Re: [uCsimm] Pinouts for serial cable & Orientation of Red Tantal um

From: Phil Wilshire (philw@lineo.com)
Date: Mon Jul 30 2001 - 11:57:51 EDT


Ryan
It look like you are counting the pins from the wrong end.

  Phil ;-))
>
> Reading the message below, I would have expected pins 2,3 and 5 to be the
> serial port pins on my uCgardener. All of my serial cables are wired as
> 2,3,5.
>
> However, I am having to use pins 1, 3 and 4 (1 is GND).
>
> Can someone explain this? The only explanation I could come up with is that
> I installed the 9 way male connector on the wrong side of the board, but I
> installed it on the "top", just like it is in the photos shown in the
> uClinux handbook!
>
> It isn't a problem now that I know, but it took me a while to figure it out
> - I thought that I had a dead module. Instead, I now have a "special"
> uCgardener serial cable.
>
> As for the orientation of that red tantalum... I have serious words about
> that.... the writing on the cap DOES NOT FACE THE CENTER OF THE PCB. It
> faces the DB9; away from the uCsimm socket; away from the center of the pcb,
> in my opinion. It neither faces the RJ45 nor vice versa because it is
> perpendicular to it. Luckily I have a hardware engineer to hand or I could
> have been in trouble.
>
> Lineo, please update the documentation that comes with the uCgardener!!!!
>
> On an happy note, thanks to the help I have been given here, I have my
> uCsimm & gardener up and running. The packages are all installed on my PC
> and I am now the proud user of uClinux on a real embedded target.
>
> Cheers,
> Ryan.
>
> >Are you using the uCgardener?
> >DB9 pin 2 is RSTXD and pin 3 is RSTXD. pin 5 is GND
> >Which allows a straight through DB9 --- DB9 cable to connect to the Serial
> >Port on a Linux PC (is there another kind?).
> >
> >
>
> >> -----Original Message-----
> >> From: Terry Carlin [SMTP:carlintg@bellatlantic.net]
> >> Sent: Friday, May 12, 2000 12:41 PM
> >> To: ucsimm@uClinux.com
> >> Subject: [uCsimm] Pinouts for serial cable
> >>
> >> Looking for the pinouts to hook up the uCsimm to a linux serial port. db9
>
> >> to db9.
> >>
> >> Thanks
> >>
> >> Terry Carlin
>
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-- 
Phil Wilshire
Wizard Trainer  -- Lineo Inc. -- Where Open Meets Smart
Tel: (703) 863-0715
This message resent by the ucsimm@uclinux.com list server http://www.uClinux.com/



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