Re: [Gumstix-users] I just killed my twener :(

[Jason C. <j_...@sw...>]

Dave,
	Yes its a usb powered converter. 
I ahve tested he usb serial apter with a GPS and all seems to work.I
just dont  seem to be able to get the conole to echo back:(
the pl2303 will show the console but dosn't seem to send daa to it.
Jason


On Wed, 2007-07-04 at 16:23 -0700, Dave Hylands wrote:
> Hi Jason,
> 
> >        I have a R1131 robostix and the problem is that it boots,but I dont
> > seam to be able to log into the  gumstix once the login prompt appears.
> > I am running a usb 5v rs232 converter using just 3 wirers to the console
> > port. I havent connect up the +5v from the converter to the gumstix as i
> > thought i wouldn't need to. Adding in the 10K pull up just seem to lock
> > it up ( also tried 15K, but it made no diff ).
> >
> > The tweener is compleatly out unless there is 3.3v on the conector to
> > try and power up the rs232 ( last resort as I don't know the condition
> > of the  converter ).
> 
> The rs232 converter needs to get its power from somewhere.
> 
> If it's one of the USB-to-logic-level serial varities then they
> normally power themselves from the USB bus. RS232-to-logic-level
> convertes typically need to get their power from some other source
> (like the V_BATT pin on the 4-pin GUMSTIX connector).
>