waveform usb

[robert_kar]

hello anyone can help I want to create some waveforms very similar to what I want is attached

1 create in LabVIEW
2 run and send them via USB
3 play this waveform on a pic 18F4550

[mikeporter]

The way this forum works is that you can post specific question and those of us who volunteer our time will do our best to answer those questions.

Saying, "Here are my system requirements, please write my program for me" is NOT a specific question.

LV comes with functions for generating all kinds of waveforms. The interface to the PIC card will be serial. LV also lets you use serial interfaces, and it comes with examples that show how to use all these features.

Give it a try on your own and ask questions about what you don't understand.

Mike...

[chico_pic]

thanks for replying

and now I send the vi I am trying to build 

postscript

is the same robert_kar

[mikeporter]

First of all, is the PIC board you have really a raw USB device? Most of the ones that I have seen emulate a serial port. Secondly, in terms of the format of the data going to the PIC card the documentation for the board should tell you the format that it expects data in, as well as how to communicate with it.

The output of the signal generation VI that you are using is the waveform datatype. What you need to do is extract just the data array using the Get Waveform Components from the Waveform function palette.

Who makes the PIC card that you are using?

Mike...