GENERAL > HARDWARE/SYSTEMS DISCUSSION

Oric floppy disk controller

(1/1)

Panther:
Not sure if this is the same type as what Phu was trying to get running, would still love one for the oric !

Jasmin controller

Phu:
This is a different implementation, but basically does the same thing. It might be worth investigating at some point, if I can't determine why the damn Microdisc board won't work.

The Jasmin uses it's own power supply (rather than daisy-chaining the Oric's) and uses a positive regulator (or two) (rather than a negative regulator and a common positive rail).

It also prefers the 1770 disc controller, which is somewhat easier to get hold of that the MB8877A.

-- Richard

Prime:

--- Quote from: Phu on July 11, 2012, 01:49:15 PM ---This is a different implementation, but basically does the same thing. It might be worth investigating at some point, if I can't determine why the damn Microdisc board won't work.

--- End quote ---

:(


--- Quote ---The Jasmin uses it's own power supply (rather than daisy-chaining the Oric's) and uses a positive regulator (or two) (rather than a negative regulator and a common positive rail).

It also prefers the 1770 disc controller, which is somewhat easier to get hold of that the MB8877A.

--- End quote ---

Though 1770s are getting scarcer now :(

Isn't the MB8877A one of the WD279x clones ? No looks like they are WD179x, you may be able to adapt it to work with a WD279x tho, which has the advantage of an internal data seperator, and only needs a +5V supply.

Do you have a link to the schematic of the Microdisc ?

Cheers.

Phill.

Phu:
http://www.48katmos.freeuk.com/projects.htm

At the bottom.

-- Richard

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