micro-ROS publisher always printing "dat:0" on ROS2 echo instead of the updated values

MAIN.C 6.txt

I am working on a micro-ROS example on a TRAVEO™ T2G MCU using a custom UART transport. The code is based on the "data

MAIN.C 6.txt

" style micro-ROS publisher/subscriber example, but I have modified it slightly.

Here is the situation:

1. I have a publisher that is supposed to send an integer value (std_msgs/msg/Int32) periodically using a ROS timer.

2. I am running ros2 topic echo /traveo_publisher on the host PC to see the published messages this will give value never changes to from 0 . it is publishing periodically but within same incorrect value.

3. I am successfully connecting to the ROS 2 agent (no connection error), and I do see messages being published.

4. However, the message always shows data: 0 instead of the value I expect (for example 123 or incrementing numbers).

5. The value does not update continuously as I move around in my code or directory — it just stays the same in ROS 2 echo output.

添付された MAIN.C 6.txt ファイルと micro-ROS のデータパブリッシャー／サブスクライバーの例から始め、次に TRAVEO T2G custom UART transport に対して ros2 topic echo /traveo_publisher を実行します。std_msgs/msg/Int32 の値がどこで割り当てられ、パブリッシュされているかを追跡します。echo の出力が常に data: 0 を表示するのではなく、期待される値またはインクリメントされた値を反映すれば完了です。