Time/timer function

[DavisC]

Hello,

I am trying to include a time/timer function so that in a while loop I can keep track of how long it has been and still being able to run other code.

Also I would like to use it so that when I press a joystick button, the button is disable for say 1 second (so that it only registers 1 press and not registering from consistent pressing).

Could demonstrate how this function works?

Thanks,
Davis

[Ether]

Originally Posted by DavisC

I would like to use it so that when I press a joystick button, the button is disable for say 1 second (so that it only registers 1 press and not registering from consistent pressing).

Could demonstrate how this function works?

The boolean expression

(button_is_pressed && button_was_not_pressed_in_previous_iteration)

does what you want.

It's true only in the iteration immediately after the button is pressed, and doesn't become true again until the button is released and pressed again.

[DavisC]

Thanks, that helps a lot!

Although I am still interested in learning how to use the time/timer feature.

I'm not sure if there is a specific function that can be used as a timer, or if I have to get the time off the cRIO (if possible) and do my own math.

Thanks!

[mikets]

I use this macro.

#define GetMsecTime()           (GetFPGATime()/1000)

[DavisC]

So i just add the #define up with the includes and use the function wherever I need to and do the math from there.

Thanks.

[mikets]

Originally Posted by DavisC

So i just add the #define up with the includes and use the function wherever I need to and do the math from there.

Thanks.

That's right. Typically, it looks like this:

UINT32 startTime = GetMsecTime();
//
// Do something that you want to time.
//
printf("Elapsed time = %d msec\n", GetMsecTime() - startTime);

[WizenedEE]

There is also a Timer class, but I don't like it much. Remember to call the Start() method if you use it.