Switching on a cog - once!

John A. Zoidberg

Hello there,

I've a bit of problem with enabling a cog, which is shown in the code space below:

some program loop here:

repeat
|-- ...
|-- ...
|-- IF (alarm)
     |-- coginit(3, anotherCog, @stack3)
|-- ...

However, the program works, but it didn't initialize the cog once, but a lot of times according to the loop, causing the system to stutter.

How can I turn the cog on once, and latch it? I know it could be a basic programming question, but I couldn't figure this one out.

blittled

There isn't much detail to go by here. Did you set alarm to false after the coginit line? If you don't the coginit will launch keep launching cogs while alarm = true which may be causing the stutter.

Heater.

How about something like:

VAR
  byte alarm
  byte alarmCog
  long stack3[20]

PUB start

repeat
'...
'...
    if alarm
        if alarmCog == 0
            alarmCog := cognew(anotherCog, @stack3) + 1
'...
'...

Generally using coginit is frowned upon.

John A. Zoidberg

Danke! Thanks for the help. Now I can hook it up to the relay or something for my application.