how can I make the simulink model to save some array data or ROS2 bag log in SD card in jetson nano

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Chulhoon Lee
Chulhoon Lee 2023-4-19
回答： Josh Chen 2023-4-24
How can I make the simulink model to save some results data or ROS2 bag log in SD Card in Jetson Nano?
I made the Simulink model that can be read some ROS2 data and calculate them with some logic.
I just want to save the calculated results in SD Card in Jetson Nano board, and the Simulink model is just embedded in Jetson Nano momory.
I cannnot found some block or setting(option) for save the data in SD Card.
If the calculated result cannot save in the SD card as array, I just want to know how can I save ROS2 bag log in SD card?

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回答（1 个）

Josh Chen
Josh Chen 2023-4-24
Hi Chulhoon,
What is the data type of your results?
One idea is to use Publish blocks to publish the result back to ROS 2 network. Meanwhile, you can open another terminal and use ros2 bag record to save it to a ROS 2 bag file:
$ ros2 bag record <topic_name>
Another idea is to use "To File" block. However, this block has some limitations as mentioned in the link.
Hope this helps,
Thanks,
Josh

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