On Mon, Mar 17, 2008 at 1:21 PM, smerry <sebmerry@...> wrote:
> Hi all,
> I have found that the gumstix is a DTE device, but does anyone know what the
> robostix is?
Well, the TxD is an output from the robostix, and RxD is an input, so
that would make the robostix a DTE device. This is true of almost all
devices which have logic-level interfaces.
> I am asking because I have a DCE device (XBee Pro - Zigbee module) that I
> have attached directly to the UART on my robostix.
Actually, I would disagree with you. The XBee Pro manual shows a UART
Data Out as an output (from the module) and UART Data In as an input,
which would also make the XBee Pro module a DTE device. A DCE device,
like a modem, has the TxD as an input and the RxD as an output.
You need to connect the UART Data Out on the XBee to the RxD on the
robostix, and the UART Data In on the XBee to the TxD line on the
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