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Posts: 10 | Thanked: 0 times | Joined on Jul 2007
#7
Originally Posted by namorvx View Post
Nokia 770's USB controller requires 5V at the connector to switch on, even in the usb-host mode. Isn't it the same with N800? I had to buy a special USB hub which provided the host port with 5V power.
A few questions...

One
Is that for real? Of all the things I've read, this is the first that mentioned the 770 needs 5v supplied to it's port for USB host mode to work.

Does this diagram also support my claim that the 770 does not need 5v for USB host mode to be active?


Two
The 770 puts out voltage for data only on USB pins 2 and 3?

Three
Can I use this Y-cable like so?
Plug one A end into a USB plug on a computer for power (it's going to be a car computer), plug the other A end into a A-male-to-A-female adapter with a device plugged into the A female plug, then the b mini into the Nokia?


Four
I have a PSP data plus charging cable. In addition, I have a PSP car charger. Based on the pics below, if I connect the car charger 5v out to the 5v out on the cable, do you think it'll work as 5 v on the A end?



Any tips would be very appreciated. Thanks!