ziggystar Posted June 18, 2002 Share Posted June 18, 2002 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 Quote Link to comment Share on other sites More sharing options...
Harry_Dodgson Posted June 19, 2002 Share Posted June 19, 2002 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. Quote Link to comment Share on other sites More sharing options...
ziggystar Posted June 19, 2002 Author Share Posted June 19, 2002 and your website is? Quote Link to comment Share on other sites More sharing options...
Harry_Dodgson Posted June 19, 2002 Share Posted June 19, 2002 http://www.provide.net/~hdodgson Quote Link to comment Share on other sites More sharing options...
atarifan49 Posted June 19, 2002 Share Posted June 19, 2002 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. Quote Link to comment Share on other sites More sharing options...
ziggystar Posted June 20, 2002 Author Share Posted June 20, 2002 I bet thats correct, but how do I do it? thanks we're on the right track. Quote Link to comment Share on other sites More sharing options...
atarifan49 Posted June 20, 2002 Share Posted June 20, 2002 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. Quote Link to comment Share on other sites More sharing options...
Nimtene Posted June 24, 2002 Share Posted June 24, 2002 I never used it before myself, but I believe that a program called uCON64 has support for removing LNX headers. Quote Link to comment Share on other sites More sharing options...
ziggystar Posted June 24, 2002 Author Share Posted June 24, 2002 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! Quote Link to comment Share on other sites More sharing options...
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