 Re: ? disk drive fault (BBC B)
|
|
Julie Andrews wrote: Thanks for your e-mail. In answer to your question, I did try a number of different discs, so it's not the discs that are at fault!
If you have a 40/80 track switchable drive, change the track setting and then try reading a disc. It may be that the discs are not compatible with Acorn DFS. They could be in ADFS format or some kind of PC format or not formatted at all. Try to format a blank disc to check that the drive is working properly. If the command *FORM40 or *FORM80 gives "Bad command" then you will need a formatting utility disc, which would probably have been supplied with your drive originally. If you downloaded the programs from the internet and put them on disc using a PC with something like FDC or Anadisk, you may find that the discs do not work under the original Acorn DFS but only with the later Acorn 1770 DFS. The disc drive may need to use different timings than the default setting. Try issuing each of the following commands one by one. After each command, press BREAK, try to catalogue or boot the disc and if no luck, try the next one: *FX255,15 *FX255,31 *FX255,47 *FX255,63 Ian |
Re: ? disk drive fault (BBC B)