Re: IEEE-488 adapter for 1541

From: Spiro Trikaliotis <ml-cbmhackers_at_trikaliotis.net>
Date: Sun, 7 Apr 2019 09:33:10 +0200
Message-ID: <20190407073310.e6gq2rm5z7d2n5zq_at_hermes.local.trikaliotis.net>
Hello,

* On Sat, Apr 06, 2019 at 11:05:21PM +0200 Francesco Messineo wrote:
 
> does the 2031 firmware make a write compatible format with the 4040?
> If yes, why did commodore change the 1541 code?

No, it is not. The 2031 and 1540 are not write-compatible, the early
1541 are not, but later 1541 (starting with 901229-03) are write
compatible with both 2031 and 4040:

http://cbm-hackers.2304266.n4.nabble.com/C64-IEEE-interface-tp4659295p4660079.html

http://www.softwolves.com/arkiv/cbm-hackers/11/11677.html
(have a look at the discussion of "GAP" being $08 or $09)

Regards,
Spiro.

-- 
Spiro R. Trikaliotis
http://www.trikaliotis.net/
Received on 2020-05-29 21:43:48

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