Search found 20 matches

by dat-alex
Sun Mar 07, 2021 9:59 pm
Forum: Hardware
Topic: MZ-80B project (Floppy Disk I/O Card cloning!)
Replies: 17
Views: 6065

Re: MZ-80B project (Floppy Disk I/O Card cloning!)

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.
by dat-alex
Thu Feb 25, 2021 9:08 am
Forum: Hardware
Topic: MZ-80B project (Floppy Disk I/O Card cloning!)
Replies: 17
Views: 6065

Re: MZ-80B project (Floppy Disk I/O Card cloning!)

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...
by dat-alex
Wed Feb 24, 2021 10:13 am
Forum: Buy/sell
Topic: WTB: MZ80B FDD controller card
Replies: 4
Views: 577

Re: WTB: MZ80B FDD controller card

I want an FDD card so I can run CP/M on my 80b.
by dat-alex
Thu Feb 18, 2021 7:32 pm
Forum: Hardware
Topic: MZ-80B project (Floppy Disk I/O Card cloning!)
Replies: 17
Views: 6065

Re: MZ-80B project (Floppy Disk I/O Card cloning!)

Thank you for A3 scan S_U_C, Have a nice evening
by dat-alex
Fri Jan 01, 2021 2:21 pm
Forum: Buy/sell
Topic: WTB: MZ80B FDD controller card
Replies: 4
Views: 577

WTB: MZ80B FDD controller card

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
by dat-alex
Fri Jan 01, 2021 2:05 pm
Forum: Hardware
Topic: MZ-80B project (Floppy Disk I/O Card cloning!)
Replies: 17
Views: 6065

Re: MZ-80B project (Floppy Disk I/O Card cloning!)

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?
by dat-alex
Thu Apr 16, 2020 2:18 pm
Forum: Buy/sell
Topic: Sharp MZ80b - MZ-80GMK Extension Graphics cards
Replies: 4
Views: 2884

Re: Sharp MZ80b - MZ-80GMK Extension Graphics cards

has Pok replied yet?
by dat-alex
Mon Aug 19, 2019 3:01 pm
Forum: Hardware
Topic: MZ-80B project (Floppy Disk I/O Card cloning!)
Replies: 17
Views: 6065

Re: MZ-80B project (Floppy Disk I/O Card cloning!)

Thank you both of you! for the infos.

I think this is a a long term project.
I will inform you af any proggress....
;)
by dat-alex
Thu Aug 15, 2019 2:13 pm
Forum: Hardware
Topic: MZ-80B project (Floppy Disk I/O Card cloning!)
Replies: 17
Views: 6065

Re: MZ-80B project (Floppy Disk I/O Card cloning!)

Hi! Tingo Thank you for a quick response my friend. You are asolutely right about ALL you thioughts, Let me 'walk through' one by one to express my opinion on your thoughts: - mechanical - does the card physically fit into the connector on the machine? No I think the card does not fit into MZ80B exp...
by dat-alex
Thu Aug 15, 2019 10:20 am
Forum: Hardware
Topic: MZ-80B project (Floppy Disk I/O Card cloning!)
Replies: 17
Views: 6065

Re: MZ-80B project (Floppy Disk I/O Card cloning!)

Still didn't managed to find an FDD interface card for my 80B. Do you think that an Sharp MZ1E05 will be in any way compatible with MZ80B-FI Sharp MZ80b-FI ? I know that MZ80b-FI card has no eprom and uses in-built IPL routines but do you think the rest of hardware will be compatible? Alex ;)