BioSemi.nl

I can see two possible causes of the problem:
- size of ringbuffer (must be large enough to avoid overflow)
- arithmetics to calculate pointer offset in the ringbuffer

It'll be easier to discuss further possible problems if you'll give an example of your code (especially - place where you calculate ...

Thanks. information about number of buffered channels in Mk2 system clears things a little :) There still remain a lot of questions on 'daisy chained' mode (the real sequence of pin-channels, touchproofs and sensors from different boxes, the way the system will behave in case of only one box, but in ...

As I've received a number of questions concerning the С++ code, I'll try to answer them here....

The working (I hope) example of this code usage together with brief explanation can be found at
http://diz-vara.mail333.com/ActiveD.zip


READ_MULTIPLE_SWEEPS(m_hAct2,m_pBuf,BUFSIZE*4 ...

Hi, djw!

It seems to me it would be easier to locate an error in your code... There may be many courses...

First, I think that USB driver likes 'round numbers' (in binary sense): so, try to use something like
1024*1024*8 - for 32K buffer (but 8 Ksamples of long words)

Second advice will be to ...

Hi, djw.

It seems to me your are trying to use 'static link' with the DLL, but it's hardly possible withour the proper .Lib.

I would prefer to use 'dinamic loading'. Sorry, but following example will be in VC++


typedef HANDLE (*dOPEN_DRIVER_ASYNC)(void);
typedef unsigned char (*dUSB_WRITE ...