Is this a hardware interfering?
Hello,
I worte a program (please see in attachment) to acquire data by serial ports (RS232) from two instruments--one is a force sensor and another is a position sensor. When I connected those two instruments directly to my desktop by RS232, the data looked good. But when I connected those two instruments to USB ports on my laptop by RS232-USB adaptors, there was then a lot of noise for both data. Someone told me that it was due to the hardware interfering. Since I know little about hardware, could anyone please tell me if that really a hardware interfering or any problems with my code? Why it worked well on desktop and is there any way to fix it? Thanks a lot!
Solved!
Go to Solution.
Attachments:
Strain_Stress_Auto.vi 66 KB
Your code looks fine with one exception. You should convert the error terminals on the loop border to shift registers. That way, any error that happens will be propogated to the next loop. The way you have it, if an error occurs, it will be lost on the next loop iteration and you will never know about it.
You aren't the first person that has complained about USB to Serial converters messing up their program. The only suggestion I have is to go back to the serial port, or maybe buy another brand of USB-Serial converter.
Edit: Just noticed that you do not have any Wait funtion in your loop. This will cause 100% CPU usage, and this may be what is causing your problem because the OS doesn't have time to tend to the USB properly. This is just a guess. Put in a small delay (Wait function), say 10mS. See if that fixes your problem. Even if it doesn't, keep the delay in there.
- tbob
Inventor of the WORM Global
Similar Messages
-
I am most unhappy with your Lion 10.7.3 operating system that I installed on this MacBook:
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro5,4
Processor Name: Intel Core 2 Duo
Processor Speed: 2.53 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP53.00AC.B03
SMC Version (system): 1.49f2
Serial Number (system): W8******7XJ
Hardware UUID: ******
Sudden Motion Sensor:
State: Enabled
1. The scrolling, as far as I've been able to determine, is by using the slide bar to the right of most diplays. There are no up or down arrows that allow slow movement
2. The top and botton toolbars are not visible. The top one appears when you point the arrow to the top of the screen but the same doesn't work well if at all pointing the cursor to the bottom.
3. When downloading, something jumps to the upper right of the screen. I could point and click it and get a diplay if my downloads. I was attempting to fix some of the above. Now the little thing jumps off the screen and I can't get to it.
4I was trying to installMacBook Pro EFI Firmware Update 2.3. I got message it couldn't be installed on my system.
5. The red yellow and blue bullets that allow shutting down, minimizing and maximizing are missing on most open windows.
Can you do something about these problems
It's problematical that one can't communicate directly with Apple to resolve these problems
<Edited By Host>1: I'm scrolling this page right now using the arrow keys.
2: Press the escape (esc) key to exit full-screen mode. Select Apple menu > Dock > Turn Hiding Off.
3: ???
4: That's because you downloaded an update for another model.
5: See 2. -
My Ipad display is stuck on portrait mode. I tried the toggle switch, turning off and restart and just now backed up into Itunes and restored and still is stuck on portrait mode and it won't flip to landscape mode. Is this a hardware problem?
Has lock rotation been accidentally enabled within the control centre? If you swipe up the screen is there a circle with a lock symbol & if so is is greyed out or white - if white it is enabled.
-
I am trying to update an ipod version 2.2 with itunes but I keep getting an error (-1). Is this an hardware issue according to Apple and if so is there any way to fix this.?
Error 1 or -1
This may indicate a hardware issue with your device. Follow Troubleshooting security software issues, and restore your device on a different known-good computer. If the errors persist on another computer, the device may need service.
If you disabled yuor computer's security software then that indicates a hardware problem,
I would say it is not workth fixint your old. likely a 1G. iPOd. -
My IPhone 6 128GB with current software using AT&T is dropping 5-10 calls a day. I am calling from an office with good signal strength and in the same location as i did with my 5S which almost never had dropped calls. Is this a hardware or software issue? Is this a common issue with the new IPhones?
Hi jackneedshelp,
Thanks for visiting Apple Support Communities.
If calls are not going through on your iPhone 6, I recommend going through the troubleshooting method found at this link:
iPhone: Troubleshooting issues making or receiving calls - Apple Support
These steps can help identify and resolve the symptom that might be causing the connection issue.
All the best,
Jeremy -
My mac has started displaying a message stating "You need to restart your computer". Web says it's kind of kernel panic! Is this a hardware problem? Do i need to contact my distributor? please help..it annoys me very much..
