RB8762CJF Designer’s Guide (RRD2Z50‐20190314001‐A09‐C2)
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Firmware behavior:
The current newest version is V08 and its major different with old versions are:
1.
Booting
When RB8762C is booting, its role (slave or master) will depend on the setting value.
This value can be got by AT command “at+role\r\n” and the factory default value is “2”.
1.1 If the value is “0”, RB8762C will work as a slave.
1.2 If the value is “1”, RB8762C will work as a master.
1.3 If the value is “2”, RB8762C will be decided by GPIO P1_0. If GPIO P1_0 is high,
RB8762C will be a master else it will be a slave.
2.
Role
2.1 Slave
After booting, there are 10 seconds to execute AT command. After 10 seconds, slave
will start advertising.
2.2 Master
After booting, there are 10 seconds to execute AT command. After 10 seconds, master
will connect slave device automatically if master had ever connection history else enters
AT command mode.
3.
Connection state (connected or connecting)
Master or slave can send “+++ath” to UART to quit connection and enters AT command
mode.
The old versions behavior:
The slave will advertise after booting 5 seconds and master won’t automatically connect
slave.
