Scheduling tasks

[mister_e]

without the whole idea it's hard to say but
Select case ISRLoop
CASE 20,40,60,80

could be interesting.

[HenrikOlsson]

Niels,
Ahh..thank you! Just what I needed!

So basicly:

Main:
  If ISRLoop // 10 = 0 then
    Gosub 10HzTask
  EndIf

  If ISRLoop // 50 = 0 then
    Gosub 2HzTask
  EndIf

  If ISRLoop // 2 = 0 then
    Gosub 50HzTask
  EndIf

  If (ISRLoop + 1) // 2 = 0 then
    Gosub Other50HzTask
  Endif
Goto Main

Or something like that...
If I got that right it will work. I'll have to make sure that the tasks that may be run at any given time doesn't take longer than a total of 10mS because then ISRLoop will have been incremented before the 'scheduler' can check if the task should run. Need to do some carefull timing and planning here! And perhaps 'spread' the tasks out like with the 'Other50HzTask' above.

Thanks!
/Henrik Olsson.

[Charles Linquis]

One thing to be careful of - any technique that relies on exact counts gets into trouble if a task takes longer than the interrupt interval. If you are unsure of your execution speed, you should check for a count not just equal to, but instead check for equal to or above the specified number of ISRLoop counts.