Serial Communication With Labview Tutorial Loops

Handling Errors in LabVIEW. Especially for I/O operations (file, serial, instrumentation, DAQ, and communication), and provide a mechanism to handle errors. At Data Communication > Protocols > Serial. Lab 13: LabVIEW DSP Module Examples. This is due to the slow communication speed between the DSK. Later in the tutorial you will be required to do this. Place a SimTime Waveform graph. Note that the LabVIEW Simulation loop includes an ODE solver. Arduino and Labview Serial Communication.

I am trying send SPI commands with brief pauses in between (timed-sequence). For example, the time between two SPI write command is 20 microseconds. I send 3 SPI write words and 5 analog reads (sensors such as temp etc), then write another SPI set and read. I am facing a timing issue as I am unable to achieve each task within the specified time.
I am using ARDUINO MEGA. Since I am unable to use LINX on my board due to LINX issues, I am still using LIFA.

Can we send SPI write and analog read directly without the LINX or LIFA toolbox? Edition

Please advice and if possible give me an example.
Thanks

Active3 years, 7 months ago

I'm attempting to create a data exchange between sensors on an Ardunio (well actually a AtMega328PU based clone built on a breadboard, but I don't believe that that's the source of my problem) and a Processing script, and I'm getting some unexpected results. I was following the method of serial communication detailed here, but I get stuck with what appears to be no data actually traveling over the serial connection.

The Arduino code:

And the relevant parts of the Processing code:

And in Processing I get an output of: Asus p5kpl am se driver.

Note: I know I have the correct port selected from the list, so that is not the issue.

I've tried debugging the issue and searching the internet for similar problems, both to no avail. Any help on this issue is greatly appreciated, Thanks!

ZRyanZRyan

1 Answer

I would first check if simply sending a simple message from Arduino to Processing works. Try something like this in Arduino:

and this in Processing:

Free Labview Tutorial

If this simple setup works, you should be fine to move on to the next step and have two way communication. If the above doesn't work then there's something else causing issues with serial communication (in which case please report what errors you're receiving, if any or what behaviour you're experiencing)

In case the above works, you can try two way communication. Notice I'm making use of serialEvent() and bufferUntil. It's best to avoid blocking while loops wherever possible.

Arduino code: