Making an EPROM Adapter and Burning Amiga Kickstart ROMs - TL866 MiniPro
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- Опубліковано 5 лип 2024
- This project was kindly sponsored by www.PCBWay.com! Today we are going to bring a Commodore Amiga A600 Back to life. It has a broken Kickstart ROM, but my Minipro TL866 doesn't support the 27C400 EPROM devices. We're going to build an adapter, then copy and burn the data to a new EPROM. Finally we'll test to see if the broken Amiga boots!
Please help support Mark Fixes Stuff at / markfixesstuff - Even the smallest pledge helps!
- PCBWay board link: www.pcbway.com/project/sharep...
- Creator forum here: circuit-board.de/forum/
00:00 - A Broken Amiga A600!
00:28 - A Kickstart ROM with missing legs!
00:40 - EPROM Programmer and EPROMs.
00:51 - Incompatible TL866 EPROM problem.
00:59 - The solution to burning an Amiga Kickstart Eprom
01:11 - Mark Fixes Stuff Intro
01:16 - Sponsor Thanks
01:30 - About the Adapter and the Designer
01:43 - Supported EPROMs - 27C160, 27C322, 27C400 and 27C800
01:54 - How the EPROM adapter board works
02:13 - Building the Board - Step-by-Step.
11:11 - The EPROM adapter is complete
11:19 - Testing the EPROM adapter with the TL866
11:26 - Fixing the broken pins on the original Amiga A600 Kickstart ROM
11:41 - Soldering temporary legs onto the ROM
12:37 - Dumping an Amiga Kickstart ROM using the EPROM adapter on the TL866.
14:06 - Writing the Amiga Kickstart ROM to a 27C400 EPROM.
16:41 - Trying out the burned EPROM in a real Amiga A600
17:05 - Installing the EPROM in an A600
17:17 - Hooking up an Amiga Disk Drive
17:31 - Power On.
17:37 - Will an Amiga boot from a Kickstart ROM burned to an EPROM?
17:45 - Burned EPROM Amiga Kickstart - Test result
17:49 - Wrap up and further plans.
18:04 - Patreon Thanks
18:15 - Viewer thanks and Further Watching!
BIG THANKS to my Patreon Supporters who are mentioned in the video
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What WAS this back ground music?! I'm still glad you're OK after, well, you know... and also thankful for the learning opportunities offered here.
I truthfully don’t remember but must of my music is licenced from epidemic sound.
@@MarkFixesStuff must have just been having a kind of day there. Can't wait for my situation to sort out and start backing people on Patreon. You're high on that list too. Thanks for the reply! Fun fact, my hands have never been steady. When I was modding my Saturn back in the late 90s (when I was an older teen), which I think may be relevant to an upcoming video, I was using a pair of playing cards to isolate pins while soldering. Those processors had teeny tiny legs and I'd have rather ruined an Ace of Spades than the board. I didn't know about things like flux or have particularly good tools or materials back then 🤣
Thanks Mark, Just ordered the same board from PCBWay and was going to do the same so this is perfect timing !
Great! This is step-by-step!
I am always impressed by the sorcery you do Mark. I can just about manage to change a AA battery in a remote control without breaking anything.
Love these videos. Totally don't have the skill to build my own, but always cool to see what amazing new designs there are out there and what people can do with it. Looking forward to seeing the A600 cleaned up and working soon too.
I’ll do a little video on the a600 cleanup in a month or so. Getting the missing keys will be the hard part I think.
14:23 - In my experience, the day it reappears will be the day you decide to work barefoot and come across the chip laying on its back.
"Code Memnory -- Blank Checking ...." and "Location in Scoket" that made me laugh! Great vid Mark
I know right 😂🤣
Excellent and very clear video - many thanks Mark!!
Glad you like it. Thank you Luke!
Serendipity. I was just struggling with this yesterday. Cheers for this!
Brilliant!
Top notch production!
Thanks Ralph!
Good to see you again mate :D always happy with tech vids :) Hope you are well :D
Hey mate! Nice to see you here! Hope you are good!
Thank you for the tutorial, you saved my bacon!
Hooray! I love bacon! 🥓
Thanks Mark, I just used my adapter for the first time and wanted to check I was using it correctly.
Glad I could help!
Great timing for me too Mark, I've been considering making one of these for future Amiga efforts. DiagRom, Kickstart etc.
I’m glad it’s helpful Glen. DiagROM is the exact same programming process.
@@MarkFixesStuff 👍
A trick I use when soldering header pins that will need to fit into a socket is to plug them into a loose socket so they will be correctly aligned once soldered
Cheers for the video! Now I can save my 3.1.4 and 3.1 and other kickstart ROMS and burn new 3.2 kickstart ROMs for all my Amigas!!!!!!
