>> I think Jeff was talking about unused portions of the display components 
>> themselves. There are 10 display drivers and parts are unused at the edge of 
>> the screen.  It isn't like peeking and poking ram, it's accessed via I/O 
>> instructions.

 

Yes, exactly. I’m referring to the RAM in the LCD segment drivers themselves. 
It is only a few hundred bits, but it would be an interesting place to store 
data from the perspective of obfuscating one’s code. Not that I’m a fan of 
obfuscation. You could also stash a small amount of data there that is shared 
between applications.

This is volatile RAM, it is reset every power cycle.

 

Jeff Birt

 

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