9 Aug
2013
9 Aug
'13
11:21 a.m.
On 8/9/13 10:48 AM, Philip Pemberton wrote:
Hi,
Does anyone have any details on how write precompensation is implemented
on MFM-formatted floppy disks?
Have you looked at the National Floppy app notes and the DP8470 data sheet?
Magnetic media will "push away" pulses that are close together. You compensate
for this by starting the second write sooner (write precompensation).