pulga-lorawan-drv - Driver for SX1272 connected to Pulga devices usin…

Users » brunnobbco » Code » pulga-lorawan-drv

Driver for SX1272 connected to Pulga devices using only DIO0 pins and polling (error states and timeout).

Dependents: pulga-mbed-lorawan-gps mbed-lorawan-pulga mbed-lorawan-pulga-testing-channel mbed-lorawan-pulga-serial_rx ... more

SX1272/SX1272_LoRaRadio.cpp@1:3bdd6f917bf5, 2020-11-12 (annotated)

Committer:: brunnobbco
Date:: Thu Nov 12 21:35:41 2020 +0000
Revision:: 1:3bdd6f917bf5
Parent:: 0:561d07a737bc
Child:: 2:6c5853c2fd72

Moved Frequency Hop irq and Cad irq to polling timers.

Who changed what in which revision?

User	Revision	Line number	New contents of line
brunnobbco	0:561d07a737bc	1	/**
brunnobbco	0:561d07a737bc	2	/ _____) _ \| \|
brunnobbco	0:561d07a737bc	3	( (____ _____ ____ _\| \|_ _____ ____\| \|__
brunnobbco	0:561d07a737bc	4	\____ \\| ___ \| (_ _) ___ \|/ ___) _ \
brunnobbco	0:561d07a737bc	5	_____) ) ____\| \| \| \|\| \|_\| ____( (___\| \| \| \|
brunnobbco	0:561d07a737bc	6	(______/\|_____)_\|_\|_\| \__)_____)\____)_\| \|_\|
brunnobbco	0:561d07a737bc	7	(C)2013 Semtech
brunnobbco	0:561d07a737bc	8	___ _____ _ ___ _ _____ ___ ___ ___ ___
brunnobbco	0:561d07a737bc	9	/ __\|_ _/_\ / __\| \|/ / __/ _ \\| _ \/ __\| __\|
brunnobbco	0:561d07a737bc	10	\__ \ \| \|/ _ \ (__\| ' <\| _\| (_) \| / (__\| _\|
brunnobbco	0:561d07a737bc	11	\|___/ \|_/_/ \_\___\|_\|\_\_\| \___/\|_\|_\\___\|___\|
brunnobbco	0:561d07a737bc	12	embedded.connectivity.solutions===============
brunnobbco	0:561d07a737bc	13
brunnobbco	0:561d07a737bc	14	Description: Radio driver for Semtech SX1272 LoRa radio chip. Implements LoRaRadio class.
brunnobbco	0:561d07a737bc	15
brunnobbco	0:561d07a737bc	16	License: Revised BSD License, see LICENSE.TXT file include in the project
brunnobbco	0:561d07a737bc	17
brunnobbco	0:561d07a737bc	18	Maintainer: Miguel Luis ( Semtech ), Gregory Cristian ( Semtech ) and Daniel Jaeckle ( STACKFORCE )
brunnobbco	0:561d07a737bc	19
brunnobbco	0:561d07a737bc	20
brunnobbco	0:561d07a737bc	21	Copyright (c) 2017, Arm Limited and affiliates.
brunnobbco	0:561d07a737bc	22
brunnobbco	0:561d07a737bc	23	SPDX-License-Identifier: BSD-3-Clause
brunnobbco	0:561d07a737bc	24	*/
brunnobbco	0:561d07a737bc	25
brunnobbco	0:561d07a737bc	26	#include <stdio.h>
brunnobbco	0:561d07a737bc	27	#include <math.h> //rint
brunnobbco	0:561d07a737bc	28	#include <string.h>
brunnobbco	0:561d07a737bc	29	#include "mbed.h"
brunnobbco	0:561d07a737bc	30
brunnobbco	0:561d07a737bc	31	#include "SX1272_LoRaRadio.h"