Hello welcome to the ASC user to user forums
please see these support documents
http://support.apple.com/kb/TS2570
http://support.apple.com/kb/TS1440
http://support.apple.com/kb/HT1455
http://support.apple.com/kb/ht3964
http://support.apple.com/kb/HT1379
http://support.apple.com/kb/ht1379
http://support.apple.com/kb/HT1509 -
I'm having trouble with my new iPhone.it seems it likes to turn it self off for no reason at all.i would like to know is this a hardware or software problem or just a iPhone problem i don't know.
basic troubleshooting steps from the User Guide are restart, reset, restore from backup, restore as new.
Have ANY of these been tried? -
hi, when zooming in to capture still images, the image is really blurred and out of focus. is this a hardware issue and is there any solution for this?? or is my device faulty?
If you are using the iPhone camera zoom then remember that this is a digital zoom not an optical zoom. The zoomed in area will have fewer pixels and not appear as clear. The more you zoom the worse it gets. It's like cropping a picture after it has been taken.
-
My MacPro base ... heats up n heat is simmered n heats up .. this is on left upper quadrant. Is this a hardware problem n how do I check it?
Download and install iStat menus:
http://bjango.com/mac/istatmenus/
Open Activity Monitor and set it to ALL PROCESSES and set CPU to display values from high to low.
When your MBP gets hot. take images of both and post them for inspection.
Ciao. -
My Iphone4 microphone only works on wi-fi (FaceTime orTango. Is this a hardware or software problem?
My Iphone4 microphone only works on FaceTime or Tango. I cannot speak on a regular phone call. Is this a hardware or software problem?
Get help with hardware features on your iPhone, iPad, and iPod touch - Apple Support
-
my new ipad works perfectly. the iphone 5, however, cannot connect to the same wifi, can barely get a 3G signal, and the power level is at 53% after being barely used for 1\2 a day. Is this a hardware problem?? My old 3Gs was fine until it died.
Greetings,
I've never seen this issue, and I handle many iPads, of all versions. WiFi issues are generally local to the WiFi router - they are not all of the same quality, range, immunity to interference, etc. You have distance, building construction, and the biggie - interference.
At home, I use Apple routers, and have no issues with any of my WiFi enabled devices, computers, mobile devices, etc - even the lowly PeeCees. I have locations where I have Juniper Networks, as well as Aruba, and a few Netgears - all of them work as they should.
The cheaper routers, Linksys, D-Link, Seimens home units, and many other no name devices have caused issues of various kinds, and even connectivity.
I have no idea what Starbucks uses, but I always have a good connection, and I go there nearly every morning and get some work done, as well as play.
You could try changing channels, 2.4 to 5 Gigs, changing locations of the router. I have had to do all of these at one time or another over the many years that I have been a Network Engineer.
Good Luck - Cheers,
M. -
"DPC_watchdog_violation" happens almost everyday, tried re-installing, is this a hardware problem?
Hello, I'm from Hong Kong. You guys must be wondering why I'd post in a foreign forum instead of local one - I cant find any support from my local forum. I cant even find this model form my local Website.
First of all, I brought this laptop (Envy 14) in 2013 from my so called "University Notebook Scheme". But once I got my first Envy, problem arised - my screen keeps flashing. I went back to the store and replaced it with a new one. Yet, this "new one" keeps having "DPC_watchdog_violation" almost everyday, no matter what Im doing - browsing the Net, using iTunes, even when Im using Microsoft Office for my assignments.
I've tried many solutions suggested: updating software & drivers, and reinstalling the windows; nothing works. Instead, more problem arised throughout these 2 years: my screen starts to flash, sometimes I cant even turn my computer on (power button on with a black, turned on, screen). I cant update my windows - "Failure configuring Windows updates, Reverting changes" and got stuck in the update loop.
I'm scared to do anything with this laptop now, even typing this "problem discription". I stored every files into the Dropbox for safety purposes. I save my Word documents every minutes, try to run as less programme as I could.
I've been wondering if this is a hardware problem, a serious one. Some of my classmates also got this Laptop from the University Scheme as well, most of them reported with the same issue (especially for the screen/display issue). With the notorious HP's repair and warranty service, I'm discouraged to sent my Laptop to them. I've even heard that I'll be charged even I'm still under warranty.