Excellent video and great music 👍
Many thanks and glad you liked the funky tracks!
I could almost see the 80s action tv credits scrolling the whole time (through the first track anyway) :)
"hold our part firm, while we work the full length ..."
fnarr fnarr
... I really have no idea what you could possibly mean....
Mark: "I've come across this Amiga A600."
UA-cam: DEMONITIZED
UA-cam: [Cancels MFS]
Yeah, I heard that intro and the uncomfortable silence that followed then I remembered which channel I was watching!
Smurf poo?
That got me cackling good and proper. Cheers Mark, I needed that :)
Fresh from Gargamel's Garden!
Great stuff👍
Cheers Duggie!
Wait a tic...what about High-Byte, Low-Byte and all that Jazz, lol? -Mark.
This video is more about building the adapter to be honest. This video featured the Amiga A600 which has a single ROM chip, meaning the Hi-Lo information is combined already. If you have a machine with the double ROM chips, then the Hi is in one chip and the Lo is in the other. You program the chips in he same way in the adapter, and make sure you put the right EPROM in the right socket.
Do I detect a higher level of innuendo these days? You’re becoming the Nigella Lawson of technical videos 🤣😂
Love the music 🙂👍
open.spotify.com/album/4nUk4XxumqIodMgU9sCM8Y?si=yh7jSgGjR_-wtSvN9bO-RA
Love your videos!
Glad you like them! Thanks for the lovely comment!!!
Subbed!!!! Brilliant channel Boda Scambaits!!!!!!
@@MarkFixesStuff Thank you! Its an honor!
I have a lot of chips with broken legs. I use simple a round machined socket, put the IC inside, use a lot of flux and solder the chip directly in. The solder bridges the gap of the broken pin - even if the pin was broken directly at the ic body, leaving just a very smal piece of metall barly visible from the side. This sandwich of IC and socket I simply put into the socket on the board. No need to burn a new eprom there.
Using the adapter is more important if you want your own kickstart - f.e if you want to integrate the 3.1.4.1 upgrade inside the 3.1.4 rom.
“I’ve come across this Amiga A600, owned by Neil, of RMC. It is not in the best condition, but is apparently functional!”
Ah, Neil is not guilty for once. This machine was sent to me years ago, when A600 machines were considered “worthless”. I know right!!!
Hey Mark, another great vid :), If I may ask what do you use to film from above ?
I have a camera mount spigot screwed to the ceiling and an extendable pole above the workbench!
@@MarkFixesStuff thanks good buddy great idea, and I thought it was wizardry 🤗🤗
LOL Smurf Poop! love it.
Schlümpfe, nice shot at german Mark.
Ja. Ich glaube, ich habe den französischen namen verwendet...
@@MarkFixesStuff It's funny in an ironic way that the initials of the Latin phrase "Errare Humanum Est" spells the German word for marriage, isn't it?
Man nearly spit my coffee all over my desk, when you said "Schtlumpf-Sche*ße". You got that one a little bit wrong XD. You need to spell it without a "T" - its "Schlumpf-Sche*ße" in german otherwise it sound like "Strumpf-Sche*ße". That translates into "stockings-sh*t" - what ever that would be XD.
Viele Grüße aus Deutschland und hab einen tollen Tag!
Simmie
LOL Danke Simmie!
Ich glaube, ich habe die französischen und deutschen namen in einem wort vermischt. Meine strümpfe sind leer...
Hello Mark!! Greetings from Brazil. I am a big fan of your channel. Quick question: Can I use a different brand of EPROM for that? I have a couple of INTEL D27C400 Eprom. I was wondering if that works as well or if I have to buy the AMD brand one. Thanks Much and Congratulations for the channel.. It's amazing!!!!
Should work fine!
I only trim AROUND my bits. Oh, soldering? Nevermind. I remember hot-swapping BIOS chips. Mod from 256k to 512k, required enable of A-18 address line, moving blocks, patching, and final checksum fix. I embedd my password where it can't be cleared.
Classic try to fix one thing and you end up having to fix 2 other things first.
Fix Amiga->Fix Kickstart ROM->Build EEPROM Adapter
It's a rabbit hole of fixing!
Gummy bears huh, well at least you don't have a dirty banana in the background of every scene😅
Yeah. You need T48 or T56 programmer to support 27C400 chips. I have T48 programmer (TL866-3G).
Can you also mention about byte swap?
I would just have soldered on new legs salvaged from a scrap chip. Fifteen minutes tops. All that matters is that the wide part hasn't broken off. Old PAL chips make great leg donors.
True, but then I wouldn’t have the adapter ;)
Great video! Love the music also. What is the name of the tune at abiut 15:00 (reading / writing eeprom)? Thank you
Let me check...
