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- 11th February 1993
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- Support Group Application Note
- Number: 019
- Issue: 0
- Author:
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-
- DFS Error Messages
-
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- Applicable Hardware: BBC B
- BBC B+
- BBC Master 128
-
- Related Application Notes:
-
-
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- Copyright (C) Acorn Computers Limited 1992
-
- Every effort has been made to ensure that the information in this leaflet is
- true and correct at the time of printing. However, the products described in
- this leaflet are subject to continuous development and improvements and
- Acorn Computers Limited reserves the right to change its specifications at
- any time. Acorn Computers Limited cannot accept liability for any loss or
- damage arising from the use of any information or particulars in this
- leaflet. ACORN, ECONET and ARCHIMEDES are trademarks of Acorn Computers
- Limited.
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- Support Group
- Acorn Computers Limited
- Acorn House
- Vision Park
- Histon
- Cambridge CB4 4AE
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-
- There have been a number of revisions of the DFS firmware and software
- fitted to the various 8 bit machine. 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
- inserted disc.
-
- Error 14 (track zero not found)
-
- Controller failed to find track zero. Often an unformatted disc.
-
- Error18 (sector not found)
-
- Controller failed to find required sector. Either a corrupted or an
- unformatted disc.
-
-