re microdisc floppy controller board

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jdavis6809
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re microdisc floppy controller board

Post by jdavis6809 » Mon Sep 10, 2018 2:45 pm

hello,

I have a microdisc controller board (no case) and trying to connect to a hxc floppy controller rev c

without hxc floppy controller rev c connected atmos displays "insert system disc"

with hxc floppy controller rev c connected atmos displays "no system disc found"

using system images from emulator (oricutron) oricdos 1.13.dsk and sedoric3.dsk (have been converted to .hfc format)

also is there any special power up cycle required and pressing reset (floppy controller board)

I do have 3.5" floppy drives but cannot test as I have no 3.5" floppy system disc

regards

john

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Chema
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Re: re microdisc floppy controller board

Post by Chema » Mon Sep 10, 2018 8:19 pm

Hi jdavis6809!

I dont use an HxC with my Oric, but other users do, so they will be more helpful. In any case, we know this setup should work.

A couple of things that could be of importance, are you using an original Microdisc board? Are you confident it works ok? Are you connecting it to the Oric using an Amplibus? You know about the problems with bus signals...

Another thing I find strange is the error message. I get a "No operating system on disk" when the disk is not bootable (or the disk cannot be read without errors).

The cycle I use is booting, get bars and Oric does not boot, press reset, getting the "insert system disk" insert disk (or select image) and it boots. With cumulus I select the image, then reset, it boots.

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