Started by revaldinho, 00:10, 25 April 18
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Quote from: Animalgril987 on 21:50, 25 January 21Ps. Do you know what the correct DIP switch settings on the memory card will be for my setup?
Quote from: Animalgril987 on 18:39, 30 January 21I'm afraid that my ram card appears to be dead. Toto's ram test shows 0k CPU ram.
Quote from: SerErris on 15:06, 19 February 22Would it be possible to setup a GAL instead of the gates logic for the eight rom, just to minimize the parts?I know that the objective was to actually do it oldschool and actually use gated logic.Do you have the schematics available, so I can easier understand the logic behind it?I also checking the verilog file right now. maybe that is something to understand the logic from as well ...
Quote from: SerErris on 16:54, 19 February 22Okay, I did build it ... no waiting for my MotherX4 to arrive ...I can build to more, if anyone is interested in one?I am in Germany, so postage will apply.
Quote from: SerErris on 11:39, 03 April 22@revaldinho I want to build a 512k RAM card for my CPC464. Can I use the XC9572 instead of the XC9536? I do see some code parts in the github repository, but as the screenshots all show the XC9536 I just wanted to make sure, that it does not break anything if I use the larger one?
Quote from: Rabs55 on 10:18, 20 May 22Firstly, I think the old school 512k ram expansion project is excellent. It has been 30+ years since I made anything like this and I love it. Now I think I am nearly there with, all the soldering completed but I would like to continuity check all my connections.Is there a pdf of the schematic I can follow?
Quote from: FD on 10:01, 23 May 22I have tried to get hold of the 464 universal expansion but I can't find one anywhere...
Quote from: revaldinho on 11:02, 23 May 22Quote from: Rabs55 on 10:18, 20 May 22Is there a pdf of the schematic I can follow?Thanks for your comments and your interest in my open source projects.I do get this question a lot, but there are no traditional schematics for any of my PCBs. I come from an ASIC/FPGA background and prefer to work with text netlists, so I made my own netlist -> Eagle PCB script tool. The actual 'schematic' for the old school board is in this netlist file .
Quote from: Rabs55 on 10:18, 20 May 22Is there a pdf of the schematic I can follow?
Quote from: revaldinho on 11:13, 23 May 22Quote from: FD on 10:01, 23 May 22I have tried to get hold of the 464 universal expansion but I can't find one anywhere...If you want to get hold of any of my projects it's always worth PMing me via the Wiki. I don't sell on eBay or anywhere else, but always happy to make up small numbers of boards for CPCWiki users. I usually build an extra one or two when making up boards to order, so I may even have one in stock. If not, I'm pretty sure I do at least have some spare PCBs and a few XC9536s to make up a small number of the 512K Universal boards at the moment - I'll check later.Just one note - I am in the UK, and will only deliver via a tracked/insured postal service. In the EU the receiver may (probably) need to pay any incoming customs duty on top of that. This can make postage disappointingly expensive for European users, and you may prefer to source boards in the EU in that case.
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