Re: Commodore PLC TIB DD-001 / Drive 2001

From: Tomas Vondracek <lhs_at_centrum.cz>
Date: Sun, 15 Apr 2018 21:14:23 +0200
Message-ID: <c07bc0fd-6576-25a1-b91c-e7a5ceac4905@centrum.cz>
I have version supplied from exp.port, but I have a "strong" PC PSU. 
But, it's terrible, when the heads are moving, the C64 screen blinks...

The save error isn't caused by a supply decrease, other experiments 
return messages "name to long" (not too long...) or "disk is write 
protected".

But there is a little progress. Disassembling revelead different offsets 
in tools and ROM.
E.g. tools calls:
JSR $89DB

but correct (and working) according to ROM is:
JSR $89D9


LHS



Spiro Trikaliotis wrote:
> * On Sun, Apr 15, 2018 at 12:37:37PM +0200 Tomas Vondracek wrote:
>
>> Anyone have the manual or experience with this drive? I can format a floppy
>> disk via SYS 32783, but I can't save any data.
>
> I do not have any experience. In fact, I never even heard about this
> drive.
>
> I did a quick search and found this page:
> http://www.retroport.de/C64_C128_Laufwerke.html
> There is a scan of two pages from the German magazine 64'er.
>
> They say that the drive is very unreliable if used with the orginal PSU,
> because it has spikes with more than 1.1A, that is too much for the PSU.
> At least for Germany, the drives that are sold should get an own PSU.
>
> This should not happen with a PSU from GB, however.
>
> Perhaps, you have the same problem?
>
> Regards,
> Spiro.
>
Received on 2018-04-15 22:00:03

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