Date: Tue, 19 Dec 2006 21:19:56 -0800 (PST) From: neha_makhija <neha.makhija@honeywell.com> To: freebsd-arm@freebsd.org Subject: Re: Application not working when Power OFF/ON is done while on reset its working Message-ID: <7984946.post@talk.nabble.com> In-Reply-To: <20061219.093117.43007816.imp@bsdimp.com> References: <7943626.post@talk.nabble.com> <20061219.091449.1973603691.imp@bsdimp.com> <20061219.093117.43007816.imp@bsdimp.com>
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M. Warner Losh wrote: > > In message: <20061219.091449.1973603691.imp@bsdimp.com> > "M. Warner Losh" <imp@bsdimp.com> writes: > : In message: <7943626.post@talk.nabble.com> > : neha_makhija <neha.makhija@honeywell.com> writes: > : : I am working on AT91RM9200 development board with ecos ported over it. > I > : : have burnt the flash with the redboot image. When i turn off the board > and > : : then turn it ON then the code doesnt work and doesnt show anything on > the > : : hyperterminal. But if i reset the board then the code is working fine. > : > : I'm guessing something is wrong with the power up sequence such that > : the boot flash isn't quite right by the time the AT91RM9200 starts its > : boot sequence. > >>>>> How can i check the power up sequence. > > In my experience, however, I've seen weird things when not the entire > flash is burned. I've never used redboot because I didn't want the > hassles of GPL'd software on the embedded project I was working on (I > hate keeping track of all the tarballs, and the company doesn't want > the hassles). > > I'd make sure that the redboot image was good for this board. Maybe > it is waiting for some other part that is marginal and needs a second > reset to work. Maybe it is compiled for a different PHY, so the > initial reset sequence doesn't quite work. Maybe you have a hardware > problem in the components that the boot code touches. We had a mixup > on the magnetics of our ethernet port that caused odd behavior during > the early stages of bringing up our board. >>>>> But if I am switching ON/OFF multiple times still its not working. It >>>>> doesnt matter for teh board how many times i reset it and everytime i >>>>> am able to ping. > Different PHY is not the case because that part is checked properly and it > is taking teh right PHY. > > any other reason can u suggest. > Warner > _______________________________________________ > freebsd-arm@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org" > > -- View this message in context: http://www.nabble.com/Application-not-working-when-Power-OFF-ON-is-done-while-on-reset-its-working-tf2844769.html#a7984946 Sent from the freebsd-arm mailing list archive at Nabble.com.
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