[hpsdr] For budding firmware hackers...

Sat Feb 24 11:27:30 PST 2007

Malcolm,

SVN is a source code repository system, i.e., a client-server set of
software for storing source code and keeping track of changes as it is
developed. It's proper name is Subversion. Assuming you're using
Windows, you can get the client software you will need from
http://tortoisesvn.tigris.org/, follow the Downloads link. It's very
simple to install. 

Once it's in place, right-click on the desktop and choose SVN
Checkout.... Put 

<
svn://206.216.146.154/svn/repos_sdr_hpsdr/trunk/AE6VK/Janus/tags/Alpha2/
1.0.0 >

in for the URL and an empty folder for the checkout directory. That will
pull down the CPLD source.

I know this is a very sketchy set of instructions. Since Subversion is
also the way the PowerSDR code is maintained, I can punt here and refer
you to
http://flex-radio.com/download_files/PowerSDR/Docs/TortoiseSVN.pdf for
more details. Keep me posted as to how you get on.

            Chris - AE6VK

  _____  

From: Malcolm Austin [mailto:malcolm at maustin.fsnet.co.uk] 
Sent: Saturday, February 24, 2007 11:00 AM
To: Christopher T. Day; hpsdr at hpsdr.org
Subject: Re: [hpsdr] For budding firmware hackers...

Chris,

Although I have subscribed to the HPSDR reflector for some months now,
I'm very new to all this and have just been a lurker so far.

I have been trying to equip myself ready for Janus/Ozy to drop through
the letterbox. I have two questions (which probably amount to the same
thing): -

1. Where is the svn and what is it?

2. How do I get access to the code there?

Please excuse my ignorance but I haven't found any way to access it via
my web browser and I am obviously missing some fundamental piece of
info!

Malcolm Austin

	----- Original Message ----- 

	From: Christopher T. Day <mailto:CTDay at LBL.Gov>  

	To: hpsdr at hpsdr.org 

	Sent: Wednesday, February 14, 2007 6:35 PM

	Subject: [hpsdr] For budding firmware hackers...

	***** High Performance Software Defined Radio Discussion List
*****

  _____  

	With the announcement of Janus and Ozy, I expect an increase in
interest in programming the Janus CPLD and the Ozy FPGA; there are a lot
of inveterate fiddlers on this list. You will need to gain some
familiarity with Altera's Quartus II software to do this. Download at
least the Quartus II Web Edition Software and the MegaCore IP Library
from::

	<
https://www.altera.com/support/software/download/altera_design/quartus_w
e/dnl-quartus_we.jsp >

	There is an _awful_ lot in there. As a beginner myself at this,
I've only explored a tiny fraction of what's available. Start with the
Help/Tutorial. This gives you a bare beginning, but doesn't take you
very far. To make others' journeys a little easier and provide an
example with a little more meat on it, I've refactored a snapshot of the
Janus CPLD code and put it into SVN at:

	<
svn://206.216.146.154/svn/repos_sdr_hpsdr/trunk/AE6VK/Janus/tags/Alpha2/
1.0.0 >

	Download the code, and double-click on the Janus.qpf (Quartus
Project File). While there is only one Project, there are two Revisions
[Altera's term] in that project, a Block Design File revision and a
Verilog revision. The Block Design File revision opens by default as I
think it is easier to follow to start with. It is a form of direct
schematic entry that nonetheless really compiles to loadable code. The
Verilog revision is a traditional computer language format. To switch
revisions, use the Project/Revisions... dialog and double-click on the
other one.

	Since I've stored only the minimum source files, you will have
to compile the code to get the full effect, once for each revision - use
the Processing/Start Compilation menu item. Yes, I know there are a
bunch of Warnings produced, but it's ok, believe me. Once the
compilation is finished, you can expand the Hierarchy in the Project
Navigator pane to see the structure of the code; double-click on a
hierarchy element, and the corresponding source will open in the large
Editor pane. I'm a hierarchy freak, so this is probably overdone, but it
keeps each layer simple. 

	This is working code - it is running on my Janus/Ozy Alpha2
board set at the moment - but it is not final code, so it will need
updates to work with the delivered boards. Happy exploring!

	            Chris - AE6VK

  _____  

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