CAN-8x23 user’s manual (Revision 3.20, Ma r/08/2012) ------
79
ccs
: client command specifier
5: block upload
scs
: server command specifier
6: block upload
cs
: client subcommand
1: end block upload request
ss
: server subcommand
1: end block upload response
n
: It indicates the number of bytes in the last segment of the last
block that do not contain data. Bytes [8 -
n,
7] do not contain
segment data.
crc
: 16 bit Cyclic Redundancy Checksum (CRC) for the whole data
set.
The algorithm for generating the CRC is as follows.
x^16+x^12+x^5+1
CRC is only valid if in Initiate Block Upload
cc
and
sc
are set to
1.
Otherwise
crc
has
to
be
set
to
0.
For
CAN-8123/CAN-8223/CAN-8423, it is not support CRC check
mechanism.
x
: not used, always 0
reserved
: reserved for further use , always 0
