29 November 2010, 22:51 | #1 |
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Join Date: Nov 2010
Location: Bari / Italy
Age: 54
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KCS Power PC Board in A2000
I'm a new user, and my hobbies are electronic and retrocomputers. I'm reading this wonderful Amiga Board from more than 2 years, but only today I have completed registering steps
Recently, I have found in a garage of a local TV an A2000 in very bad conditions: pcb near CPU & ROM with trace of corrosion cause leak of battery acid. I have changed sockets and passive components in that area and now Amiga works I have re-painted upper case in professional mode, so A2000 have now a new life. This A2000 consist in: - PCB Rev 6.2; - Kickstart 3.1 (board made by me using 2 Flash 28F002 from 2 PC boards broken); - ED Flicker Fixer; - 2Mb Chip expansion (DKB MegaChip); - GVP G-Force '030 / 40 MHz + 8Mb RAM; - GVP HC+8 Impact with 2 Mb RAM; - HD SCSI II Compaq 9.1Gb 7200 RPM. All works greats with OS3.9 and I'm very happy. I want to add a KCS Power PC Board rev 4.2 but I don't have his Zorro2 adapter, so I want to made a DIY adapter from A500 trapdoor expansion connector to Zorro2. KCS Power PC board works very well in my another Amiga (A500). If have found that is possible to add a Zorro2 to A500 via expansion side connector, but trapdoor connector have more different signals Have you some more infos? Excuse me for my bad english, but I'm italian |
29 November 2010, 23:03 | #2 |
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Hi genny, and welcome to EAB!
The A500 User's Manual lists the expansion bus pin assignments, but there are no details of the signals themselves other than which are active low. Would this information be useful to you or do you already have it? |
30 November 2010, 10:25 | #3 | |
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Quote:
KCS Board have more than 2 layers, so is a bit more difficult to understand what signals board require to work. Have you schematic of this board? Another request: it is possible to download G-Force 030 user manual? Why I not have access to The Zone? Best regards. - genny - |
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30 November 2010, 10:40 | #4 |
The 1 who ribbits
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tomthul over at amibay might have the info you are after as he created zorro slot for side expansion of an A500
http://amibay.com/showthread.php?t=4617 thank note that that thread is closed as for the zone, read the rules its not that hard to get access |
30 November 2010, 10:54 | #5 | |
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Quote:
Last edited by TCD; 30 November 2010 at 11:02. Reason: Added closing quote tag |
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30 November 2010, 12:05 | #6 |
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I doubt that KCS can work on Zorro - KCS probably use part of memory as CHIP RAM.
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30 November 2010, 12:59 | #7 |
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Location: finland
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Amiga resource:
- Interface: A500 trapdoor slot A2000 Zorro II - |
30 November 2010, 14:50 | #8 |
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Join Date: Jul 2003
Location: Helsinki / Finland
Age: 43
Posts: 9,880
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It may not be trivial. Who knows what the ASIC in the KCS A2000 adapter actually does.
http://amiga.resource.cx/photos/phot...es=med&lang=en |
30 November 2010, 16:10 | #9 | |
Precious & fragile things
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Quote:
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30 November 2010, 18:20 | #10 |
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Location: PL?
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It can be some DMAC that push data from ASIC on KCS board to proper area in CHIP RAM thus they can be used in native Amiga format directly without absorbing MC68K CPU to convert data from PC format.
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