Bonjour for embedded system

Hi,
I have followed the steps provided in the install file to intilize the bonjour for embedded system . first I generated the shared ib for bonjour source code for my embedded system and then I initilized it by calling mDNS_Init api.
Since I just need to browse at my client , I called the browsing fucntion as per dns_sd.h , but I got the below error .
mDNS_StartBrowse: mDNSPlatformRawTime went backwards by 1669225997 ticks; setting correction factor to 1669225997
11-17 00:28:08.481: D/bonjour(1280): mDNS_StartBrowse: mDNS_Unlock: ERROR! m->timenow aready zero
11-17 00:28:08.481: D/bonjour(1280): DNSServiceBrowse("_appl._tcp.", "local.") failed: mDNS_StartBrowse (-65546)
11-17 00:28:08.490: I/System.out(1280): DNSService call failed -65546
11-17 00:32:24.720: E/ThrottleService(161): problem during onPollAlarm: java.lang.IllegalStateException: problem parsing stats:
I hope apple forum will help for this problem ..

I am able to fix the above issue , but subtype search on the embedded systems throws an erros
ex if type="_book._tcp.,author" throws bad param error but same thing works on the linux pc . Can some tell me how to pass the subtypes in embedded application

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Is it possible to create a program for embedded system

Is it possible to create a program for embedded system?

Yes. Many solutions.
1 = http://jcx.systronix.com/
2 = http://www.harbaum.org/till/nanovm/index.shtml (see links to Asuro)
And many more but I'm too lazy too look them for you ...
Dan

JAVA for embedded systems: just a myth ?

Hi,
I'm relatively new to JAVA (a year or so), and so far I'm fascinated. I've only developed for PC using J2SE, although I'heard a lot of hipe about J2ME, which I guess is the JAVA for embedded systems (correct me if I'm wrong here).
I worked a lot with microcontrollers, and I think it would be really nice to program them using JAVA. I googled serched for JAVA enabled embedded systems, but I couldn't find anything.
Anyway, this morning I got to this site and find a very interesting article, which I'd like to share with you and hear your opinions about the 5th myth.
The link is: http://www.chipcenter.com/knowledge_centers/embedded/todays_feature/showArticle.jhtml?articleID=10300909
Cheers!!

>... very interesting article, which I'd like to share with
you and hear your opinions about the 5th myth.
Very interesting. I'd always wondered what happened to the Java chips...
Here's a thought, and an associated question, if any of you reading this happen to be up on modern processor architecture...
What about microcode? Back in school (decades ago) I learned a bit about microcode, which was like very simple, low-level instructions that a processor would "execute" to execute each assembly/machine language instruction. The idea was that if you needed to tweak the instruction set of a processor, you could rewrite its microcode. Seems like this would lend itself nicely to implementing a JVM in "hardware"... The question is, do they even use microcode anymore? With the pursuit of speed and optimization, I wonder if they didn't abandon it and go with highly specialized/optimized circuits instead...
Back to the original question -- it would be somewhat ironic if Java weren't available for embedding systems. The original target system was set-top boxes, etc. I've tried a few JVMs on my Palm -- they're getting there!

Crypto libraries for embedded systems

Hi, I need some crypto libraries for my Xlet running on a MHP receiver. I need that these libraries can use the public key extracted from a certificate and encrypt a digest using that public key. I can't use javax.crypto because it doesn't work on a limited MHP 1.0.2 receiver. I need something studied for it. Thank you!!!
Edited by: fabio80s on Oct 23, 2009 3:24 AM

>... very interesting article, which I'd like to share with
you and hear your opinions about the 5th myth.
Very interesting. I'd always wondered what happened to the Java chips...
Here's a thought, and an associated question, if any of you reading this happen to be up on modern processor architecture...
What about microcode? Back in school (decades ago) I learned a bit about microcode, which was like very simple, low-level instructions that a processor would "execute" to execute each assembly/machine language instruction. The idea was that if you needed to tweak the instruction set of a processor, you could rewrite its microcode. Seems like this would lend itself nicely to implementing a JVM in "hardware"... The question is, do they even use microcode anymore? With the pursuit of speed and optimization, I wonder if they didn't abandon it and go with highly specialized/optimized circuits instead...
Back to the original question -- it would be somewhat ironic if Java weren't available for embedding systems. The original target system was set-top boxes, etc. I've tried a few JVMs on my Palm -- they're getting there!

Compiling linux for embedded system using Arch.

Hi. I build the vanilla kernel for an embedded system using special buildsystem. This buildsystem calls
make INSTALL_MOD_PATH=embedded_fs_path modules_install
The kernel's Makefile installs the modules to embedded_fs_path/lib/modules/$(KERNELRELEASE) and calls /sbin/depmod -b embedded_fs_path $(KERNELRELEASE).
This operation fails under Archlinux because /sbin/depmod is a part of kmod and it expects that modules are placed to /usr/lib/ instead of /lib, so it tryes to make dependencies in embedded_fs_path/usr/lib/modules/$(KERNELRELEASE) instead of embedded_fs_path/lib/modules/$(KERNELRELEASE).
What is correct solution for this issue? I can pass DEPMOD variable to kernel's Makefile to use something else instead of /sbin/depmod, but i don't know value of this variable should be.
Is there any command line options for kmod to force using /lib instead of /usr/lib? As I've seen in kmod sources, there aren't.
Is there any package in repositiries or AUR or somewhere else which provides an application that behaves the same way as old depmod with /lib/ modules location?
Thanks.

tavianator wrote:Fedora Core 7? Wow, that's ambitious. I'd suggest building in a virtual machine or chroot with the target system installed.
centos is probably worse. They're still on 2.6.18 as far as i can tell.
I wanted to avoid chroot/virtual machine (ran one of those for a while). The reason is that my current development build is the same as what is delivered. I don't want to lose that....having to deal with different compilers, libraries, etc can be a pain.
I'll also look into whether or not I can install a "glibc-compat" type package that could alleviate the loader.
Here's the telling part:
the new exectuble:
$ file <executable>
<executable>: ELF 64-bit LSB executable, AMD x86-64, version 1 (SYSV), for GNU/Linux 2.6.27, dynamically linked (uses shared libs), for GNU/Linux 2.6.27
the old executable:
$ file <executable>
<executable>: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.8
Okay....issue seems to be in the glibc PKGBUILD.
it has the line:
--enable-kernel=2.6.27 \
passed to glibc configuration.
Causes big time problems for creating compatible packages.
Last edited by bnolsen (2011-05-05 21:27:20)

LabView for Embedded Systems

Hi all.
I intend to develop an Embedded System, based on an ARM9 MCU, and I´ve been wondering if LabView could be used to create stand alone applications to run on such a system.
I can use Windows CE, or Linux on my system, but I prefer Linux.
Can I develop applications directly on LabView for Linux?
What minimal resources would be needed to run an average LabView application on such a system, like memory capacity, minimal MCU clock speed, etc?
I´ll apretiate any comments, since I have no ideia about what can be done with LabView out
of the PC universe.
Thanks alot.

You can run LV EXEs (not the development environment) on CE if you buy the LV PDA module. Note that applications built using this lack features regular LV applications have.
I remember some threads dealing with the minimum necessary to run LV on linux. If I remember correctly, the basic idea is there are a few official linux versions supported and that anything outside those you will have to experiment on your own. Here's one example. You can try looking for more.
If you want, official requirements can probably be found in the main LV linux page (whereever that is).
Try to take over the world!

Embedded system programming in java

I want to know how to do embedded system programming in java.
can anyone give some sample programs and tell me nice book for embedded programming in java

First take a look at Embedded Server forum (http://forum.java.sun.com/forum.jsp?forum=46) and/or OSGi (http://www.osgi.org)

[svn:fx-trunk] 13366: Ensuring that AFEFontManager, if it is available, overrides the lookup for embedded fonts for all supported font types, including TTF, when embedding legacy DefineFont3 fonts.

Revision: 13366
Revision: 13366
Author:   [email protected]
Date:     2010-01-07 22:15:50 -0800 (Thu, 07 Jan 2010)
Log Message:
Ensuring that AFEFontManager, if it is available, overrides the lookup for embedded fonts for all supported font types, including TTF, when embedding legacy DefineFont3 fonts. BatikFontManager will remain a backup in the event that AFEFontManager is not found though BatikFontManager;s support is limited to TTF for legacy DefineFont3 fonts.
QE notes: Remember that bitmap comparisons could change slightly
Doc notes: N/A
Bugs: N/A
Reviewer: For Gaurav
Tests run: checkintests, QE had run local tests
Is noteworthy for integration: Yes
Modified Paths:
    flex/sdk/trunk/frameworks/flex-config.xml

I got again a total system freeze today when I wanted to launch firefox using only the openbox menu, without wbar running.
So I decided to try now the 'nouveau.noaccel=1' kernel command line parameter, and to use again wbar for my frequently used applis.
In the Xorg log, the differences are:
without 'nouveau.noaccel=1'
[ 30.761] (II) UnloadModule: "nv"
[ 30.761] (II) Unloading nv
[ 30.761] (--) Depth 24 pixmap format is 32 bpp
[ 30.762] (II) NOUVEAU(0): Opened GPU channel 0
[ 30.765] (II) NOUVEAU(0): [DRI2] Setup complete
[ 30.765] (II) NOUVEAU(0): [DRI2] DRI driver: nouveau
[ 30.765] (II) NOUVEAU(0): [DRI2] VDPAU driver: nouveau
[ 30.776] (II) EXA(0): Driver allocated offscreen pixmaps
[ 30.777] (II) EXA(0): Driver registered support for the following operations:
[ 30.777] (II) Solid
[ 30.777] (II) Copy
[ 30.777] (II) Composite (RENDER acceleration)
[ 30.777] (II) UploadToScreen
[ 30.777] (II) DownloadFromScreen
[ 30.777] (==) NOUVEAU(0): Backing store disabled
[ 30.777] (==) NOUVEAU(0): Silken mouse enabled
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[ 1191.621] (II) UnloadModule: "nv"
[ 1191.621] (II) Unloading nv
[ 1191.621] (--) Depth 24 pixmap format is 32 bpp
[ 1191.621] (EE) NOUVEAU(0): Error creating GPU channel: -19
[ 1191.621] (EE) NOUVEAU(0): Error initialising acceleration. Falling back to NoAccel
[ 1191.621] (==) NOUVEAU(0): Backing store disabled
[ 1191.621] (==) NOUVEAU(0): Silken mouse enabled
[ 1191.621] (==) NOUVEAU(0): DPMS enabled
So now 3D acceleration is disabled.
I will see now if the system is stable enough for my daily usage and gives satisfactory performances.
I am almost sure that the mesa nouveau dri driver is the cause of the freezes.
Last edited by berbae (2013-03-27 10:07:42)

HP LaserJet 5100 Postscript network printer interface to Embedded system

HP LaserJet 5100 Postscript network printer interface to Embedded system.
I have the HP LaserJet 5100 Postscript Network printer and want to interface it to Embedded system designed by using the ARM Cortex microcontroller and TCP/IP stack is also ported.
Using the Windows XP, i am able to print test.ps file on the HP LaserJet 5100 PostScript Network Printer.
( copy test.ps \\print_server\Print_port )
i need the documents which will help me for same.
please help...

It appears your printer is a commerical LaserJet printer.
You may get a better reponse by posting in the commercial LaserJet forums.
http://h30499.www3.hp.com/t5/Printers-LaserJet/bd-p/bsc-413
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HT2305 Is there a Bonjour for Windows 8?

I cannot seem to find Bonjour for Windows 8 and the previous version I downloaded does not appear to recognize my printer

Hi,
I afraid you will not be able to use the scanner with Windows 8.1, it is not compatible with the OS.
Regarding VueScan, I afraid it would not be an option as well, the application only support your scanners if there are drivers for the OS:
If there isn't an HP scanner driver at www.hp.com for your operating system, then unfortunately VueScan won't work with this scanner.
You may try using the Vista drivers by running the drivers using the Program Compatibility Troubleshooter as listed below.. select Not Listed from the programs list and browse to the installation file for Vista:
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&dlc=en&docname=c03401961&lc=en#N63
The installation file for Vista can be downloaded below:
http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=sj-47405-1&cc=us&dlc=en&lc=en&...
Shlomi
Say thanks by clicking the Kudos thumb up in the post.
If my post resolve your problem please mark it as an Accepted Solution

Bonjour for Windows -- What is it and do I want to update?

An Apple popup wants me to update my "Bonjour for Windows" installation, whatever that is. Do I want to do this?
I searched on the Apple web site and just get some obscure support documents that do not help me.

Bonjour is an IP-based service that allows a computer to automatically discover other devices on your network. A description of what it provides can be found here:
http://support.apple.com/downloads/BonjourforWindows
It's Apple's trade name for Zeroconf and for Windows users is mostly, though not exclusively, used by iTunes to discover other systems with iTunes Sharing turned on. I would suggest either updating or disabling/removing Bonjour on your system if you're sure you don't need it (other software may also be using it, for printer or server discovery).

Synchronisation and concurrent programming for embedded Java

Hi,
I am looking for Informations about Synchronisation of concurrent access to Objekts for embedded Java applications. Are there Design Patterns or for this topic or general for Sync. in embedded Systems? And are there Embedded JVMs, with special Synchronisation for Embedded Java Apps? I am also looking for an Overview of existing Embedded JVMs of the market. Who can help with e.g. Infos, Books, Links and so on?
Thanks

[takeshi_fl],
It is better for you to post this question under the topic "Embedded Java" on this forum website.

I have a PowerMac G5 using an Edimax EW-7811Un that is unable to communicate over Bonjour with other systems on our network

I have a PowerMac G5 using an Edimax EW-7811Un that is unable to communicate over Bonjour with other systems on our network. On occassion, I can see it appear on iChat on our Network but it doesn't receive any incoming traffic and will drop off soon after.
The PowerMac G5 does not see any other system over Bonjour.
Any help or solutions for getting my PowerMac G5 to be visible on our network would be greatly appreciated.
Thanks!
-Phil

I do not understand why you are using Bonjour. You should be able to configure the g5 to use your router for network setup.
Do you have all of your devices using the same router? You should.
I'm assuming this is a small configuration with one router.
Robert

Experienced LabVIEW & Embedded System & Wireless Embedded System.

Dear sir:
            My ten years of engineering experience should be of interest to a rapidly growing technology company.
            In various capacities in engineering, I have acquire skills in all phases of LabVIEW 7/8, RT System, cRIO, FPGA, Embedded system, and Wireless system developer.
            I am sure I can contribute to your growth and profit. I would appreciate the opportunity to show you how I can help your company meet its goals.
            I am willing to relocate to meet your needs.
Sincerely.
Joe Benjapol Sukpraphrute.

Pleas send me an updated copy of your resume.   I have included a job description below for your review.
Thanks,
Nick Olsen
[email protected]
AutomationTechies.com, Automation.com
www.automationtechies.com www.automation.com
Our client is an Engineering Company which specializes in data acquisition, automated test, and controls systems software.
The Senior LabVIEW Engineer will lead the development of automated test, data acquisition, and control systems using National Instruments LabVIEW software. This position involves direct customer contact and moderate travel within the Northeast United States. Positions are available in CT, MA and NJ.
Requirements
BS in Science or Engineering. Advanced degree a plus
10+ years of experience developing automated test, measurement, data acquisition, and control systems
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Strong mathematics background, including signal processing in time and frequency domains; communications, control, or electronic circuit theory
Effective learning, utilizing and applying new technology
The company provides a competitive salary plus multiple bonus programs and excellent benefits. Join this rapidly growing company by applying online today!

Howto: Embedded Systems?

Hello,
I developed a data acquisition system with a custom hardware device for rehabilition. I used LabVIEW to construct my software but I would like now to have an embedded system, rather than using my laptop.
I have done a little research on where to get started, for essentially making my system portable; rather than using a laptop to run the VI.
I have been looking at the LM3S8962 and the Raspberry Pi with Linux. Preferrably, I would like something with a screen to essentially run the front panel of the VI. Where do I get started and whats a feasible board to look at for an application like this?
Thank you,
Dan

Hey, man I'm also working on it I recommend a book where you will find more information
http://books.google.com.pe/books?id=mb5d_xeINZEC&pg=PA337&lpg=PA337&dq=labview+arm+cortex+m3&source=...
Atom
Certified LabVIEW Associate Developer

Bonjour for embedded system

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