_rssi: 40
 * /mavros/time/time_ref_source: fcu
 * /mavros/time/timesync_avg_alpha: 0.6
 * /mavros/time/timesync_mode: MAVLINK
 * /mavros/vibration/frame_id: base_link
 * /mavros/vision_pose/tf/child_frame_id: vision_estimate
 * /mavros/vision_pose/tf/frame_id: map
 * /mavros/vision_pose/tf/listen: False
 * /mavros/vision_pose/tf/rate_limit: 10.0
 * /mavros/vision_speed/listen_twist: False
 * /rosdistro: kinetic
 * /rosversion: 1.12.12

NODES
  /
    mavros (mavros/mavros_node)

auto-starting new master
process[master]: started with pid [17743]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to 6a2de8ae-1c75-11e8-860a-ede8e7dd15d9
process[rosout-1]: started with pid [17756]
started core service [/rosout]
process[mavros-2]: started with pid [17774]
[ INFO] [1519815125.785860311]: FCU URL: serial:///dev/ttyUSB0:57600
[ INFO] [1519815125.787415096]: serial0: device: /dev/ttyUSB0 @ 57600 bps
[ INFO] [1519815125.791426150]: GCS bridge disabled
[ INFO] [1519815125.802962900]: Plugin 3dr_radio loaded
[ INFO] [1519815125.805502484]: Plugin 3dr_radio initialized
[ INFO] [1519815125.805620957]: Plugin actuator_control loaded
[ INFO] [1519815125.809467123]: Plugin actuator_control initialized
[ INFO] [1519815125.812044578]: Plugin adsb loaded
[ INFO] [1519815125.816480987]: Plugin adsb initialized
[ INFO] [1519815125.816662456]: Plugin altitude loaded
[ INFO] [1519815125.818267000]: Plugin altitude initialized
[ INFO] [1519815125.818445331]: Plugin cam_imu_sync loaded
[ INFO] [1519815125.819379953]: Plugin cam_imu_sync initialized
[ INFO] [1519815125.819566742]: Plugin command loaded
[ INFO] [1519815125.825743992]: Plugin command initialized
[ INFO] [1519815125.825884389]: Plugin debug_value loaded
[ INFO] [1519815125.831778145]: Plugin debug_value initialized
[ INFO] [1519815125.831835395]: Plugin distance_sensor blacklisted
[ INFO] [1519815125.831969474]: Plugin fake_gps loaded
[ INFO] [1519815125.850273926]: Plugin fake_gps initialized
[ INFO] [1519815125.850502641]: Plugin ftp loaded
[ INFO] [1519815125.858778255]: Plugin ftp initialized
[ INFO] [1519815125.858972972]: Plugin global_position loaded
[ INFO] [1519815125.880303259]: Plugin global_position initialized
[ INFO] [1519815125.880472822]: Plugin hil loaded
[ INFO] [1519815125.902185617]: Plugin hil initialized
[ INFO] [1519815125.902371581]: Plugin home_position loaded
[ INFO] [1519815125.907310015]: Plugin home_position initialized
[ INFO] [1519815125.907461731]: Plugin imu loaded
[ INFO] [1519815125.917171115]: Plugin imu initialized
[ INFO] [1519815125.917372569]: Plugin local_position loaded
[ INFO] [1519815125.925598692]: Plugin local_position initialized
[ INFO] [1519815125.925787326]: Plugin manual_control loaded
[ INFO] [1519815125.929266435]: Plugin manual_control initialized
[ INFO] [1519815125.929395846]: Plugin mocap_pose_estimate loaded
[ INFO] [1519815125.934541629]: Plugin mocap_pose_estimate initialized
[ INFO] [1519815125.934671524]: Plugin obstacle_distance loaded
[ INFO] [1519815125.937580893]: Plugin obstacle_distance initialized
[ INFO] [1519815125.937719948]: Plugin odom loaded
[ INFO] [1519815125.943146069]: Plugin odom initialized
[ INFO] [1519815125.943361630]: Plugin param loaded
[ INFO] [1519815125.946288617]: Plugin param initialized
[ INFO] [1519815125.946441966]: Plugin px4flow loaded
[ INFO] [1519815125.953382187]: Plugin px4flow initialized
[ INFO] [1519815125.953460144]: Plugin rangefinder blacklisted
[ INFO] [1519815125.953673394]: Plugin rc_io loaded
[ INFO] [1519815125.960049020]: Plugin rc_io initialized
[ INFO] [1519815125.960122596]: Plugin safety_area blacklisted
[ INFO] [1519815125.960291896]: Plugin setpoint_accel loaded
[ INFO] [1519815125.964530488]: Plugin setpoint_accel initialized
[ INFO] [1519815125.964840621]: Plugin setpoint_attitude loaded
[ INFO] [1519815125.978512008]: Plugin setpoint_attitude initialized
[ INFO] [1519815125.978717696]: Plugin setpoint_position loaded
[ INFO] [1519815125.997822171]: Plugin setpoint_position initialized
[ INFO] [1519815125.998096892]: Plugin setpoint_raw loaded
[ INFO] [1519815126.010722814]: Plugin setpoint_raw initialized
[ INFO] [1519815126.010948705]: Plugin setpoint_velocity loaded
[ INFO] [1519815126.018391023]: Plugin setpoint_velocity initialized
