Clemens,
That last line looks right.
So have you tried ActiView with the MKII?
Paul
Search found 70 matches
- Mon Apr 19, 2010 3:47 pm
- Forum: BioSemi Software (ActiView executable)
- Topic: error 5000 on laptops
- Replies: 35
- Views: 43722
- Mon Apr 19, 2010 2:41 pm
- Forum: BioSemi Software (ActiView executable)
- Topic: error 5000 on laptops
- Replies: 35
- Views: 43722
- Mon Apr 19, 2010 12:28 pm
- Forum: BioSemi Software (ActiView executable)
- Topic: error 5000 on laptops
- Replies: 35
- Views: 43722
- Thu Mar 18, 2010 1:09 pm
- Forum: BioSemi Software (LabVIEW programming)
- Topic: Num. of buffered channels
- Replies: 29
- Views: 1105914
Maarcc, > I've followed your cues and taken the advise to adjust the programs. I did not use READ_Pointer and our > buffer size remain at 32MB and not exact multiples of 282. It's not clear that you took the advice ... You don't use READ_POINTER and your buffer size isn't a multiple of the lead set ...
- Thu Mar 11, 2010 8:59 pm
- Forum: BioSemi Software (LabVIEW programming)
- Topic: Num. of buffered channels
- Replies: 29
- Views: 1105914
maarcc, Further to what I wrote earlier, > - If the ring buffer size is a multiple of the lead set size (282*4 in this case), > you should overwrite the sync word for each lead set that you've processed with > a 0 or -1 so that you can tell that you are looking at a fresh sweep of the buffer > and n...
- Wed Mar 10, 2010 2:43 pm
- Forum: BioSemi Software (LabVIEW programming)
- Topic: Num. of buffered channels
- Replies: 29
- Views: 1105914
Maarcc, to your three points, > 1. > If the update is every 64 msec, that means, for a throughput rate of 1732608/sec, > 110886.912 bytes = 27721.728 long words = 98 blocks of 282 data, are already > available and waiting? Would this delay be a problem? It depends on your application ... With speed ...
- Sun Mar 07, 2010 8:34 pm
- Forum: BioSemi Software (LabVIEW programming)
- Topic: Num. of buffered channels
- Replies: 29
- Views: 1105914
These numbers look right for the beta Windows or Linux driver running with default settings. The ring buffer support in Labview_DLL doesn't track the kernel's insert point on a word-by-word basis. By default it goes for updates every 64 msec., after the first 3 updates. The first 3 updates are diffe...
- Wed Jan 27, 2010 2:31 pm
- Forum: BioSemi Software (LabVIEW programming)
- Topic: Num. of buffered channels
- Replies: 29
- Views: 1105914
Maarcc, You establish your ring buffer with the call to READ_MULTIPLE_SWEEPS. The ring buffer should be large. I think Actiview defaults to 32MB. The call to USB_WRITE with the 0xff then starts the acquisition. At this point both the insertion and extraction indices would be 0. The first word (4 byt...
- Fri Jan 22, 2010 1:15 pm
- Forum: BioSemi Software (LabVIEW programming)
- Topic: Num. of buffered channels
- Replies: 29
- Views: 1105914
[quote="Coen"]You can only read data from the ringbuffer, you cannot read "direct" (whatever that may mean). In other words: do it like it is done in ActiView. It's the only way to do it. Best regards, Coen (BioSemi)[/quote] To elaborate on what Coen is saying ... The ring buffer is the key element ...
- Thu Jan 21, 2010 10:20 pm
- Forum: BioSemi all other topics
- Topic: Other platforms
- Replies: 23
- Views: 95342
[quote="narsil"]I confirm that the drivers works on Ubuntu Karmic 9.10 64 bits machine. However the test program gives segfault when the device is not powered up with transfer_1 status 2 error. putting in debug mode fixes it though. EDIT: it seems that I cannot use the same code within another envir...