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General Category => Amstrad CPC hardware => Topic started by: MartinW on 23:30, 25 April 13

Title: HxC and Parados
Post by: MartinW on 23:30, 25 April 13
Will start a separate thread for this so as not to confuse things in the other one :)

My HxC works perfectly when set as drive B and using an AB/BA switch. As long that is as I'm using AMSDOS. If I switch to PARADOS (I have a dual OS) then switching to drive B and doing a directory listing returns some corrupted junk in addition to the actual files.

Is this to be expected? Is there some known incompatibility with the HxC and PARADOS?

Thanks
Title: Re: HxC and Parados
Post by: MartinW on 00:17, 26 April 13
Hmm, I just formatted the internal drive (drive B because of the AB/BA switch) using Parados |drive utility and I noticed as I was doing it that the HxC was displaying that it was merrily switching from side 0 to side 1 at the same time as the internal drive was so I've got something set up wrong here I think.

Looks like I may need to go over my setup again!
Title: Re: HxC and Parados
Post by: TFM on 01:48, 26 April 13
Quote from: MartinW on 23:30, 25 April 13
Is this to be expected?

Yes, if you suddenly switch drives, then you also have to tell ParaDos that you did that. Adjust the formats in the appropriate menu.
Title: Re: HxC and Parados
Post by: MartinW on 09:39, 26 April 13
I don't entirely understand the reply here to be honest. What menu? I'm not talking about the "|DRIVE" utility, I'm just talking about the command line OS, same as AMSDOS.

How about the fact the HxC is merrily swapping sides when I'm formatting a disc in the 3" drive, is that significant? (Now at that point I am in the "|DRIVE" utility!)
Title: Re: HxC and Parados
Post by: Bryce on 09:48, 26 April 13
I'm not 100% sure, but I believe ParaDOS has several issues with drive B:, I don't think it can handle the larger formats on B: for example. But maybe someone with more knowledge on this could confirm.

Bryce.
Title: Re: HxC and Parados
Post by: TFM on 17:07, 26 April 13
Yes, adjust the formats in IDRIVE utility for drive A.
Title: Re: HxC and Parados
Post by: Executioner on 00:43, 18 October 13
ParaDOS has a default setting bytes (at #DC00 and #DC02), these are copied to #BFAD and #BFAC respectively, which are then copied to #BAFE and #BAFF. These bytes define the sided-ness, cylinders and stepping of each drive, and also which formats are enabled by default. The standard settings are to Enable Electro formats and set Drive A: to single-sided 40 tracks, single-step and Drive B: to double-sided 80 tracks, single stepping.

With the Electro formats enabled DATA, SYSTEM and IBM formats on 80 track double-sided drives are around 700K and use more sectors for their directory hence if you insert a standard 40 track single sided disc into the drive it will read part of the first file on the disc as the directory.
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