Sorry to revive this ancient thread. I'm having similar issues with the Digitizer. I can establish a serial port connection with the Polhemus Patriot device. However, when I try to digitise a location, I get:
Error reading data point. Try again.
If the problem persists, reset the serial connection.
This is followed by a non-sensical string of characters.
I also noticed that the names of the locations in the montage are not displayed correctly. I'm using the biosemi64 10-10 montage. The names of the channels appear as non-sensical strings, too.
Software versions:
Brainstorm: latest (April 2022)
Matlab: R2019b
If anyone experienced similar issues and managed to resolve them, I'd be extremely grateful for some suggestions!