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???
06/14/07 21:25
Modified:
  06/14/07 21:27

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#140801 - the good, the bad and the ugly
Responding to: ???'s previous message
fit in the back of the ram chip - the ugly - you need to load them from somewhere every time you power up (but see below).

I had thought about using I2C EEproms but I have the nasty suspicion that they may be a tad slow - the bad - definitely too slow if you plan on 'effects'.

map the majority of code memory for the font tables - the good.

now for a fancy possibility:
use a large serial EEPROM for many fonts and load the selected font to RAM and use it from there.

Erik

List of 10 messages in thread
TopicAuthorDate
8052.com SBC Eprom problem            01/01/70 00:00      
   hummm....            01/01/70 00:00      
   staring at the papers and the board...            01/01/70 00:00      
      without any knowledge of the specific            01/01/70 00:00      
      What was I thinking...!            01/01/70 00:00      
         the good, the bad and the ugly            01/01/70 00:00      
            Semi-cute?            01/01/70 00:00      
         flash?            01/01/70 00:00      
            You are right, I Meant DS89C450            01/01/70 00:00      
   That's why you should review the schematic            01/01/70 00:00      

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