Analog output from file (timing problem)

[_thomas]

Hi everybody,

I just started using LabView. I'm trying to generate non periodic waveform from text file. I have managed to solve problem with a while loop (similar to Gen Mult Volt Updates-SW Timed example - see Attachment). The problem with while loop is minimum time interval of 1 ms. I must generate 8192 samples in 80 ms so I need to find another method. In future, I'll be using 4 analog outputs.

Every help will be apreciated.

Tomislav

[_thomas]

I forget to attach .vi and data file.

[Dennis_Knutson]

Wrong example to base you code on. You are using software timed output. Much better would be Cont Gen Voltage Wfm-Int Clk. Create a wavefrom data type from the file read (Build Waveform function) and calculate the necessary sample rate.

[_thomas]

Thanks a lot, but I still have problem. I'm using Cont Gen Voltage Wfm-Int-Dig Start.vi example. Which vi should I use to convert 1-D array to waveform type ? I found Build Waveform(Analog Waveform) but I get "object not found" message. I'm using LabView 8.5.1 Full Professional.

[Ben]

Programming >>> Waveform >>> Build Waveform

is resizable and you can right click to choose the "Y" input for your array of data and "dt" is the update rate.

Ben