Re: tweener board to robostix issues

Thanks for getting back so quickly. I am only using the robostix and an
STK500 to program it. (I don't even have a gumstix board) I've mounted the
'tweener' board on the robostix board and then connected the tweener to the
output. I've downloaded Flash-LED.hex to the robostix, I know it is running
because the LEDs are flashing. However when I try to read the outputs from
the UART0 I get garbage. I would like to use the tweener board for I/O from
the keyboard, but I cannot. Also, my robostix and tweener looks very
different from the one in the link. Thanks again!
~Shane

-----Original Message-----
From: gumstix-users-bounces@...
[mailto:gumstix-users-bounces@...] On Behalf Of Dave
Hylands
Sent: Tuesday, May 20, 2008 1:42 PM
To: General mailing list for gumstix users.
Subject: Re: [Gumstix-users] tweener board to robostix issues

Hi Shane,

>  Now I am trying to use the Flash-LED program and get UART out on the
>  tweener board. I made the correct modifications to the tweener board
>  and plugged it in. It's not outputting anything. I changed the uart
>  from u0 to u1 in the code and back there was no change. Does anyone
>  have any ideas of how I can get the tweener board to work with
>  Flash-LED.c?

The tweener board exposes the console of the gumstix (FFUART).

By default UART-0 and UART-1 on the robostix aren't connected to
anything on the gumstix. You can hook up a logic-level to RS-232
adapter and see the output on your host machine.

You can connect them to the STUART port, and then write a program
which runs on the gumstix and reads the STUART port and prints the
output to the console. sertest is a program which can do this.

You can connect UART-0 to STUART by using two jumpers as shown on this page:
<http://docswiki.gumstix.com/Robostix_gumstix_ISP>

--
Dave Hylands
Vancouver, BC, Canada
http://www.DaveHylands.com/

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