OnTimer3

Name
OnTimer3 - Call a function at fixed interval

Description
Call a function at a fixed interval using Timer 3.
 * OnTimer3 works on all 8- and 32-bits boards.

The function is called indefinitely until Int.detach is called.

If Timer 3 is free, OnTimer3 will return the number of the interrupt, otherwise it will return "false".

Multi-call to OnTimer3 is not allowed. Function will then return "false" and produce "Error : interrupt TIMER3 is already used !" on the debug output.

If overwrite is needed, always use Int.detach with the interrupt number before new declaration.

beta 9.05
 * Since

Syntax
void OnTimer3(void (*callback), u8 timediv, u16 delay);

Function called each time Timer3 trigger an interrupt. No argument is allowed in this function.
 * callback

INT_MICROSEC, INT_MILLISEC or INT_SEC (for ms, us and sec.)
 * timediv

time before interrupt is triggered (using timediv as unit)
 * delay

Comments
OnTimer3 works on all 8- and 32-bits boards.