Strange preamp problem

Mekanik · Postby **Mekanik** » 12.02.20, 01:46

I have meet a strange situation on reading a preamp value.

If i read preamp value from terminal (CTRL+L) I have a result like: 73 03
Instead If read rom via bootloader (or same using external reader) result is 03 73

Something wrong? :shockable:

In attach 2 log of same disk ST500DM002-1BD142

k4z1 · Postby **k4z1** » 12.02.20, 08:09

In ROM the data is stored in little-endian format.
So swap the bytes and you will have the same type, as from terminal.

Mekanik · Postby **Mekanik** » 14.02.20, 10:48

Thanks for useful info but.............

Other disk: ST9500325AS

Preamp by CTRL+L -------> 5A 15
Preamp by BootCode -----> 00 54 :shockable:

!!!!!

northwind · Postby **northwind** » 17.02.20, 08:14

Mekanik wrote:Source of the post
Preamp by CTRL+L -------> 5A 15
Preamp by BootCode -----> 00 54 !!!!!

Based on your Bootcode:

Flags.................... : 009A
RRO mode................. : 0005
Preamp type.............. : 005A
Phys head maps........... : 00 01 02 03
: 00 01 02 03

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