Maximum scan rate & external reference for AO

Hi,

I am adapting a software for neuronal recordings to comedi in order to 
obtain universal support for any kind of DAQ board.
There are two open questions to me:

1. Is there any possibility within comedilib to get the maximum 
scan/sampling rate supported by a board for asynchronous analog 
acquisition ?

2. For my NI-E card, external reference for analog output is supported 
by comedi via the actually not existing range indices 3 & 4.
Is this the general strategy for all comedi-drivers to support external 
reference?
Can I somehow find out generically which output ranges are reserved by 
the current driver for external reference?

Thanks in advance for your help!

Greets,
Marco

Received on 2007-06-13Z09:23:54