Dear
sir,
The device
has buffer RAM.
A host side gets the data on RAM (Device)
directly using READ BUFFER.
Usage.
1.It can use for diagnosis of a device using
WRITE BUFFER with this command.
When these are used, the influence
from a disk, a servo, etc. can be eliminated.
First, please write data to RAM by WRITE
BUFFER.
Next, please read this data by READ BUFFER.
You can compare these data.
2.Vendor unique data is gettable.
For example, hidden
information.
However, the structure of such data is not exhibited.
You cannot know such
structures from an public document.
If you want to know such structures, you
should negotiate with a each device vendors.
(Probably, an agreement
will be mandatory) .
Best regards,
Katsuki
t10
hi,
That I can't catch the meaning of READ BUFFER(0x3c) command.How to
proceess this command? And how to reply this command?
Waiting your help.
Thanks !
hust_mb
2006.7.10