[Coco] Can't copy real floppy to CoCo-SDC on a CoCo 2

[Gene Heskett]

On Friday 27 February 2015 15:26:59 mike at borncoco.com wrote:
> I've come full circle and am recreating the original problem. I replaced
> the bad floppy drive. I have a single floppy, terminated, jumper set to D0.
> I am able to format and write to the floppy without issue. I reconnected
> the CoCo-SDC and do the following:
>
> DRIVE 0,OFF
> DRIVE 1,"MIKE.DSK"
>
> I run "DIR 0" and I see the floppy directory.
> I run "DIR 1" and I see the SD-CARD image.
>

Good

> At this point, when I do a "DIR 1" The floppy drive motor does not run and
> the LED does not illuminate. The DRIVE command shows that drive 0 is "OFF"
> and Drive 1 is mapped to "MIKE.DSK".
>
> Now, I run "BACKUP 0 TO 1".
>
> Drive 0 LED lights up and I hear the head move 5 tracks while reading. Then
> the LED goes out on drive 0, the CoCo-SDC LED never lights up. Drive 0
> continues to run until the "?IO ERROR".

This is beyond my experience as of yet.  Perhaps Darren can help?
>
> At this point, if I issue the "DRIVE" command, an "?SN ERROR" is returned.
> If I issue a "DIR 1", the dive 0 motor starts, but the LED does not light
> up.
>
> Its not clear why SDC-DOS stops functioning at this point. Could this still
> be a wiring issue with the real floppy?
>
>
> -----Original Message-----
> From: "Gene Heskett" <gheskett at wdtv.com>
> Sent: Friday, February 27, 2015 2:45pm
> To: coco at maltedmedia.com
> Subject: Re: [Coco] Can't copy real floppy to CoCo-SDC on a CoCo 2
>
> How do the drives activity led's behave? is there any time in the attempt
> where both are on at the same time?  In which case I would verify that both
> drives are indeed jumpered to be drive 1's only.

Cheers, Gene Heskett
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