Programming Lynx Eproms

[ziggystar]

Hello all. I have a lynx eprom board I removed the eprom from, replaced it with a socket and programmed some new eproms. they don't work. the original does. is this that protection/encryption header. How do I add one to my rom images? thanks

[Harry_Dodgson]

You need to get the encryption programs from the CGE website

(and probably the UAE Amiga emulator), then follow the instructions

on my website to do it the right way. Or you could just grab the

C program on my website which will insert a (insecure, 256K only)

header for you.

[ziggystar]

and your website is?

[Harry_Dodgson]

http://www.provide.net/~hdodgson

[atarifan49]

Hello all. I have a lynx eprom board I removed the eprom from, replaced it with a socket and programmed some new eproms. they don't work. the original does. is this that protection/encryption header. How do I add one to my rom images? thanks

 

 

Well, if you're making game ROMs from Lynx emulator images you need to remove the header from the files before burning onto EPROM.

[ziggystar]

I bet thats correct, but how do I do it? thanks we're on the right track.

[atarifan49]

I bet thats correct, but how do I do it? thanks we're on the right track.

 

 

It's a matter of removing the first 32 or 64 bytes of the binary file using a hex editor. I don't have a reference in front of me to tell what the exact size of the file is. But you should be able to see it in the data or use the file size as a reference.

 

A true binary image of an EPROM will be a 2^n power size. For example a 2732 binary image will be 4096 (4 * 1024) bytes or a 27C010 would be 131,072 (128 * 1024). So determine how many bytes over that size should give you an idea of the header size you need to remove.

[Nimtene]

I never used it before myself, but I believe

that a program called uCON64 has support

for removing LNX headers.

[ziggystar]

Used a hex editor. frhed to properly remove the first 64 bytes and it worked great! UCON64 is too stupid! I originally tried notepad but that ruined the .bins. silly me!

thanks for the help!