avsa242/sx1280-spin

P8X32A/Propeller, P2X8C4M64P/Propeller2 driver object for the Semtech SX1280 LoRa/GFSK/FLRC/BLE transceiver chip

sx1280-spin

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This is a P8X32A/Propeller, P2X8C4M64P/Propeller 2 driver object for the SX1280 LoRa/GFSK/FLRC/BLE transceiver.

IMPORTANT: This software is meant to be used with the spin-standard-library (P8X32A) or p2-spin-standard-library (P2X8C4M64P). Please install the applicable library first before attempting to use this code, otherwise you will be missing several files required to build the project.

Salient Features

• SPI connection at 1MHz (P1)
• Over-the-air (OTA) data rate from 125kBaud to 2MBaud (GFSK), 1.2kBaud to 63kBaud (LoRa)
• GFSK (incl. BLE), FLRC, LoRa modulation
• Set common RF parameters: Bandwidth, carrier freq, TX power (and ramp-up/down time)
• Set number of preamble bits/symbols
• Set function of SX1280's GPIO pins
• Options for increasing transmission robustness: Data whitening, CRC (1 and 2 byte)
• RSSI measurement
• Set/read/clear interrupts
• Payload received and sent flags (GFSK, BLE, FLRC only)
• Test modes: Continuous preamble, CW, frequency synthesizer modes
• Presets for common settings, data rates (LoRa DR0..7)

Requirements

P1/SPIN1:

• spin-standard-library

P2/SPIN2:

• p2-spin-standard-library

Compiler Compatibility

Processor	Language	Compiler	Backend	Status
P1	SPIN1	FlexSpin (5.9.14-beta)	Bytecode	OK
P1	SPIN1	FlexSpin (5.9.14-beta)	Native code	OK
P1	SPIN1	OpenSpin (1.00.81)	Bytecode	Untested (deprecated)
P2	SPIN2	FlexSpin (5.9.14-beta)	NuCode	Not yet implemented
P2	SPIN2	FlexSpin (5.9.14-beta)	Native code	Not yet implemented
P1	SPIN1	Brad's Spin Tool (any)	Bytecode	Unsupported
P1, P2	SPIN1, 2	Propeller Tool (any)	Bytecode	Unsupported
P1, P2	SPIN1, 2	PNut (any)	Bytecode	Unsupported

Limitations

• Very early in development - may malfunction, or outright fail to build
• Most settings that have modulation-specific settings availability are only implemented with GFSK in mind - others are planned/WIP
• UART interface not implemented (not currently planned)

sx1280-spin's Issues

Add more presets for GFSK

Currently, there's only one Preset() method for GFSK modulation (125kbps, 300kHz BW).
Find some more commonly used settings and add presets for them.

port to P2/spin2

Currently only exists for the P1

Add more GFSK presets

Currently, there's only one Preset() method for GFSK modulation (125kbps, 300kHz BW).
Find some more commonly used settings and add presets for them.