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ElCharro
Account closed
Registered: Dec 2008
Posts: 19 |
Not answering 1570 Floppy Disk Drive
Hello,
I am back since decades on real c64/128 Hardware.
Now I am chekcing out a very clean 128 computer with 1570 drives that do not want even load the "$" directory.
I tried to give the command Initialize typing:
Open 1,8,15,"Initialize" or something like that fully explained in the 1541 Manual bot the Floppy Drives seem to be mooving and flashing lights but at the end of the operation I still cannot load the directory or read files form the disk.
Any Hint?
Thanks a Lot!
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ElCharro
Account closed
Registered: Dec 2008
Posts: 19 |
I would spell out what is happening.
If I type
10 Open 15,8,15
20 Print# 15"Initialize"
30 Close 15
and give RUN the Floppy Disk Drive start spinning for few seconds then the red led start flashing and nothing happens.
If I do the format
Open 15,8,15,"N0:disk,00"
I do have file open error!
If I put another disk ( i.e. with games ) and type:
Load "$",8
I have
Searching for $ .
? File not found error
ready
Any hint please?
Thanks a Lot!
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Devia
Registered: Oct 2004
Posts: 401 |
If it was a 1541 drive, i'd have a closer look at the logic chips... but 1570? I have no idea how this drive is constructed.
Does anyone have a schematic for 1570 ? - I can't seem to find any :(
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Mace
Registered: May 2002
Posts: 1799 |
> 10 Open 15,8,15
> 20 Print# 15"Initialize"
> 30 Close 15
Try changing line 20 in:
20 Print#15,"initialize"
(A comma after 15 and no space after #)
> If I do the format
> Open 15,8,15,"N0:disk,00"
>
> I do have file open error!
That is because you already runned that basic program and the channel is already open.
First do CLOSE 15 and then try OPEN 15,8,15,"N0:disk,00" again.
If a disk is not formatted, loading the directory (LOAD"$",8) won't work.
So far, there's no proof that the drive is broken ;-) |
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MagerValp
Registered: Dec 2001
Posts: 1060 |
Read the drive's error channel so we can see what the actual error message is (not the message printed by basic):
LOAD"$",8
SEARCHING FOR $
?FILE NOT FOUND ERROR
READY.
10 OPEN1,8,15:INPUT#1,A,B$,C,D:CLOSE1:PRINTA;B$;C;D
RUN
21 READ ERROR 18 1 <- What's the error here with a known good disk?
Give us the errors from formatting (N0:) and initializing (I0:) as well. |
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ElCharro
Account closed
Registered: Dec 2008
Posts: 19 |
After the initialize I have
with 10 Open 1,8,15
20 Print#15,"initialize"
30 close 15
I do have
20 Read Error 18 0
So? :(
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tlr
Registered: Sep 2003
Posts: 1739 |
So, either of these:
- the disk is not formatted
- the disk is unreadable
- the drive is broken in some way
Now see what error you get if you try to format a disk.
And like stated above, make sure it's a 48 TPI double density disk. |
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ElCharro
Account closed
Registered: Dec 2008
Posts: 19 |
I am going to check if 1541 Allignment tool is good to give life to my 1541?
Who gave it a try?
I don't know how it work |
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Mace
Registered: May 2002
Posts: 1799 |
I gave it a try, but from al 15 or so drives I tested, none was out of alignment so badly that it didn't work.
Besides, you're not done testing: what is the error when you try to format?
Untill now you only tried initialising, which is not the same as formatting. |
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Jope
Registered: Jul 2004
Posts: 25 |
The 1570 is electrically 99% similar to the 1571, only the second side is missing..
Try it with the mechanism from a working 1541 to rule out alignment problems? |
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Mace
Registered: May 2002
Posts: 1799 |
Jope, we're not even sure if it's the drive that is broken or the floppies he's using. |
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