On Thu, 10 Feb 2000, Yuhong wrote:
>I just want to buy a National Instruments AT-MIO-16E-10 DAQ card for the
>control of Robot, this card uses ISA bus, so you say I made a mistake to use
>this kind of cards? Is it better to use PCI devices?
The PCI cards which NI offers (eg PCI-MIO-16XE-10) will give better real
time system performance. Just acknowledging a single ISA device interrupt takes
around 17us on my 100MHz Pentium system, compared with 3us for a PCI device
interrupt. PCI bus throughput will be substantially higher than ISA. But the
guidelines I gave are for optimum real time performance, which you may not need.
The NI AT cards have the advantage that they are well supported with Linux
drivers. A good place for stuff like this is Claus Schroeter's Linux Lab
Project at obelix.chemie.fu-berlin.de.
John
--
John Storrs, Laboratory for Micro Enterprise
125 Culham 1 Site, Culham, Abingdon OX14 3DA, UK
tel/fax 01865 407085 email [EMAIL PROTECTED]
www http://www.i-way.co.uk/~storrs
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For more information on Real-Time Linux see:
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