Having problem triggering an external device needing 5V DC

I am having a problem throwing open a solenoid valve with 5 volts DC. The valve requires 5V DC, and it seems that I am getting a response from an LED on the valve, but the valve will not open. When I attach the valve to a 5V battery, the valve has no problem, and the LED has a stronger intensity to it. I am using Visual Basic to program the valve switching event with a 6024E card and CB-68LP board. Also, would it matter if this were a pulsed DC voltage as opposed to a constant DC voltage?

The most probable reason for this behaviour is that the solenoid valve requires too much current to switch. Daq cards are limited in the available current, so you will probably have to use an auxiliary switch and a separate power supplier to drive the solenoid.
Roberto
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I just updated my latest java but the update is causing problems with some externale devices. So i would like to uninstall this latest java update and get back the previous one. That should solve to problems with my external device

i just updated my latest java but the update is causing problems with some external devices. So i would like to uninstall this latest java update and get back the previous one. That should solve to problems with my external device.
Is this possible and how do i do that?
Anyone who responds thanks for that!
Juko
I am running
Hardware Overview:
Model Name:          Mac Pro
Model Identifier:          MacPro1,1
Processor Name:          Dual-Core Intel Xeon
Processor Speed:          2,66 GHz
Number of Processors:          2
Total Number of Cores:          4
L2 Cache (per Processor):          4 MB
Memory:          6 GB
Bus Speed:          1,33 GHz
Boot ROM Version:          MP11.005D.B00
SMC Version (system):          1.7f10
Serial Number (system):          CK7XXXXXXGP
Hardware UUID:          00000000-0000-1000-8000-0017F20F82F0
System Software Overview:
System Version:          Mac OS X 10.7.5 (11G63)
Kernel Version:          Darwin 11.4.2
Boot Volume:          Macintosh HD(2)
Boot Mode:          Normal
Computer Name:          Mac Pro van Juko de Vries
User Name:          Juko de Vries (jukodevries)
Secure Virtual Memory:          Enabled
64-bit Kernel and Extensions:          No
Time since boot:          11 days 20:39
Message was edited by Host

Java 6 you can't as Apple maintains it, and Java 7 you could if you uninstall it and Oracle provides the earlier version which they likely won't his last update fixed 37 remote exploits.
Java broken some software here and there, all you'll have to do is wait for a update from the other parties.

Problem with Logic/external HardDisk - NEED HELP!

Hi Everybody
I've got a big problem with my Logic Projects. I am recording Songs with my band and it's all 24bit, 96 KHz. With more than about 20 Tracks playing simultaneously, Logic shows an error that the disk is too slow.
For all the Audio stuff, I am using an external LaCie HardDisk, 250GB, FW800. Buffers are on the highest setting in Logic, and the "Larger Disk Buffer" Option is turned on.
In the Terminal, I watched the Disk usage by typing "top -d", and with 20 Tracks playing, it shows a Disk read of about 6000KB/s. This is well within the FW800 Standard! When I copy a file from that HardDisk to another one, Terminal shows a disk read of about 25'000KB/s, so nothing seems to be wrong with the disk itself. I guess it must be a Logic problem.
Can anybody help me or does anyone have the same problem? Any help is greatly appreciated... Thanks!
(I am using Logic Pro 7.1.1)
Message was edited by: bollo.sh

Hello,
This is something I have experience with. If you want to you can go here to see my full set-up.
www.KenosisStudios.com
I am in a pro scenerio where I often need and use 50-60 tracks simult. at 24/96khz. I used to use a Glyph rack with 7200rpm drives and when I started out I spent unreal time on the phone with Emagic, Apple, Sweetwater, and Glyph tech support to try every option of getting ProTools HD results out of my track count. I am no tech guru, so don't live by my words alone, but my personal experience states the following;
I tried raiding the drives, splitting tracks to seperate drives for playback, you name it. The bottom line is this, your problem is not, as you know, with the bandwidth of your bus. It is the speed of your drives. Were you to have 10krpm or 15krpm drives you would immediately see a difference. Yes bandwidth and all sorts of techy stuff comes into play, but by and large this is what you need to address.
What I ended up doing was this- I started using the outboard drive for back-ups and other outboard drives for my sample libraries. I installed in the G5 second drive slot a 7200rpm Seagate Sata drive and strictly track just to it.
Doing this alone got my track count to the 50-60track, 24/96khz scenerio I use today.
My advise, depending on how big you need the drive to be, do the research on what 10krpm and 15krpm internal Sata drives are dependable and go with that. Of course the faster the rpm the smaller the drive, so just look at a good balance for your situation. If you must go external, again, the faster the better, and going Sata will do you better than FW, etc.
I hope this is of use to you.

