Thank you so much for consolidating all of this info into one video. The chip/socket hi/lo/a/b nonsense info alone was worth it.

Great vid, everything covered in enough detail.

FINALLY....someone that explains this in plain English.......Thank you very much!!!!

Another great video. Thanks for the detailed explanation of how to go about doing this. Always look forward to your videos.

@retrofriends

3 жыл бұрын

Thank you !

For sure the best Amiga rom handling/programming video so far! I've seen a few and most are quite useless and not really worth the time watching. The previous one I saw by Chris Edwards gave me most answers, your video gave me the last answers. Awesome, Huge Thank you for this video!!

@retrofriends

2 жыл бұрын

Glad to help!

THANK YOU for doing this. Only issue now is that the latest srecord seems to no longer be the same CLI options. I'm trying to remedy this, but resulting files I get from tying the commands in here end up being around 600K before doubling them up. I'll have to see what changed. Update: I used the same version but it was on windows 11. The resulting file it made was 634966 bytes. That's bigger than the ROM file itself - so the splitting doesn't seem to work on it. I ran the help for it and don't see an option for -split

Everything very nice and calm explained - very nice, thank you very much! Except I personally wouldn't go for the GQ-4X as it seems pretty expensive (together with that adapter and UV Eraser its for sure over 200$). The TL866II+ is obsolete and also still pretty expensive so I'll go for the T48 kzread.info/dash/bejne/ZmaKpc-IhrqnqcY.html The only thing I'm note yet sure about is the adapter. In this video an already built one for the T48 is shown: kzread.info/dash/bejne/aIyVo8Wonbu-os4.html There's one you can build on your own for the TL866II+ kzread.info/dash/bejne/fqKC1o-ahdaYYLA.html but I still have to figure out if that one can be used for the T48 too...

Just a couple of notes: - If you get a programming error where the programmer was unable to "clear" a bit, don't bother erasing! Just turn off the automatic blank check and try programming again. Remember, for EPROMs, programming means turning 1-bits into 0-bits. Sometimes a few bits can be sticky, and require just trying again to program them. The programmer should skip over the bits that are already programmed correctly and just program the ones that need clearing. Of course, this may vary depending upon your hardware. I recommend the Xgecu T-48 (and adapter for 27Cx00 chips) at this point in time. - Rather than double up the images, you can program 2 separate ROMs to the double-size chips. There will be an extra upper address line (on each chip) that you'll need to connect a switch to toggle between 5V or Gnd to select the image to be used.

@retrofriends

7 ай бұрын

Thank you for the advice. I did a separate video on putting two rooms on one chip with a switch. Good to know it can be done with these double chips too.

This is an excellent video. But, for me, in my Amiga forever directory, my ROM size is 11 bytes more. Isn't this because you require to "decrypt" the ROMs first? If - when you open the ROM file - it starts with "AMIROMTYPE1" then it requires decrypting, surely? In that case, you need to remove those first 11 bytes and XOR each byte with the ROM.key file indexing as you go. Finally, you end up with the ROM as it is intended for which I had to write my own thing to handle... Not sure if a public one exists. I am curious as to why your ROM files in your Colanto are not also 11 bytes too large... Thanks.

@retrofriends

2 жыл бұрын

I have another video on my channel that I believe addresses this. The gist is that you have to install licensed Amiga forever software and run it once. It will then decrypt all the roms.

where can i download the Amiga 3.9.1 rom file ?? 512k image file for winuae? is it a german version this one? 3.9.1? also where can i download this file from ? thanks.........

@retrofriends

7 ай бұрын

I had to purchase mine from the developer. Not sure where else you can get it from.

@ms-ex8em

7 ай бұрын

@@retrofriends okay thanks my friend. who’s the developer is it hyperion entertainment ?? thanks lots

@retrofriends

7 ай бұрын

​@ms-ex8em I did not burn 3.9.1 roms - and I never have so sorry I can't help you. Watch this video starting at 1:35 to see what version I used and where to get it.

It‘s 32bit Amiga (uC) and not AGA. A3000(T) is 32bit and not AGA, still needs 2 ROMs.

Hi, how can i use 27c800 eprom ?

@retrofriends

2 жыл бұрын

I don't recommend it. It has too many pins, and is way overkill (4x the storage). 27c400 chips are cheap, fit perfectly, and are what I feature in this tutorial.

licensed haha only if thru me.. there for nothing needs to be licensed. Then, again all these 'History" or info on the amiga are all wrong so they arent NOT official so they arent licensed. as everything or anything Amiga has to go thru ME, AS deemed by Jay Miner