Start - save - stop
Hey,
I have created a program which should be able to acquire measurements using DAQmx and display them in a chart.
The program should start logging after pressing the 'START' button.
When the STOP button is pressed, the data logging should be terminated.
When SAVE is pressed, the data has to be saved to a MATLAB file.
When STOP is pressed, the program should end.
I've added the vi in attachment. It seems not to work properly. I know that it has something to do with the inner while loop, but I don't really know how to fix it. I would like to keep using the event structure so I don't know how to program this otherwise.
Also, is there a possibility for the user to choose the amount of channels he is willing to read with the DAQmx system?
When changing from 2 to 6 channels, there should also be 6 charts displayed on the screen. I tried to do this using the 'visible' property node but it only slows the program down...
Kind regards,
Dries
Attachments:
2Channels.vi 75 KB
DriesM wrote:
@altenbach: Could you please explain this a bit more in detail?
"It is not a good idea to trap interactive loops inside an event structure. You can use the outer loop for everything if done right."
I guess if I just take away the inner loop my program won't work anymore, so how exactly can I do it right?
Here's is a very quick draft manipulating the timeout. (LV 8.5)
(Not tested, so there are probably bugs. Modify as needed.)
LabVIEW Champion . Do more with less code and in less time .
Attachments:
2ChannelsMOD.vi 58 KB
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I believe that you would get more responses to your problem if you start a thread here. They are the members who know your computer best.
Please click the "Thumbs up + button" if I have helped you and click "Accept as Solution" if your problem is solved.
Signature:
HP TouchPad - 1.2 GHz; 1 GB memory; 32 GB storage; WebOS/CyanogenMod 11(Kit Kat)
HP 10 Plus; Android-Kit Kat; 1.0 GHz Allwinner A31 ARM Cortex A7 Quad Core Processor ; 2GB RAM Memory Long: 2 GB DDR3L SDRAM (1600MHz); 16GB disable eMMC 16GB v4.51
HP Omen; i7-4710QH; 8 GB memory; 256 GB San Disk SSD; Win 8.1
HP Photosmart 7520 AIO
++++++++++++++++++
**Click the Thumbs Up+ to say 'Thanks' and the 'Accept as Solution' if I have solved your problem.**
Intelligence is God given; Wisdom is the sum of our mistakes!
I am not an HP employee. -
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Anyone in similar position:
Open iTunes app on iPhone, and pick an option from bottom, such as music. Then scroll down to bottom of page and where your iTunes ID is, press on it, and pick sign out.
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