[Gumstix-users] Gumstix beginner - need help for robostix serial connection

[Marc T. <mar...@vi...>]

Hi all.

I'm starting a project with a gumstix and a robostix.
I've got problems booting and connecting via the 'gumstix port' of th=
e=20
robostix.

I use the following components :
- 1 standard db9-db9 cable
- 1 ttl-to-rs232 converter (=20
http://www.hvwtech.com/products_view.asp?CatID=3D163&SubCatID=3D197&S=
ubSubCatID=3D198&ProductID=3D289=20
)
    configured as DCE

I launched kermit with the command described in the wiki :
set line /dev/ttyS0
set speed 115200
set carrier-watch off
set handshake none
set flow-control none
set reliable
fast
set prefixing all
set file type bin
connect

and I got nothing but a '=FF'


I tried differents wiring from the converter to the gumstix like :
+   -> +5
Txd -> Txd
Rxd -> Rxd
-   -> GND

+   -> +5
Txd -> Rxd
Rxd -> Txd
-   -> GND


and even changing the converter from DCE to DTE ...
and even jumpered *Atmel 0 Tx* to *PXA ST Rx* and *Atmel 0 Rx* to *PX=
A=20
ST Tx*


Did I do something wrong ?
Does that means my gumstix is dead ?

please help me :p
Marc