Capturing Serial Data in Realterm
Once you can see packets of data coming into Realterm, you can capture them to a text file.
Change to the Capture tab.
Set the End After setting to about 5 seconds.
Make sure Direct Capture is checked. This will stop sending data to the screen during capture, which takes computer time, and will prevent missing characters in the captured file.
Click Start: Overwrite to capture the file to the specified location.