P.S. sorry if I have made any grammatical mistakes.Additional Information for my Laptop (from WhoCrased):
System Information (local)
windows version: Windows 8 , 6.2, build: 9200
windows dir: C:\Windows
Hardware: HP ENVY 14 Sleekbook, Hewlett-Packard, 198C
CPU: GenuineIntel Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz Intel586, level: 6
4 logical processors, active mask: 15
RAM: 8351010816 total
Crash Dump Analysis
Crash dump directory: C:\Windows\Minidump
Crash dumps are enabled on your computer.
On Fri 27/02/15 7:02:39 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022715-19390-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x5A540)
Bugcheck code: 0x133 (0x0, 0x501, 0x500, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\Windows\system32\ntoskrnl.exe
product: MicrosoftR WindowsR Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Fri 27/02/15 7:02:39 AM GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: iastora.sys (iaStorA+0x770DB)
Bugcheck code: 0x133 (0x0, 0x501, 0x500, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\Windows\system32\drivers\iastora.sys
product: Intel Rapid Storage Technology driver
company: Intel Corporation
description: Intel Rapid Storage Technology driver - x64
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: iastora.sys (Intel Rapid Storage Technology driver - x64, Intel Corporation).
Google query: Intel Corporation DPC_WATCHDOG_VIOLATION
On Fri 27/02/15 3:22:12 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022715-15015-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x5A540)
Bugcheck code: 0x133 (0x0, 0x501, 0x500, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\Windows\system32\ntoskrnl.exe
product: MicrosoftR WindowsR Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Thu 26/02/15 7:39:23 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022615-33093-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x5A540)
Bugcheck code: 0x133 (0x0, 0x501, 0x500, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\Windows\system32\ntoskrnl.exe
product: MicrosoftR WindowsR Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Mon 16/02/15 9:27:12 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\021615-23328-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x5A540)
Bugcheck code: 0x133 (0x0, 0x501, 0x500, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\Windows\system32\ntoskrnl.exe
product: MicrosoftR WindowsR Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Sat 14/02/15 9:37:59 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\021415-28265-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x5A540)
Bugcheck code: 0x133 (0x0, 0x501, 0x500, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\Windows\system32\ntoskrnl.exe
product: MicrosoftR WindowsR Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Wed 28/01/15 3:01:05 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\012815-19171-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x5A540)
Bugcheck code: 0x133 (0x0, 0x501, 0x500, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\Windows\system32\ntoskrnl.exe
product: MicrosoftR WindowsR Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Tue 27/01/15 2:44:44 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\012715-33937-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x5A540)
Bugcheck code: 0x133 (0x0, 0x501, 0x500, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\Windows\system32\ntoskrnl.exe
product: MicrosoftR WindowsR Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Fri 23/01/15 3:33:59 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\012315-63484-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x5A540)
Bugcheck code: 0x133 (0x0, 0x501, 0x500, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\Windows\system32\ntoskrnl.exe
product: MicrosoftR WindowsR Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Tue 20/01/15 5:31:56 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\012015-18734-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x5A540)
Bugcheck code: 0x133 (0x0, 0x501, 0x500, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\Windows\system32\ntoskrnl.exe
product: MicrosoftR WindowsR Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time. -
Just recently my iphone 4s speakers started acting up. I have restored it twice once to a back up and the other time as a new phone. The speakers get really staticy on full volume and then it cuts out but if I turn down the volume and blow air into the speakers it goes back to play fine until I turn up the volume again. I'm going to try to clean it out with a toothbrush and see if that helps. But I'm curious does this seem more like a hardware problem or is it a problem with the operating system and I should try to hold out until ios 6 comes out and see if that helps. I've read all the problems with this so I'm hesitant to send it in since there is no apple store around here and find out I have to pay to get it fixed. Tried to talk to them on the phone but since it's a week past ninety days I would have to purchase apple care in order to get any help but yet that's only available for 30 days after your purchase so I'm not sure how come they can offer that over the phone. Thanks for any help.
Thanks for the help. The problem just started suddenly. The problem I have is the closest Apple Store is 3 hours away so I would have to send it in and I don't want to send it to them and then be told I'd have to pay for it. Would they just send the phone back if you decide not to have it fixed. I will probably just get used to it or maybe it will fix itself one day.
-
Lion 10.7 Only Boots in Safe Mode. Is This a Hardware or Software Issue?