[ INFO] [1519815126.018676738]: Plugin sys_status loaded
[ INFO] [1519815126.026874823]: Plugin sys_status initialized
[ INFO] [1519815126.027085620]: Plugin sys_time loaded
[ INFO] [1519815126.031406746]: TM: Timesync mode: MAVLINK
[ INFO] [1519815126.032183548]: Plugin sys_time initialized
[ INFO] [1519815126.032338432]: Plugin vfr_hud loaded
[ INFO] [1519815126.033762802]: Plugin vfr_hud initialized
[ INFO] [1519815126.033819719]: Plugin vibration blacklisted
[ INFO] [1519815126.033944330]: Plugin vision_pose_estimate loaded
[ INFO] [1519815126.043889834]: Plugin vision_pose_estimate initialized
[ INFO] [1519815126.044078301]: Plugin vision_speed_estimate loaded
[ INFO] [1519815126.048241461]: Plugin vision_speed_estimate initialized
[ INFO] [1519815126.048416892]: Plugin waypoint loaded
[ INFO] [1519815126.054600953]: Plugin waypoint initialized
[ INFO] [1519815126.054694918]: Autostarting mavlink via USB on PX4
[ INFO] [1519815126.054866070]: Built-in SIMD instructions: SSE, SSE2
[ INFO] [1519815126.054917373]: Built-in MAVLink package version: 2018.2.2
[ INFO] [1519815126.054988867]: Known MAVLink dialects: common ardupilotmega ASLUAV autoquad matrixpilot paparazzi slugs standard uAvionix ualberta
[ INFO] [1519815126.055024560]: MAVROS started. MY ID 1.240, TARGET ID 1.1
[ WARN] [1519815126.317691808]: TM: Clock skew detected (-1519810930.435194254 s). Hard syncing clocks.
[ INFO] [1519815127.063695680]: CON: Got HEARTBEAT, connected. FCU: PX4 Autopilot
[ INFO] [1519815128.215641539]: VER: 1.1: Capabilities         0x000000000000e4ef
[ INFO] [1519815128.215743980]: VER: 1.1: Flight software:     010703ff (0000000053F1AECA)
[ INFO] [1519815128.215769502]: VER: 1.1: Middleware software: 010703ff (0000000053F1AECA)
[ INFO] [1519815128.215804020]: VER: 1.1: OS software:         071600ff (0000000000000000)
[ INFO] [1519815128.215900701]: VER: 1.1: Board hardware:      00000011
[ INFO] [1519815128.215930128]: VER: 1.1: VID/PID:             26ac:0011
[ INFO] [1519815128.215970497]: VER: 1.1: UID:                 3335511439383934
[ WARN] [1519815128.216132249]: CMD: Unexpected command 520, result 0
[ WARN] [1519815136.441063879]: TM: Clock skew detected (0.014767622 s). Hard syncing clocks.
[ INFO] [1519815137.064085468]: HP: requesting home position
[ INFO] [1519815142.152789499]: WP: mission received
[ WARN] [1519815142.747030922]: PR: request param #2 timeout, retries left 2, and 604 params still missing
[ WARN] [1519815143.914685383]: PR: request param #3 timeout, retries left 2, and 603 params still missing
[ WARN] [1519815145.015757503]: PR: request param #4 timeout, retries left 2, and 602 params still missing
[ WARN] [1519815146.110305336]: PR: request param #5 timeout, retries left 2, and 601 params still missing
[ WARN] [1519815146.480606241]: TM: Clock skew detected (0.014176252 s). Hard syncing clocks.
[ INFO] [1519815147.064341231]: HP: requesting home position
[ WARN] [1519815147.227416833]: PR: request param #6 timeout, retries left 2, and 600 params still missing
[ WARN] [1519815148.330693955]: PR: request param #7 timeout, retries left 2, and 599 params still missing
[ WARN] [1519815149.414309780]: PR: request param #8 timeout, retries left 2, and 598 params still missing
[ WARN] [1519815150.507675277]: PR: request param #9 timeout, retries left 2, and 597 params still missing
[ WARN] [1519815151.619777899]: PR: request param #10 timeout, retries left 2, and 596 params still missing
[ WARN] [1519815152.727306684]: PR: request param #11 timeout, retries left 2, and 595 params still missing
[ WARN] [1519815153.820295438]: PR: request param #12 timeout, retries left 2, and 594 params still missing
[ WARN] [1519815154.959794621]: PR: request param #13 timeout, retries left 2, and 593 params still missing
[ WARN] [1519815156.044687731]: PR: request param #14 timeout, retries left 2, and 592 params still missing
[ WARN] [1519815156.505493512]: TM: Clock skew detected (-0.031853151 s). Hard syncing clocks.
[ INFO] [1519815157.064142745]: HP: requesting home position
[ WARN] [1519815157.154009420]: PR: request param #15 timeout, retries left 2, and 591 params still missing
[ WARN] [1519815158.274030611]: PR: request param #16 timeout, retries left 2, and 590 params still missing
