How to connect serial and TTL converter and The usb-boot pin

Xiangfu Liu xiangfu at qi-hardware.com
Thu Aug 6 22:06:59 EDT 2009


Hi

ZhangJieJing wrote:

> > Hi everyone,
> >
> > I just got a factor machine , I'm  settling up the serial, I can find
> > the pin number of the board via this [1] but I'm still have some
> > question about how to setup the serial, I have two question:
> >
> > 1, which pin should I connect the TTL and the RXD, TXD, GND ? Is there
> > have and Picture or something else can be guide?
>   
this need a Serial header,

RXD -- 2
TXD -- 3
GND -- 5

here is a picture:
http://www.openmobilefree.net/wp-content/uploads/2009/08/P8071558.JPG

> >
> > 2, I saw the [1] also have to cable named "boot from usb", what these
> > cable for?
>   
just for easy to short :-)

> >
> > [1] http://www.openmobilefree.net/?p=61
> >
> > Thanks in advance.
> > ---
> > Best regards,
> > Zhang Jiejing
> > ------------------------------------------------------------------------
> >
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>   




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