Hello Grant, On Monday 11 January 2010 21:19:14 Grant Likely wrote:
> I'm really not convinced. At least you made me think about that some more. And of course, you are right, the order must be fixed, one way using TX, the other way using RX. I think delayed BCOM IRQs in TX direction, caused by a high FEC or ATA BCOM load, could cause starting the next job with a not yet cleand up BD ring. Please give me another change to come up with a hopefully much cleaner design, esp. after some tests under low and high load with alternating transfer directions. Probably we can stay with the original design, and only take some extra effort when the transfer directions changes. Roman -- Roman Fietze Telemotive AG Büro Mühlhausen Breitwiesen 73347 Mühlhausen Tel.: +49(0)7335/18493-45 http://www.telemotive.de Amtsgericht Ulm HRB 541321 Vorstand: Peter Kersten, Markus Fischer, Franz Diller, Markus Stolz
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