[ WARN] [1519815159.371768068]: PR: request param #17 timeout, retries left 2, and 589 params still missing
[ WARN] [1519815160.459722145]: PR: request param #18 timeout, retries left 2, and 588 params still missing
[ WARN] [1519815161.571435853]: PR: request param #19 timeout, retries left 2, and 587 params still missing
[ WARN] [1519815162.723703855]: PR: request param #20 timeout, retries left 2, and 586 params still missing
[ WARN] [1519815163.883538364]: PR: request param #21 timeout, retries left 2, and 585 params still missing
[ WARN] [1519815165.038612888]: PR: request param #22 timeout, retries left 2, and 584 params still missing
[ WARN] [1519815166.193367050]: PR: request param #23 timeout, retries left 2, and 583 params still missing
[ WARN] [1519815166.627539713]: TM: Clock skew detected (-0.017975248 s). Hard syncing clocks.
[ INFO] [1519815167.064372075]: HP: requesting home position
[ WARN] [1519815167.356112024]: PR: request param #24 timeout, retries left 2, and 582 params still missing
[ WARN] [1519815168.557162913]: PR: request param #25 timeout, retries left 2, and 581 params still missing
[ WARN] [1519815169.663000223]: PR: request param #26 timeout, retries left 2, and 580 params still missing
[ WARN] [1519815170.785905938]: PR: request param #27 timeout, retries left 2, and 579 params still missing
[ WARN] [1519815171.934238928]: PR: request param #28 timeout, retries left 2, and 578 params still missing
[ WARN] [1519815173.170265273]: PR: request param #29 timeout, retries left 2, and 577 params still missing
[ WARN] [1519815174.271998590]: PR: request param #30 timeout, retries left 2, and 576 params still missing
[ WARN] [1519815175.386442391]: PR: request param #32 timeout, retries left 2, and 575 params still missing
[ WARN] [1519815176.529153480]: PR: request param #33 timeout, retries left 2, and 574 params still missing
[ WARN] [1519815176.940652732]: TM: Clock skew detected (0.034292656 s). Hard syncing clocks.
[ INFO] [1519815177.064931243]: HP: requesting home position
[ WARN] [1519815177.686699536]: PR: request param #34 timeout, retries left 2, and 573 params still missing
[ WARN] [1519815178.848052580]: PR: request param #35 timeout, retries left 2, and 572 params still missing
[ WARN] [1519815179.971291122]: PR: request param #36 timeout, retries left 2, and 571 params still missing
[ WARN] [1519815181.095604705]: PR: request param #37 timeout, retries left 2, and 570 params still missing
[ WARN] [1519815182.201501821]: PR: request param #38 timeout, retries left 2, and 569 params still missing
[ WARN] [1519815183.298825826]: PR: request param #39 timeout, retries left 2, and 568 params still missing
[ WARN] [1519815184.389778775]: PR: request param #40 timeout, retries left 2, and 567 params still missing
[ WARN] [1519815185.498236372]: PR: request param #41 timeout, retries left 2, and 566 params still missing
[ WARN] [1519815186.598679956]: PR: request param #42 timeout, retries left 2, and 565 params still missing
[ WARN] [1519815187.055683603]: TM: Clock skew detected (-0.012048790 s). Hard syncing clocks.
[ INFO] [1519815187.064318216]: HP: requesting home position
[ WARN] [1519815187.726455928]: PR: request param #43 timeout, retries left 2, and 564 params still missing
[ WARN] [1519815188.808105884]: PR: request param #44 timeout, retries left 2, and 563 params still missing
[ WARN] [1519815189.918229700]: PR: request param #45 timeout, retries left 2, and 562 params still missing
[ WARN] [1519815191.013820415]: PR: request param #46 timeout, retries left 2, and 561 params still missing
[ WARN] [1519815192.141792511]: PR: request param #47 timeout, retries left 2, and 560 params still missing
[ WARN] [1519815193.247475632]: PR: request param #48 timeout, retries left 2, and 559 params still missing
[ WARN] [1519815194.344792310]: PR: request param #49 timeout, retries left 2, and 558 params still missing
[ WARN] [1519815195.524634887]: PR: request param #50 timeout, retries left 2, and 557 params still missing
[ WARN] [1519815196.688751795]: PR: request param #51 timeout, retries left 2, and 556 params still missing
[ INFO] [1519815197.064642961]: HP: requesting home position
