Ping Pong Demo; Figure 4. Ping Pong Demo Slave Display; Figure 5: Ping Pong Demo Master Display - Semtech SX1280 User Manual

3. Ping Pong Demo

A Ping Pong Test is a bidirectional test between a pair of SX1280 kits. One needs to be configured as the Ping Pong
Master and the other as the Ping Pong Slave. Communication is initiated by the Master whose packet is received by
the Slave from which the PER may be calculated.
In response to this packet the Slave sends an acknowledgement, which also contains statistical information about the
link calculated by the Slave. The Master, upon receiving this response, will then display both the PER for the Master to
Slave and the Slave to Master packet exchanges.
Press on Demo Ping Pong from the Welcome Display to access this test.
You can change the radio settings from this menu:
 Press SETTINGS to adjust the same radio settings on the Master and the
Slave units. See Section 7
Before starting the test:
- Place the Slave unit into the desired position
- Place the Master unit into the desired position
 Press SLAVE to toggle a unit to MASTER and vice-versa
To start the Ping Pong test:
 Press START first on the Slave unit then on the Master Unit
- Both units will exchange data until you press STOP on either unit.
The reception and transmission of data are indicated by LEDs on each unit.
- The result of the test is displayed on the screen of the Master unit:
Rx OK : number of packets completely received
o
Rx KO: number of packets not completely received
o
Rx PSR: Percentage Packet Success Rate for the last packet exchange
o
Rx PER: Percentage Packet Error Rate for the last packet exchange
o
Last RSSI: Received Signal Strength Indication [dBm]
o
Last SNR: Signal to Noise Ratio for the last packet exchange [dB]
o
Wireless & Sensing Products
Development Kit User Guide
UG.DEV.SX1280-1.W.APP
for more details on the radio settings.
Rev.1.0
February 2017

Figure 4. PING PONG Demo Slave Display

Figure 5: PING PONG Demo Master Display

7 of 15
Semtech