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

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?

Answer 1

[Josh Chen]

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