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by higgins-demack
Tue Apr 02, 2013 1:05 pm
Forum: HATs and other add-ons
Topic: Setup code rejected by C++ compiler
Replies: 10
Views: 2388

Re: Setup code rejected by C++ compiler

Wow, Gordon, that's a great summary. Many thanks. I did not appreciate the ease of use of WiringPi. In fact I just sucked the gertboard_sw code straight into my C++ project to avoid any possible issues with extern "C" blah, blah, blah ... Incidentally my stuff is working now. I have ported the IEC 6...
by higgins-demack
Tue Apr 02, 2013 12:11 pm
Forum: HATs and other add-ons
Topic: Setup code rejected by C++ compiler
Replies: 10
Views: 2388

Re: Setup code rejected by C++ compiler

Thanks!
Has anyone tried this:
http://www.raspberrypi.org/phpBB3/viewt ... 2&p=292120
It looks good but installing kernel modules is new territory for me.
by higgins-demack
Mon Apr 01, 2013 10:57 pm
Forum: HATs and other add-ons
Topic: Setup code rejected by C++ compiler
Replies: 10
Views: 2388

Re: Setup code rejected by C++ compiler

Hi Gert and all. Would you please post a link to the drivers you mention? I did a quick search but nothing obvious showed up. Another board I was playing with had block devices (files) for the I/Os - very neat.
by higgins-demack
Mon Apr 01, 2013 11:38 am
Forum: HATs and other add-ons
Topic: Setup code rejected by C++ compiler
Replies: 10
Views: 2388

Re: Setup code rejected by C++ compiler

Thanks! I'm still learning C++ (the basics, let alone how to access memory-mapped I/O), so I'm grateful for the lesson on how to do it the C++ way. I was pleased and relieved just to get it working in the first place (it does work, by the way).
by higgins-demack
Sun Mar 31, 2013 8:23 am
Forum: HATs and other add-ons
Topic: Setup code rejected by C++ compiler
Replies: 10
Views: 2388

Setup code rejected by C++ compiler

A quick problem report, and hopefully a fix: I have been integrating the C-language code in gertboard_sw into a C++ industrial programming framework. In its original form, the code is roundly rejected by the gnu C++ compiler. I am no expert, but using the error messages as a guide, I have been able ...
by higgins-demack
Fri Mar 15, 2013 4:35 am
Forum: Other projects
Topic: OpenPLC and Graphical Programming with Rasberry PI
Replies: 28
Views: 38244

Re: OpenPLC and Graphical Programming with Rasberry PI

For those who prefer object-oriented, event-driven logic as per IEC 61499 rather than point-oriented, cyclic logic as per IEC 61131, have a look at 4DIAC.org (http://www.fordiac.org/) and their open source IDE and runtime (http://sourceforge.net/projects/fordiac/). The 4DIAC IDE is Eclipse based - I...
by higgins-demack
Wed Nov 21, 2012 1:03 pm
Forum: Python
Topic: 'idle' vs 'idle-python'
Replies: 0
Views: 391

'idle' vs 'idle-python'

Both are available from the GUI launch menu in v2 and v3 versions. For the uninitiated, what's the difference?
by higgins-demack
Mon Oct 29, 2012 11:59 am
Forum: HATs and other add-ons
Topic: Gert Board Discontinued?
Replies: 73
Views: 16203

Re: Gert Board Discontinued?

Hmmm ... Maybe the Model B revision was a mistake anyway. How many after market products have been trashed? Especially cases!
by higgins-demack
Mon Oct 29, 2012 11:46 am
Forum: HATs and other add-ons
Topic: Gert Board Discontinued?
Replies: 73
Views: 16203

Re: Gert Board Discontinued?

Lucky me! Through sheer dumb luck I own a rare and collectable item!
by higgins-demack
Mon Oct 29, 2012 11:35 am
Forum: HATs and other add-ons
Topic: Gert Board Discontinued?
Replies: 73
Views: 16203

Re: Gert Board Discontinued?

Is it possibe the original Gertboard design has been invalidated by the revision of the Model B design - extra pins etc.?
by higgins-demack
Thu Jul 12, 2012 11:12 am
Forum: C/C++
Topic: Porting cmake
Replies: 5
Views: 2991

Re: Porting cmake

To answer the question by plugwash, I'm using Debian. There's nothing wrong with the repository version as far as I'm aware, but last time I looked it was several points behind the latest release.
by higgins-demack
Sat Jul 07, 2012 11:58 pm
Forum: C/C++
Topic: Porting cmake
Replies: 5
Views: 2991

Porting cmake

The good news: It works. Just build from source using the instructions in the cmake (2.8.8) distro. The bad news: You can't do it in a terminal on the desktop. Compiling goes smoothly but the linker bombs. It guess it runs out of memory. Kill off everything but the "bare" command line and do your "m...
by higgins-demack
Thu Jul 05, 2012 9:06 am
Forum: Beginners
Topic: SD Card type
Replies: 5
Views: 4962

Re: SD Card type

I have a problem with the list of working SD cards: Have just tried to by my Pi with a Sandisk 4Gb SDHC Class10 card and it's a no-go. I switched to a Sandisk 4Gb SDHC Class 4 and all was well. I wrote the image to both cards uding Win32DiskImager on a Dell XPS. Ironically, I bought the Class 10 car...

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