Help Coding a "Creep Mode"

[apm4242]

Hi,

I'm trying to figure out how to attenuate the drive motor speed at the push of a button. For example, if normal operation allows for a value of 0 to 1, we'd like to be able to push a button and have the new value be 0 to 0.5.

I've been searching around for how to do this and I can't seem to find anything definitive. I used Team 358's examples but I'm not sure that I got it right. I've been using the LabVIEW simulator to test out the code. The robot moves but does not slow when I activate the joystick push button on the xbox controller (button 9). I've attached what I have so far.

Any ideas?

Thanks!