Having problem with calling external javascript functions in LV

Hi,
I found this VI: http://lavag.org/topic/10304-discuss-calling-external-javascript/, which I believe can be really helpful for my work. The problem is I can't get it to run based on the following problem:
- Apparently the "ScriptControl" cannot be loaded
I am using LabView 8.6, and this vi has been produced in a 8.0 version. Do you think this is the problem? If not, what could cause this problem running this VI?
Thanks,
Diogo

Hi,
To start I am using this examplo from the google code page.
<!DOCTYPE html "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>Google Maps JavaScript API Example</title>
<script src="http://maps.google.com/maps?file=api&v=2&key=abcdefg&sensor=true_or_false"
type="text/javascript"></script>
<script type="text/javascript">
function initialize() {
if (GBrowserIsCompatible()) {
var map = new GMap2(document.getElementById("map_canvas"));
map.setCenter(new GLatLng(37.4419, -122.1419), 13);
map.setUIToDefault();
</script>
</head>
<body onload="initialize()" onunload="GUnload()">
<div id="map_canvas" style="width: 500px; height: 300px"></div>
</body>
</html>
It loads a basic map, and is saved in a html file created for example in Notepad. Basically as I said the VI is very simple, see next image.
But like I said, this strategy does not allow labview to interface dinamically with the javasscript code in the html file. Doing it this way, I would have to constantly update the code in the file with new coordinates and loading the map again. This causes the mentioned flickering problem that I also had with static maps.
Diogo

I'm having problems repairing an external disk on Leopard

I'm running Mac OS X 10.5.2 on a PowerMac G5 and I have an external Maxtor OneTouch III 1-Terabyte drive that I use for Time Machine. I noticed that the drive didn't mount when I powered up. I ran Disk Utility and tried to Verify the disk. It reported "Invalid node structure" upon verify. I tried to repair the disk and I got:
Invalid node structure
Rebuilding Catalog B-tree.
The volume Backup could not be repaired
Error: Filesystem verify or repair failed.
I would like to run fsck on it, but how do I tell what the device name is? How can I turn a Connection ID shown in Disk Utility into a /dev/rdisk#s# device that I can give to fsck?
.... time passes ......
Okay, well never mind. I used "pdisk -l" to find the unmounted disk and also figured out which partition contained the filesystem. I ran fsck_hfs on the raw disk partition and got this:
$ fsck_hfs /dev/rdisk12s10
** /dev/rdisk12s10
** Checking Journaled HFS Plus volume.
** Checking Extents Overflow file.
** Checking Catalog file.
Invalid node structure
(4, 27990)
** Rebuilding Catalog B-tree.
Invalid record count
(4, 21605)
Invalid record count
(4, 21606)
Invalid record count
(4, 22719)
Invalid record count
(4, 22720)
** The volume Backup could not be repaired.
I'm not sure what to try next. Anyone know of a disk repair utility that might at least get farther than fsck? I noticed that the man page said that fsck sometimes can't repair the disk.
Any pointers or tips would be appreciated. Thanks!
Message was edited by: kae

kae wrote:
I'm running Mac OS X 10.5.2 on a PowerMac G5 and I have an external Maxtor OneTouch III 1-Terabyte drive that I use for Time Machine. I noticed that the drive didn't mount when I powered up. I ran Disk Utility and tried to Verify the disk. It reported "Invalid node structure" upon verify. I tried to repair the disk and I got:
Invalid node structure
Rebuilding Catalog B-tree.
The volume Backup could not be repaired
Error: Filesystem verify or repair failed.
I would like to run fsck on it, but how do I tell what the device name is? How can I turn a Connection ID shown in Disk Utility into a /dev/rdisk#s# device that I can give to fsck?
.... time passes ......
Okay, well never mind. I used "pdisk -l" to find the unmounted disk and also figured out which partition contained the filesystem. I ran fsck_hfs on the raw disk partition and got this:
$ fsck_hfs /dev/rdisk12s10
** /dev/rdisk12s10
** Checking Journaled HFS Plus volume.
** Checking Extents Overflow file.
** Checking Catalog file.
Invalid node structure
(4, 27990)
** Rebuilding Catalog B-tree.
Invalid record count
(4, 21605)
Invalid record count
(4, 21606)
Invalid record count
(4, 22719)
Invalid record count
(4, 22720)
** The volume Backup could not be repaired.
I'm not sure what to try next. Anyone know of a disk repair utility that might at least get farther than fsck? I noticed that the man page said that fsck sometimes can't repair the disk.
Any pointers or tips would be appreciated. Thanks!
Message was edited by: kae
It could be a hosed drive. Sure sounds like one.
i would suggest running fsck_hfs on it although some might say it does not matter.
fsck_hfs is supposed to be the correct fsck for the hfs file structure.
http://developer.apple.com/documentation/Darwin/Reference/ManPages/man8/fsck_hfs .8.html
You might also invest in DiskWarrior as a repair tool
If you cannot repair the filesystem, then immediately get another drive for TM to backup your system so you have something to fall back on.
Copy whatever you can from your Maxtor and then erase it, repartition it and see if it works OK.
There is some question about Maxtor's reliability. i prefer LaCie.

