Namespaces
namespace	anonymous_namespace{sx1262.cpp}
namespace	anonymous_namespace{sx1262_setup.cpp}
namespace	anonymous_namespace{arm_gate.cpp}
namespace	anonymous_namespace{frame.cpp}
namespace	anonymous_namespace{radio_fake.cpp}
namespace	fake

Classes
class	SpiBus
struct	PacketStatus
class	Sx1262
class	RadioControl
struct	LoraConfig
class	Sx1262Setup
class	ArmGate
struct	Frame
class	Link
class	FakeAir
class	FakeChip

Enumerations
enum class	SetupStep : uint8_t { Ok = 0 , Standby , Regulator , Tcxo , Calibrate , RfSwitch , PacketType , Frequency , ImageCalibration , PaConfig , TxParams , BufferBase , Modulation , PacketParams , IrqMap , TxClamp , SyncWord , DeviceErrors , StartRx }
enum class	RxMode : uint8_t { Continuous , DutyCycle }
enum class	ArmAction : uint8_t { None = 0 , Pending , Arm , Disarm , RejectKey , RejectTarget , RejectStale }
enum class	FrameType : uint8_t { Heartbeat = 0x01 , SelfTest = 0x02 , Arm = 0x10 , UnArm = 0x11 }
enum class	FrameStatus : uint8_t { Ok = 0 , ErrTooShort , ErrVersion , ErrLength , ErrCrc , ErrType , ErrPayload , ErrArgs }
enum class	RadioStatus : uint8_t { Ok = 0 , ErrNotFound , ErrTooLong , NoData , ErrTimeout , NotImplemented }

Functions
bool	sx1262_status_ok (uint8_t status)
uint32_t	sx1262_frequency_word (uint32_t freq_hz)
uint32_t	lora_time_on_air_us (const LoraConfig &cfg, uint8_t payload_len)
void	put_u16 (uint8_t *p, uint16_t v)
void	put_u32 (uint8_t *p, uint32_t v)
uint16_t	get_u16 (const uint8_t *p)
uint32_t	get_u32 (const uint8_t *p)
uint16_t	crc16 (const uint8_t *data, size_t len)
	CRC-16/CCITT-FALSE: poly 0x1021, init 0xFFFF, no reflection, no xorout.
FrameStatus	decode_frame (const uint8_t *buf, size_t len, Frame &out)
	Parse and validate a received packet.
FrameStatus	encode_frame (FrameType type, uint16_t seq, const uint8_t payload, uint8_t payload_len, uint8_t out, size_t out_cap, size_t &out_len)
	Build a frame into out[0..out_cap).
RadioStatus	radio_probe ()
RadioStatus	radio_receive (uint8_t *buf, uint8_t max_len, uint8_t &len)
RadioStatus	radio_send (const uint8_t *bytes, uint8_t len)

Variables
constexpr uint8_t	kOpClearIrqStatus = 0x02
constexpr uint8_t	kOpGetIrqStatus = 0x12
constexpr uint8_t	kOpGetRxBufferStatus = 0x13
constexpr uint8_t	kOpGetPacketStatus = 0x14
constexpr uint8_t	kOpReadBuffer = 0x1E
constexpr uint8_t	kOpSetRx = 0x82
constexpr uint16_t	kIrqRxDone = 1u << 1
constexpr uint16_t	kIrqHeaderErr = 1u << 5
constexpr uint16_t	kIrqCrcErr = 1u << 6
constexpr LoraConfig	kDefaultLora = {915000000u, 9, 0x04, 1, 8, 22, 0x1424}
constexpr uint32_t	kArmKey = 0xA5C3965Au
	PLACEHOLDER: lead to choose the real key before flight.
constexpr uint32_t	kArmConfirmWindowMs = 2000
	Max time between the two ARM frames.
constexpr uint8_t	kFrameVersion = 0x01
constexpr size_t	kFrameHeaderLen = 5
constexpr size_t	kFrameCrcLen = 2
constexpr size_t	kFrameOverhead = kFrameHeaderLen + kFrameCrcLen
constexpr size_t	kLoraMaxPacket = 255
constexpr size_t	kFrameMaxPayload = kLoraMaxPacket - kFrameOverhead
constexpr size_t	kFrameMaxLen = kFrameOverhead + kFrameMaxPayload
constexpr uint8_t	kHeartbeatLen = 7
	Required payload length per type.
constexpr uint8_t	kSelfTestLen = 4
constexpr uint8_t	kArmLen = 9
constexpr uint8_t	kUnArmLen = 0

Enumeration Type Documentation

◆ ArmAction

enum class radio_link::ArmAction : uint8_t

strong

Enumerator
None
Pending
Arm
Disarm
RejectKey
RejectTarget
RejectStale

Definition at line 40 of file arm_gate.h.

◆ FrameStatus

enum class radio_link::FrameStatus : uint8_t

strong

Enumerator
Ok
ErrTooShort
ErrVersion
ErrLength
ErrCrc
ErrType
ErrPayload
ErrArgs

Definition at line 59 of file frame.h.

◆ FrameType

enum class radio_link::FrameType : uint8_t

strong

Enumerator
Heartbeat
SelfTest
Arm
UnArm

Definition at line 46 of file frame.h.

◆ RadioStatus

enum class radio_link::RadioStatus : uint8_t

strong

Enumerator
Ok
ErrNotFound
ErrTooLong
NoData
ErrTimeout
NotImplemented

Definition at line 10 of file radio.h.

◆ RxMode

enum class radio_link::RxMode : uint8_t

strong

Enumerator
Continuous
DutyCycle

Definition at line 72 of file sx1262_setup.h.

◆ SetupStep

enum class radio_link::SetupStep : uint8_t

strong

Enumerator
Ok
Standby
Regulator
Tcxo
Calibrate
RfSwitch
PacketType
Frequency
ImageCalibration
PaConfig
TxParams
BufferBase
Modulation
PacketParams
IrqMap
TxClamp
SyncWord
DeviceErrors
StartRx

Definition at line 50 of file sx1262_setup.h.

Function Documentation

◆ crc16()

uint16_t radio_link::crc16	(	const uint8_t *	data,
		size_t	len )

CRC-16/CCITT-FALSE: poly 0x1021, init 0xFFFF, no reflection, no xorout.

Check value: crc16("123456789") == 0x29B1.

Definition at line 30 of file frame.cpp.

References b.

Referenced by decode_frame(), encode_frame(), raw_frame(), test_crc16_empty_is_init_value(), and test_crc16_standard_check_value().

◆ decode_frame()

FrameStatus radio_link::decode_frame	(	const uint8_t *	buf,
		size_t	len,
		Frame &	out )

Parse and validate a received packet.

On Ok, out is filled in. Checks, in order: size, version, length field, CRC, type, payload size. Nothing in out is valid unless Ok is returned.

Definition at line 63 of file frame.cpp.

References crc16(), ErrArgs, ErrCrc, ErrLength, ErrPayload, ErrTooShort, ErrType, ErrVersion, get_u16(), kFrameHeaderLen, kFrameMaxPayload, kFrameOverhead, kFrameVersion, and Ok.

◆ encode_frame()

FrameStatus radio_link::encode_frame	(	FrameType	type,
		uint16_t	seq,
		const uint8_t *	payload,
		uint8_t	payload_len,
		uint8_t *	out,
		size_t	out_cap,
		size_t &	out_len )