EPROM erasing, programming

At risk of sounding uneducated.............
   
  I am in the preparation stage of programming my epoms for my gravitar game and I wanted to ask some basic questions.
  Currently I have the programmer working as a stand alone and I am working on configuration issues with the com ports. (I can fix this, I just have to spend time on it)
  I also borrowed a small (5 chip) eprom eraser.
  I have found the new rom images (rev 3). Not sure which file goes into which rom, but I think I can figure this out. I am guessing the ID on the schematic or PCB will give me the answer.
  Now for my questions:
   
  What process should I follow? should I download the current roms and try to save whatever is on them? Should I just wipe them out and reload them. Should I buy a spare set, program them and then swap them out?
   
  Is there any chance (not knowing what I am doing) that I could damage my roms? I'm not going to plug them in backwards or anything, but I could write something to them I didn't want too. (I'm learning that part)
   
  Should I buy one spare rom just to practice with and swap it in and out of my board when I think I got it right?
   
  And last, has anyone ever wrote a step by step "how to reprogram your eproms" for dummy's?
   
  I am not the one to write code for one of these machines however, I feel I should be able to load the program into these chips. Maybe my confidence comes from my ignorance.
   
  Guidance is greatly appreciated,
  Cameron

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Received on Thu Sep 14 15:30:36 2006