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???
05/26/09 08:58
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Msg Score: +1
 +1 Good Answer/Helpful		 #165593 - Select your hardware with care
Responding to: ???'s previous message
For a 100 million units project, I would think you could find a better processor, than limiting yourself to the only one available in your local store.

Doing video with just a microcontroller is way easier if that microcontroller happens to have a SPI interface with FIFO. This would offload the shifting of individual bits. And if a character is 8 bits wide, then you can take a lookup byte from the character generator in flash, and move directly to the FIFO.

Having a FIFO with 16-bit or 32-bit width would further reduce the number of interrupts needed for each scanline on the TV.

List of 33 messages in thread
TopicAuthorDate
VGA chip for 8 bit            01/01/70 00:00      
   To do what?            01/01/70 00:00      
      Thank's            01/01/70 00:00      
         How about some answers?            01/01/70 00:00      
            Great info's            01/01/70 00:00      
               just to get you in picture            01/01/70 00:00      
                  almost similiar            01/01/70 00:00      
               Select your hardware with care            01/01/70 00:00      
                  Video FIFO            01/01/70 00:00      
                     special chips            01/01/70 00:00      
                        Stop thinking "local store"            01/01/70 00:00      
                           Is it for sale?            01/01/70 00:00      
                              Or partner            01/01/70 00:00      
                           They are good hacker            01/01/70 00:00      
                  FIFO and values            01/01/70 00:00      
               Real volumes            01/01/70 00:00      
                  Real volumes            01/01/70 00:00      
         Volume?            01/01/70 00:00      
         VGA on a TV?            01/01/70 00:00      
   Use a CPLD?            01/01/70 00:00      
   How should it work?            01/01/70 00:00      
   Understanding VGA signals            01/01/70 00:00      
   look at the "prior art" just for example            01/01/70 00:00      
   Try this            01/01/70 00:00      
      And look here            01/01/70 00:00      
      no chance for 89C2051?            01/01/70 00:00      
   The main thing to remember            01/01/70 00:00      
      SPI FIFO            01/01/70 00:00      
      well than that's crappy            01/01/70 00:00      
         about            01/01/70 00:00      
         yep thats a much more powerful processor            01/01/70 00:00      
            how do you mean more powerful?            01/01/70 00:00      
            8052.com            01/01/70 00:00      

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