Semtech LoRa Edge LR1110, User Manual

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LR1110
User Manual
Rev.1.0
UM.LR1110.W.APP March 2020
58 of 130
Semtech
www.semtech.com
•
CadExitMode defines the action to be done after a CAD operation.
• Timeout is only used when the CAD is performed with cadExitMode = CAD_RX. Here, Timeout indicates the time the
device will stay in Rx mode following a successful CAD.
8.3.5 LoRaSynchTimeout
The command LoRaSynchTimeout( ) configures the LoRa® modem to issue an RX timeout after exactly SymbolNum symbols
in case no packet was detected by then.
•
SymbolNum: 0x00 means no timeout. Default value is 0x00
8.3.6 SetLoRaPublicNetwork
The command SetLoRaPublicNetwork( ) sets the LoRa® modem syncword to public or private.
• PublicNetwork:

0x00= Private network (default)

0x01 =Public network
Table 8-12: CadExitMode Parameter Definition
Value CadExitMode Operation
0x00 CAD_ONLY
The chip performs the CAD operation in LoRa®. Once don and whatever the activity on the channel,
the device goes back to STBY_RC mode.
0x01 CAD_RX
The device performs a CAD operation and if an activity is detected, it stays in RX until a packet is
detected or the timer reaches the timeout defined by
CadTimeout *31.25us
0x10 CAD_LBT
The device performs a CAD operation and if no activity is detected, it goes to Tx mode with the
defined CadTimeout as timeout parameter.
Table 8-13: LoRaSynchTimeout Command
Byte 0 1 2
Data from Host 0x02 0x1B SymbolNum
Data to Host Stat1 Stat2 IrqStatus (31:24)
Table 8-14: SetLoRaPublicNetwork
Byte 0 1 2
Data from Host 0x02 0x08 PublicNetwork
Data to Host Stat1 Stat2 IrqStatus (31:24)