use of float

[davt]

Hi everybody

I am designing a long delay timer and I need a 32 bit variable to count a large number of "ticks" , can I just declare a float variable and use it to count the "ticks" .
Thanks

Dave

[valemike]

I don't know what the range of CCS's floats are, but even those are finite.

How many ticks, or Seconds, do you want to elapse? For example, if I wanted to count, say, 30 minutes, I would do the following.

Looking at CCS's example program ex_stwt1.c, there is a SECONDS timer. So if I wanted to get 30 minutes out of it, then I would need 60 x 30 = 1800 seconds. See how 1800 easily fits inside an "unsigned long" which can go up to 65535 (thus 65535 / 60 = 1092 minutes).

That is how i would go about achieving a long timer, rather than using a float.

[Darren Rook]

So, why not use int32?

[DragonPIC]