From: Lawrence H. <gumstix@HariTech.com> - 2007-12-11 08:11:56
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Oddly enough I was just reading this paper on level shifting an I2C bus and it would probably work for the USART ports as well. There may be considerations of maximum speed so your mileage may very as they say. http://wwwasic.kip.uni-heidelberg.de/lhcb/Publications/external/AN97055.pdf Lawrence Bernard MONDAN wrote: > Have a look here : > http://www.fairchildsemi.com/sitesearch/fsc.jsp?command=text&attr1=translator&attr2=&t=0&i=sitemap+id&ia=1&text=translator&as=1&render=1&w= > <http://www.fairchildsemi.com/sitesearch/fsc.jsp?command=text&attr1=translator&attr2=&t=0&i=sitemap+id&ia=1&text=translator&as=1&render=1&w=> > This is Fairchild translator. > > 2007/12/11, pvm <pvm...@gm... <mailto:pvm...@gm...>>: > > > Any suggestions for some sort of 1bit buffer or circuity that will > take a > 5-6v signal and output a corresponding 3.3v signal compatible with the > gumstix serial port? > > I have a serial interfaced device that I want to use with the > BTUART on the > Verdex. The device tolerates the 3.3v output of the Gumstix ok > but the > device itself has an logic high of 5v. I suspect the gumstix > doesn't like > this because it can send to the device but doesn't receive. > > Thanks, > -Pete > -- > View this message in context: > http://www.nabble.com/Max-serial-voltage-level--tp14266249p14266249.html > > Sent from the Gumstix mailing list archive at Nabble.com > <http://Nabble.com>. > > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://sourceforge.net/services/buy/index.php > <http://sourceforge.net/services/buy/index.php> > _______________________________________________ > gumstix-users mailing list > gum...@li... > <mailto:gum...@li...> > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://sourceforge.net/services/buy/index.php > ------------------------------------------------------------------------ > > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |