I2C communication with FPGA

We have tried using the following program to communicate with an I2C compas using the cRIO 9014 and the digital I/O NI9403.
http://decibel.ni.com/content/docs/DOC-1151
We get an error when we try to run the host VI(see the error on the following link)
Error
The project we try to run its packet here: http://uldgade.dk/I2C.rar
Or if anyone have another working solution for communication with I2C. The device we try to communicate with is a compas from Honeywell HMC6352

Have you seen this?
http://sine.ni.com/nips/cds/view/p/lang/en/nid/209123
Adnan Zafar
Certified LabVIEW Architect
Coleman Technologies

Similar Messages

I2C communication with USB 8451

I am measuring capacitance using AD7746. I have 10 such CDC's connected through two PCA9547 multiplexers(to avoid address conflict). Can I use USB8451 to collect data instead of a microcontroller. Also Is there is another DAQ with 2 wire I2C communication or is this the only one with I2C. Also is there some part with 10 I2C channels so I can collect data without using the multiplexer which adds complexity to code.

hello krtiruth,
If I understand your question correctly, you would like to know if the USB-8451 is a good choice for your particular chip( AD7746). As long as your chips allowing for different addressing, for you 10 different addresses, the 8451 can be connected to all the chips at once, an address each one individually through their particular address.This should allow you to not need the multiplexers to distribute communication to your various chips. As of right now the USB-8451 is the only I^2C device that National Instruments sells. Thanks again and have a great day!
Regards,
Nicholas K
National Instruments
Applications Engineer

Compact Rio - Multiple RT Threads communicating with FPGA

Hello,
What is the proper way to configure the OPEN FPGA REFERENCE call in Labview when multiple threads running on the RT side need to communicate with processes running on the FPGA?
Thanks,
- Jim

You can open multiple instances to the same FPGA VI, but since there is just a single bifile it is a shared resource. So you might introduce adittional jitter to your timecritical code.
But since accessing IOs or DMAs of the FPGA VI is really, really fast, you might not notice it.
You could also create an API for accessing the FPGA which you could use as a SubVI configured as Subrouting with "skip if busy is true", or you could handle all the access to the FPGA in a single thread and use other mechanisms to share the data among your RT VI.
Christian

I2C interface with FPGA

I'd like to use a 7842R FPGA card to configure and fetch the temperature from a LM75 temperature measurement IC. Would there be code available for this online, or an example of a generic IC2 interface? If I must code from scratch, how many hours should I budget?

Have you seen this?
http://sine.ni.com/nips/cds/view/p/lang/en/nid/209123
Adnan Zafar
Certified LabVIEW Architect
Coleman Technologies

Problem of communication with compactrio

Hello,
I am working with a compactrio 9014 and labview 8.5
I have a problem of communication with my compactrio. I acquire sound with NI 9215 and transmit points from the fpga VI to the VI on the real time target at a rate of 10Khz. On the VI on the RT I have two loops, one determinisic running at a speed of 10Khz (0.1ms) (in this loop I will do my signal processing) and one non-deterministic running much slower (20ms) to communicate data to my computer. To communicate data to my PC, I used shared variable.
The problem is that if I run the VI_RT, I loose immidiately the connection. I think that is because the VI is taking up all of the execution time of the
processor and is starving out the communication loop that is used to
send data back to my PC.
Because of this problem, I try to configure my compactrio to automatically run on startup of my cRIO. So I follow the steps I have read in another message in the forum posted by MattP
To make your application (RT host VI and FPGA VI) run automatically on startup of your cRIO, you will need to do the following:
1. Download the FPGA VI to the flash memory on your cRIO. If
using LabVIEW 8, right-click on the VI in the Project Explorer Window
and select Download VI or Attributes to Flash Memory...
2. Build an executable out of the RT VI. Under your RT target
in the Project Explorer, right-click on Build Specifications and select
New>>Real-Time Application. Select the source files necessary
for your application and any support files to be included. Click Build.
3.. After building the RT Application, you will find its entry
under the Build Specifications folder in your project. Right-click on
the application and choose Set as startup. Right-click again and
choose Deploy, which will download the application to your cRIO.
With this procedure, I thougt that I can run my loop faster because I don't have the RT VI open on my desktop (PC), so the PC don't have to synchronise the VI. But when I startup my compactrio, I loose connection with the target...
So, what is wrong with my project? Is it possible to run a loop at 10kHz on the real time processor and communicate in the same time (but every 20ms) data to my PC. Can someone explain me the right procedure to do that at this frequencies?
I have attached my project and hope that someone can help me.
Attachments:
Communication.zip ‏658 KB

Hello,
The method you use in your application to transfer the data from the FPGA to
the RT Host use the Front Panel Interactive Communication that write/read the
control/indicators of the FPGA VI. This method provides also risk of Race
Condition and use uP resources.
To avoid errors in data caused by race conditions and use less processor resources,
I suggest you to rewrite this part of your application with the method
DMA transfer from FPGA to Host.
You will find some good tutorial at the following address.
What
is the Best Method For Synchronizing a LabVIEW FPGA and a Host Interface VI?
Best Regards,
Nick_CH

Ethernet communication with NI9149

Hi everyone,
I would like to create a rugged system by interconnecting several units by means of Ethernet for a measurement and control application. My question is if I can connect NI9149 chassis over the ethernet directly for control and communication with the modules attached to the chasis and application or is required an additional ethernet controller for each unit. The application is created in Measurement Studio. The system diagram is presented in attached file. Thanks.
Attachments:
Untitled.png ‏26 KB

The 9149 gives you direct access to I/O using a technology called shared variables, which should be accessible from measurement studio. Shared variables are a peer-to-peer protocol meaning you just need to connect the 9149 to your network and you should be able to get data.
However, shared variables are lossy and have a maximum rate -- I've seen something on the order of about 50-100 Hz update rates mentioned in various locations, although performance will be application and network specific. If you need faster performance you will have to use a FIFO (allowing you to stream data) and you will have to program the FPGA using the LabVIEW FPGA module. I believe you should be able to interface with the FPGA but it will require using the LabVIEW FPGA C interface and you must be able to call the dll from measurement studio. There may be an easier mechanism I am unaware of.
You may also consider ethercat for your application which does require a separate real-time host but is also a faster protocol. A good comparison of options is here: http://www.ni.com/white-paper/14151/en/

Sir i am using datasocket read ,i am communicating with java but my problem is that bcz im using while loop to see if value has changed my labview consumes all the processors time ,sir i want a event like thing so that while loop is not in continuous loop

sir i have given lot of effort but i am not able to solve my problem either with notifiers or with occurence fn,probably i do not know how to use these synchronisation tools.

sir i am using datasocket read ,i am communicating with java but my problem is that bcz im using while loop to see if value has changed my labview consumes all the processors time ,sir i want a event like thing so that while loop is not in continuous loopHi Sam,
I want to pass along a couple of tips that will get you more and better response on this list.
1) There is an un-written rule that says more "stars" is better than just one star. Giving a one star rating will probably eliminate that responder from individuals that are willing to anser your question.
2) If someone gives you an answer that meets your needs, reply to that answer and say that it worked.
3) If someone suggests that you look at an example, DO IT! LV comes with a wonderful set of examples that demonstate almost all of the core functionality of LV. Familiarity with all of the LV examples will get you through about 80% of the Certified LabVIEW Developer exam.
4) If you have a question first search the examples for something tha
t may help you. If you can not find an example that is exactly what you want, find one that is close and post a question along the lines of "I want to do something similar to example X, how can I modify it to do Y".
5) Some of the greatest LabVIEW minds offer there services and advice for free on this exchange. If you treat them good, they can get you through almost every challenge that can be encountered in LV.
6) If English is not your native language, post your question in the language you favor. There is probably someone around that can help. "We're big, we're bad, we're international!"
Trying to help,
Welcome to the forum!
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

I get an error message when trying to install windows 7 on my macbook pro. The message says "windows has encountered a problem communicating with a device connected to your computer. I don't have anything connected to my computer. How do I fix this?

I'm trying to install windows 7 on my macbook pro. I went through the process of bootcamp telling it to install windows 7. Once the windows boot manager started an error message came up. The error message says " windows has encountered a problem communicating with a device connected to your computer. I don't have a usb connected to my computer. I am using windows 7 professional install disc. I can't figure out what i am doing wrong. The same message keeps coming up over and over. Am I doing something wrong or is it something else?

Well, shucks, i just spent almost 30 minutes trying to find your model user guide to explain it better, I guess they never got around to making it.....
I would just borrow another Windows disk and try installing it again and if it does it again then you might take it to an Apple Store and see if one of the "Genius' " can figure it out.
Make sure your internet is enabled and click on your blank desktop and at the top of your screen is a Help menu option, enter PRAM and it should give you a list of things relating to Pram. It may take a few seconds to list anything as it has to connect to Apples severs first. It should list the things you may have to fill back in when your done.
"P-ram" stores some common information that is used in the background, your date, time, startup disk, etc, that you don't have to re-fill when you restart, it's a little different for each computer.

"The software required for communicating with the iPod is not installed..."

I realize my explanation of my problem is long-winded, so if you want a shortened version, here it is:
I've followed all the instructions trying nearly everything, and no matter what I do, iTunes gives me the error saying: "The software required for communicating with the iPod is not installed correctly. Please reinstall iTunes to install the iPod's software." My G5 iPod (60GB) works on two other computers (both without any music on them), so I assume there something wrong with my computer and not the iPod itself.
Now for the long-winded story of the last eight hours of my life...
I just got the Generation-5 iPod Video (60GB) a today and I'm having problems already. I followed the instructions and installed the iPod software and then plugged in my iPod (iTunes has been on my computer for a while now). I was expecting iTunes to open after plugging in the iPod, but my device manager only detected and installed "a new device". I manually opened iTunes and got an error saying: "The software required for communicating with the iPod is not installed correctly. Please reinstall iTunes to install the iPod's software."
After re-installing the iPod software and iTunes, and restarting my computer countless times, I came looking for help here. I found this page, which seemed to outline my problem exactly. My computer recognizes the iPod as a drive, but iTunes won't have anything to do with it. I have all the symptoms outlined in the heading, so I hoped to solve my problem there. I followed the instructions step-by-step, and after the final restart, I open iTunes to get the same exact error message.
I decided to determine whether there was a problem with my iPod or if it was my computer. I plugged my iPod into my uncles's powerbook, and got to the point where I can name and configure my iPod. I expected it to work flawlessly on a Mac (which it did) but there is no way for me to continue using a Mac (after tomorrow) for my iPod. This formatted the iPod for a Mac, so I went to another (different from the original) Windows computer, clean of any iTunes and iPod software, and followed the instructions exactly as they're supposed to be followed. After the installations, I plugged in my iPod, and although iTunes didn't open, I was able to format back to Windows and name my iPod (a step in the right direction). I should note that my (anti-iPod) computer is a Windows XP Pro, and the working one is Windows XP Home Edition. This was all well and good, until I remembered there was no music on this computer. So my iPod is completely working there, but there isn't anything I can do with it.
Next, I came back here and browsed around the discussion boards, hoping to find somebody with a similar problem to mine. There seems to be alot of errors concerning iTunes not recognizing the iPod, but none of the solutions I tried worked for me, including changing the drive letter. I get the "iPod Service Error" while trying to restore to factory settings through iPod updater.
Of course, I could transfer all 32GB of music from one computer to another, but the second (working) computer isn't mine and I won't have access to it in a couple months. It would be most convenient if I could get my iPod working on my own computer. Any help would be appreciated, especially from somebody who has solved this problem or know how to solve this problem.
P.S.
Here are some other minor details that my be important, but I didn't feel they were worth including.
- My brother has his iPod mini set up on my computer, under a different user login. He gets the same error once in a while, but re-installing iTunes always solves the problem for him. I had him try solving my problem his way, but nothing worked for him either.
- My computer is an AMD Athlon 64 Processor 3200+, 512MB RAM with Windows XP Pro SP2 installed. My internal hard drive is partitioned, using the letters C, D and H (C being my system files, D used for recovery files and H for my applications and games). My E drive is used as a DVD/CD-ROM Drive, and drives F and G are reserved for virtual drives (none have been running during this entire ordeal). My external hard drive uses the letter I, and I manually set my iPod to use the letter J (I've never used 'J' for anything else before).
- Yes, I have downloaded and installed the latest versions of iTunes and the iPod software.
- I'm assuming there is a problem with my computer and not my iPod, since it worked on both other computers I tried. I'm hoping it's as simple as changing a registry file or cleaning out (yet another) temp directory.

Solution to "Software required for communicating with the iPod is not installed"!
I battled this same problem for about 5 hours. Going through re-installations, the "5 R's", all these discussion boards. Nothing worked.
The problem is that iPodService was repeatedly crashing after minute or so. You can verify this by hitting Ctrl-Alt-Delete and noting that iPodService is missing from the process list (sort by image name), or by right-clicking on My Computer and selecting "Manage", then going to Services and checking out the IPodService service - if it gives you the option to "Start", then it's not running.
Here is what worked.
1. De-install iTunes and iPod (if you have the updater installed) completely by going to Start --> Control Panel --> Add/Remove Programs. Also delete the C:\Program Files\iTunes and c:\Progam Files\iPod\bin directories. (Don't worry, this doesn't affect your saved music files.)
2. Log in as an Administrator
3. Go into the registry (note this is dangerous - you should be careful) and remove the iPod entries that the uninstaller misses.
3.1 Go to Start menu --> Run.
3.2 Type in "regedit".
3.3 Go to HKEYCLASSESROOT --> IPodService.iPodManager.
There are two keys here, iPodManager and iPodManager.1. In my case, I did not have permission to view either of these. I think this is the root cause of the problem. I think the installer can't properly update these because it doesn't have permission. So you need to change the permissions:
3.4 Right-click on IPodService.IPodManager
3.4.1 Select "Permissions..." A warning will appear saying you don't have permission, but that you can change permissions.
3.4.2 On the window that launches, click on "Advanced..."
3.4.3 Click on the "Owner" tab.
3.4.4 Select a valid account (the one you're logged in under) under "Change Owner To".
3.4.5 Hit "OK".
3.4.6 Back on the main Permissions window, hit Add and add the same account as a valid user.
3.4.6.1 Where it says "Enter the object names to select", type in the account name, e.g. "Smith".
3.4.7 Click on the "Allow" checkboxes for "Full Control" and "Read".
3.4.8 Hit "OK".
3.5 Repeat procedure for the "iPodManager.1" key.
3.6 Now right-click and delete both of these keys.
I think that's all that's required, but I also searched through the registry and deleted the following keys.
4. Other keys I deleted:
4.1 HKEYCLASSESROOT --> IPodManager.IPodManagerUI.1
4.2 HKEYLOCALMACHINE --> SOFTWARE --> Apple Computer Inc. --> iPod
I think that's all I deleted, but I'm not positive. I seached for instances of "ipod" using the Find... and Find Next functions under the Edit menu.
5. Exit out of the registry editor.
6. Re-install iTunes. I re-installed iTunes and reconnected the iPod, and everything worked.
I want to repeat that editing the registry can completely mess up your computer if you modify the wrong things, so only do this if you're comfortable, and be extremely careful.
Hopefully this helps!
Apple support people: assuming this works, please add it to your solutions page, and feel free to reimburse me for spending half of Christmas figuring this out.
Mark

I get an error message when trying to sign into the support community with another Apple id. On the pick a username screen I get "an account utilizing this address already exists...." despite trying a few usernames. Anyone know how I can resolve this?

I get an error message when trying to sign into the support community with another Apple id. On the <pick a username> screen I get "an account utilizing this address already exists.Only one account per email address is allowed on the Apple Support Communities" despite trying a few usernames. Anyone know how I can resolve this?

This problem has been driving me demented. The instructions that Ivan gives have partially worked for me. By following his link
"How to find out if you have multiple Apple IDs" I was able to identify that yes I did have two apple accounts using the same e mail address. One was very old that I used to use for the forum boards and one is my much more recent ID that I use for everything these days. So I changed the e mail address for the old account which is associated with these discussion boards and that's the account that I am now posting this from. However even though the two accounts now have different e mail addresses when I try to log onto the boards with my more recent main apple ID I still get all the same errors as described at the start of this thread by rodgers_j. And of course that's the one I want to use so that I only have one itunes account for everything.
So if anyone has any more hints I'd be very grateful.

There is a problem communicating with the printer.

I have a Lexmark Interpret S405. I am using a MBP laptop with WiFi, running 10.5.8. I have a cabled (non-wifi) Linsys router. I am using an Airport Express.
I was finally able to get the WiFi light on the Lexmark to be static green after reinstalling the Lexmark WiFi setup and reconfiguring my Airport settings so that both the computer and printer see each other.
In fact, I even updated the driver from Lexmark's Web site last night and I watched the WiFi light on the printer blink green indicating that the installation of the driver update was being communicated to the printer.
However, when I print, it opens the print window and says first "Looking for S300-S400", then it says "Printer is now online". Then after about 10 seconds, I get this error: "There is a problem communicating with the printer. Make sure the printer is powered on and connected to the computer. Delete or hold the job and try again."
I've exhausted Lexmark's technical databases and couldn't find the answer here.
I've read that one possible solution was to delete all the printers from the "Print & Fax" system preferences window and re-add. That didn't work.
Lexmark says for: The printer communicating on a network; however, the printer is not responsive. Possible causes could be:
1. Your printer is associated with a network, router, or access point, but it is not your network.
2. A software process is blocked by a system security firewall preventing network communication.
3. You are logged into Virtual Private Network (VPN).
4. You are connected to a network but have decided to switch to a USB connection.
I don't have a VPN and have removed the USB cable, then restarted both printer and computer, and deleted printers in Sys Prefs, restarted, and still no solution.
I can print directly via USB cable, but want to print wirelessly.
Lexmark also says to enter my PIN (which I have pulled out from the print menu screen on the printer) in the System. That tells me a lot...
Network settings on the print window on the printer also tell me Signal strength is 5 (excellent) and that I am on the network my airport is on.
Message was edited by: Macman17

I bet this is too late but...
Are you trying to print through the airport express wirelessly or the built in wireless of the lexmark? If you want to use the airport express, there is no need to mess with the wireless printing on the lexmark at all. The airport express will be easy to set up, all the wireless setups through the printers are a pain.

ITunes Seem to Have Suddenly Stopped Communicating With the CD/DVD Burner

Hello, I wonder if anybody can help - my itunes application seems to have suddenly stopped communicating with my laptop's cd/dvd burner
(Generic Name (E: H - T-S D D A S - 20N ATA Device)).
About 2 years ago, I have experienced a similar problem, but was able to resolve it by downloading 64-bit compatible GEAR drivers to my system. However, the problem has re-appeared when I have updated to iTunes Version 10.1. Funny enough, the cd/dvd burner started getting recognized again when I updated to iTunes Version 10.2, but halfway through me burning a large playlist to multiple cds has suddenly stopped recognizing the cd/dvd burner again, and has never "resolved itself" ever since.
I have tried multiple approaches to solving this issue, including completely re-installing itunes software and completely re-installing GEAR drivers, but nothing works. I have even tried uninstalling GEAR drivers completely, as I read that it worked for someone on one of the similar forums, but that didn't work either.
My itunes diagnostics runs all the points of the cd/dvd drive check successfully, except for the last point (Can Not Read Audio CD). Here's what the diagnostics summary looks like:
Microsoft Windows Vista x64 x64 Home Premium Edition Service Pack 2 (Build 6002)
Hewlett-Packard HP Pavilion dv9700 Notebook PC
iTunes 10.2.1.1
QuickTime 7.6.9
FairPlay 1.11.16
Apple Application Support 1.5
iPod Updater Library 10.0d2
CD Driver 2.2.0.1
CD Driver DLL 2.1.1.1
Apple Mobile Device 3.4.0.25
Apple Mobile Device Driver not found.
Bonjour 2.0.4.0 (214.3)
Gracenote SDK 1.8.2.457
Gracenote MusicID 1.8.2.89
Gracenote Submit 1.8.2.123
Gracenote DSP 1.8.2.34
iTunes Serial Number 0016AB580A7B0C28
Current user is not an administrator.
The current local date and time is 2011-04-14 17:52:25.
iTunes is not running in safe mode.
WebKit accelerated compositing is enabled.
HDCP is not supported.
Core Media is supported.
Video Display Information
NVIDIA, NVIDIA GeForce 7150M / nForce 630M
** External Plug-ins Information **
No external plug-ins installed.
The drive F: Motorola MB810 Rev 0001 is a USB 2 device.
iPodService 10.2.1.1 (x64) is currently running.
iTunesHelper 10.2.1.1 is currently running.
Apple Mobile Device service 3.3.0.0 is currently running.
** CD/DVD Drive Tests **
No drivers in LowerFilters.
UpperFilters: GEARAspiWDM (2.2.0.1),
E: H-T-S DDA
S_-20N, Rev W_05
Audio CD in drive.
Found 1 songs on CD, playing time 255:08 on Audio CD.
Track 1, start time 00:02:00
Audio CD reading failed. Error Code: 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 0 0 0 0.
iTunes cannot play or import music from a CD in this drive. The drive may need a firmware update. Check with the manufacturer.
Get drive speed succeeded.
The drive CDR speeds are: 3 9 16 24.
The drive CDRW speeds are: 3.
The drive DVDR speeds are: 3.
The drive DVDRW speeds are: 3.
Error Correction is turned on for importing audio CDs.
I have noticed that the diagnostics summary containes a suggestion to update firmware of my laptop's cd/dvd drive, but currently there are no such firmware updates available.
Another frustrating issue that I ran into was trying to convey this issue to Apple Technical Support via e-mail using the Express Lane for the troubleshooting issues. I really fail to understand why I am being asked for the "hardware serial number" when I'm clearly choosing the categories for "iTunes/CD-DVD Import Issues" which are software, not hardware, categories! This prevents me from being able to simply send the description of my problem to the correct Apple Support department, and does not let me do that even when I enter my itunes' Serial Number, which can be found in the diagnostics summary provided above.
Much Thanks to anyone who can provide any kind of helpful advice, even if it's just on how to be able to convey this problem to Apple Support via e-mail!

Okay ... checking something else:
Current user is not an administrator
Is that true? Or do you in fact have a Windows user account with full administrative rights?
(It's possible that a permission may have gone astray in your usual user account, which might be causing the burning issues.)

SOLUTION to "Software required for communicating with the iPod is not insta

Folks, I can not take credit for this.....you should send your checks to MarkinMadison. I've included his post in it's entirety. For me, this was the Holy Grail !!
My only comment is make sure when you are in the registry that you hit the "apply" button to change and add things.
This probably won't solve everyone's problem but it clearly solved mine (and I tried all other "solutions"), as well as Mark's.
Apple: please find out who MarkinMadison is and either cut him a big check or offer him free Ipods for life.
"Solution to "Software required for communicating with the iPod is not installed"!
I battled this same problem for about 5 hours. Going through re-installations, the "5 R's", all these discussion boards. Nothing worked.
The problem is that iPodService was repeatedly crashing after minute or so. You can verify this by hitting Ctrl-Alt-Delete and noting that iPodService is missing from the process list (sort by image name), or by right-clicking on My Computer and selecting "Manage", then going to Services and checking out the IPodService service - if it gives you the option to "Start", then it's not running.
Here is what worked.
1. De-install iTunes and iPod (if you have the updater installed) completely by going to Start --> Control Panel --> Add/Remove Programs. Also delete the C:\Program Files\iTunes and c:\Progam Files\iPod\bin directories. (Don't worry, this doesn't affect your saved music files.)
2. Log in as an Administrator
3. Go into the registry (note this is dangerous - you should be careful) and remove the iPod entries that the uninstaller misses.
3.1 Go to Start menu --> Run.
3.2 Type in "regedit".
3.3 Go to HKEYCLASSESROOT --> IPodService.iPodManager.
There are two keys here, iPodManager and iPodManager.1. In my case, I did not have permission to view either of these. I think this is the root cause of the problem. I think the installer can't properly update these because it doesn't have permission. So you need to change the permissions:
3.4 Right-click on IPodService.IPodManager
3.4.1 Select "Permissions..." A warning will appear saying you don't have permission, but that you can change permissions.
3.4.2 On the window that launches, click on "Advanced..."
3.4.3 Click on the "Owner" tab.
3.4.4 Select a valid account (the one you're logged in under) under "Change Owner To".
3.4.5 Click the checkbox that says: "Replace owner on subcontainers and objects."
3.4.5 Hit "OK".
3.4.6 Back on the main Permissions window, hit Add and add the same account as a valid user.
3.4.6.1 Where it says "Enter the object names to select", type in the account name, e.g. "Smith".
3.4.7 Click on the "Allow" checkboxes for "Full Control" and "Read".
3.4.8 Hit "OK".
3.5 Repeat procedure for the "iPodManager.1" key.
3.6 Now right-click and delete both of these keys.
3.7 If you can't delete, you might need to open up the keys and repeat the procedure on the sub-keys.
4. Exit out of the registry editor.
5. Re-install iTunes. I re-installed iTunes and reconnected the iPod, and everything worked.
I want to repeat that editing the registry can completely mess up your computer if you modify the wrong things, so only do this if you're comfortable, and be extremely careful.
Hopefully this helps!
Apple support people: assuming this works, please add it to your solutions page, and feel free to reimburse me for spending half of Christmas figuring this out.
Mark"
Dimension 4600 Windows XP

I have also posted the same question, earlier today. I purchased two for my children and cannot get the iPod to communicate with the computer. I have the iTunes software on my system, but during the installation process I cannot click the NEXT button, once I plug the iPod cable in. The computer does not detect it. I have tried all 6 USB 2.0 ports. I even removed the Dell Jukebox and MusicMatch programs. I am not a computer savvy person - just a mom who wants to give these to my children for Christmas. This is the first "chat" site I have even registered on. I am so very frustrated. Hopefully, this can be resolved.

