Difference between revisions of "Contributions:Biosemi2ADC"
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===TriggerChList=== | ===TriggerChList=== | ||
| − | The old '''PostfixTriggers''' parameter has been replaced by this, a list of indices (each in the range 1 through 16 inclusive) indicating which one-bit trigger channels to postfix after the EEG and AIB channels | + | The old '''PostfixTriggers''' parameter has been replaced by this, a list of indices (each in the range 1 through 16 inclusive) indicating which one-bit trigger channels to postfix after the EEG and AIB channels. By default, all 16 are postfixed. |
==States== | ==States== | ||
Revision as of 13:52, 8 November 2008
Contents
Synopsis
Beta Version of the BIOSEMI acquisition module.
Location
http://www.bci2000.org/svn/trunk/src/contrib/SignalSource/Biosemi
Versioning
Authors
Samuel A. Inverso (samuel.inverso@gmail.com), Yang Zhen, Maria Laura Blefari, Jeremy Hill
Version History
Revision 2.0 2008/11/07 jhill: Updated design, including support for an auxiliary Analog Input Box (AIB) EEG + AIB acquisition tested---triggers not.
Revision 1.2 2008/10/25 Maria Laura Blefari: Fixed the ERROR: Mode changed from 4 to 0
Revision 1.1.1 2005/12/14 15:24:15 mellinger: Fixed state name typo in Process().
Revision 1.1 2005/12/12 00:05:24 sinverso Initial Revision: Working and tested offline. Not tested in real experiments.
Source Code Revisions
- Initial development: 960
- Tested under: 2189
- Known to compile under: 2189
- Broken since: --
Functional Description
Acquires from a Biosemi Act2. Version 1.0 tested with a MK1. Versions 1.2 and up tested on a MK2.
EEG channels, Analog Input Box (AIB) channels, and one-bit channels reflecting the digital trigger input states are acquired in sync.
Warning: If TriggerChList is empty, the trigger values will not be saved in the data files and are not recoverable.
Installation
Copy the Labview_DLL.dll to the prog directory for the module to work.
Parameters
As of version 2.0 (svn revision 2189) the old parameters PostFixTriggers and TriggerScaleMultiplier have been removed. The functionality of the former is replaced by TriggerChList and the latter can be simulated by setting the corresponding elements of SourceChGain accordingly.
EEGChlist
A list of (one-based) indices to the EEG channels to be acquired. If there are n indices in this list, then the first n channels will be EEG channels.
AIBChList
A list of indices (each in the range 1 through 32 inclusive) indicating which Analog Input Box channels are to be acquired. By default, none are acquired. AIB channels are postfixed immediately following the EEG channels.
TriggerChList
The old PostfixTriggers parameter has been replaced by this, a list of indices (each in the range 1 through 16 inclusive) indicating which one-bit trigger channels to postfix after the EEG and AIB channels. By default, all 16 are postfixed.
States
BatteryLow
Set to 1 when hardware reports low battery state.
MODE
The mode corresponding to the one on the front of the Biosemi box.
MK2
Set to 1 when connected to an MK2.