brunnobbco	0:561d07a737bc	32	#include "sx1272Regs-Fsk.h"
brunnobbco	0:561d07a737bc	33	#include "sx1272Regs-LoRa.h"
brunnobbco	0:561d07a737bc	34
brunnobbco	0:561d07a737bc	35	#ifdef MBED_SX1272_LORA_RADIO_SPI_FREQUENCY
brunnobbco	0:561d07a737bc	36	#define SPI_FREQUENCY MBED_SX1272_LORA_RADIO_SPI_FREQUENCY
brunnobbco	0:561d07a737bc	37	#else
brunnobbco	0:561d07a737bc	38	#define SPI_FREQUENCY 8000000
brunnobbco	0:561d07a737bc	39	#endif
brunnobbco	0:561d07a737bc	40
brunnobbco	0:561d07a737bc	41	// Sync word for Private LoRa networks
brunnobbco	0:561d07a737bc	42	#define LORA_MAC_PRIVATE_SYNCWORD 0x12
brunnobbco	0:561d07a737bc	43	// Sync word for Public LoRa networks
brunnobbco	0:561d07a737bc	44	#define LORA_MAC_PUBLIC_SYNCWORD 0x34
brunnobbco	0:561d07a737bc	45
brunnobbco	0:561d07a737bc	46	// SX1272 definitions
brunnobbco	0:561d07a737bc	47	#define XTAL_FREQ 32000000
brunnobbco	0:561d07a737bc	48	#define FREQ_STEP 61.03515625
brunnobbco	0:561d07a737bc	49
brunnobbco	0:561d07a737bc	50	enum RadioVariant {
brunnobbco	0:561d07a737bc	51	SX1272UNDEFINED = 0,
brunnobbco	0:561d07a737bc	52	SX1272MB2XAS,
brunnobbco	0:561d07a737bc	53	SX1272MB1DCS
brunnobbco	0:561d07a737bc	54	};
brunnobbco	0:561d07a737bc	55
brunnobbco	0:561d07a737bc	56	/*!
brunnobbco	0:561d07a737bc	57	* FSK bandwidth definition
brunnobbco	0:561d07a737bc	58	*/
brunnobbco	0:561d07a737bc	59	typedef struct
brunnobbco	0:561d07a737bc	60	{
brunnobbco	0:561d07a737bc	61	uint32_t bandwidth;
brunnobbco	0:561d07a737bc	62	uint8_t register_value;
brunnobbco	0:561d07a737bc	63	} fsk_bw_t;
brunnobbco	0:561d07a737bc	64
brunnobbco	0:561d07a737bc	65	/*!
brunnobbco	0:561d07a737bc	66	* Radio registers definition
brunnobbco	0:561d07a737bc	67	*/
brunnobbco	0:561d07a737bc	68	typedef struct
brunnobbco	0:561d07a737bc	69	{
brunnobbco	0:561d07a737bc	70	modem_type modem;
brunnobbco	0:561d07a737bc	71	uint8_t addr;
brunnobbco	0:561d07a737bc	72	uint8_t value;
brunnobbco	0:561d07a737bc	73	} radio_registers_t;
brunnobbco	0:561d07a737bc	74
brunnobbco	0:561d07a737bc	75	/*!
brunnobbco	0:561d07a737bc	76	* Constant values need to compute the RSSI value
brunnobbco	0:561d07a737bc	77	*/
brunnobbco	0:561d07a737bc	78	#define RSSI_OFFSET -139
brunnobbco	0:561d07a737bc	79
brunnobbco	0:561d07a737bc	80	#define RADIO_INIT_REGISTERS_VALUE \
brunnobbco	0:561d07a737bc	81	{ \
brunnobbco	0:561d07a737bc	82	{ MODEM_FSK , REG_LNA , 0x23 },\
brunnobbco	0:561d07a737bc	83	{ MODEM_FSK , REG_RXCONFIG , 0x1E },\
brunnobbco	0:561d07a737bc	84	{ MODEM_FSK , REG_RSSICONFIG , 0xD2 },\
