Sharp MZ

@dat-alex - looking good, what package are you using, Quartus II schematic capture? I havent studied the differences between the 1772/1773 but I should image it wont take much effort to update the 1772 design. I will take a look soon as Im currently porting my Sharp MZ Series emulator to a Cyclone ...

This is just a test of the GAL (to replace the PAL) in the original board. The new boards are almost the same (different routing and copper fills) so I dont expect any gotcha's, made several tests to verify the hand drawn schematic against the physical card. Just waiting for the parts to arrive, ho...

@psmart: !!Excellent work!! (You catch me up with FDC800 replica pcb I was working in the same approach ,too!) Started designing the pcb but I decided to replace digital logic with CPLD and keep only WD1773 and inverter. I hope to manage to run CP/M on my beloved 80b soon! Maybe future approach woul...

good morning . This was exactly the same board tha inspired me of a more simpe 80B FD Controller card (as you can see in previous posts) -going one step further trying to implement digital logic in CPLD for a simpler board. (still in progress). The only thing to try is if it working with 80b but I c...

Yes I have 2 xc9536 5V from a reliable source already tested. The difficult thing is to property program these guys due a programming bug on the first chip batches.

For the moment (and due to Covid lock down) I designing a development pcb so I can verify the schematic design in real circuit.

Well after alot of searching around with no result I decided to give a try to the following (in progress) project: I took the schematic (thanks to Martin8bity) FDC800_origin.jpg and re-designed it using XC9536 for digital part and original WD1773 FDD chip FDC800_CPLD.jpg my 1773 chip just arrived ye...

I want an FDD card so I can run CP/M on my 80b.

Thank you for A3 scan S_U_C, Have a nice evening

Hi! Iam interested in Sharp Sharp MZ80b-FI any compatible card that works with my SHARP MZ80B in order to read CP/M disks

Thank you for your time

Alex

Hi my friend... Still searching for a good candidate schematic to 'emulate' via fpga design. Ia m thinking of implementig K & P FDC800 card https://original.sharpmz.org/usedskdrives.htm According to datasheet controller chip has the same mapping with original mz80b chip FDD controller So why not?