On 7/24/08, Andy Green <[EMAIL PROTECTED]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > > Somebody in the thread at some point said: > | On 7/24/08, Thomas Seiler <[EMAIL PROTECTED]> wrote: > |> You would just need a 2x3 block or so: > |> VBAT VIO_3v3 (power these cannot pe but on FPC) > |> GND GND > |> I2C I2C (these are nice because a single connector for > |> most basic mods is sufficient) > | > | mindreader! > | Though I think VBAT is a bad idea. and > | The 3.3V supply should be switchable from the host. > > I think this whole testpoint and connector thing is definitively the > wrong direction. > > The USB host socket > > ~ - doesn't need you to open the case of Freerunner > ~ - provides 2.5W power for the external device > ~ - gives ~1MByte/sec bandwidth in one direction or the other > ~ - has many standard classes supported in kernel > ~ - does not need delicate cables > ~ - allows Y cable so incoming power and charge is possible too
Well, its two different things. There are lots of _small_ devices that attach to the I2C bus and would integrate well inside the enclosure. temp sensors and da/ad converters come to mind. attaching external usb devices is on an entirely different level. uwe _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