brunnobbco	0:561d07a737bc	85	{ MODEM_FSK , REG_AFCFEI , 0x01 },\
brunnobbco	0:561d07a737bc	86	{ MODEM_FSK , REG_PREAMBLEDETECT , 0xAA },\
brunnobbco	0:561d07a737bc	87	{ MODEM_FSK , REG_OSC , 0x07 },\
brunnobbco	0:561d07a737bc	88	{ MODEM_FSK , REG_SYNCCONFIG , 0x12 },\
brunnobbco	0:561d07a737bc	89	{ MODEM_FSK , REG_SYNCVALUE1 , 0xC1 },\
brunnobbco	0:561d07a737bc	90	{ MODEM_FSK , REG_SYNCVALUE2 , 0x94 },\
brunnobbco	0:561d07a737bc	91	{ MODEM_FSK , REG_SYNCVALUE3 , 0xC1 },\
brunnobbco	0:561d07a737bc	92	{ MODEM_FSK , REG_PACKETCONFIG1 , 0xD8 },\
brunnobbco	0:561d07a737bc	93	{ MODEM_FSK , REG_FIFOTHRESH , 0x8F },\
brunnobbco	0:561d07a737bc	94	{ MODEM_FSK , REG_IMAGECAL , 0x02 },\
brunnobbco	0:561d07a737bc	95	{ MODEM_FSK , REG_DIOMAPPING1 , 0x00 },\
brunnobbco	0:561d07a737bc	96	{ MODEM_FSK , REG_DIOMAPPING2 , 0x30 },\
brunnobbco	0:561d07a737bc	97	{ MODEM_LORA, REG_LR_DETECTOPTIMIZE , 0x43 },\
brunnobbco	0:561d07a737bc	98	{ MODEM_LORA, REG_LR_PAYLOADMAXLENGTH, 0x40 },\
brunnobbco	0:561d07a737bc	99	}
brunnobbco	0:561d07a737bc	100
brunnobbco	0:561d07a737bc	101	const fsk_bw_t fsk_bandwidths[] =
brunnobbco	0:561d07a737bc	102	{
brunnobbco	0:561d07a737bc	103	{ 2600 , 0x17 },
brunnobbco	0:561d07a737bc	104	{ 3100 , 0x0F },
brunnobbco	0:561d07a737bc	105	{ 3900 , 0x07 },
brunnobbco	0:561d07a737bc	106	{ 5200 , 0x16 },
brunnobbco	0:561d07a737bc	107	{ 6300 , 0x0E },
brunnobbco	0:561d07a737bc	108	{ 7800 , 0x06 },
brunnobbco	0:561d07a737bc	109	{ 10400 , 0x15 },
brunnobbco	0:561d07a737bc	110	{ 12500 , 0x0D },
brunnobbco	0:561d07a737bc	111	{ 15600 , 0x05 },
brunnobbco	0:561d07a737bc	112	{ 20800 , 0x14 },
brunnobbco	0:561d07a737bc	113	{ 25000 , 0x0C },
brunnobbco	0:561d07a737bc	114	{ 31300 , 0x04 },
brunnobbco	0:561d07a737bc	115	{ 41700 , 0x13 },
brunnobbco	0:561d07a737bc	116	{ 50000 , 0x0B },
brunnobbco	0:561d07a737bc	117	{ 62500 , 0x03 },
brunnobbco	0:561d07a737bc	118	{ 83333 , 0x12 },
brunnobbco	0:561d07a737bc	119	{ 100000, 0x0A },
brunnobbco	0:561d07a737bc	120	{ 125000, 0x02 },
brunnobbco	0:561d07a737bc	121	{ 166700, 0x11 },
brunnobbco	0:561d07a737bc	122	{ 200000, 0x09 },
brunnobbco	0:561d07a737bc	123	{ 250000, 0x01 },
brunnobbco	0:561d07a737bc	124	{ 300000, 0x00 }, // Invalid bandwidth
brunnobbco	0:561d07a737bc	125	};
brunnobbco	0:561d07a737bc	126
brunnobbco	0:561d07a737bc	127	/**
brunnobbco	0:561d07a737bc	128	* SPI read/write masks
brunnobbco	0:561d07a737bc	129	*/
brunnobbco	0:561d07a737bc	130	#define SPI_WRITE_CMD 0x80
brunnobbco	0:561d07a737bc	131	#define SPI_READ_CMD 0x7F
brunnobbco	0:561d07a737bc	132
brunnobbco	0:561d07a737bc	133	/**