It's "I'll Never Die (instrumental Version)" by Daniel Gunnarsson - It's licenced via Epidemic Sound, but you can hear it on Spotify at this link... open.spotify.com/album/4nUk4XxumqIodMgU9sCM8Y?si=yh7jSgGjR_-wtSvN9bO-RA
Thanks for watching!
Thank you very much!
so sorry but your gummy bears have been eat lol they was delicious 👌😊🤣🤣 great video as all ways ,
Bless their poor juicy delicious souls.
Did you consider reaching out to the TL866 creator to add support to their software?
No I chance I’m afraid. The model is out of production and they’ve moved on a long time ago.
I must ask, where do you get any microchip with it’s core exposed for a person to see?
These are just standard UV erasable EPROMs. You can find them on eBay easily :)
@@MarkFixesStuff nice, I plan on making a cpu out of everything but a microprocessor, and I've come to conclusion that logic chips and ram is the way to go
Blu tack and I are mortal enemies.
Don't get it in the carpet...
Dear question, I have an EEPROM memory with a specific number that I could not find in the market. The memory size is 256 KB. Can it be replaced with another? It does not. have to be the same number, but of course the same size, or it must be the same number and the same size. The one is damaged is one time only read memory"TMS27PC256-20NL". The one i will used is UV EPROM"M87C257-20F1". With same size of course i will transfer data with programmer from TM to M8.
Can do that because idont have TM eprom. I have M8 eprom.
I looked at the spec sheets for both and the pins look to be directly compatible. With old stuff there’s never any guarantee, but there is a solid chance that the M87 will work in place of the TMS27. Good luck!
@@MarkFixesStuffi appreciate your time . We have to try i will tell you if it work. Best regards Wael.
where did you source the 27c400 chips? i wanna buy some, but im just paranoid about them potentially being fake
Aliexpress. Fake is a real danger ⚠️ I’m afraid though.
Although, looking now, I can see that all the 27c400 chips I've had from Aliexpress have been real but system pulls, which is fine for us.
@@MarkFixesStuff any specific seller youd recommend?
@@zumorr6733 Recommend is such a strong word with AliExpress hahah! I've had good luck with these guys and it's cheap so.... www.aliexpress.com/item/32963648879.html
@@MarkFixesStuff thanks, i appreciate it
I wonder was it the Smart Meter that left you without a home if so PowerGen need to look for a replacement to the Smart Meter.
Mate... I never had a smart meter
I use a very similar adaptor and EPROMs for making homebrew Sega Mega Drive / Genesis cartridges. I bought my adaptor from eBay though, feel like a bit of a fraud now!
Probably worked out a ton cheaper buying it hahah!
@@MarkFixesStuff This is often the case, unless you build 10 and sell the other 9 and who has that sort of time?
@@dantootill7644 Not me for sure mate.
Why did you decide to cut the pins before soldering?
So that the ZIF socket sits flush on the board. Once they are soldered it's harder to cut through the solder and the pin, and it also puts more stress on the solder pads. It's a pain in the bum though!
Here's something that I discovered by accident: the pins in a pin header like that will slide through the plastic when heated.
Perfect German!
Danke!
LOL Pixel to Pixel :P Peak to Peak.
Did I say that? Not suprised if I did hahah!
What is it with windows users and spaces in filenames, use bloody underbars
Sorry. I’m new to this. I’m usually a MacOS user. 😂
@@MarkFixesStuff nah no worries man. I use that same programmer under Linux with a QT gui.
"Do lutowania SMD" - 4:09 ? Polis product? :)
Yes. The best!
I don't trust Gummi Dave, I reckon he's trying to muscle in mate.
Watch him 👍.
I sleep with one eye open.
I've had things bounce under the bench just to disappear as well 😅
to the "Lost Dimension" (TM)...
@@MarkFixesStuff 😅
You should always read a PROM before writing data to it or erasing it for that matter.
Just in case erase did not work, or a bit gets stuck, or the PROM was full of data and just thrown back into the parts box.
You never known what you might find.
Yeah, I checked the Program area was blank with the utility. Once I had some "new" flash ROM chips, and they were all loaded with various DVD writer firmwares!
Use Amtech flux or an other high quantity brand. Your flux is like alcohol.. Love your videos
but... but... I love alcohol!!!!!
Seriously though, I have electrolube SMT and some paste. Thank you so much for watching and taking time to comment.
My A600s (Hyperion) 3.1 ROM is dying (Resets under an hour). Gone back to its original ROM.
Hmm. Dodgy EPROM??
@@MarkFixesStuff Got it around 2016 from an official dealer :(
@@garyhart6421 try making a copy of the 3.1 onto another eprom and see how it goes?
