8 inch drive op Win-PC (Computertechniek)

door Maurice ⌂ @, Dordrecht, 08-12-2009, 18:03 (5463 dagen geleden) @ Maurice

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Moge duidelijk zijn het probleem van de diskdrive voeding.


Heb al een warenty claim ingediend bij Datapoint na 29 jaar :)
Disk is van 5 mei 1980.

Disks kan ik nu formateren en gebruiken in de Datapoint.
500 kB SD 26x128 G1=7 G2=27 single step.

Bleek uiteindelijk de juiste setting te zijn.
Daarna gaat Datapoint er iets moois van maken.

Dus na maanden denken proberen -uitvogelen is het mij gelukt.
Floppen gereed maken voor de Datapoint.

Terug lezen in de 8"<->PC setup lukt nu niet meer na een DOSGEN
van de Datapoint.
Nog door prutsen welke instellingen genomen moeten worden.

Datapoint manual ;
"each drive accepts only qualified double density diskette media and provides
256 kB single density mode
512 kB dual density mode

Manual tell's:
Preparing diskettes for use
Received from maufacture already a format.

Only diskettes in 3740 format (128 bytes sector) are usable by Dos.C (*EDIT; I have DOS.G 2.6 running)
Disccettes in system 32 format (256 byte sector) or IBM 3600 format (512 bytes sectors) cannot be used.

Diskettes cannot be used by DOS.C until they haven been generated with DOSGEN program.
Datapoint usses its own unique file structure which is capable of more sophisticared data and file manipulation than the standard IBM.

C.10.2 Size of a diskette
there are 77 tracks each contains 13 256 byte sectors (physically 26 128 byte sectors).
First track is not used to help provide compatibility with IBM equipment, additionally the logical last sector on each track (sector 12 counts from 0) is not used by DOS.C

At the manual off DOS.G
" Dos.G supports Double-Density diskettes. Befor this can be used execute Backup or DOSGEN.
The command will allow user to quickly convert a diskette to Double dencity mode."


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