Moin, Some might remember that i talked a few times about crashes of my net5501 under heavy load or when using wlan. Eg when i switched wlan on and did generate some traffic it didn't take more than 5 minutes to crash the net5501.
I finaly got the time to work on this again and got my net5501 working without crashes even under heavy load and using wlan at full power. At least not within 24h. So, what is the problem? In order to save a couple of cents Soekris compromised on the power supply of the net5501 (the one on the board itself, not the wall plug), which leads to issues under certain load conditions. Those can vary from simple bit errors over lock up of single circuits to crashing the whole machine. The problem is actually that obious that you can see it on the soldered PCB if you think of looking for it. Had i checked the PCB when it first crossed my mind that there is something wrong with the power supply it would have saved me quite some trouble. I'm not surprised that net5501 crashes, anymore... but rather that it doesn't crash more often. Can it be fixed? Not really. It's a design issue. The only way to really fix it is to change the design and redo the boards. If you already own a net5501, the only thing you can do is, to patch it up until the crash probability reaches a level where you dont care anymore. And for this you need a soldering iron and some skill using it, as it means modifying a small pitch SMD PCB. Depending on how you use the net5501 this means anything from an hour of soldering to a full day or two of rework. Soren: Next time a customer tells you that he has problems with one of your devices, do not belittle him, do not tell him he doesn't know what he is doing and most importantly: do not ignore him! In the very least, there is a problem with his setup and you could make him a happy customer if you'd help him. In the worst case, the customer might be on some reall issue and might be able to tell you how to reproduce it. Attila Kinali -- Why does it take years to find the answers to the questions one should have asked long ago? _______________________________________________ Soekris-tech mailing list Soekris-tech@lists.soekris.com http://lists.soekris.com/mailman/listinfo/soekris-tech