[ WARN] [1519815197.218541818]: TM: Clock skew detected (-0.023424532 s). Hard syncing clocks.
[ WARN] [1519815197.825394614]: PR: request param #52 timeout, retries left 2, and 555 params still missing
[ WARN] [1519815198.939692915]: PR: request param #53 timeout, retries left 2, and 554 params still missing
[ WARN] [1519815200.037458586]: PR: request param #54 timeout, retries left 2, and 553 params still missing
[ WARN] [1519815201.144528953]: PR: request param #55 timeout, retries left 2, and 552 params still missing
[ WARN] [1519815202.255640337]: PR: request param #56 timeout, retries left 2, and 551 params still missing
[ WARN] [1519815203.356053543]: PR: request param #57 timeout, retries left 2, and 550 params still missing
[ WARN] [1519815204.455156481]: PR: request param #58 timeout, retries left 2, and 549 params still missing
[ WARN] [1519815205.567599963]: PR: request param #59 timeout, retries left 2, and 548 params still missing
[ WARN] [1519815206.670636343]: PR: request param #60 timeout, retries left 2, and 547 params still missing
[ INFO] [1519815207.064052802]: HP: requesting home position
[ WARN] [1519815207.321503474]: TM: Clock skew detected (-0.047023786 s). Hard syncing clocks.
[ WARN] [1519815207.812773120]: PR: request param #61 timeout, retries left 2, and 546 params still missing
[ WARN] [1519815208.911466171]: PR: request param #63 timeout, retries left 2, and 545 params still missing
[ WARN] [1519815209.987676264]: PR: request param #64 timeout, retries left 2, and 544 params still missing
[ WARN] [1519815211.078713220]: PR: request param #65 timeout, retries left 2, and 543 params still missing
[ WARN] [1519815212.214119155]: PR: request param #66 timeout, retries left 2, and 542 params still missing
[ WARN] [1519815213.344400541]: PR: request param #67 timeout, retries left 2, and 541 params still missing
[ WARN] [1519815214.586587182]: PR: request param #68 timeout, retries left 2, and 540 params still missing
[ WARN] [1519815215.685299306]: PR: request param #69 timeout, retries left 2, and 539 params still missing
[ WARN] [1519815216.822111286]: PR: request param #70 timeout, retries left 2, and 538 params still missing
[ INFO] [1519815217.064930196]: HP: requesting home position
[ WARN] [1519815217.423580120]: TM: Clock skew detected (-0.020748166 s). Hard syncing clocks.
[ WARN] [1519815217.947964442]: PR: request param #71 timeout, retries left 2, and 537 params still missing
[ WARN] [1519815219.171480153]: PR: request param #72 timeout, retries left 2, and 536 params still missing
[ WARN] [1519815220.296434782]: PR: request param #73 timeout, retries left 2, and 535 params still missing
[ WARN] [1519815221.414050540]: PR: request param #74 timeout, retries left 2, and 534 params still missing
[ WARN] [1519815222.548394014]: PR: request param #75 timeout, retries left 2, and 533 params still missing
[ WARN] [1519815223.788486898]: PR: request param #76 timeout, retries left 2, and 532 params still missing
[ WARN] [1519815224.928545387]: PR: request param #77 timeout, retries left 2, and 531 params still missing
[ WARN] [1519815226.022381658]: PR: request param #79 timeout, retries left 2, and 530 params still missing
[ INFO] [1519815227.064606353]: HP: requesting home position
[ WARN] [1519815227.154923458]: PR: request param #80 timeout, retries left 2, and 529 params still missing
[ WARN] [1519815227.550507751]: TM: Clock skew detected (-0.023448128 s). Hard syncing clocks.
[ WARN] [1519815228.408573587]: PR: request param #81 timeout, retries left 2, and 528 params still missing
[ WARN] [1519815229.526278866]: PR: request param #82 timeout, retries left 2, and 527 params still missing
[ WARN] [1519815230.619970500]: PR: request param #83 timeout, retries left 2, and 526 params still missing
[ WARN] [1519815231.775941471]: PR: request param #84 timeout, retries left 2, and 525 params still missing
[ WARN] [1519815232.981139004]: PR: request param #85 timeout, retries left 2, and 524 params still missing
[ WARN] [1519815234.090256385]: PR: request param #86 timeout, retries left 2, and 523 params still missing
[ WARN] [1519815235.216676325]: PR: request param #87 timeout, retries left 2, and 522 params still missing