@@MarkFixesStuff I don't have the equipment.
How to program tms 27c240
The TL866 will natively support the 40 pin DIP 27C240 from a few vendors. I know the Fairchild/NSC (NM), Intel (D), Philips (No prefix) and Texas Instruments (TM) devices are listed in the software.
Hope this helps.
@@MarkFixesStuff thank you !
Wiping your tenderes parts with IPA? That could burn.
Schlumpfscheise - lol :)
i dont know, that i can use Schlumpf Scheiße that way
The Blue Poo.
How did you manage to break off the legs? ... also me, a year ago: how did I manage to break those off in the socket? It's a Smurf poo addiction scheme in the making 😅
Gargamel was RIGHT!
Put our parts in the holes? :P
Of course. You have to insert them to get the job done!!
@@MarkFixesStuff That 's what she said( Gorf waits for PC police....)
Interesting that you need to convert a 40 pin socket to a 48 pin for a 40 pin EPROM. 🥴
Of course, once you fixed that Kickstart ROM chip, you could've just re-inserted into the Amiga rather than burning an EEPROM.
I could have, and was tempted but the resistor leads are a bit chunkier for the EPROM socket.
I would also surmise that since a few legs had already broken off, and another broke during the filming of the video, chances are high that further breakage might ensue in the future; with a brand new EPROM that risk should be eliminated.
What??? You don't have a resistor lead bender?
No. I was on the verge of buying one, but then someone donated a small 3D printer so I need to set that up and learn how to print one!
@@MarkFixesStuff You should 3d print a foam componet mattress holder to aid with your soldering.
@@zero0ryn I have no idea what that even is. Any links at all you can share to guide my stupid brain?
@@MarkFixesStuff The foam part of this www.fortex.co.uk/wp-content/uploads/2018/03/PCSA-Circuit-Board-Holder.jpg
@@zero0ryn I like it, but... then I can't do mhy smurf poop jokes!!!! ;)
It's a really good idea to make soemthing like this. Thank you! I won't be buying that one at over 200 euro haha!
It's only just my impression or between your channel and neil's any excuse is valid to put some good old smelly flux on a pcb? I'm not judging 😉
I like my parts nice and moist.
Why wasting time and energy?
In such a case, I inserted the Crippled IC in a round pins socket and soldered all it's legs.
And that's all!
Because you might like to use all alternate ROM. I’ve fixed EPROM legs in the past with leads clipped from resistors but that would be a very short video. Thank you for watching !
"since global events destroyed my livelihood" wait what?
Please set your iron hotter. 350 at least. I enjoy your content, but watching you repeatedly make solder balls instead of joints is frustrating.
Yessir Rev! I've invested in some Kester Solder and have knocked the iron up to 350 :)
I am first
Well done! The other video was the wrong one and your comment there tipped me off to my mistake!
Back when AMD made things people wanted...
I dunno. I’d not mind a pallet of Ryzen 9 chips to shove on eBay at the moment!
Nice work, Mark. I wonder if you could tell me two things:
Will that type of EPROM work in an A1200 too? (I would obviously need two of them, ofc)
Will that adapter board work in my Batronix BX32 Batupo? (www.batronix.com/shop/programmer/BX32/batupo-I.html)
The reason I'm asking about this is that I would very much like to have Kickstart 3.1.4 installed in my "Miggy". I do have legal images FWIW.
TIA. 😃
Hiya Berty! Yes the same EPROMs work fine in an A1200 as a pair for kickstart ROMs. I don’t know about your specific programmer, but the adapter works like it is a 27C4096 device, so any programmer that can deal with those will work.
@@MarkFixesStuff Thanks for the reply. Re the EPROMs, that is as I suspected, and as for the adapter + my programmer, I can't find any information so I will just take a chance there. After all, as a new member on PCBWay I was given a $5.00 coupon which exactly covers the cost of the adapter PCB, and most of the other components either in stock or in transit, so there's little to lose, right? 😄
@@MarkFixesStuff Update: SO I've ordered those boards (minimum order 5pcs but with my coupon I only had to pay shipping and a paypal fee, $10 in total), as well as two of those EPROMS and the other bits I didn't have already. I reckon there's a strong possibility that I'll have to mod the bejeezuz out of the adapter board to achieve my goal, but whatever it takes, I am confident I can make it work, somehow. Now I just have to wait until it all arrives from China.... ho hummm 😴 couple of months by the look of it. lol
I genuinely think i was a school the last time i heard anyone say "plop"........"smurf plop".....just made me giggle all the harder🤣🤣🤣🚽
you had a little......ahem......smurf .......errr......residue on your thumb there mate😂🤣😂🟦💩