OpenCPN Runs on Embedded ARM

[nohal]

ticki...
As I said, I can host it on my own machine, where space is no concern. But the knowledge how to do it is IMHO a way more valuable asset worth sharing...
To track down what's causing the crashes we need a bit more info than that it crashes... Have a look at Low Power Systems | Official OpenCPN Homepage and try to reduce the limits further and see if it makes a difference.
Also try to check the system state in the moment the crash occurs (memory etc.) and try to isolate a scenario we could reproduce - after a crash have at least a look at the end of the logfile for clues. If you could run gdb to catch the crash, it would be great. Adding some more debugging output to the code would also help you to isolate the exact place causing the problem - but first we need to know what the program was doing when it crashed to suggest where in the code you should place it.
The performance with the vector charts will never be comparable with the raster ones, especially on systems with low-power CPUs.

Re displays - Pixel Qi - *See our Blog for latest about Pixel Qi* looks pretty interesting...

Pavel

[ticki]

hi nohal,
the MEMCAche option brings better performance. i will running the simulator the next night from Philadelphia to washington. we will see.
at the moment i build on the beagleboard complete development enviroment.
if i am ready ,i can debug and compile easyer additional software. bevore i had crosscompiled in vmware.

i think for the user the best is to create Image-file wich can be copied with dd or another tool or have you better idea ? description to build up the system by self will to havy for the most user.

additional :
i will bring today zygrib to the board.

if you have another ideas , you are welcome
regards

[nohal]

ticki...
For an average user most likely, but for a potential developer less so. Both the ready made image and the build instructions have their audiences which not necessarily are the same. What I personally like is the way Narcissus - Online image builder for the angstrom distribution works for example...

Pavel

[ticki]

narcissus works hmm so.. you have seen it on the video. and the chart import(S57) crashes all time. bat for narzissus you have to compile some librarys by self.

i compiled the tinyxml wxwidgets and opencpn with the narcissus sdk and added manually . swapping will not work.

the better way is here
BeagleBoardUbuntu - eLinux.org
with the new kernel and swap partition
dont use xfce4, better icewm or jwm it is smaller.

with the oneric also the hardware -driver for the video and neo extension
works !

you can use simply apt-get for some more apps.

cheers

[ChannelIslander]

I'd love to hear about the monitor.

And I think a disk image is the way to go.

One could have two beagles loaded with running installation of OpenCPN and charts, ready to serve as back up when the first goes down, plus monitor, for less than an Ipad and much less than a laptop.

I'm a customer!

[ticki]

hi @all,
so it works also good with CM93 charts. only the ENC S57 is a bit slower.
I can upload the image or the binarys(including the libs). also zygrib is running.
bat use the pandaboard it cost a bit more bat has 1GB RAM. software also run on the pandaboard.
the normal pandaboard is 4x faster than the beagleboard.
i think that will be the solution , together with the
new 10.1" PixelQi Display PQ101WX01 - Resolution 1280x800. I ask for the price.

bat without charts it is not much different CPU usage ...????
regards
ticki
@developers
tip : if you work signal based in owen thread for the ports and in owen threads with Interupts the program will much faster !
i know C++ gives you better code structures, bat on the basework with the C is much faster.
if you need some code send pm

[Bouncingwilf]

Hopefully, it will run on this also! Raspberry Pi | An ARM GNU/Linux box for $25. Take a byte!

Bouncingwilf

[ticki]

sorry , bat raspberry will to small i think(256 MB).
regards
ticky

[idpnd]

Originally Posted by ticki

@developers
tip : if you work signal based in owen thread for the ports and in owen threads with Interupts the program will much faster !
i know C++ gives you better code structures, bat on the basework with the C is much faster.
if you need some code send pm

Sounds like an interesting idea, please post your input on OpenCPN::Tracker All Projects: Tasklist to get the devs' attention

[Bouncingwilf]

Originally Posted by ticki

sorry , bat raspberry will to small i think(256 MB).
regards
ticky

Model "B" has 512MB +ethernet for$35 - I'm certainly going to try it!

Bouncingwilf

[TritonYawl]

Congratulations ticki!

Very encouraged by your progress. I have a TrimSlice (1Ghz Cortex A9, 1GB, SATA SSD, 2-5W) arriving in the mail soon and my first task will be to get OpenCPN running on it.

http://www.trimslice.com/images/Trim...re-low-res.jpg

I've also had my eye on the new PixelQi panel for bulkhead-mounted cockpit display. Might be a problem for me though because TrimSlice does not expose LVDS and Pixel Qi 10,1" (1st gen) open frame solution with DVI or USB input starts at €380 ($430).

TrimSlice will also drive LED-LCD inside display for media and general computing as well as nav. I will configure Xorg for 'multi-seat' (dual input/display) so crew can watch movie below while navigator operates OpenCPN above:

https://wiki.archlinux.org/index.php/Xorg_multiseat

Will post results when I get there.

[ticki]

hi , trito
tip use fluxbox as the windowmanger it brings you alot of performance.
i have upload the files , nohal has allocate the webspace for my files and will be open it.
@nohal thanks for that !

regards
ticki

[nohal]

By the way, the ARM stuff from ticki is available at Index of /ticki

Pavel

[TritonYawl]

Thanks ticki and Pavel for making this available!

Originally Posted by nohal

By the way, the ARM stuff from ticki is available at Index of /ticki

Pavel

[jake-i]

Ticki,

out of curiousity: what model of embedded-arm board are you using?

I've played with their ts-7400 for a while but doubt that one is fast enough.

Are you using one of their more recent boards?

Cheers,

Jake.