Difference between revisions of "Contributions:gHIamp"

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m (Parameters)
m (Added Valid Operating Modes)
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* '''NotchType'''
 
* '''NotchType'''
 
* '''SourceBufferSize'''
 
* '''SourceBufferSize'''
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===Valid Operating Modes===
 +
The gHIamp only accepts specific combinations of sampling rates and sample block sizes.  The following table shows all valid combinations of sample rate and block size.  Operating outside of these modes is untested and could result in problems.
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{|
 +
!Sample Rate
 +
!Valid Sample Block Sizes
 +
|-
 +
|256 Samples per second
 +
|1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 64 128 256
 +
|-
 +
|512 Samples per second
 +
|2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 64 128 256
 +
|-
 +
|600 Samples per second
 +
|4 5 6 7 8 9 10 11 12 13 15 16 17 32 64 128 256
 +
|-
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|1200 Samples per second
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|8 9 10 11 12 13 14 15 16 32 64 128 256
 +
|-
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|2400 Samples per second
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|16 32 64 128 256
 +
|-
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|4800 Samples per second
 +
|32 64 128 256
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|}
  
 
==See also==
 
==See also==

Revision as of 17:20, 24 February 2012

Synopsis

The g.HIamp is a 256 channel amplifier from g.tec. The contributed source module acquires raw signals from the amplifier in real time for use in BCI2000.

Location

http://www.bci2000.org/svn/trunk/src/contrib/SignalSource/gHIampSource

Versioning

Authors

Griffin Milsap (griffin.milsap@gmail.com) Rensselaer Polytechnic Institute

Version History

Version 0.9: August 2011

  • Supports one g.HIamp
  • Supports Filters
  • Referencing by any channel
  • Future compatible with g.HIamp master/slave configurations
  • Using g.HIamp C API version 1.11.02

Source Code Revisions

  • Initial development: 3472
  • Tested under: 3763
  • Known to compile under: 3798
  • Broken since: --

Functional Description

Acquires raw data from the g.HIamp.

Installation

Compile the gHIampSource module using CMake and your compiler. The resulting gHIampSource.exe should be placed in the prog directory automatically.

Parameters

  • SourceCh represents the total number of channels to be logged from the source module.
  • SampleBlockSize should be set equal to the size of the sample block pulled from the device.
  • SampleRate
  • ChannelNames
  • SourceChOffset
  • SourceChGain
  • DeviceIDMaster
  • DeviceIDs
  • RefChList
  • SourceChList
  • FilterEnabled
  • FilterHighPass
  • FilterLowPass
  • FilterModelOrder
  • FilterType
  • NotchEnabled
  • NotchHighPass
  • NotchLowPass
  • NotchModelOrder
  • NotchType
  • SourceBufferSize

Valid Operating Modes

The gHIamp only accepts specific combinations of sampling rates and sample block sizes. The following table shows all valid combinations of sample rate and block size. Operating outside of these modes is untested and could result in problems.

Sample Rate Valid Sample Block Sizes
256 Samples per second 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 64 128 256
512 Samples per second 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 64 128 256
600 Samples per second 4 5 6 7 8 9 10 11 12 13 15 16 17 32 64 128 256
1200 Samples per second 8 9 10 11 12 13 14 15 16 32 64 128 256
2400 Samples per second 16 32 64 128 256
4800 Samples per second 32 64 128 256

See also

User Reference:Filters, Contributions:ADCs