Counting Cogs

doggiedoc · 2011-12-26 16:42

Anybody know if there is a way to find out how many cogs are in use at any given time in a program? Besides counting manually, that is.

Thanks,
Doc

sidecar-racer · 2011-12-26 16:52

Look for sparecogs.spin by Alex. Works great
Rick

doggiedoc · 2011-12-26 17:04

Thanks! I'll check it out.

I've attached the project I'm fiddling with. It's Chip's SpatialSoundDemo that I've modified to use a 2-axis joystick instead of a mouse. I think I may be running out of cogs or possible I am doing something else wrong.

if I use cognew like I have here it works, but if I try to check for cogs it doesn't - I've commented out the line the doesn't work.

CON
_xinfreq = 5_000_000 ' External Crystal Frequency
_clkmode = xtal1 + pll16x ' Enabled External Crystal and PLL X16


OBJ
  rc         : "RCTime"

VAR
long joyStickStack[2]
long UDx, LRy
long  cog

PUB start : okay 

'  stop  
  cognew(RawUDLR,@joyStickStack)
'  return cog := cognew(RawUDLR,@joyStickStack) + 1
          
PUB stop

'' Stop joystick driver - frees a cog

  if cog                                                                                                                                    
    cogstop(cog~ -  1)


PUB RawUDLR  | UD, LR

   repeat
    rc.rctime(4, 1, @LR)
    rc.rctime(2, 1, @UD)
    UDx := UD
    LRy := LR

    
PUB _UD : x    
    x :=  UDx

PUB _LR : y
    y := LRy

Mike G · 2011-12-26 17:16

Since cognew returns the newly started COG ID. How about encoding ( |< ) the COG ID in a byte. Then you can use logic operator to keep track of the COGs in use. You could just keep track of the COGs in an array.

kuroneko · 2011-12-26 17:21

@doggiedoc: Be generous and give your joystick stack a few more longs (I stick with 32 during development). Two is definitely too small.

Also, the way you use the RCTime object looks wrong. You're supposed to start it and simply read variables which are updated by its background task. Just realised it's in foreground mode. Apologies.

doggiedoc · 2011-12-26 17:29

I think I got it. I didn't need cognew there at all. I should be calling the "start" method in RCTIME instead of the rctime method directly. This fixes the cog assignment problem posted above. I figured it out when I was bring to count manually how many cogs I was using.

{---->replaces mouse.spin for SteroSpatializerDemo
RC time uses 2axis joystick on pins 4 and 2

 }
CON
_xinfreq = 5_000_000 ' External Crystal Frequency
_clkmode = xtal1 + pll16x ' Enabled External Crystal and PLL X16


OBJ
  UD         : "RCTime"
  LR         : "RCTime"  

VAR

long UDx, LRy

PUB start

    UD.start(4, 1, @UDx)
    LR.start(2, 1, @LRy)

    
PUB _UD : x    
    x :=  UDx

PUB _LR : y
    y := LRy

doggiedoc · 2011-12-26 17:33

Thank you all for the responses - @kuroneko - I see you had the answer for me right there! Thank you all again.

Paul

Counting Cogs

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