Re: Problems with Texas Instruments TSB82AA2 chipset and cameras on both new and old stacks
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From: Joan P. <jo...@gm...> - 2010-11-16 09:52:12
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Thankyou for the quick response. I hope tomorrow I will be able to send the errors log in both the new and the old stack. I don't know if I am going to be able to plug and unplug the camera since the factory may send the robot closed and locked. The problem is that the camera does not get connected (I think), but I can not interpret the errors in kern.log. 2010/11/15 Stefan Richter <st...@s5...> > There is a TSB81BA3 physical layer chip on that card. This is an early > 1394b device with a long list of serious hardware errata (TI literature > SLLZ015C). Hardly any of them can be worked around in software. Most > of these errata affect 1394b mode only though, i.e. not 1394a cameras > such as yours. However, one or another hardware workaround for 1394b > issues may in turn cause cause problems in 1394a mode. > > One of the errata is actually a documentation erratum that caused board > designers to provide for insufficient cooling of TSB81BA3. But I would > expect this to become a problem only after some use. Problems due to > overheating PHYs have indeed be ported here on this list a few years > ago. > Oh, we didn't know that. This card had worked without problems for quite a lot of time with a 1394a camera in another underwater robot (bigger than the one where it is being installed now, cooling matters!) . Since we need to buy another PCI firewirecard (there are two robots), is there any hardware compatibility list up-to-date? Because the snapshot linked in the wiki seems a bit old (the TSB82AA2 is said to "work great" but it seems that it is not the case now). We would not expect to find a PC104 firewire card in there, since they are not very common in use, but at least we could compare the chipsets that come into the cards from several vendors and choose one already tested and working. -- Joan Pau Beltran |