Point Grey Research Knowledge Base

Article 244 - Some 1394b network configurations cause bus resets and image acquisition problems.

Issue:
Some 1394b network configurations cause bus resets and image acquisition problems.

Solution:

Any multi-node IEEE-1394b configurations connected to a 1394b OHCI Host Adapter card that uses the Texas Instruments TSB81BA3 chipset may encounter some of the following problems:

  1. A bus reset may occur in certain topologies when 1394b BOSS arbitration is in use
  2. In 1394b systems with more than four cable hops, unwanted bus resets may occur

For a full description of some of the known issues with the TSB81BA3 chipset, consult the TSB81BA3 Errata (Rev C).

The later version of this chipset, the TSB81BA3D, corrects most of these problems, and replaces the TSB81BA3 chipset used in applicable Point Grey products. 

Related Articles:
1.) Performance of 1394 devices may decrease after installing Windows Vista or Windows XP SP2 or SP3
2.) Image data is corrupt and images being displayed are broken or torn.
3.) Image tearing and corruption on host systems with multi-core Intel® processors.
4.) Determining revision of Texas Instruments PHY chip
5.) Connecting 16 Point Grey FireWire cameras to a laptop / notebook computer.
6.) Bus resets using some Flea2 cameras with long FireWire cables.
7.) My camera achieves S800 speed when connected to the S400 port on a 1394b PCI host adapter card.

Related Links:
1.)  http://focus.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=sllz015c&fileType=pdf
Errata outlining some of the issues with the TI TSB81BA3 1394b chipset.


Article ID:
244
Published:
7/6/2006 11:07:13 AM
Last Modified:
7/25/2007 3:10:35 PM
Keywords:
BOSS, arbitration, chipset, TI, bus, reset, TSB81BA3, TSB81BA3D, Texas Instruments, PHY, link, physical layer, tranceiver
Issue Type:
Error

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