LR1110
User Manual
Rev.1.0
UM.LR1110.W.APP
March 2020
92 of 130
Semtech
For example, in order to read the results of a Wi-Fi Passive Scanning that returned 6 MAC Âddresses in Basic Results format,
the user shall send:
The result data will be sent in a stream of 6x9=54 Bytes.
The maximum number of Bytes that be read from one
WifiReadResults( )
command is 1020 Bytes. Therefore if the size to read
is greater than 1020 Bytes, the read operation shall be separated into two requests.
10.3.6 WifiResetCumulTimings
WifiResetCumulTimings( )
allows to reset the Wi-Fi Passive Scanning cumulative timings (refer to
).
This command shall be called prior to the executing the Wi-Fi Passive Scanning, in order to initialize the Wi-Fi Passive
Scanning cumulative timings if those are to be read.
Table 10-13: WifiResetCumulTimings Command
10.3.7 WifiReadCumulTimings
WifiReadCumulTimings( )
allows to read the Wi-Fi Passive Scanning cumulative timings, coded on 16Bytes, coded as in
10-14: Wi-Fi Cumulative Timings Description
. The Cumulative represents the total time in he various modes during a
WifiScan ( ) command, therefore summed up for all Wi-Fi acquisitions, over the different WifiScan ( ) parameters (Wi-Fi
Types, Wi-FI channels, ...). These timings are expressed in microseconds.
This cumulative timing can be read regularly to compute the energy consumption of the device for Wi-Fi Passive Scanning
operations. All 16 Bytes shall be read. Cumulative timing must be reset by the host.
Opcode
Wi-Fi Type
Index
NbResults
Format
0x0306
0x01
0x00
0x06
0x04
Byte
0
1
Data from Host
0x03
0x07
Data to Host
Stat1
Stat2
Table 10-14:
Wi-Fi Cumulative Timings Description
Byte
0:3
4:7
8:11
12:15
Meaning
Total duration in RX
mode with ADC on
Total duration in
preamble detection
mode
Total duration in
capture mode
Total duration in
demodulation mode
