Contributions:Biosemi2ADC - Revision history

Mellinger: /* Installation */

2011-07-12T13:15:56Z

Installation

← Older revision		Revision as of 13:15, 12 July 2011
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	==Installation==		==Installation==
	Copy the Labview_DLL.dll to the prog directory for the module to work.		Copy the Labview_DLL.dll to the prog directory for the module to work. (In the BCI2000 Contrib distribution, that DLL is already in place.)
			If you experience problems with the Biosemi 2 source module, uninstall the 'Labview Run time engine' included in the Active View CD (as suggested by Hohyun Cho).

	==Parameters==		==Parameters==

Jhill: /* EEGChlist */

2010-03-08T13:33:26Z

EEGChlist

← Older revision		Revision as of 13:33, 8 March 2010
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	===EEGChlist===		===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.		A list of (one-based) indices to the EEG channels to be acquired. These EEG channels appear first in the final ordering, before AIB and trigger channels.

	===AIBChList===		===AIBChList===

Gschalk at 17:14, 4 March 2010

2010-03-04T17:14:19Z

← Older revision		Revision as of 17:14, 4 March 2010
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	===Version History===		===Version History===
	Revision 2.2 2010/03/24 gschalk:		Revision 2.2 2010/03/04 gschalk:
	Fixed nasty reinitialization bug. Now, pressing SetConfig more than once works. There is a remaining problem in the Biosemi2Client code that prevents proper function when initialize is called more than once. As a workaround, we now simply delete and recreate the whole object in the ADC's Initialize() function.		Fixed nasty reinitialization bug. Now, pressing SetConfig more than once works. There is a remaining problem in the Biosemi2Client code that prevents proper function when initialize is called more than once. As a workaround, we now simply delete and recreate the whole object in the ADC's Initialize() function.

Gschalk at 17:13, 4 March 2010

2010-03-04T17:13:57Z

← Older revision		Revision as of 17:13, 4 March 2010
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	==Synopsis==		==Synopsis==
	~~Beta~~ Version of the BIOSEMI acquisition module.		Working Version of the BIOSEMI acquisition module.

	===Known Issues===		===Known Issues===

	~~Pressing "Set Config" more than once per BCI2000 launch currently (svn revision 2190) results in unstable amp behaviour.~~

	When acquiring at SamplingRate less than the hardware sampling rate, crude averaging of the EEG and AIB signals is performed over each batch of samples: this is better anti-aliasing than the original simple decimation strategy, but still not ideal. Ideally a properly-designed FIR filter would be used prior to decimation.		When acquiring at SamplingRate less than the hardware sampling rate, crude averaging of the EEG and AIB signals is performed over each batch of samples: this is better anti-aliasing than the original simple decimation strategy, but still not ideal. Ideally a properly-designed FIR filter would be used prior to decimation.
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	==Versioning==		==Versioning==
	===Authors===		===Authors===
	Samuel A. Inverso (samuel.inverso@gmail.com), Yang Zhen, Maria Laura Blefari, Jeremy Hill		Samuel A. Inverso (samuel.inverso@gmail.com), Yang Zhen, Maria Laura Blefari, Jeremy Hill, Gerwin Schalk

	===Version History===		===Version History===
			Revision 2.2 2010/03/24 gschalk:
			Fixed nasty reinitialization bug. Now, pressing SetConfig more than once works. There is a remaining problem in the Biosemi2Client code that prevents proper function when initialize is called more than once. As a workaround, we now simply delete and recreate the whole object in the ADC's Initialize() function.

	Revision 2.1 2009/05/27 jhill:		Revision 2.1 2009/05/27 jhill:
	Bugged trigger signal acquisition fixed and tested. Also added an option to acquire trigger signals simultaneously in one 16-bit channel.		Bugged trigger signal acquisition fixed and tested. Also added an option to acquire trigger signals simultaneously in one 16-bit channel.

Jhill: /* TriggerChList */

2009-05-27T16:30:26Z

TriggerChList

← Older revision		Revision as of 16:30, 27 May 2009
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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. By default, all 16 are postfixed.		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 (for legacy compatibility).

			Instead of a list, you may alternatively supply a single 0: this means "acquire all triggers simultaneously in one 16-bit channel."

	==States==		==States==

Jhill: /* Source Code Revisions */

2009-05-27T16:27:58Z

Source Code Revisions

← Older revision		Revision as of 16:27, 27 May 2009
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	===Source Code Revisions===		===Source Code Revisions===
	*Initial development: 960		*Initial development: 960
	*Tested under: ~~2189~~		*Tested under: 2372
	*Known to compile under: ~~2189~~		*Known to compile under: 2372
	*Broken since: --		*Broken since: --

Jhill: /* Version History */

2009-05-27T16:26:50Z

Version History

← Older revision		Revision as of 16:26, 27 May 2009
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	===Version History===		===Version History===
			Revision 2.1 2009/05/27 jhill:
			Bugged trigger signal acquisition fixed and tested. Also added an option to acquire trigger signals simultaneously in one 16-bit channel.

	Revision 2.0 2008/11/07 jhill:		Revision 2.0 2008/11/07 jhill:

Jhill: /* Known Issues */

2009-05-27T16:02:51Z

Known Issues

← Older revision		Revision as of 16:02, 27 May 2009
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	Pressing "Set Config" more than once per BCI2000 launch currently (svn revision 2190) results in unstable amp behaviour.		Pressing "Set Config" more than once per BCI2000 launch currently (svn revision 2190) results in unstable amp behaviour.

	~~Trigger channel acquisition seems to be bugged (in all versions so far~~, ~~AFAICS). I've written a fix~~, but ~~am waiting to get access to~~ a ~~Biosemi system in order~~ to ~~test it (will visit Nijmegen again mid-May 2009) --jhill~~.		When acquiring at SamplingRate less than the hardware sampling rate, crude averaging of the EEG and AIB signals is performed over each batch of samples: this is better anti-aliasing than the original simple decimation strategy, but still not ideal. Ideally a properly-designed FIR filter would be used prior to decimation.

	==Location==		==Location==

Jhill at 08:41, 12 April 2009

2009-04-12T08:41:07Z

← Older revision		Revision as of 08:41, 12 April 2009
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	Pressing "Set Config" more than once per BCI2000 launch currently (svn revision 2190) results in unstable amp behaviour.		Pressing "Set Config" more than once per BCI2000 launch currently (svn revision 2190) results in unstable amp behaviour.

			Trigger channel acquisition seems to be bugged (in all versions so far, AFAICS). I've written a fix, but am waiting to get access to a Biosemi system in order to test it (will visit Nijmegen again mid-May 2009) --jhill.

	==Location==		==Location==

Jhill: /* Synopsis */

2008-11-08T13:55:35Z

Synopsis

← Older revision		Revision as of 13:55, 8 November 2008
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	==Synopsis==		==Synopsis==
	Beta Version of the BIOSEMI acquisition module.		Beta Version of the BIOSEMI acquisition module.

			===Known Issues===

			Pressing "Set Config" more than once per BCI2000 launch currently (svn revision 2190) results in unstable amp behaviour.

	==Location==		==Location==