[Xastir] standards are wonderful...

2009-08-21 Thread mark . rice
Standards are wonderful... there's so many to choose from.

 

But I was really getting furious...  I was given a slightly used
motherboard and thought it was time to upgrade the OS and Xastir (was
using Fedora Core 5 and Xastir 1.84).  So I loaded Ubuntu 9.04 and
things went pretty smoothly with Xastir 1.95, too.

 

The motherboard had a 10-pin header plug for the serial, but I didn't
get a ribbon cable for it. The header looked the same as another
motherboard that I had.  I found a few extra serial ribbon cables lying
around in my 'old parts' stash... so it was done, right?

 

Well, after wringing my hands over the man pages of setserial, stty, and
cu, I couldn't get even a simple loopback to work. I was disgusted,
because it seemed like peripherals have always been a problem area for
me and Linux (well maybe just me.)

 

Finally, I wondered if the serial ribbon cable had the proper pin-out
for the motherboard header  no, it didn't.  It wasn't even close,
and I kick myself for not checking that.  But who would make their own
standard, eh?  

 

With a soldering gun, two serial ribbon cables, and a bit of time I made
a serial adapter cable with the right pin-out and things are humming
along just fine between the tnc and computer.

 

Standards are wonderful   

 

-  Mark Rice

KK5MR

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Re: [Xastir] standards are wonderful...

2009-08-21 Thread Alex Carver
--- On Fri, 8/21/09, mark.rice wrote:
 Finally, I wondered if the serial ribbon cable had the
 proper pin-out
 for the motherboard header  no, it didn't. 
 It wasn't even close,
 and I kick myself for not checking that.  But who
 would make their own
 standard, eh?  

That's a little surprising considering there is a standard for the serial port 
pinout.  It was a one-to-one mapping.  Pin one of the header went to pin one of 
the D-shell connector.  Pin 10 was to be blank and used as a polarity key with 
a matching plug in the connector hole.

However, I had the same experience with a motherboard using a USB header.  It 
is five pins and is normally set up as Power, Data Minus, Data Plus, and 
Ground.  This one motherboard has some weird arrangement that I have yet to 
figure out because one port works and the other doesn't.  I'll have to probe it 
some more next time I open it to see if I can get both ports functional.


  
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Re: [Xastir] standards are wonderful...

2009-08-21 Thread Niall Parker

Alex Carver wrote:

--- On Fri, 8/21/09, mark.rice wrote:

Finally, I wondered if the serial ribbon cable had the proper
pin-out for the motherboard header  no, it didn't. It wasn't
even close, and I kick myself for not checking that.  But who would
make their own standard, eh?


That's a little surprising considering there is a standard for the
serial port pinout.  It was a one-to-one mapping.  Pin one of the
header went to pin one of the D-shell connector.  Pin 10 was to be
blank and used as a polarity key with a matching plug in the
connector hole.


The other cable is typically to make it easy for use with IDC 
connectors, just clamp one on each end. I'm sure both made perfectly 
good sense to the engineers involved, just a different viewpoint (a 
perfect example of the difference between an internal and external 
interface ... ;)


I always made a point to mark my serial cables as 'A' or 'B' just to 
make sure they didn't get mixed up.


... Niall
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[Xastir] OT: Comercial mapping / directions software that includes Canada?

2009-08-21 Thread David Flood
As someone who occasionally works on maps for bike rides that I then support
as a Public Service event, I find myself working on one for next year that
will spend some time just north of the border (Lauier to Danville to be
exact).  Are there any commercial, Street Atlas like programs that have
Canadian roads at least near the border?  I'd love to also get ToPo info but
at least having street information would solve most of my problems.

Dave
KD7MYC



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Re: [Xastir] OT: Commercial mapping / directions software that includes Canada?

2009-08-21 Thread David Flood
Detailed discussion of this taken off-list via Jabber with Curt.

If there was a program with the ease of use of Street Atlas that mapped
shapefiles, I'd take a look.  I do see that SA 2009 claims to have Canada
data.  I've been using 2008 since it is backwards compatible with ToPo 7
files.  May have to find the 2009 CD I have someplace and install it.

-Original Message-
From: xastir-boun...@lists.xastir.org
[mailto:xastir-boun...@lists.xastir.org] On Behalf Of Curt, WE7U
Sent: Friday, August 21, 2009 14:37

Are the Canadian street shapefiles not adequate for the purpose?


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Re: [Xastir] OT: Commercial mapping / directions software that includes Canada?

2009-08-21 Thread Brad Douglas
I missed part of this conversation, but as a GIS person, I've had little 
trouble getting reasonable data for Canadia.


Here's an accuracy map for ESRI's free North American vector street maps:
http://downloads2.esri.com/resources/arcgisonline/supplemental_images/StreetMap_Cov_NA.jpg

I also found this real quick, too:
http://www.geobase.ca/geobase/en/search.do?produit=nrnlanguage=en

Maybe those sources aren't up-to-date enough for your uses?

BTW, it's a fairly automated process to convert raster street maps to 
shapefile.  The difficult part is hand-coding the data table of street 
names.


I hope I understood the conversation correctly and I hope this helps.

On 08/21/2009 02:51 PM, David Flood wrote:

Detailed discussion of this taken off-list via Jabber with Curt.

If there was a program with the ease of use of Street Atlas that mapped
shapefiles, I'd take a look.  I do see that SA 2009 claims to have Canada
data.  I've been using 2008 since it is backwards compatible with ToPo 7
files.  May have to find the 2009 CD I have someplace and install it.

-Original Message-
From: xastir-boun...@lists.xastir.org
[mailto:xastir-boun...@lists.xastir.org] On Behalf Of Curt, WE7U
Sent: Friday, August 21, 2009 14:37

Are the Canadian street shapefiles not adequate for the purpose?



--
73, de KB8UYR/6 Brad Douglas r...@touchofmadness.com
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