[ WARN] [1519815236.350818708]: PR: request param #88 timeout, retries left 2, and 521 params still missing
[ INFO] [1519815237.064175869]: HP: requesting home position
[ WARN] [1519815237.478184820]: PR: request param #89 timeout, retries left 2, and 520 params still missing
[ WARN] [1519815237.678565133]: TM: Clock skew detected (-0.020798910 s). Hard syncing clocks.
[ WARN] [1519815238.599444759]: PR: request param #90 timeout, retries left 2, and 519 params still missing
[ WARN] [1519815239.794552480]: PR: request param #91 timeout, retries left 2, and 518 params still missing
[ WARN] [1519815240.902692864]: PR: request param #92 timeout, retries left 2, and 517 params still missing
[ WARN] [1519815242.021754524]: PR: request param #93 timeout, retries left 2, and 516 params still missing
[ WARN] [1519815243.136702929]: PR: request param #94 timeout, retries left 2, and 515 params still missing
[ WARN] [1519815244.247310228]: PR: request param #95 timeout, retries left 2, and 514 params still missing
[ WARN] [1519815245.350844087]: PR: request param #96 timeout, retries left 2, and 513 params still missing
[ WARN] [1519815246.447013883]: PR: request param #97 timeout, retries left 2, and 512 params still missing
[ INFO] [1519815247.064698197]: HP: requesting home position
[ WARN] [1519815247.542901637]: PR: request param #98 timeout, retries left 2, and 511 params still missing
[ WARN] [1519815247.806531325]: TM: Clock skew detected (-0.034988537 s). Hard syncing clocks.
[ WARN] [1519815248.648446811]: PR: request param #99 timeout, retries left 2, and 510 params still missing
[ WARN] [1519815249.758097779]: PR: request param #100 timeout, retries left 2, and 509 params still missing
[ WARN] [1519815250.868508319]: PR: request param #101 timeout, retries left 2, and 508 params still missing
[ WARN] [1519815251.976006120]: PR: request param #102 timeout, retries left 2, and 507 params still missing
[ WARN] [1519815253.085463286]: PR: request param #103 timeout, retries left 2, and 506 params still missing
[ WARN] [1519815254.194106789]: PR: request param #104 timeout, retries left 2, and 505 params still missing
[ WARN] [1519815255.305798266]: PR: request param #105 timeout, retries left 2, and 504 params still missing
[ WARN] [1519815256.384150839]: PR: request param #106 timeout, retries left 2, and 503 params still missing
[ INFO] [1519815257.065252241]: HP: requesting home position
[ WARN] [1519815257.478427337]: PR: request param #107 timeout, retries left 2, and 502 params still missing
[ WARN] [1519815257.941123129]: TM: Clock skew detected (-0.032143382 s). Hard syncing clocks.
[ WARN] [1519815258.590573772]: PR: request param #108 timeout, retries left 2, and 501 params still missing
[ WARN] [1519815259.737701130]: PR: request param #109 timeout, retries left 2, and 500 params still missing
[ WARN] [1519815260.958069332]: PR: request param #110 timeout, retries left 2, and 499 params still missing
[ WARN] [1519815262.075086670]: PR: request param #111 timeout, retries left 2, and 498 params still missing
[ WARN] [1519815263.218350798]: PR: request param #112 timeout, retries left 2, and 497 params still missing
[ WARN] [1519815264.295615623]: PR: request param #113 timeout, retries left 2, and 496 params still missing
[ WARN] [1519815265.431015230]: PR: request param #114 timeout, retries left 2, and 495 params still missing
[ WARN] [1519815266.519713974]: PR: request param #115 timeout, retries left 2, and 494 params still missing
[ INFO] [1519815267.063955344]: HP: requesting home position
[ WARN] [1519815267.623891446]: PR: request param #116 timeout, retries left 2, and 493 params still missing
[ WARN] [1519815268.097601391]: TM: Clock skew detected (-0.032962125 s). Hard syncing clocks.
[ WARN] [1519815268.721513113]: PR: request param #117 timeout, retries left 2, and 492 params still missing
[ WARN] [1519815269.825928357]: PR: request param #118 timeout, retries left 2, and 491 params still missing
[ WARN] [1519815270.996090196]: PR: request param #119 timeout, retries left 2, and 490 params still missing
[ WARN] [1519815272.187108775]: PR: request param #120 timeout, retries left 2, and 489 params still missing
[ WARN] [1519815273.330281219]: PR: request param #121 timeout, retries left 2, and 488 params still missing
