Phew - Got it working. It seems most guides about the wiring are incorrect.
This page is wrong http://www.tomjudge.com/index.php/SS4000-E/Serial_Cable
This page has the correct wiring -
http://projects.kwaak.net/twiki/bin/view/EM7210/SerialConsoleCable
At least the bottom part. I soldered 3=3,
I wrote to this list a few weeks back with similar problems Mark. I
couldn't get any communication via the serial ports.
Two null modem cables and two idc10s to db9 brackets. Tried
resoldering the correct pinouts on the bracket too, nada. No garbage
no nothing.
Let us know if you
H Danny,
Will let you know if I make any progress. Feel like such a noob, which I
am when it comes to this embedded stuff.
Just a quick question. Do I need to have the linux arm kernel installed
via tftp before the serial console shows any output? I should think not
and that the redboot? loader
Redboot gives a 1 second prompt through ttys0 before booting the image.
From everything that I have read, getting an active serial connection
is pretty much step 1.
Sent from my iPhone
On Dec 27, 2009, at 10:51 AM, m...@jumpingbean.co.za wrote:
H Danny,
Will let you know if I make any
Hi Mark,
On Sun, Dec 27, 2009 at 05:51:32PM +0200, m...@jumpingbean.co.za wrote:
Just a quick question. Do I need to have the linux arm kernel installed
via tftp before the serial console shows any output? I should think not
and that the redboot? loader would output text to the console by
What I don't understand is why one would work and not the other if
we're (re)soldering the wires ourselves?
Sent from my iPhone
On Dec 27, 2009, at 5:06 PM, JF Straeten jfstrae...@scarlet.be
wrote:
Hi Mark,
On Sun, Dec 27, 2009 at 05:51:32PM +0200, m...@jumpingbean.co.za
wrote:
Jumping bean your java and linux experts
http://www.bondedadsl.co.za Bonded ADSL Solutions
http://www.ip-pbx.co.za Call Centre and Business PBX specialists
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Hi
http://www.tomjudge.com/index.php/SS4000-E/Serial_Cable
this one is only partially connected, may not work on some hardware
http://pinouts.ru/SerialPorts/Serial9_pinout.shtml
this one is fully connected it seems
See also on DB9 connector
http://en.wikipedia.org/wiki/RS-232
It seems to me
Hi Mark,
specifically null-modem cable:
http://en.wikipedia.org/wiki/Null_modem
R,
Willem
.
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mxc wrote:
Hi all,
I am using this tutorial
http://www.tomjudge.com/index.php/SS4000-E/Serial_Cable for the pin mappings
for my serial cable. This differs from the following
http://pinouts.ru/SerialPorts/Serial9_pinout.shtml
Anyone know which one is correct?
I've looked at the two pages
Hi Willem,
Thanks for the info. Yup, I know maybe trying too many things at once,
seems its the only way though as I can't find any shop over here with the
correct null modem cable. Hopefully I at least get part way there.
Once again thanks for the feedback.
regards
Mark
Hi Mark,
Hi John,
I am new to this so maybe I don't understand the terminology. I assumed
the NC on the tom judge page meant no connection, i.e no wires to be
soldered. On the pinouts page from the Russian domain the remaining pins
are connected and not necessarily straight through.
The pins that are
m...@jumpingbean.co.za wrote:
j...@sinodun.org.uk wrote:
mxc wrote:
Hi all,
I am using this tutorial
http://www.tomjudge.com/index.php/SS4000-E/Serial_Cable for the pin
mappings
for my serial cable. This differs from the following
http://pinouts.ru/SerialPorts/Serial9_pinout.shtml
Hi John,
I first tried the three wires as per tom judge page, then all of them as
per the Russian page. Still no luck. Currently I am reading up on serial
communication on http://en.wikibooks.org/wiki/Serial_Programming
I think I may have to write a little java app to see whats wrong with the
On 12/26/2009 06:26 AM, m...@jumpingbean.co.za wrote:
I think I may have to write a little java app to see whats wrong with the
cable. I can find any message on /var/log/message or /var/log/syslog so
its a bit difficult to see if its just a poor soldering job or I am doing
something else
Hi,
The java app is just to see if it possible to test the cable somehow. I
can connect to the serial port on the pc and I know that that is working.
Just writing the data receive event handlers now to see if I can get
anything.
I will try screen with the serial device too. Its all a learning
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