Multichannel Systems STG4004+STG4008 Manual - Manual (Page 69)

Synchronizing Events
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Assignment of the digital inputs D7 to D0:
The user is asked to compose his own stimulation pattern files. Please do not create too big
stimulus files, because all files are completely downloaded, and stored in the memory of the STG.
If the files contain too much data, and you apply a lot of files, you will get an error message on
download. The advantage of this mode is to have all stimulus files directly in the memory of the
STG, and thus there is no time lag when starting a new stimulus pattern on each trigger.
To arrange the created stimulation files, you have to click on the grey square on the right side
of each row. A dialog will open, and you can choose the file you want to place in this position.
The complete arrangement of the files can be saved as “Extended Multi File” configuration file
with the command "Save", and load again with "Load". The configuration file for the “Extended
Multi File Mode” has the extension *.mf2.
When using the option "Show all Patterns" it would be hard to fill in files to each of the
256 positions. You can shorten the procedure by editing an available “Extended Multi File”
with a common editor.