Rev 1.7 (April 2018) 11
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DLP Design, Inc.
DLP-RFS1280ACT Demonstration
Platform - Main Loop
START (Reset or
Power Up)
Setup Serial Comm
Through Nucleo to
Host Via USB
Read MyID From
STM32 and Init
EEPROM
Init SPI Port and
SX1280 Registers
Send MyID To Other
RFS1280ACT On
Standard Channel
Set Packet Type and
Parameters to Values
Last Used
Switch 4
Pressed
?
Enter Receive Mode on
Standard Channel and
Wait for ID Packet for
Pairing
Enter Continuous CW
Transmit Mode - Reset
Required to Exit
Switch 1
Pressed
?
Switch 3
Pressed
?
Enter Continuous CW
Transmit With
Modulation - Reset
Required to Exit
Switch 5
Pressed
?
Switch 6
Pressed
?
Enter Ping Test Mode -
One Ping Per Second -
Reset Required to Exit
Enter Ranging Mode -
Reset Required to Exit
4
1
5
2
6
3
CW
LORA
FSK
FLRC
ANT SEL
MOD
PTT
RX ID
PING
TEST
LMH
SF
RANGING
7 BUTTONS
RESET
Enter Receive Mode
Ping
Packet
Received
?
Beep Once If MyID was
Received
Audio
Packet
Received
?
Play Audio Over
Speaker if MyID was
Received
Ranging
Packet Received
?
If Correct 32-Bit ID
was Received, Enter
Ranging Slave Mode
Switch X
Pressed
?
SW1: Toggle Packet Mode
SW2: Toggle Int/Ext Antenna
SW3: Adjust Spreading Factor
SW4: Digitize and Xmit Audio
SW5: Toggle Carrier
Frequency Low/Med/High
Y
Y
Y
Y
Y
Y
Y
Y
Y
Main Loop
(See Ranging Diagram)
(Pairing)
(Pairing)
N
N
N
N
N
N
N
N
N