Posted By
JamesC
on 2005-10-04
08:27:26
|  Re: Using Commodore 1541 disk drive on a Commodore + 4
1) The Plus/4 does nto send any command to the 1541 upon power on. The lights on the 1541 coming on and going off, is due to programming within the 1541 and it will do this even with no computer connected.
2) The C64 does not have a PRINT DS$ command. DS$ is not a DOS variable in BASIC 2.0, but only available in BASIC 3.5 and higher (Plus/4, PET/CBM 4.0, 128 machines). PRINT DS$ on the C64 would only print a blank line, whereas on a BASIC 3.5 or higher you would see the DOS signature string (73, CBM DOS V2.6 1541, 00, 00). This is why I keep asking if you can get a response from the 1541, because if you don't get a valid DS$ on the Plus/4 then the 1541 isn't talking to it.
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