多循环共享一个串口
我要用串口控制一个步进电机，又需要随时知道步进电机的位置，然后让CCD停止采集，这样需要两个循环的话，会出现资源占用的问题，就不响应，请问一下有没哟好的解决方法。
View ArticleCan't see port in terminal emulator after controlling it with VISA
Hello, I created a LabVIEW VI to control the duty cycle ratios of PWM channels on a FRDM KE02Z microcontroller. The microcontroller, programmed in CodeWarrior, is set up to receive a string from a...
View Articletektronix dpo 2000
I am using the Labview tektronix DPO 2000 driver to read data from an oscilloscope. I can easily fetch two channels of data, but they are not simultaneous samples.The Get Multiple Waveforms routine...
View ArticleTurning Arrays On and Off
I have been using labview occasionally for more than about 2 years. I am not doing anything majorly intense with it at present. I currently write a few automated test programmes to test LVDT at my...
View ArticlePI algoritm implementation in atmega 32 control by RS-232 (loopback) virtual...
Hi everyone!I have a problem as follows.In labview virtual device model created using a mathematical equation.This virtual device model is controlled by atmega with implemented PI controller. In...
View ArticleKenwood PA18-3A Power Suppy Driver/ Programming Manual required
Hi, I would like to do remote programming using GPIB for the Kenwood PA18-3A Power supply. Does anyone have a base driver / programming manual for this Instrument ? Manufacturer - Texio Corporation...
View ArticleAgilent PXA IQ-Analyzer mode
Is there an instrument driver ( for CVI) which supports the PXAs IQ-Analyzer (Basic) mode ?A first check on IDN shows the agmxa driver which uses the SA Mode and some PNP driver projects for modes...
View ArticleIssue with USB-232
OK - this is probably a fairly simple issue, but it is causing some issues that I am not sure how to resolve. I am running LV 2013 on a 64-bit Windows 8 machine and I can not seem to get the computer...
View Articleandroid gps to labview via bluetooth
Hi everybody,I want to read GPS data from Android tablet.I have a gps code that is attached below.Can you help me to test this code ? My problem is that I haven't the android program which is can send...
View ArticleBlue Screen of Death
Hi, After a day of successfully testing my program. I restarted my computer and the next time that I tried to run my program I received the blue screen of death. I am running LabVIEW 8.5 on 64-bit...
View ArticleGW INSTEK LCR819 LabVIEW Driver
Hi Everyone on the forum I'm looking for the LabVIEW Driver for a GW Instek LCR 819. I had been looking over ther internet with no luck, even the vendor doesn't have it Wonder why?...
View ArticleRead multiple GPIB instruments
Hello, I have a time issue when I want to read simultanously GPIB instruments (from 1 to 24 instruments with 2 GPIB cards - GPIB0 and GPIB1). The user can choose the nomber of instruments he's gonna...
View ArticleMac
I am having trouble with running NI-488 Explorer under Mac OS 10.9. (Works fine under OS 10.8)I get an error message saying I must be "super user".I tried using disk utility to repair the permissions...
View ArticleHow to tell that Resman and NiVisaServer Finished
Is there a way to programmatically determine when Resman and NiVisaServer has finished running? We are running application code on a Windows XP machine (“machine A”) with NI Visa 4.5.1 and NI VXI 3.5...
View ArticleProblem: Instrument via serial connection
Hello Forum, I am trying to connect my instrument to my laptop via USB through Serial port. I used NIVISAIC and found the Resource name as ASRL3::INSTR. When I was working with Laview I found the...
View Article.NET API for NI-SWITCH
Where to download a help file for NI-SWITCH .NET API?We use C# and class is NationalInstruments.ModularInstruments.NISwitch;
View ArticleDSO9064通信
我用Labview和DSO9064通信时发命令给示波器。示波器可以接收但如果从示波器读的时候报错时间超出。在MAX里发IDN？也是报错。但给别的设备发就没有问题。如果发IDN？\n就能得到正确的返回.用从NI网上下的示波器驱动VI时也是报错。求指教是驱动不对吗？
View ArticleIviFgen AM Modulation Attributes and multichannel
Hi, I am modifying an IVI-C function/arb generator driver in CVI from a single channel to dual channel operation. Most of the work has been straight forward but have hit a problem with AM and FM...
View ArticleWhy can't labVIEW communicate simultaneously with all of my six RS 485 devices ?
Hi everyone, i'm writing a VI that is able to read out 8 sensors from 6 devices connected by RS 485. I'm using the VISA subVI for that. My trouble is, the more devices I connect at the same time, the...
View ArticleIs the Interface to the USB-HS library radically different from the GPIB USB B?
I have a Delphi app that ran against the gpib-32.dll in pre-Windows 7 world. I've just upgraded hardware to the HS and need to retool the app. Obviously the gpib-32.dll is out and the .PAS that was...
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