On (20 Mar 96) Bill Grimsley wrote to Brenton Vettoretti...



 BG> Hi Brenton,



 BG> What's the story with EPROM copying these days, do you need highly

 BG> specialised equipment, or what?



you need an eprom programmer, some are plugins to a pc others are

standalone, usually with an rs232 port. you also need a uv source of the

correct wavelength to erase the eprom first.



 BG> The Sportie's EPROM appears to be a fairly standard 256Kb job, and

 BG> I wonder, do they generally copy first time, every time without

 BG> any problems?



depends on the manufacturer, some are better than others, it also can

very from piece to piece, but generally these days most are ok.



 BG> Also, can they be altered slightly, if required?



if you mean can an eprom be changed, as you erase to all "1"s you can

change "1"s to "0"s but not vice versa. some people
leave an area of

"1"s as a patch area, but its usually better to erase the whole thing

and start again. if you mean can the data be changed, then thats easy

all the programming systems that i've used have edit capabilities, as

long as you dont want to do inserts there is no problem.



                        Keith





... Ban the bomb - just shoot the fuckers!



--- PPoint 1.96