[Coco] SDC Question

[L. Curtis Boyle]

Thanks - downloaded the image. Hopefully will get to play with it this weekend. Do you know where to get the technical specs for accessing the card "directly”, as you did, in case I need to do any modifications?

L. Curtis Boyle
curtisboyle at sasktel.net



> On Apr 28, 2017, at 4:36 PM, Barry.Nelson at amobiledevice.com wrote:
> 
>> L. Curtis Boyle curtisboyle at sasktel.net 
>> Fri Apr 28 12:50:06 EDT 2017
>> 
>> Sorry for the late reply (been busy with the Fest, work, and a ton of driving). 
>> Basically, I have a 128 MB NitrOS-9 virtual hard drive image that I use on a
>> real Coco 3, using the CocoSDC. I would like to, from within NitrOS-9 itself,
>> access the floppy DSK images as well, but I don’t see anything in the docs
>> about how to mount/change floppy DSK images while still remaining on the hard
>> drive boot. I also wouldn’t mind technical docs on how to do things on the
>> SDC card, so I can make utilities in NitrOS-9 to mount, create, etc. DSK
>> images, directories, etc. (If all of that is possible). Also, I don’t know if
>> it will mount a PC style disk image (512 byte sectors) and allow either the
>> PCDOS utility or the MSF file manager/SDisk 3 disk driver combo to directly
>> access the PC files on such a virtual disk. I can do all of this on real
>> floppies under NitrOS-9 (and what I have been doing so far is copying to/from
>> real floppies as an interim step to move files between the CocoSDC floppy
>> images and the NtirOS-9 hard drive DSK image), but would love to this all
>> without leaving NitrOS-9 at all.
>> 
>> 
>> L. Curtis Boyle
>> curtisboyle at sasktel.net
> 
> Well, floppy disk 0 and SDC "hard disk" 0 are the same drive, but I did write a
> utility called "sdc" that would allow you to mount other floppy images in drive
> 1 while in NitrOS9.
> 
> Usage: sdc [0|1] [-|SDC command]
> 
> The 0 or 1 parameter is optional and defaults to 0.
> It indicates the SDC device number.
> 
> The SDC commands are string formated as follows:
> 
> "-"           - list mounted images
> "M:filename"  - mount an image
> "N:filename"  - create an image
> "D:dirname"   - change directory
> "L:dirname"   - print directory
> "K:dirname"   - make a directory
> "X:name"      - delete a file or directory
> 
> If no letter and colon are entered, L: is added to list a directory.
> 
> The SDC hardware also supports a Rename command (R:), however this command is
> NOT supported by this program at this time.
> 
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco
>