Multichannel Systems STG4004+STG4008 Manual - Manual (Page 53)

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8 Downloading Stimuli
8.1 Downloading Stimulus Files
After having set up the stimulus file, you can download the file to the connected STG.
You can select the channels that you want to download or download the complete file.
You can start the stimulation directly after the download, or start it manually with the
software or hardware controls, or start it on a trigger. See also chapter "Operating the STG"
for more information.
Warning: Check the file thoroughly before downloading it on the STG. The stimulus display
is independent from the worksheet and from the download. Verify that you download
only
the channels that you want to use. Do not start the STG if you are not sure about the channel
configuration or the nature of the downloaded file.
1. Select the channels for downloading under Download Channel and Download Sync.
2. On the STG menu, click Download or click on the toolbar to download only the selected
channels onto the STG or Download and Start to download only the selected channels
and start the stimulation directly after the complete download.
Disable / enable warning messages
Cancel this option to disable the message boxes displaying compiler warnings during stimulus
download.
The two error messages that can be disabled are: "Warning: Signal length shorter than the
maximum" and "Warning: Non zero last amplitude value". They may present a nuisance
if you download multiple stimulus files in batch mode.
 On the Settings menu, select or deselect Enable Compiler Warnings.
8.1.1 Download Modes
Default Mode
When downloading files created in MC_Stimulus II software to a stimulus generator of the
STG4000 series, two different download modes are available. In “Default mode”, for each
download all channels are stopped and cleared before the new paradigm is downloaded.
All available channels are downloaded one after the other regardless of the space each channel
needs, which means that the available memory is optimally used. This mode should always be
used when large and complicated stimulation patterns are used, for example white noise
stimulation.