Having problem with X-fi drive need a he

I purchased X-fi Fatality platinum. . I've installed the sound card and X-Fi I/O Dri've on my computer but in the control panal / sound / recording, I don't see the inputs from the dri've. I see the Line in/ mic in from the audio card, but I don't see Line in 2/ mic in 2 from the dri've. I can hear the sound from the inputs on the dri've but becasue those inputs of the dri've does not show on control panal, I cannot select them as a default for recording.
is my dri've not installed correctely? or is there other options?
please help.... I've been struggling with this for two whole days.Message Edited by iccc00 on 0-4-200806:30 PM

First install the Audiodriver from the CD. Then update your drivers. I could not install the updated drivers directly without having the same problems.

Having problems with menu bar! NEED HELP

I'm having some serious problems with the finder menu bar. When I click on the blue apple, it won't show anything! It just highlights the blue apple without a pull down menu. Same goes for the Window pulldown menu. Also, under finder. when I click empty trash, or do the equivilent keyboard shortcut, it won't empty the trash. I have to ctrl click on the trashcan and empty it that way. Please help me fix my finder, or else I'm going to have to reformat and start ALL over which I really don't want to do. Thanks!
PS This is on a Dual 1.42GHZ G4 Tower w/ Radeon 9800 Pro graphics card and 2GB (4X512mb) ram. I also updated to 10.4.7 from 10.4.6 to see if that fixed the problem, and no dice! Thanks!

Well if the problem occurs in two accounts then it is systemic. When did the problem begin? Was it with a software update, sch as from 10.4.6 to .7? If so, try reapply the update using the Combo updater.
IF that doesn't work you can re-install 10.4 using the Archive and Install method, which does not wipe your disk, does not require reinstalling all your applications etc, However, BACK UP YOUR DATA FIRST, and read up on the A&I before you do it.
Hope this helps
Regards
TD

Zen Touch Firmware v0.0.8 Anyone? Having Problem in recovery mode and need to reload firmware

As stated in subject, i need a firmware for Zen Touch, for version v0.0.8... I know the firmware is old, but i'm STUCK in the recovery mode after the player hung... I didn't back my music up yet, so, anyone here can help me with this problem? Or is it any other firmware available that is suitable to be reloaded too? Help~~
Thanx,
Anfernee

anfernee0 wrote:Erm, are u 00% sure the data is safe if i reload wif latest firmware? coz as wat i know, the data will be gone if we UPGRADE the firmware... But if there's really no v0.0.8, i might do that already... anyway, thanx...
Not sure if this is addressed at me, but you can never guarantee 00% that a firmware upgrade will work. You should always keep a backup of important files on your player, which is common sense.

Having problem with trigger.(help needed)

HI all,
i m totally new to the PL/SQL.... hope someone can help me with this.....
i am now using trigger to block inserting into "attendance99" table when the record reach the maximum limit and insert the record to the "waiting_list" table.
The problem i face is by using RAISE_APPLICATION_ERROR, it will block the insertion to the "waiting_list" table as well.....
i had try to use only DBMS_OUTPUT.PUT_LINE instead but end up >>> inserting record into both table "attendance" and "waiting_list" tables.
CREATE OR REPLACE TRIGGER trig_attendance
Before insert on attendance99
referencing new as new
for each row
DECLARE
maxstud NUMBER(2);
currstud NUMBER(2);
Begin
SELECT COUNT(*) INTO currstud FROM attendance99 WHERE offering_id=:New.offering_id;
SELECT max_no_students INTO maxstud FROM offering WHERE offering_id=:New.offering_id;
IF currstud >= maxstud
THEN
insert_waitinglist(:New.offering_id, :New.student_id, :New.evaluation, :New.amount_paid);
RAISE_APPLICATION_ERROR (-20500, 'Sorry, this Offering ID has reach maximum students, you will be placed into waiting list!');
END IF;
END;
CREATE OR REPLACE PROCEDURE insert_waitinglist
(v_offeringid IN waiting_list.offering_id%TYPE,
v_studentid IN waiting_list.student_id%TYPE,
v_evaluation IN waiting_list.evaluation%TYPE,
v_amountpaid IN waiting_list.amount_paid%TYPE)
IS
BEGIN
     INSERT INTO waiting_list (offering_id, student_id, evaluation, amount_paid)
VALUES (v_offeringid, v_studentid, v_evaluation, v_amountpaid);
END insert_waitinglist;
-----------------------------------------------

