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

[Pyewacket]

Any news regarding this?

[dat-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?

[S_U_C]

Hi I found a large A3 scan of the MZ-80A floppy disk card, this will work in the B if you dissable the CS/CE to the EPROM IC 3 PIN 8 to IC 5 PIN 1. add pull-up resister to IC 5 PIN 1

[dat-alex]

Thank you for A3 scan S_U_C, Have a nice evening

[dat-alex]

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)

and re-designed it using XC9536 for digital part and original WD1773 FDD chip

my 1773 chip just arrived yesterday after a lot of wait. So I can give my project a try!

I will let you know with the results