[BBC-Micro] Disk fault 0C at 00/00
info at sprow.co.uk
Fri Apr 25 07:40:37 BST 2008
In article <Pine.WNT.4.64.0804242324090.4012 at zapac>,
Anders Carlsson <anders.carlsson at sfks.se> wrote:
> Sometimes I get it to report disk fault 0B.
> In which manual can I obtain a list of disk errors and what they mean?
Application note 19 details the error numbers:
Support Group Application Note Number: 019
Copyright (C) Acorn Computers Limited 1992
Acorn Computers Limited
Cambridge CB4 4AE
DFS Error Messages
Applicable Hardware: BBC B
BBC Master 128
There have been a number of revisions of the DFS firmware and software
fitted to the various 8 bit machines. The error messages have remained
consistent throughout the revisions and this application note lists the
fault numbers with a description.
Error 08 (clock error)
During a disc read operation a clock bit was missing.
Error 0A (late DMA)
During a disc transfer the processor did not respond fast enough, most
likely due to a faulty disc interface card.
Error 0C (ID Field CRC error)
The cyclic redundancy check derived from the data read back differed from
that stored on the disc.
Error 0E (data CRC error)
The cyclic redundancy check derived form the data read back differed from
that stored on the disc during a disc read.
Error 10 (drive not ready)
During a transfer the disc stopped rotating. Often caused by a badly
Error 12 (write protect)
Disc in drive has write protect tab covered
Error 14 (track zero not found)
Controller failed to find track zero. Often an unformatted disc.
Error 18 (sector not found)
Controller failed to find required sector. Either a corrupted or an
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