Hi, I connected the led to pin 16 (-) and pin1 (+ / 300ohm) and it still solid lights on.. after start the emulator..
.root@beaglebone:~/emu# ./mfm_emu --drive 1 --file ../emufile_a --initialize --quiet 0 --cylinders 820 --heads 6
Board revision C detected
Emulated drive RPM 3600
Drive 0 num cyl 820 num head 6 track len 20836 begin_time 0
PRU clock 200000000
Waiting, seek time 0.0 ms max 0.0 min free buffers 75
bad pattern count 0
Read queue underrun 0
Write queue overrun 0
Ecapture overrun 0
glitch count 0
glitch value 0
0:test 0 0
0:test 1 0
0:test 2 0
0:test 3 0
0:test 4 0
1:test 0 0
1:test 1 0
1:test 2 0
1:test 3 0
1:test 4 0
select 1 head 0
^C Drive 0 Cyl 0->-1 select 1, head 0 dirty 0
####################################################
Start emulate :
root@beaglebone:~/emu# ./mfm_emu --drive 1 --file ../emufile_a --quiet 0
Board revision C detected
Drive 0 num cyl 820 num head 6 track len 20836 begin_time 0
PRU clock 200000000
Waiting, seek time 0.0 ms max 0.0 min free buffers 75
bad pattern count 0
Read queue underrun 0
Write queue overrun 0
Ecapture overrun 0
glitch count 0
glitch value 0
0:test 0 0
0:test 1 0
0:test 2 0
0:test 3 0
0:test 4 0
1:test 0 0
1:test 1 0
1:test 2 0
1:test 3 0
1:test 4 0
select 1 head 0
####################################################
in SpeedStor 6.5 test seeking (that one working) all passed
select 1 head 0
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
Waiting, seek time 0.0 ms max 0.1 min free buffers 75
and more same text...
###################################################
standart initialize in SpeedStor 6.5
select 1 head 0
select 1 head 7
select 1 head 5
select 1 head 0
select 1 head 5
select 1 head 0
select 1 head 7
glitch count 1
glitch value 800
select 1 head 5
and nothing else ..
the led still solid light (no activity .. still solid light on)