bci2000.org BBS

Thank you very much.

I will try to synchronize hardware first.

Currently, I am using BCI2000 software for neural recording data acquisition. The data come from USB cable. Is it possible to run two different BCI2000 softwares in one computer by connecting two USB calbes from two different hardwares. I can easily use two computers for two hardwares. However, in t...

So the result is that it runs for some time, and then goes into suspended state? Does it always record the same amount of data, or a different amount each time? Which Signal Processing and Application modules are you using? Yes, it always record the same amount of data. However, interestingly the am...

Thank you very much for your suggestion. I did not understand your assumption fully yet, but it seems very reasonable. I deleted postBuf because it is not necessary for this version, and tried your suggested code, buf=(BYTE *) malloc (sizeof(int) * alen); instead of buf=(BYTE *) malloc (sizeof(BYTE)...

Thank you very much. After some period of time, recording automatically finishes without any specific error. 'Suspend' changes automatically to 'Resume' and recording stops. For BCI2000 viewer, the error message is 'External exception EEFFACE.'. I attached my data acquisition module important code. ...

Previously, I have a difficulty in increasing recording time on my system. The hardware we designed has a sampling rate of 540 k sample per second (540 kSps) consisting of 36 channels. Therefore, each channel has a sampling rate of 15 kSps. When I press 'Start' button in operate module in order to r...

I could not find DummyApplication Module.
Where can I get this module?

Thank you.

I am working on developing neural recording system. The hardware we designed has a sampling rate of 540 k sample per second (540 kSps) consisting of 36 channels. Therefore, each channel has a sampling rate of 15 kSps. I made a source module in order to accept the data from our hardware. It works fin...

It works! Thank you very much. How did you come up with the specific numbers, 512 and 64? By the way, the hardware I am using is the custom designed receiver. Through wireless link, neural signals are received, demodulated, and send to FPGA board. FPGA converts the demodulated analog data to digital...

Thank you for reply,

SourceCh: 36
SamplingRate: 14799 Hz
SampleBlockSize: 64

VisualizeSourceDecimation: 1

I am not sure how much accurately SamplingRate should be set comparing to real sampling rate. Is it possible to make data loss if two values are different?

Thank you very much.

I am working on developing neural recording system. The hardware we designed has a sampling rate of 540 k sample per second (540 kSps) consisting of 32 channels. Therefore, each channel has a sampling rate of 15 kSps. I made a source module in order to accept the data from our hardware. It works fin...