VISA Resource Help

[rkmadse]

So I'm relatively new to Serial and am trying to communicate between a TI MSP430 Launch Pad and LabView to send serial commands back and forth. I have the pilot program running on the Launch Pad and am sending commands to be recieved and cause an LED to blink on the launchpad. I am checking what is being input to the Serial Write command but when I communicate with the device I always get the same thing, which is nothing happening... And then in the VISA resource this little extra symbol shows up. It's almost as if the port recieves the command but doens't execute it and gets hung up. After this point I have to basically uninstall the USB driver or restart my computer to get those little yellow bubbles to go away. Any help is much appreciated, I'll attach the VI I'm using.

[crossrulz · Accepted solution]

That little symbol just means that it is being used.  If you properly cose your ports, that would not be there.  With that many COM ports, are you sure you are using the right one?

[RTSLVU]

You are using all the defalut setting for your VISA serial setup.

Are those the correct settings for your device?

Also are you sending the right command string to your device?

Like when you select LED ON! you are actually sending the command string "LED ON!" to your device.

[ijustlovemath]

You have to actually close the VISA connection when you're done using it, otherwise you'll have to restart the computer.