delay_ms() question.

Freddie · Joined: 06 Sep 2003 Posts: 49

Definition from user manual,
delay_ms(time)
Parameters:
time - a variable 0-255 or a constant 0-65535

So, in the following code, is the value I'm passing a variable or constant? If it is a variable, how can I force it to be a constant?

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

You can't make it into a constant. You're calculating values at runtime.
That requires a variable.

See this thread for an example of how to create your own delay_ms
function which can accept a 16-bit variable as a parameter.
http://www.ccsinfo.com/forum/viewtopic.php?t=375&highlight=longdelayms

rnielsen · Joined: 23 Sep 2003 Posts: 852 Location: Utah

One bad thing about the delay() command is that it causes the PIC to just sit there, twidling it's thumbs, waiting for it to get done. I try not to use it because the PIC could be doing other things while waiting. I like to use the built in timers instead. Just have the portion, that needs the delay, in your main body and have a timer set a flag that will enable that section to continue after a certain amount of time. You can use variables as much as you want this way to adjust the delay time.

Ronald