Hi. On my iMac late 2009 i7 8GB bought last March only. I reinstalled Lion (I didn't erase the whole disk because I have Boot Camp Windows and I have filed there) and it can only boot in safe mode if I use the Mac's built-in EFI bootloader (where you have to press option on restart) menu then press shift after choosing the iMac OS X hardisk. I've been trying to fix it for around 4 days now today. I'm tempted to take it to the authorized Mac shop but that could take weeks to months in our country. If I let it boot normally, it would seem to have a kernel panic and would stop at the white/gray screen. Verbose mode showed that is stopped at something 10 of these like: nstat fail.
Is this a GPU hardware problem, specifically the 3D element of this 4850M GPU? I'd like to do load each kext, each extension manually but I can't find them in Lion. When I use the Lion DVD or the Lion Recovery partition, it's very sluggish, every click and process takes 20 seconds to minutes. If I try to boot in Linux, Snow Leopard DVD or Snow Leopard external hardisk, there seems to be a kernel panic. It's either just a black screen or a garbled screen.
I want to erase/format the iMac's hardisk but in Safe Mode, it can't be mounted even if I use Disk Utility. If only there's a way to force it to mount, I can save some Windows 7 file to one of my external hardisk or flash drive. Does anyone know of an app or program that can mount NTFS files on Lion's Safe mode?
If it's a Lion bug, has Lion somehow corrupted the Mac's built-in (hardware not the EFI partition in the hardisk) EFI or somehow corrupted the Mac or GPU's ROM? Could it be a new OS X virus? Should I then perform in Safe Mode to flash the GPU ROM and the Mac's ROM again (I have the latest)?
Do you think if I erased the whole drive, reinstalled it again with either Snow Leopard (assuming it doesn't boot into a garbled screen) or Lion things will go back to normal?
Has anyone experienced something like this? What was the culprit (was it a hardware or software issue) and what was the solution?
Gbu.Hi thanks for all the concern and replies. I've tried all that.
I had just got it back from the shop last Friday. It was there for around two weeks. It was a faulty GPU (when you see garbled display that's consisten when booting it the GPU). I have a strong feeling it's related to the Lion install 10.7 or 10.7.1 and may be similar to reports of Mac laptops overheating. It's good the GPU is removable, it might have taken 3 week or a month if it had been the whole board.
It's a blessing in disguise though as with all or most cases because I also got to have the LCD replaced for excessive backlight bleeding (in my opinion), the dead pixel from the previous LCD isn't there anymore (though under the glass there're some smudges but nothing crucial). The backlight bleeding is still the same though in my opinion but at least it's new.
It's a great thing I bought Applecare. I didn't buy it for the iPhone because that's more durable (my iPhone 3G's 3 years old now and it's still solid. Although there are scratches and a crack at the back at the bottom, got sqeezed under the table I think when I sat). I think Applecare is a good recommend for things that get hot like desktop and laptop Macs(are the iOS considered Macs btw?) which are twice or thrice the price of iOS devices.
Gbu. -
Just bought a MacPro and can airplay to Apple TV? I read that the iMaC, at least my model (Late 2009) does not support. Is this software (Lion) or hardware dependent, as well.?
Adding: It will be the "AirPlay Mirroring" for full screen.
Maybe you are looking for
-
Line Chart to Compare Current Year vs Last Year
I am on BI 7 SP9. I need to create a line chart that shows 2 lines to compare revenue for the current year against last year. The first line should show the revenue for the current year. The second line should show the revenue for last year. In my B
-
ERROR consistency check in recordset structure validation
Hi, I have a file that has the format below. The file is managed with the below content conversion parameters. However, it's not working and the error message that i get is "Conversion of file content to XML failed at position 0: java.lang.Exception:
-
Hello all, I plan on upgrading my Powermac G4 AGP to a 1GHZ Processor. Now, I could get an MDD for about the same price, but with some of the upgrades I put into the machine, it is a bit safer of a choice to just keep it. Does anybody have a Sonnet p
-
Connected apple tv comes up with no signal
just brought a apple tv box and connected it to tv using hdmi cable but keeps coming up with no signal ive disconnected cable five and still happening iknow hdmi cable works as it runs my blueray player
-
Problem deleting unused InfoObject
Dear All, We have encountered a problem deleting an unused InfoObject getting the following messages :- Data element /BIC/OIPTBTAUDIT still used in table/view STRU_453SRKYRVVCCB1I7ZI5ZXNXRO Data element /BIC/OIPTBTAUDIT still used in table/view STRU_