SQL> create table a (x number);
Table created.
SQL> create table b (x number);
Table created.
SQL> ed
Wrote file afiedt.buf
1 create or replace procedure insert_b(x in number) is
2    pragma autonomous_transaction;
3 begin
4    insert into b values (x);
5    commit;
6* end;
SQL> /
Procedure created.
SQL> ed
Wrote file afiedt.buf
1 create or replace trigger trig_a
2 before insert on a
3 for each row
4 declare
5    v_cnt NUMBER;
6 begin
7    select count(*) into v_cnt from a;
8    if v_cnt >= 5 then
9      insert_b(:new.x);
10      raise_application_error(-20500, 'Limit exceeed. Inserted to B instead');
11    end if;
12* end;
13 /
Trigger created.
SQL> insert into a values (1);
1 row created.
SQL> insert into a values (2);
1 row created.
SQL> insert into a values (3);
1 row created.
SQL> insert into a values (4);
1 row created.
SQL> insert into a values (5);
1 row created.
SQL> insert into a values (6);
insert into a values (6)
ERROR at line 1:
ORA-20500: Limit exceeed. Inserted to B instead
ORA-06512: at "SCOTT.TRIG_A", line 7
ORA-04088: error during execution of trigger 'SCOTT.TRIG_A'
SQL> select * from a;
         X
         1
         2
         3
         4
         5
SQL> select * from b;
         X
         6
SQL>

I bought a mac computer 2011 from a guy at work but I'm having problems in app store in need to upgrade an app but it still has the old owners apple id and i can't change it what do i need to do?

cant take off the old owners username in the apps log in? what do i do?

WHat year/model Mac is it?
Based on the OS that it shipped with, the Mac, it's OS and the installed apps, such as iLife are all associated with the original owner's Apple ID. He was supposed to erase the Mac, reinstall the most recent version of the shipping OS and call Apple to request the Mac be disassociated from his Apple ID. You will have this type of issue until that has been done.

Is anyone else having problems syncing an external calendar app (Easy Calendar) with iCal using iCloud for syncing?

Prior to upgrading to Mavericks, I would use iTunes to sync my two calendar apps--Easy Calendar (from the app store) and the native iCal and of course, I would wind up with the same calendar events on both calendars after syncing. Since upgrading to Mavericks and--per Apple instructions, using iCloud to sync--I can't sync the two calendars. At this point, I'm thoroughly confused about where I can go to find/see a backup of my non-iCal calendar app that's on my iPhone. I'm beginning to think that if I don't use Apple's iCal, I can't back up or sync my calendar events using a non-native app such as Easy Calendar. Is that correct?

I, too, had long waiting times. Here's what worked for me.
As I went through some of my Pages and Numbers documents, I got warnings that there were sync discrepancies (differing versions in iCloud and on my iPads and laptop). So, I removed everything from iCloud Drive using my laptop (saved to local folder). I let my iPads sync so they removed all the iCloud-based documents. On the laptop I went through and forced everything to the latest file format (latest Pages and Numbers on Yosemite) by re-saving, then copied everything back into iCloud Drive. My iPads both updated within seconds and everything now syncs quickly.
Don't know if eliminating sync discrepancies is the solution, but it seems to have worked in my case. Hope it might help others.

Problem Finding External Device In Final Cut Pro 3 & OS 10.4

I upgraded our system from os 10.3 to 10.4. Now when we open Final Cut Pro 3 it can not find the external device. Anyone have any idea why and what we can do to rectify the problem? When I switch back to os 10.3 (Which I still had on a second internal hard drive) FCP3 has no problem finding the external device/camera.

