Handshaking using NI-6508 using DAQmx Base on Mac G4 Mac with OSX

[Jennifer O]

Hi macmemo,
 
Handshaking is a feature which is built into the DAQmx and Traditional DAQ drivers.&nbsp; Unfortunately it is not supported by DAQmx Base.&nbsp; If you are communicating at slower rates you may be able to code a handshaking algorithm in your software by polling a particular line. See <a href="http://zone.ni.com/devzone/cda/tut/p/id/4404" target="_blank">Digital I/O Applications</a> for information on different types of handshaking protocols.
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Hopefully this helps,
&nbsp;
Jennifer O.
Applications EngineerNational Instruments

[macmemo]

Jennifer,
Thanks for&nbsp; your response.&nbsp; I'm trying to transfer data at @ 500k bytes per second.&nbsp; My software handshaking algorithm is too slow. What other/newer&nbsp;NI DAQ board would&nbsp; you suggest?
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I would like to use a Mac G5 if there is a board that will work in the G5.&nbsp;&nbsp;Is there a board that supports DMA transfers at&nbsp;the 500k bytes/s or faster?&nbsp;&nbsp;&nbsp;
&nbsp;
macmemo

[macmemo]

So Jennifer,
NI doesn't offer any digital I/O board that will work on a G5 using Mac OSX??&nbsp;&nbsp;
&nbsp;
Macmemo

[Jennifer O]

Macmemo,
&nbsp;
National Instruments offers the NI 6508 with DAQmx Base driver for OSX.&nbsp; You may wish to use another card and program it with DDK, since DAQmx Base (the OSX driver) does not support the handshaking feature.&nbsp; For a list of cards which can be programmed with DDK, please read the <a href="http://digital.ni.com/public.nsf/websearch/2D93070A3DDEFD7186256C59007289E6?OpenDocument" target="_blank">DDK FAQ</a>.
&nbsp;
Jennifer O.
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