Futher probs with my BU-303 install - Page 2

G-Han · 10-27-2004, 10:41 PM

hmm but my prob extends to even the GPS info utility

im wondering...
could it be coz im running it off USB 1.1

and it possibly needs USB 2 ports?

fishy · 10-28-2004, 01:02 AM

usb 1.1 should be fine, im running a bu-303 on an old laptop P2, and it only has usb 1.1, and it is fine. most usb 2.0 peripherals are backwards compatible anyways (unless they require the faster transfer rate).

if you're running it thru a usb hub, power can be a problem, it may not be supplying enough voltage/current to power the unit, which needs a slot, with full 3.3 or 5v and all available current too itself (i think usb uses around 500ma current, not 100% on that tho).

perhaps the unit or youir usb port is faulty?

akw · 10-28-2004, 01:24 AM

Quote: Originally Posted by G-Han

Hey guys thanks for the replies

What i have found is that if i uninstall and reinstall the device (ie. the usb to comp port). The device is found on both the info application and on destinator.

But if i leave it for say 10minutes
i start gettin "no device" and "gps not found"

though ive got a lock, coz my light is flashing away even though the 'gps is not found'

I believe the flashing light means that there is NO lock. Solid light indicates a satellite lock. Am I wrong on that?

fishy · 10-28-2004, 02:45 AM

yep, you're wrong, sorry.

a blinking/flashing light means the unit has booted, and is locked to satellites. a solid red light means the unit is either booting, or not locked.

l0gic · 10-28-2004, 03:47 AM

Quote: Originally Posted by fishy

if you're running it thru a usb hub, power can be a problem, it may not be supplying enough voltage/current to power the unit, which needs a slot, with full 3.3 or 5v and all available current too itself (i think usb uses around 500ma current, not 100% on that tho).

I beleive the usb spec is 500mA maximum per port supplied.
So you can run 1 500mA device or upto 5 100mA devices via a passive hub for example.

If you have a powered hub then the 500mA rating applies to each port again.

Out of interest, anyone know the power requirements for the BU-303?