Testing Harbour on RaspBerry PI

http://www.myalbum.ca/Album=DMP8NFP3

Bruno

Bruno,

Sory about that

I try to upload to another site

Bruno

I just try , and loged out , i can enlarge images , can you try again ?

Bruno

Hi Bruno,

THAT are interesting news !

Please would you like to tell us more about build process:

any special switches used for this cpu ?

needed time to build harbour ?

best regards

Rolf

NO special switches , only take svn , and compile like linux

some libraries not compile because are not compatible with arm

This works ok because I am using a linux adapted for arm provided

by Raspberry foundation.

Yes is very interesting considreing the hardware low cost

Compilation takes several hours !!!! , I am using raspberry in his minimal power

to avoid procesor heating, but it can be overclocked to get more power !!!

Bruno

Try here to see better

http://www.flickr.com/photos/92431841@N03/sets/72157632578255146/

Hi Bruno,

thanks very for your pictures.

You miss some development libs,

libx11-dev

libgpm-dev

libncurses5-dev

libslang2-dev

for maybe other libs look in file named 'INSTALL' in harbour directory, i.e. for freeimage etc.

then gtxwc terminal hopefully will build. Or does Raspi not use a X11-Window System, should be ??

Then try for us all to build gfx.prg in the /tests, link it with -gtxwc

Need one keypress after start to display graphics ...

best regards

Rolf

Yes probably , I only did a basic test

But I can try if it is important

Bruno

Hi again,

gtxwc is -the- terminal for Linux, without i would be unhappy.

If that works, i immedate order me a Raspi ;-)

best regards

Rolf

yes I know

I am trying now , I update the situation  a few hours from now

the compilation take about 4 hours

Bruno

Hi Bruno,

on my older 3Ghz Xeon with all together 4 cores a fresh compile with all extra libs is done in about 3 minutes.

Means 3 * 4 = 12 minutes for one core and 3000 /700 ~ 51 minutes.

Plus speed difference for SD card versus my ramdrive ;-)

Your Raspi is running at 700Mhz, right ?

May i ask what SD card you are using ?

So this build time is quite good for my estimation of Raspi's computing power - and if he's mighty enough for what i have in mind he should do for me.

Looks not so bad ...

THANKS a lot for your testing

Rolf

It is a Kingston 4 GB HC

Bruno

My Raspi is a Model B 512 Ram

http://www.raspberrypi.org/faqs

Bruno

Well , take 3.5 hours aprox

gfx compiles ok

But when run , give an error about can't load fixed font

what do you think that I need to install ?

Bruno

Hi Bruno,

there is not font named in gfx.prg - we can try to do so with adding a line for this, after first IF-branch, at ca. line 20:

hb_gtInfo( HB_GTI_FONTNAME , "Terminal")

if not works we need a search what font's are installed, uhm i am just researching how to do that ...

--

hbmk2 gfx.prg -gtxwc

best regards

Rolf

I think is an OS question , in linux fixed fonts are needed for console

and may be is no installed , but i not remember the name to try install it

Bruno

or:

try to install package xfonts-terminus, and then

hb_gtInfo( HB_GTI_FONTNAME , "Terminus")

Hi again,

i've installed so many fonts here, allubuntu ;-)

think it should be 'xfonts-base' packet, and/or 'xfonts-100dpi-transcoded'

best regards

Rolf

Works ok

Then I upload the images

a reboot was needed

Bruno

http://www.flickr.com/photos/92431841@N03/8402609177/in/set-72157632578255146

Bruno

FULL STRIKE, that is great picture - so we have a fully running Harbour on Raspi, or some seem to say ArPi - SO FINE !

Will sure order one, and check what this small thing is capable to compute.

There exists a nice copper ! heatsink, you sure know - for pushing it to 1Ghz.

Then with fastest available SD Card, i think of an SD10G2/8GB Kingston Ultimate, this seem reported to work ..

very interesting news

THANKS, Bruno

You are welcome !!

