Mac OS 10.11.6, choppy data stream flow
ali1632
barcelona
I'm hoping someone has seen this before.
I built my own Mark III for use with the Cyton board, and I had it up and running with OpenBCI_GUI for over a week, with consistent results. But now when I connect it, the stream is choppy, with the bit rate (bps displayed in the app header) dropping to zero for about half of each second. The time plot stops and starts with each drop, so the plot looks consistent, but doesn't advance when the stream drops out. (So, there are no visual gaps in the line.) I was initially getting good results at 60fps, but no longer. At 30fps, it "looks" a little less jumpy but I can see the signal still dropping out - it's just spreading the data out over each cycle a bit more smoothly.
A friend of mine suggested that this could be a synchronization issue with the USB port or the radio...(???) I am a beginner with such things and don't know how to troubleshoot this.
I'm using mac OS 10.11.6 on a 2016 macbook pro, with v2.2.1 of OpenBCI_GUI, and the latest FTDI drivers for 64bit mac os.
We tried installing on another mac (10.12) and had the same result. We also tried manually changing the channel settings. No change.
Also, the v2.2.1 download still displays version 1(1) inside the app's "about" detail.
Thanks to anyone who can lend some help.
-Alicia
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