[Coco] Format D2 80dd

[Barry Nelson]

Also, be sure to set these options when you create a new image in VCC that you wish to use as 80 track double sided…



On Sep 27, 2015, at 10:49 PM, Barry Nelson <barry.nelson at amobiledevice.com> wrote:

> I noticed you said floppy "image". I am guessing that you are formatting either a floppy image on an emulator such as VCC, or an image mounted on a DriveWire server. I will outline the procedure for these cases below. To format a real 80 track double sided floppy, you would use slightly different options so that that controller would do a low level track and sector format. That is not required or desirable on an emulator or DriveWire. These instructions are also written for NitrOS9. Microware OS-9 is slightly different.
> 
> At the prompt to format /d2 as an 80 track double sided image, do this:
> dmode /d2 sid=2 cyl=50 sct=18 t0s=18 typ=20 dns=2
> format /d2 R L 2 '80'
>       NitrOS-9 RBF Disk Formatter
> ------------  Format Data  ------------
> 
>       Floppy Disk Format: CoCo
>     Physical floppy size: 5 1/4"
>            Sectors/track: 18
>      Track zero sect/trk: 18
> Total physical cylinders: 80
>             Track Offset: 0
>            Sector Offset: 1
>  Minimum sect allocation: 8
>         Recording format: MFM
>     Track density in TPI: 96
> Number of log. cylinders: 80
>       Number of surfaces: 2
> Sector interleave offset: 3
> 
> Formatting device: /d2
> Disk name: Enter the disk name here
> 009F
> Number of good sectors: $000B40
> 
> Your disk image is now formatted and ready to use with NitrOS9. It will have a capacity of 720K.
> 
> 
>> Plt at freemail2.com plt at freemail2.com 
>> Sun Sep 27 22:13:20 EDT 2015
>> Do you mean démode /d2 and what setting should it be please?
>> 
>> 
>> Phil Taylor
>