// ------------------------------------------------------------
// enables the PIT clock if not already enabled, then checks to
// see if any PITs are available for use. if one is available,
// it's initialized and started with the specified value, and
// the function returns true, otherwise it returns false
// ------------------------------------------------------------
bool IntervalTimer::allocate_PIT(uint32_t newValue) {
// enable clock to the PIT module if necessary
if (!PIT_enabled) enable_PIT();
// check for an available PIT, and if so, start it
for (uint8_t id = 0; id < NUM_PIT; id++) {
if (!PIT_used[id]) {
PIT_id = id;
start_PIT(newValue);
PIT_used[id] = true;
return true;
}
}
// no PIT available
return false;
}
void restart_timer(void)
{
start_PIT();
}