The only other suggestion I have would be the Guiness Solution. (though if 10.3 can locate the external, this may/may not help). Essentially this procedure allows the FW port to 'reset'. It is very simple and painless as well.
Short version...
Shut everything down
Unplug everything
Go have a nap, Guiness, Harpoon, Cafe Colåda, Hot Chocolate, talk a walk...anything to occupy 15 minutes or so.
Come back and plug everything in
Turn on deck/camera first
Make sure System Profiler recognizes FW device (deck/camera)
Start FCP....Does it work now?
If you haven't already, you might trash prefs
http://www.digitalrebellion.com/pref_man.htm
and run Repair Disk, using Disk Utility.
I still wouldn't discount the QT possibility. Even though it worked before your upgrade to Tiger, the upgrade to Tiger, may have triggered something that is causing the issue.
K

I have an IMAc 5 with OS 10.6.8. I am having trouble doing a iDVD. Can I remove photos from iphoto to an external device to free up space on my computer? what do I need and how do I do it?

I have an IMAc 5 with OS 10.6.8. I am having trouble doing a iDVD. Can I move photos in iphoto to an external device to free up space on the computer? What do I need and how do I do it?

Hey William Dofflemyer,
Thanks for the question. I understand you would like to move some photos in your iPhoto library to free up space. The following article may help you with that:
iPhoto '11: Move your iPhoto library to a new location
http://support.apple.com/kb/PH2506
Also, I understand you have some questions about iDVD. The following video may provide more information:
Apple - Find Out How - Movies - iDVD ’08
http://www.apple.com/findouthow/movies/idvd.html
Thanks,
Matt M.

External device problem using HDV

i'm having trouble getting FCP 5 to recognize my external device (a canon HXA1) when i'm using HDV. works fine when i use DV and set the camera for DV, but when i try to send out HDV, the camera usually wont show on the "view > video playback" list. after multiple re-boots and selecting "refresh A/V devices" over and over the right kind of device will sometimes show up on the list, but its always greyed out and unselectable. anyone had this problem?
thanks -

you cannot "monitor" HDV via firewire in the same manner that you monitor DV, they are entirely different formats and it just doesn't work that way ... you can however monitor a DV downconvert of your HDV timeline via firewire if you are using FCP6
when you need to output back to tape you need to use the Print To Video method
(File > Print To Video)
... if you do need a monitoring solution then there are a number of solutions available such as a third party I/O card or Matrox MXO box

I am having problems rebooting my mid 2009 macbook pro (grey screen other issues), need help!

I am having problems rebooting, I have experienced the same problem as others with the grey screen but my case is a little different, It started with my mid 2009 macbook pro acting a little slower than normal, the screen would freeze, mouse wouldnt move and i'd be forced to "force reboot" this went on for a couple of days until i was tinkering with the wifi connection and it froze again. I had to reboot and this time i noticed that it took a long time to get to the login screen. i put in my password and it went into infinite load (i also tried the guest account and other accounts with same result). i tried rebooting again and the same thing would happen. after several reboots, the screen just stayed grey, sometimes with the apple logo and gear sometimes without it. Since its a 2009, (and for the most part, still works like a champ) i decided test the ram, i took one stick of ram out at a time to see if i could notice anything wrong with them. when i stuck just one in, the mac was still having the same problem rebooting. i pulled that ram and and stuck in the other and i noticed that this time the apple logo never appeard and a big crossed out circle appeared. figuring that the ram must be the problem, i ordered new ram and installed it. i noticed that when i rebooted for the first time with the new ram it was rather quick and took me straight to the login screen and i was able to log in with no problem. at this point i thought the problem was solved, but i noticed the macbook still acting funny. at first, none of my files appeared on my desktop or in the finder window. after about 20 minutes, everything magically popped up. i also noticed long pauses/freezes with the colored pin wheel spinnig. i closed the laptop and opened it again and the screen just stayed black. i tried rebooting again, and again i got the grey screen with no signs of being able to log in... i waited about 20 minutes and tried to reboot again and again i was able to log in, however the macbook is still acting slow and will freeze with no signs of unfreezing without a reboot.
my macbook is 5 years old and has plenty of miles on it, so i understand if the thing needs to be replaced alltogether but does anyone know what could be the issue? could the bad ram have corrupted the hard drive in anyway? would re-installing the OS fix it?? and if so, how would i do that if i downloaded mavericks from the app store? are there any other solutions to this problem?
all my files and what not are backed up on an external HD so theres nothing on it that i'd miss desperately if i had to whipe the hard drive but id really like to get her working again without any whiping of the HD. if anyone can help me out, it'd be greatly appreciated

It is very difficult to offer troubleshooting suggestions when the "os version" you are using is unknown as each os has their own troubleshooting solutions.
How large is your hard drive and how much hard drive space do you have left?

Having problem triggering an external device needing 5V DC

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