Thread: Need some help guys.

lkjh

sleep(N) is a standard function that causes execution to pause (nicely) for N seconds.

Originally Posted by elvar88

Code:

               for(j=1;j==30;j++)
               {
               for(i=1;i==4700;i++);
               }

Even if it were possible to create a predictable fixed delay using a for-loop (which it's not), that's not how you use a for loop anyway. The middle part of it is the continuation condition. You're saying that the loop should only continue whenever j is already 30.

You should state what OS you're using here. Windows has a Sleep function that sleeps for a number of milliseconds rather than seconds (and yes that's a capital S in this case).

main must return int, never void.

Originally Posted by MK27

sleep(N) is a standard function that causes execution to pause (nicely) for N seconds.

sleep() is not standard.

Originally Posted by elvar88

We cant use sleep function for this project. any other ideas??

Are you using embedded hardware, or is this just something that runs on a normal PC? In embedded hardware, it's pretty common to just use busy loops for delays. Just take the machine instructions that are executed for every loop iteration, and calculate the total number of CPU cycles that are generated per loop iteration. Then divide that into the clock speed to figure out how many loop iterations you need to sleep for the specified amount of time.