Chengdu Ebyte Electronic Technology Co.,Ltd..
E52-400/900NW22S User Manual
Copyri
Copyright ©2012–2023, Chengdu Ebyte Electronic Technology Co.,Ltd.
23
Figure 7.5.1 Anycast communication
7.6 Introduction to routing table
The routing table is automatically established by routing requests and cannot be modified manually. It is stored in
RAM and will be lost if the module is restarted. The routing table is only for viewing paths. Users do not need to
pay attention to it. There is no need to parse AT commands on the routing table.
The routing table can be saved to Flash through the "AT+ROUTER_SAVE=1" command, and can be loaded
through the "AT+ROUTER_READ=1" command when powering on again.
If you want to clear the routing information saved in Flash, you can clear it through the "AT+ROUTER_SAVE=0"
command.
If you only want to clear the routing information in RAM, you can clear it through the "AT+ROUTER_CLR=1"
command.
The routing table can be read through the three instructions "AT+ROUTER_CLR=?", "AT+ROUTER_SAVE=?",
and "AT+ROUTER_READ=?".
The routing table contains parameters such as target address, lower-level address, score, signal strength, etc.
When the DST and HOP in the routing table are different, it means that the module needs to pass through the
routing node to reach the target module.
The routing information of NO.03 and NO.04 in the figure below together form a path to the target address 59020:
The routing information of NO.04 tells the module that if it wants to send data to the module of 59020, the next level
should send the data through the routing node of 26017.
The routing information of NO.03 tells the module that if it wants to send data to the module of 26111, the next level can
directly transmit the data to the routing node of 26111.
