Re: auto reset / rs 232
- From: rickman <gnuarm@xxxxxxxxx>
- Date: Mon, 2 Feb 2009 12:25:34 -0800 (PST)
On Feb 2, 2:22 pm, fbob <fantasma...@xxxxxxxxx> wrote:
Hi everyone,
I have 2 unrelated questions:
1) I have a Xilinx ML505 board and I am looking for a way to make my
SRAM power cycle automatically. Ideally I would like the SRAM to power
off, then power on again after 30 seconds or more. Is there any way to
have either the SRAM individually, or the board as a whole, do this?
2) The ML505 schematics say the RS 232 port is DTE, while the User
Guide says it is DCE. Can anyone confirm which is correct? Do I need a
null-modem cable or a straight-through cable to connect to a PC?
If you have the schematics, you can find out if the driver is on pin 2
or pin 3 of the DB-9 connector telling you how to wire the cable.
I'm not familiar with this board. Does it have jumpers to allow pin 2
and 3 to be swapped?
Rick
.
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