Dear Joan, the main cause for FoxBoard not powering up every time is from not very well stabilised power supply. Onboard the Fox there are two reset supervisor who monitor continuously the power supply and if it lowers under a certain value (for more than 4 microseconds) the Fox will be held in reset for 140 milliseconds more than the pulse duration. This guarantees the Fox can operate safely. Hence a Fox that doesn't start well is normally due to not very well power supply.
A very good and sabilised +5V power supply is therefore needed for the Fox to work well. From your words it could be that you are powering the Fox through long lines. If this is the case (you mention the Fox is connected through 35 mt of LAN cable) try to filter the +5V near the Fox with a LC filter to avoid the possible noise gathered from the power lines during the travel to the Fox. In general try to power the Fox with another good power supply with short cables when the problem happens and see if there are differences. Best regards, Roberto Asquini Joan Moratinos Jaume ha scritto: > > My FoxBoard normally starts when powered on. There are two programs > that start automatically without problem. Then, sometimes the board > doesn't start, even switching the power on and off. Some time ago, it > didn't work for a long period, and then started to work properly > again. > > The FoxBoard is powered with a PC power supply and connected to a LAN > (35 meters). I never change the firmware and, as it often works OK, I > think it cannot be blamed for the problem. > > -- > Joan Moratinos > [EMAIL PROTECTED] <mailto:jmoratinos%40gmail.com> > > > > __________ Informazione NOD32 2335 (20070616) __________ > > Questo messaggio รจ stato controllato dal Sistema Antivirus NOD32 > http://www.nod32.it -- Roberto Asquini Acme Systems srl [EMAIL PROTECTED] http://www.acmesystems.it
