Sövény Imre
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Description
Amiga IDE 68K Replica
The original schematic I used for redraw is from:
http://info.mkl211015.altervista.org/ide/ide68k.html
...so You can use the original CPLD program code to make it work.(it is in the .zip)
Tested Working.
The board emulates the internal IDE-interface of Amiga 600.
Autoboot with KS2.05 (V37.300) or above.
KS2.05 V37.299 or older roms need scsi.device.
You can add 5v (VCC,GND) from the boad to a CFcard but that is not allways enough.
Sep 01,2019
13,862 views
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Amiga IDE 68K Replica
Amiga 68000 DIP-64 socket IDE interface
13862
13
27
9.42 (3)
Published: Sep 01,2019
Download Gerber file 532
PCBWay Donate 10% cost To Author
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
Under the
Attribution-ShareAlike (CC BY-SA)
License.
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Hi! Above 50-60C⁰... it already causes a burning sensation. This circuit works (tolerant) with 5 volts, so it heats up a little more, so it can reach 80-85 degrees during operation.
Thank you for your reply. 1- my IDE with the 5v version of the CPLD board stops working after 2 minutes because of heating up. so the IDE board became unusable. 2- it boots only mechanical 3.5" HDD and can't boot from CF. I think there are two major problems: first, getting hot causes CPLD to stop working and the second one is signal levels do not match the CF logic levels. I built another board with XL 3.3v series and used 3.3v as core voltage and 5v for IO voltage. in this case, Amiga boots from CF and the board work fine with less heat and long stability. what can we understand from two IDE board behaviors?
The first one I used XC9572XL because I ordered XL by accident. I've read somewhere that XC9572 is pin compatible with XC9572XL, Vcc is max 4v but 5V tolerant, Vcc and IO pins, I've had 10 of the same PCBs and nothing to lose, so I tried, ....and it worked ....still working. I made 10 pieces, this same schematic... five with XC9572 and five with XC9572XL, programmed with the passing firmware (it in the zip file). All of them works. The XC-9572 parts from E B A Y seller "dicikey-max" The XC-9572XL parts from E B A Y seller "chipsgate"
Could you please be super specific which which firmware you used for which CPDL, since there are 4 versions in the zip.
Uhhh......It was a long time ago and I did not work with that since, but... My design is based on the work of others, from https://www.mklboards.fi/ide/ide68k.html ...and since I used xc9572xl chips and because "ii68-v4xx-140219-7l19-xc9572xl.jed" is signed as the tested version (I allways prefer tested versions) and I don't remember having any difficulty making it or having to try anything else ....I think I used that one.
https://www.aliexpress.com/item/32791545218.html?spm=a2g0o.productlist.0.0.6e223b55CVrXSq&algo_pvid=8fda9f5a-6e07-4dc8-9ed4-bd809bf75756&algo_expid=8fda9f5a-6e07-4dc8-9ed4-bd809bf75756-0&btsid=2100bde316043149660504011ef819&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_
L9.7 with plastic https://tr.aliexpress.com/item/1005003318519043.html?gatewayAdapt=glo2tur&spm=a2g0o.order_list.0.0.21ef3d1235HaHW
I have tried a couple of CPLDs. XC9572 Rev E worked fine, but my Rev C do not work. They program fine but refuse to be recognized at boot. I tried two Rev C versions with no luck. Hope it's useful info. I got a random selection when I ordered CPLDs from china, and only one was rev E. Will try to get from a reputable source like Digikey for my other boards.
Mine don't work any more. I tried it yesterday and it wouldn't boot like before. Wondering if my CPLD's are not 5V tolerant after all.
I used Xilinx/Impact software with a Xilinx USB programmer (DLC9LP)
I put it in the downloadable (not a pretty one).
PCBWAY approved the Gerber file I sent them ( I also replaced in downloadable). Now there will be no problem in production.