Am Di 11. März 2008 schrieb Andy Green: > - gpg control packet > Somebody in the thread at some point said: > > > No, I was just noting you could put the CPU peripheral logic into host > > mode but leave the EN_USBHOST signal low. Then you could add 15K > > pulldowns as a hack, and it would all work. But it is a bit of a mess > > and would then only work in this externally powered host mode. > > Ha, actually that's not true, I just enabled EN_USBHOST, which does > nothing about the CPU peripehral mode for USB right now -- but it does > enable the 15K pulldowns -- and the thing still works as an Ethernet > class device including insertion detection on the remote host. > > So if you added a pair of 15K pulldowns to D- and D+ yourself (there are > testpoints), and took care to not enable EN_USBHOST but have the CPU > peripheral in host mode, you should be good to go as an externally > powered host, including charging, and the same setup can work on at > least some hosts as a device, despite we pull down by 7.5K when the host > pulldowns get in on the game as well.
Ah, i see a Y-adapter: one end usb-device, one end receptable for usb charger, one end GTA02 *with ID-R of e.g 82k* PLUS *2 x 15k pulldown*. And GTA02 automatically switching to external powered host mode. :-) This was on the list of accessories from the beginning, wasn't it? ;-) humm, on 2nd thought, nothing bad will happen when this mode will check for 47k instead of 82k. What's about this? j _______________________________________________ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community