On Fri, Aug 19, 2011 at 05:10:45PM +0100, Phil Endecott wrote: > lsore...@csclub.uwaterloo.ca wrote: > >On Fri, Aug 19, 2011 at 04:17:22PM +0100, Phil Endecott wrote: > >>Right, that's the doc that I couldn't find a minute ago. > > > >Section 5.14: > >http://cache.freescale.com/files/32bit/doc/user_guide/IMX53QSBRM.pdf > > Right. > > >The pull up is only there BECAUSE the dip switch isn't. If the dipswitch > >was there it wouldn't be needed since the dip switch takes care of it all. > > Are you sure? The way I read that page, you have to do (1) AND (2), > i.e. fit the DIP switch AND move R46. Are you suggesting that it's > an OR, and that the resistor doesn't need to be moved if the switch > is fitted?
No my reading is that you are moving R46 so that you use the dipswitch instead of the fixed pullup. To make the dip switch work you have to move the "hard coded" resistor. I see no mention of moving resistors when setting different settings on the dip switch (which would be silly after all), so if the dip switch had been preinstalled and the resister pre configured for dip switch use, then life would have been much much simpler. Of course if the thing could be made easily to power up when power was applied some people would also find life much simpler, but the current version can't without some hacking being done. -- Len Sorensen -- To UNSUBSCRIBE, email to debian-arm-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110819161540.gk15...@caffeine.csclub.uwaterloo.ca