[ WARN] [1519815274.424011643]: PR: request param #122 timeout, retries left 2, and 487 params still missing
[ WARN] [1519815275.506416772]: PR: request param #123 timeout, retries left 2, and 486 params still missing
[ WARN] [1519815276.619276465]: PR: request param #124 timeout, retries left 2, and 485 params still missing
[ INFO] [1519815277.064800059]: HP: requesting home position
[ WARN] [1519815277.724014585]: PR: request param #126 timeout, retries left 2, and 484 params still missing
[ WARN] [1519815278.218564724]: TM: Clock skew detected (-0.023700694 s). Hard syncing clocks.
[ WARN] [1519815278.828365898]: PR: request param #127 timeout, retries left 2, and 483 params still missing
[ WARN] [1519815279.923105084]: PR: request param #129 timeout, retries left 2, and 482 params still missing
[ WARN] [1519815281.017700449]: PR: request param #130 timeout, retries left 2, and 481 params still missing
[ WARN] [1519815282.137571241]: PR: request param #131 timeout, retries left 2, and 480 params still missing
[ WARN] [1519815283.267875429]: PR: request param #132 timeout, retries left 2, and 479 params still missing
[ WARN] [1519815284.361308087]: PR: request param #133 timeout, retries left 2, and 478 params still missing
[ WARN] [1519815285.470734813]: PR: request param #134 timeout, retries left 2, and 477 params still missing
[ WARN] [1519815286.576911308]: PR: request param #135 timeout, retries left 2, and 476 params still missing
[ INFO] [1519815287.065753578]: HP: requesting home position
[ WARN] [1519815287.690905946]: PR: request param #136 timeout, retries left 2, and 475 params still missing
[ WARN] [1519815288.325534112]: TM: Clock skew detected (-0.050610138 s). Hard syncing clocks.
[ WARN] [1519815288.804562276]: PR: request param #137 timeout, retries left 2, and 474 params still missing
[ WARN] [1519815289.901532916]: PR: request param #138 timeout, retries left 2, and 473 params still missing
[ WARN] [1519815291.006919623]: PR: request param #139 timeout, retries left 2, and 472 params still missing
[ WARN] [1519815292.129576108]: PR: request param #140 timeout, retries left 2, and 471 params still missing
[ WARN] [1519815293.215212526]: PR: request param #141 timeout, retries left 2, and 470 params still missing
[ WARN] [1519815294.327369117]: PR: request param #142 timeout, retries left 2, and 469 params still missing
[ WARN] [1519815295.411146555]: PR: request param #143 timeout, retries left 2, and 468 params still missing
[ WARN] [1519815296.521341269]: PR: request param #144 timeout, retries left 2, and 467 params still missing
[ INFO] [1519815297.064388589]: HP: requesting home position
[ WARN] [1519815297.605228289]: PR: request param #145 timeout, retries left 2, and 466 params still missing
[ WARN] [1519815298.448521244]: TM: Clock skew detected (-0.025616886 s). Hard syncing clocks.
[ WARN] [1519815298.700879538]: PR: request param #146 timeout, retries left 2, and 465 params still missing
[ WARN] [1519815299.813796155]: PR: request param #147 timeout, retries left 2, and 464 params still missing
[ WARN] [1519815300.941362501]: PR: request param #148 timeout, retries left 2, and 463 params still missing
[ WARN] [1519815302.038699606]: PR: request param #149 timeout, retries left 2, and 462 params still missing
[ WARN] [1519815303.149194535]: PR: request param #150 timeout, retries left 2, and 461 params still missing
[ WARN] [1519815304.247371487]: PR: request param #151 timeout, retries left 2, and 460 params still missing
[ WARN] [1519815305.448071121]: PR: request param #152 timeout, retries left 2, and 459 params still missing
[ WARN] [1519815306.644039540]: PR: request param #153 timeout, retries left 2, and 458 params still missing
[ INFO] [1519815307.064145831]: HP: requesting home position
[ WARN] [1519815307.726014428]: PR: request param #154 timeout, retries left 2, and 457 params still missing
[ WARN] [1519815308.565434450]: TM: Clock skew detected (-0.033900500 s). Hard syncing clocks.
[ WARN] [1519815308.849359802]: PR: request param #155 timeout, retries left 2, and 456 params still missing
[ WARN] [1519815310.029480805]: PR: request param #156 timeout, retries left 2, and 455 params still missing

