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PCI communication speed


Leo
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This could be possible. Can you describe your intentions in greater detail?

 

I want to built a 6-axis parallel robot with fast response.

I hope I can send position command from computer at the speed of 1 command /ms.

I chose the turbo PMAC2 PCI.

Is that ok or do I need a DPRAM option ?

 

If I choose the CLIPPER board. Is its communication speed ok?

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PMAC’s minimum move time is 1ms. Using a DPR binary rotary buffer PMAC will be able to accept commands this fast – on the PC side it should be possible. The basic requirement is that PMAC must receive a new command before the deceleration begins in the currently executing move otherwise it will come to a stop on that move and not blend into the next received move. This of course will require the DPR option. It will definitely be faster with a PCI bus version of PMAC but a Clipper may not be able to do this as the USB/Ethernet speeds may limit it. I may be able to run a test over USB/Ethernet.
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