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USER MANUAL
STM 550 / EMSI
–
ENOCEAN MULTISENSOR FOR IOT APPLICATIONS
© 2020 EnOcean | www.enocean.com F-710-017, V1.0
STM 550 / EMSI User Manual | v1.3 | September 2020 | Page 47/97
8.4.8
Password authentication (PWD_AUTH) command
The protected memory area can be accessed only after successful password verification
via the PWD_AUTH command.
The PWD_AUTH command takes the password as parameter and, if successful, returns the
password authentication acknowledge, PACK.
Figure 29 below shows the password authentication sequence.
Figure 29
–
Password authentication sequence
After successful authentication, the password can be changed by writing the new password
to memory page
0x4B
.