Diagnostics

rostopic echo -n1 /diagnostics
header: 
  seq: 18
  stamp: 
    secs: 1519815520
    nsecs: 778829986
  frame_id: ''
status: 
  - 
    level: 0
    name: "mavros: FCU connection"
    message: "connected"
    hardware_id: "serial:///dev/ttyUSB0:57600"
    values: 
      - 
        key: "Received packets:"
        value: "413"
      - 
        key: "Dropped packets:"
        value: "0"
      - 
        key: "Buffer overruns:"
        value: "0"
      - 
        key: "Parse errors:"
        value: "0"
      - 
        key: "Rx sequence number:"
        value: "168"
      - 
        key: "Tx sequence number:"
        value: "214"
      - 
        key: "Rx total bytes:"
        value: "26951"
      - 
        key: "Tx total bytes:"
        value: "5709"
      - 
        key: "Rx speed:"
        value: "822.000000"
      - 
        key: "Tx speed:"
        value: "320.000000"
  - 
    level: 0
    name: "mavros: GPS"
    message: "3D fix"
    hardware_id: "serial:///dev/ttyUSB0:57600"
    values: 
      - 
        key: "Satellites visible"
        value: "11"
      - 
        key: "Fix type"
        value: "3"
      - 
        key: "EPH (m)"
        value: "0.83"
      - 
        key: "EPV (m)"
        value: "1.19"
  - 
    level: 0
    name: "mavros: Heartbeat"
    message: "Normal"
    hardware_id: "serial:///dev/ttyUSB0:57600"
    values: 
      - 
        key: "Heartbeats since startup"
        value: "13"
      - 
        key: "Frequency (Hz)"
        value: "0.666634"
      - 
        key: "Vehicle type"
        value: "Quadrotor"
      - 
        key: "Autopilot type"
        value: "PX4 Autopilot"
      - 
        key: "Mode"
        value: "AUTO.LOITER"
      - 
        key: "System status"
        value: "Standby"
  - 
    level: 0
    name: "mavros: System"
    message: "Normal"
    hardware_id: "serial:///dev/ttyUSB0:57600"
    values: 
      - 
        key: "Sensor present"
        value: "0x00000000"
      - 
        key: "Sensor enabled"
        value: "0x00000000"
      - 
        key: "Sensor helth"
        value: "0x00000000"
      - 
        key: "CPU Load (%)"
        value: "44.6"
      - 
        key: "Drop rate (%)"
        value: "0.0"
      - 
        key: "Errors comm"
        value: "0"
      - 
        key: "Errors count #1"
        value: "0"
      - 
        key: "Errors count #2"
        value: "0"
      - 
        key: "Errors count #3"
        value: "0"
      - 
        key: "Errors count #4"
        value: "0"
  - 
    level: 0
    name: "mavros: Battery"
    message: "Normal"
    hardware_id: "serial:///dev/ttyUSB0:57600"
    values: 
      - 
        key: "Voltage"
        value: "12.16"
      - 
        key: "Current"
        value: "0.0"
      - 
        key: "Remaining"
        value: "99.0"
  - 
    level: 2
    name: "mavros: Time Sync"
    message: "No events recorded."
    hardware_id: "serial:///dev/ttyUSB0:57600"
    values: 
      - 
        key: "Timesyncs since startup"
        value: "0"
      - 
        key: "Frequency (Hz)"
        value: "0.000000"
      - 
        key: "Last dt (ms)"
        value: "-9.916274"
      - 
        key: "Mean dt (ms)"
        value: "0.000000"
      - 
        key: "Last system time (s)"
        value: "4590.244069000"
      - 
        key: "Time offset (s)"
        value: "1519810930.376954794"

