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Migrate to ROS 2 Dashing #26
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シリアルのread()でブロッキングすると、ノードが常に通信するため、ros2 のserviceに応答しなくなることが分かりました。 確認方法 # ノードを立ち上げた後、別ターミナルで↓
$ ros2 lifecycle set rt_usb_9axisimu_driver configure
$ ros2 lifecycle set rt_usb_9axisimu_driver activate
# ノードのライフサイクル状態を取得するサービスをコールする
$ ros2 lifecycle get
/rt_usb_9axisimu_driver: active [3]
$ ros2 lifecycle get
# 応答なし・・・ 21d887c で、ポートOpen時にO_NONBLOCKオプション追加して対策しました。 |
Tiryoh
approved these changes
Sep 1, 2020
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実機にてROSのトピックが配信されていることを確認しました。またframe_id, port等パラメータもlaunchファイルを編集して反映できることを確認しました。
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What does this implement/fix?
ROS2 Dashingへの対応です。
ROS1ノードと違い、ComponentとLifecycle機能を追加しています。
Lifecycleについて
Component について
rt_usb_9axisimu_driver::Driver
というコンポーネントを作成しますrt_usb_9axisimu_driver_node
を用意していますLaunchファイルについて
rt_usb_9axisimu_driver_node
を呼び出すrt_usb_9axisimu_driver.launch.py
を用意していますLintについて
ament_lint
でフォーマットを整えていますが、このパッケージでは使用していませんBSD-3-Clause License
の検出に対応していないため、どうやってもテストに失敗するためですHow has this been tested?
Checklists