I just put it on 900 mhz ( medium power ) using raspi-config

and temperature is not to high

Speed increased

Bruno

A couple of notes here.
Now Raspberry Pi comes with a junior version as well.  Make sure you by the version with 512MG memory and two USB slots, etc.
Compatible  Linux comes in 4 versions.
Recommended: Rasbian - 16th December 2012
Check out

http://learn.adafruit.com/adafruit-raspberry-pi-educational-linux-distro

for information and some tutorials
Check out

http://zenit.senecac.on.ca/wiki/index.php/Raspberry_Pi_Fedora_Remix

for the Fedora version about two months old.
There is a Bodhi version

http://wiki.bodhilinux.com/doku.php?id=installation_instructions

For those interested in Audio/video applications checkout

http://wiki.xbmc.org/index.php?title=OpenELEC

There is a very active website and forum at Raspberrypi.org

My raspberry is Model B 512 m Ram

Bruno

According to Raspberry Pi organization's own recommendation, overclocking is acceptable and does NOT void the warranty.  You get the impression that they actually recommend it.
The recommendation is to overclock in stages and there are 4 stages predefined and you just do it with a click.  I have a Pi which has been overclocked to the fullest extent and since it is half open to air in the room there is hardly any heat to worry about.  Everybody should decide for themselves how much overclocking they want to do.  The usual caution applies..... You take the risk for yourself.

https://www.youtube.com/watch?v=SBsDjNWhukk
gives you part 1 of a video.  There is a part 2, but right now I can't find it.

On another aspect of it, I forgot to mention that there was the original Pi with 256 mg memory,  This changed to 512 MB memory on board in September/October, 2012.  In January, 2013, they introduced a slightly reduced version.  It is only slightly lower in  price and I was trying to alert everybody to avoid this latest unless you want to use it with C language and a simple  I/O application, or perhaps for classroom teaching.

Yes , as you can see in my last email , i put in medium usiing the same tool that your video
shows

And not heat much more than previously state

Thanks Luigi

Bruno

Very interesting your tests elch !!!

LEt me know if you implement this library on harbour

Thanks for share your tests !!!

Bruno

short again, Bruno

forget to mention:

arm_freq=1100

with

over_voltage=6

more i'm not willing to put on.

and only try:

core_freq=xxx

.not. this gpu_freq=

--

And better make a full backup (dd_rescue, tar), before checking if network runs ok.

That is not compareable to a 'normal' system break, where only journal must be re-applied -- FS is really ill afterwards, can be just thrown away.

Mentioned gpio wrapper lib is nearly ready, what i want from it and a little more - but fully untested. Still waiting for my electronics master to build me:

4 relay + 4 input, all fine secured behind a opto-coupler.

When i checked it, i can sent lib or put it here.

Meanwhile you can easy check the link, his lib will at least be needed - there will also a small executable build with his one for 'manual' gpio play.

best regards

Rolf

I have 2 PI still not used, never switched on.... I hope to do something with them really early.  probably a media player and to put on tv, in an easy way, some programs my family needs.

Hi,

as media-SERVER, maybe a good task for him - but player !?

With great respect to this fine machine, but i had no success in this kind.

First there is NO 'original' flash, only this 'gnash' for browsers, i beg you.

As browser is designated Midori ;-), i put an iceweasel (older FF) on it.

All together a brilliant example of how bloated these browsers all are.

[ And how fast a Harbour app can be :-) ]

Also i intense tryed all-can-do VLC: it starts playing skipping, then video freezes - progress bar still moving.

Perhaps i made all together all wrong, but my first result is very negative for video playing.

An ultra cheap, ultra powersaving NAS -- an RC Helicopter controller -- or many other tasks ...

regards

Rolf

Hi,

> Perhaps i made all together all wrong, ...

Not all, but VLC makes here a bad job, omxplayer can do a bit.

But Video is forbidden for devels' ;-)

So correct to fperillo:

you are right, there seem just actual ready some disk-images to make it a time consuming media center even controlled with TV remote, but i won't need that ...

Raspberry Harbour developers want to hear music at work, perhaps with me recommended audacious ? - and sure, before that something to compile ;-)

To correct the left bug to -also- play mp3, install

libpulse-dev, libasound2-dev, audacious and mpg123

[if not already known: synaptic is a convenient gui package manager, also bit slow here]

and follow the good last description here at bottom:

http://www.raspberrypi.org/phpBB3/viewtopic.php?f=33&t=10656

To save cpu time switch to winamp classic surface and here can turn off analyser display. After that only about 15% cpu is needed, instead of about 40% before.

Regards

Rolf

Hi, I don't have with me the links but yes, there are several images.

Actually I have at home a linux pc with some dvb cards (Sat and Terrestrial) and using VDR. I have several analog standard definition boxes (old hauppauge mvp) that I use in other rooms as streaming clients.

Now with Rasperry I may have cheap HD boxes for HD streaming.

To have best results you must buy a mpeg2 license (less than 3 euro) to have accelerated mpeg2 playback. mpeg4 acceleration is included. Audio is best to pass it to the ampli, since there may be no cpu power to transcode.


I also want to use the other Raspberry as an alarm "cpu", but I need to but i/o pins and connect to actual alarm cpu... and the library someone was talking about in this thread... :-)