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Detect NTSC vs PAL


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#1 SvOlli OFFLINE  

SvOlli

    Chopper Commander

  • 211 posts
  • Location:Hannover, Germany

Posted Thu Apr 5, 2018 2:55 PM

I'm thinking about producing a cartridge of my demo 2k Is No Limit. Since there is an NTSC and a PAL version available, I was thinking about detecting 50 vs 60hz and running the correct demo automatically.

 

Anyone got a hint if (and how) this could be done?



#2 SpiceWare OFFLINE  

SpiceWare

    Draconian

  • 12,371 posts
  • Medieval Mayhem
  • Location:Planet Houston

Posted Thu Apr 5, 2018 3:05 PM

About to head out so a few of quick links:
http://atariage.com/...s-pal-detection

implemented in Draconian:
http://atariage.com/...-back-in-place/

updated to also detect SECAM:
http://atariage.com/...on-game-screen/

#3 SvOlli OFFLINE  

SvOlli

    Chopper Commander

  • Topic Starter
  • 211 posts
  • Location:Hannover, Germany

Posted Fri Apr 6, 2018 4:35 AM

Ah, the trick is to check the timing of the VCS vs the timing of the microcontroller in the Harmony.

 

I'm not sure if I want this, as I wanted to stick to a simple bankswitching scheme, like F8. When going for the color/bw switch, I could even squeeze both ROMs into 4K.






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