"An error occurred in the communication with the BW server"

Hi, when I open BEx Analyzer and try to connect to my BW server to run a query, I get this message, "An error occurred in the communication with the BW server".
Can someone help me.
thanks
Pat.

If it's happening consistently, it could be a problem with your local m/cs MS office and/or SAP GUI.
If it was working before:
1) Uninstall SAP GUI and MS office.
2) Install MS Office and SAP GUI...then try to connect to BW.
Good luck, BB

Error in Communicating with DCA Server

Hi,
I have Cisco LMS 2.6 and next modules:
1. CiscoWorks Common Services 3.0.6
2. Campus Manager 4.0.13
3. CiscoView 6.1.5
4. Device Fault Manager 2.0.13
5. Internetwork Performance Monitor 2.6.0
6. Integration Utility 1.6.0
7. Resource Manager Essentials 4.0.6
Windows Server 2003 SE SP2
I have some problems:
1)
When I try enter to Device and Credentials I get message "Error in communicating with DCA Server.
DCA Server may be down. Please start the DCA Server and then refresh the page."
I try to restart CiscoWorks Daemon Manager over Services.
I cannot get information a lot of time from command "pdshow". Only black screen on the window CMD.
Or I get error
C:\Documents and Settings\zykov>pdshow
ERROR: GetReply failed:
ERROR: Daemon Manager startup in progress. Please wait.
dcr.log
[ Чт фев 18 16:51:28 YEKT 2010 ] [Ajp13Processor[9009][4]] FATAL com.cisco.nm.dcr.DCRProxy - Error in Communication to DCRServer , Reason :DCRException ID - -202 : CSTM Error Code [-1] CSTM Comm Type [0] - Unknown exception before invocation
[ Чт фев 18 20:32:35 YEKT 2010 ] [Ajp13Processor[9009][3]] FATAL com.cisco.nm.dcr.DCRDatabaseAccess - Severe error in DCRDatabaseAccess initialization - JZ00L: Login failed. Examine the SQLWarnings chained to this exception for the reason(s). 0 JZ00L
[ Чт фев 18 20:32:35 YEKT 2010 ] [Ajp13Processor[9009][3]] FATAL com.cisco.nm.dcr.DCRSystem - Unable to Instantiate DCRDataManagement ObjectJZ00L: Login failed. Examine the SQLWarnings chained to this exception for the reason(s).
java.sql.SQLException: JZ00L: Login failed. Examine the SQLWarnings chained to this exception for the reason(s).
DCRServer.log
[ Thu Feb 18 21:10:41 YEKT 2010 ] Starting DCR Server...
[ Thu Feb 18 21:10:43 YEKT 2010 ] No restore has happened
dcrclient.log
[ Чт фев 18 20:50:49 YEKT 2010 ] [Ajp13Processor[9009][5]] FATAL com.cisco.nm.dcr.DCRProxy - Error in Communication to DCRServer , Reason :DCRException ID - -202 : CSTM Error Code [-1] CSTM Comm Type [0] - Unknown exception before invocation
2) When I run Alerts and Activites I get error "An exception occurred. Please check the AAD.log file for further details."
AAD.log
18-фев-2010|21:30:10.291|ERROR|AAD|Ajp13Processor[9009][3]|AFDLaunchAction|perform|.|Error in calling getPartitionNamePMServercom.cisco.nm.xms.ctm.common.CTMException: Read timed out/Error in received response Connection reset
3) On the window Home of Common Services I have message "JRM server is down or inaccessible for this user"
I try reinstall last modules Campus Manager 4.0.13,
Device Fault Manager 2.0.13,
CiscoWorks Common Services 3.0.6.
But it cannot help me.
I think that this problems related. Yesterday all works correctly.
Thank you for your help.

You are right the problem was related with antivirus.
After removal antivirus DCA Server started successfully.
Remains the question as to be without an antivirus program?
Also remains a problem in the window Alerts and Activites.
When I click on the Device Name field (for some devices) does not open Detailed Device View.
The window closes immediately after opening.

I2C communication with FPGA

Similar Messages

Maybe you are looking for