Check ID

rosrun mavros checkid

OK. I got messages from 1:1.

---
Received 433 messages, from 1 addresses
sys:comp   list of messages
  1:1     0, 1, 2, 36, 230, 33, 74, 231, 141, 111, 241, 242, 147, 245, 22, 24, 30

[vooon]

Looks like you have problems with serial link quality (do you use shielding?).
And perhaps 57k is too slow for companion link. Try sub 1M (but electrical interference may become more trouble).

[Ahrovan]

I have three questions @vooon :

1. What is the correct choice for [?ids=sysid,compid] in PX4 for MAVROS command.
2. In my case TELEM2 connected to MAVROS in Companion Computer with 57600 baud rate (checked with PX4 SYS_COMPANION parameter), And TELEM1 connected to QGC with XBee-Pro® 900HP (XBP9B-DMST-002), but I can't find any PX4 parameter for TELEM1 setting.
3. warning "TM: Clock skew detected (-0.050610138 s). Hard syncing clocks." says Companion Computer has (-0.050610138 s) difference with what?! and how to solve that?

[vooon]

1. Leave defaults. This arg overrides mavros ids.
2. Check SYS_COMPANION docs, it has several special values for things like OSD. Try 921600.
3. Is result of low link speed or wrong configuration. Right now may be ignored.

[Ahrovan]

@vooon

1. I had to change it when I used apm. Now that I use px4, I said maybe it should change
2. dev.px4.io:

0 to disable MAVLink output on TELEM2 (default)
921600 to enable MAVLink output at 921600 baud, 8N1 (recommended)
57600 to enable MAVLink output at 57600 baud, 8N1
157600 to enable MAVLink in OSD mode at 57600 baud
257600 to enable MAVLink in listen-only mode at 57600 baud

My question is all that is said, is just about TELEM2? How about TELEM1 and where is parameters for TELEM1 setting?
3. Wrong configuration in what case or setting? In PX4 or MAVROS

[lamping7]

Just set SYS_COMPANION to 921600 and try roslaunch mavros px4.launch fcu_url:="/dev/ttyUSB0:921600". This has nothing to do with TELEM1.

[Ahrovan]

@lamping7 ok I khow that. now how to change setting for TELEM1 and other serial port's

[71f681c20d]

Please please help me I have th exact same problem!!!

[71f681c20d]

My research project still needs to get off the ground, and I can make it work. I have the same exact problem and I am so frustrated by this error... Has anyone figure this out?? Please help and post what you did to make it work

[Ahrovan]

@alexwb1 Just set SYS_COMPANION to 921600, I try this and problem solved

[hamdaan19]

@alexwb1 Just set SYS_COMPANION to 921600, I try this and problem solved

How do I set SYS_COMPANION to 921600. Can you please mention the steps to do so? @Ahrovan