maybe cdc serial using uart could help, theres some usb-serial devices that have i2c and spi inside but no one put this feature at linux/windows driver
2011/9/19 Jan Kandziora <j...@gmx.de> > Am Montag, 19. September 2011, 00:13:22 schrieb p4trykx: > > Dnia 18-09-2011 o 23:07:50 Pascal Baerten <pascal.baer...@gmail.com> > > > > napisał(a): > > > I've put the Eagle files and some pictures of the 16 bus master and hub > > > here: > > > > http://www.brain4home.eu/index.php?option=com_content&view=article&id=48: > > > 16-chanel-board-and-hub > > > > How do you interface with a computer? ds2482-800 uses i2c. Do you connect > > it directly do mainboard or do You use some i2c<->usb or i2c<->serial > > converters? > > > Any modern PC has I²C on the VGA/DVI outputs for DDC. You can hook up othe > devices to the bus there. > > http://en.wikipedia.org/wiki/VGA_connector > http://en.wikipedia.org/wiki/Digital_Visual_Interface#Connector > > If you like to tap it internally, take it from the pins of the graphics > card. > As an alternative, there is a second I²C on the RAM sockets. > > http://pinouts.ru/Memory/dimm_ddr2_pinout.shtml > > > > I was wondering if there's an easy way to connect ds2482-800 to > > Asus-WL500W(router running OpenWrt) via usb or serial. > > > These routers often have an I²C somewhere on their board, too. > > > > I saw some > > i2c-tiny-usb converter and it seems to work with OpenWrt. I cound,nt find > > any i2c<->uart converters. > > > You could easily build such a thing using an PIC or AVR µC. E.g. even the > smaller AVRs have an internal UART for RS232. The I²C interface could be > build > up using bitbanging. The biggest problem of such a solution is speed, as > RS232 > is slow against I²C. For USB, the problem is programming the controller, as > USB has a complicated protocol. > > Kind regards > > Jan > > > ------------------------------------------------------------------------------ > BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA > Learn about the latest advances in developing for the > BlackBerry® mobile platform with sessions, labs & more. > See new tools and technologies. Register for BlackBerry® DevCon today! > http://p.sf.net/sfu/rim-devcon-copy1 > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers > -- Roberto Spadim Spadim Technology / SPAEmpresarial
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