Changing The Disk Device Number; Software Method - Commodore 1541 User Manual

9. CHANGING THE DISK DRIVE DEVICE NUMBER
SOFTWARE METHOD
The device number is selected by the drive by looking at a hardware jumper on the
board and writing the number based on that jumper in a section of its RAM. Once
operation is underway, it is easy to write over the previous device number with a new
one.
FORMAT FOR CHANGING DEVICE NUMBER:
PRINT#file#, "M-W:" CHR$(119) CHR$(0) CHR$(2) CHR$(address + 32)
CHR$(address+64)
EXAMPLE OF CHANGING DEVICE NUMBER (FROM 8 TO 9):
10 OPEN 15, 8, 15
20 PRINT# 15, "M-W" CHR$(119) CHR$(0) CHR$(2) CHR$(9 + 32)
CHR$(9 + 64)
. If you have more than one drive, it's sensible to change the address through hard
ware (see below). If you must, the procedure is easy. Just plug in the drives one at a
time, and change their number to the desired new values. That way you won't have any
conflicts.
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