Vu D
2007-01-26 17:40:15 UTC
Hello David,
You are correct that both firewire
cameras are sharing the card?s resources.
You will need to see what bandwidth your firewire board can handle. Our IEEE 1394 interface (<a href="http://sine.ni.com/nips/cds/view/p/lang/en/nid/13176" target="_blank">PCI-8252</a>) can handle up to 400 Mb/s of data transfer.
Depending on the combined bandwidth of your cameras, you are probably exceeding
this limit. Daniel has posted a possible
work around <a href="http://forums.ni.com/ni/board/message?board.id=200&message.id=3574&requireLogin=False" target="_blank">here</a> regarding packet size. If you are looking into purchasing a second
firewire card, you will probably also need to check if you are limited by the
PCI bus rate which is roughly 528MB/s. I
hope this helps.
Vu D
You are correct that both firewire
cameras are sharing the card?s resources.
You will need to see what bandwidth your firewire board can handle. Our IEEE 1394 interface (<a href="http://sine.ni.com/nips/cds/view/p/lang/en/nid/13176" target="_blank">PCI-8252</a>) can handle up to 400 Mb/s of data transfer.
Depending on the combined bandwidth of your cameras, you are probably exceeding
this limit. Daniel has posted a possible
work around <a href="http://forums.ni.com/ni/board/message?board.id=200&message.id=3574&requireLogin=False" target="_blank">here</a> regarding packet size. If you are looking into purchasing a second
firewire card, you will probably also need to check if you are limited by the
PCI bus rate which is roughly 528MB/s. I
hope this helps.
Vu D