Information on LSK Data Systems 3.5" floppy autoloader

LSK floppy autoloader.txt

These are the result of observing the communication between the autoloader and software that drove it, followed by poking with a terminal program.

RS232. 9600 8N1

on powerup:
prints "LSK Autoloader" and "Copyright - LSK Data Systems 1995"
S prints one char until C is run

COMMANDS:
S	status
C	calibrate/clear
I	insert
A	accept
R	reject
O	prints version number
V	prints hex string of cycle count (big endian, 32-bit)

RESPONSES:
E	error (use S to get the error code)
X	executed successfully
?	"what?" (unknown command)

STATUS CODES (OBSERVED)
07	ok / drive empty
0B	disk in drive (also ok)

27	input hopper empty

47	no disk in drive (asked to eject without disk)
4B	disk in drive (motor arm forward with disk in drive)

87	disk jam (bad bin sensor)
8B	disk jam (bad bin sensor)

97	disk jam (disk ejected from drive, but did not exit accept output)
9B	disk jam while ejecting (bad bin selected)


0000 0111 07 ok, drive empty
0000 1011 0B ok, disk in drive
0010 0111 27 input hopper empty
0100 0111 47 no disk in drive (asked to eject without disk)
0100 1011 4B disk in drive (motor arm forward with disk in drive)
1000 0111 87 disk jam (bad bin sensor)
1000 1011 8B disk jam (bad bin sensor)
1001 0111 97 disk jam (disk ejected from drive but did not exit accept output)
1001 1011 9B disk jam while ejecting (bad bin selected)