Re: [Gumstix-users] Serial Ports on the Gumstix

[Miguel P. <mig...@gm...>]

Thanks again Dave

The tweener only has the console. But the chip on the tweener board
> has level converters for another pair of lines, so you could solder on
> some wires (requires good soldering skills and a good soldering iron).


Definetly, not going to happend :). My soldering skills are limited to 1cms
minimun.


Do you have any more information on the device in question? If you can
> connect it directly to a PC, then the same interface CAN'T be used to
> go directly to the robostix.


According to the specs, It=B4s TTL with 0-5v . With 5v for the logical 1.
With this servo-controller it=B4s not posible to connect direct to the
Computer (rs232). It=B4s connected to a Basic Stamp and that Basic Stamp is
connect to the PC. So I guess the Basic has some level-shifting.

The robostix brings out the FFUART (ttyS0) and STUART (ttyS2) pins as
> logic-level pins. These go through 5v to 3.3v voltage converters and
> then directly to the gumstix.


I saw that ttyS2 on the robostix I/O. So, I guess that would had to be my
choice,  I mean, if my device is TTL, then if I connect it to the ttyS2,
then I=B4ll be able to read,write trough the /dev/ttyS2 on the gumstix .
right?. To do that, I=B4ll have to load the robostix module?? Or just need
that module to actually interact the the GPIOS, ADC, and PWM?


--=20
Miguel Pincheira Caro
Ingenier=EDa (E) Computaci=F3n e Inform=E1tica
Universidad del B=EDo-B=EDo
Chill=E1n
Chile