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DDI-1 PCB drawing/photo's

Started by retro space, 09:10, 04 July 24

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retro space

I was wondering how the CPC interfaces with a floppy, and if it is hard to build a controller. I've a spare µPD765AC lying around.
I see the schematic here:
https://www.cpcwiki.eu/index.php/765_FDC
Does anybody know a source for the PCB layout, or photo's of it on both sides?
Teaching computer science on a high school with the CPC, P2000T, Spectrum and C64.

Bryce

I assume you didn't go to the bother of checking or searching the threads in this forum for "DDI-1 Clone" ? Otherwise you would have found the many existing layouts, clones and upgraded clones that have been designed, discussed and sold here.

Bryce. 

retro space

I'm specifically interested in the original design, as I want to compare it to another Z80 floppy computer with a NEC µPD765
Teaching computer science on a high school with the CPC, P2000T, Spectrum and C64.

eto


retro space

Quote from: eto on 21:57, 04 July 24
Quote from: retro space on 09:10, 04 July 24, or photo's of it on both sides?
https://www.cpcwiki.eu/index.php/Mainboard_Versions#DDI-1
Thanks,
Is the Zilog chip fully replacable by a NEC µPD765? What is the 40015? Is that a Z80 CTC/PIO in disguise?
Teaching computer science on a high school with the CPC, P2000T, Spectrum and C64.

pelrun

Quote from: retro space on 05:26, 05 July 24What is the 40015?
It's just the AMSDOS rom. All amstrad-marked ic's are roms except for the gate array/asic.

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