Wurth Elektronik AMB2621, Руководство пользователя, Страница: 98 / 192

WIRELESS CONNECTIVITY & SENSORS
User manual Proteus-II
Bit no.
Description
2 : 0
Security mode configuration. Depending on its value, different modes are
chosen when setting up a secure connection. In firmware version 2.1.0 and
newer the peripheral decides which is the minimum security level to access its
data.
0x0
No security
Data is transmitted without authentication and
encryption.
0x2
Just works
level 1.2
Each time a connection is established, new
random keys are exchanged in advance to use
them for data encryption. This mode uses the
"just works" method.
0x3
Static pass
key level 1.3
For authentication, the
RF_StaticPasskey
is
used. If the peripheral uses this method, the
central device must enter the correct passkey to
finalize the connection.
others
Reserved
3
SECFLAGS_BONDING_ENABLE
: If this Bit is set, bonding is enabled when using one
of the pairing methods. Bonding data of up to 32 devices will be stored in the
flash. If bonding storage is full, the bonding information that has not been used
for the longest period will be removed.
7 : 4
Reserved
Table 48: Security configuration flags
8.8.1. Example 1
Set the security flags to 0x0B, to use the static passkey pairing and with bonding enabled,
using
CMD_SET_REQ
with settings index 12
Start
signal
Command Length Settings index
Parameter
CS
0x02
0x11 0x02 0x00 0x0C
0x0B
0x16
Response
CMD_SET_CNF
: Successfully modified the setting.
Start signal Command | 0x40 Length Status CS
0x02 0x51 0x01 0x00 0x00 0x52
8.8.2. Example 2
Request the security flags of the module using
CMD_GET_REQ
with settings index 12
Order code 2608011x24010
96
Version 1.11 , July 2022 www.we-online.com/wcs