brunnobbco	0:561d07a737bc	134	* Signals
brunnobbco	0:561d07a737bc	135	*/
brunnobbco	0:561d07a737bc	136	#define SIG_DIO0 0x01
brunnobbco	0:561d07a737bc	137	#define SIG_DIO1 0x02
brunnobbco	0:561d07a737bc	138	#define SIG_DIO2 0x04
brunnobbco	0:561d07a737bc	139	#define SIG_DIO3 0x08
brunnobbco	1:3bdd6f917bf5	140	#define SIG_LRHOP 0x10
brunnobbco	1:3bdd6f917bf5	141	#define SIG_LRCAD 0x20
brunnobbco	0:561d07a737bc	142	#define SIG_TIMOUT 0x40
brunnobbco	0:561d07a737bc	143	#define SIG_RXSYNC 0x80
brunnobbco	0:561d07a737bc	144
brunnobbco	0:561d07a737bc	145	/**
brunnobbco	0:561d07a737bc	146	* Radio hardware registers initialization
brunnobbco	0:561d07a737bc	147	*/
brunnobbco	0:561d07a737bc	148	static const radio_registers_t radio_reg_init[] = RADIO_INIT_REGISTERS_VALUE;
brunnobbco	0:561d07a737bc	149
brunnobbco	0:561d07a737bc	150
brunnobbco	0:561d07a737bc	151	/**
brunnobbco	0:561d07a737bc	152	* Constructor
brunnobbco	0:561d07a737bc	153	*/
brunnobbco	0:561d07a737bc	154	SX1272_LoRaRadio::SX1272_LoRaRadio(PinName spi_mosi,
brunnobbco	0:561d07a737bc	155	PinName spi_miso,
brunnobbco	0:561d07a737bc	156	PinName spi_sclk,
brunnobbco	0:561d07a737bc	157	PinName nss,
brunnobbco	0:561d07a737bc	158	PinName reset,
brunnobbco	0:561d07a737bc	159	PinName dio0,
brunnobbco	0:561d07a737bc	160	PinName dio1,
brunnobbco	0:561d07a737bc	161	PinName dio2,
brunnobbco	0:561d07a737bc	162	PinName dio3,
brunnobbco	0:561d07a737bc	163	PinName dio4,
brunnobbco	0:561d07a737bc	164	PinName dio5,
brunnobbco	0:561d07a737bc	165	PinName rf_switch_ctl1,
brunnobbco	0:561d07a737bc	166	PinName rf_switch_ctl2,
brunnobbco	0:561d07a737bc	167	PinName txctl,
brunnobbco	0:561d07a737bc	168	PinName rxctl,
brunnobbco	0:561d07a737bc	169	PinName antswitch,
brunnobbco	0:561d07a737bc	170	PinName pwr_amp_ctl,
brunnobbco	0:561d07a737bc	171	PinName tcxo)
brunnobbco	0:561d07a737bc	172	: _spi(spi_mosi, spi_miso, spi_sclk),
brunnobbco	0:561d07a737bc	173	_chip_select(nss, 1),
brunnobbco	0:561d07a737bc	174	_reset_ctl(reset),
brunnobbco	1:3bdd6f917bf5	175	_dio0_ctl(dio0), _dio1_ctl(dio1), _dio2_ctl(dio2),
brunnobbco	0:561d07a737bc	176	_rf_switch_ctl1(rf_switch_ctl1, 0), _rf_switch_ctl2(rf_switch_ctl2, 0), _txctl(txctl, 0), _rxctl(rxctl, 0),
brunnobbco	0:561d07a737bc	177	_ant_switch(antswitch, PIN_INPUT, PullUp, 0),
brunnobbco	0:561d07a737bc	178	_pwr_amp_ctl(pwr_amp_ctl),
brunnobbco	0:561d07a737bc	179	_tcxo(tcxo)
brunnobbco	0:561d07a737bc	180
brunnobbco	0:561d07a737bc	181	#ifdef MBED_CONF_RTOS_PRESENT
brunnobbco	0:561d07a737bc	182	, irq_thread(osPriorityRealtime, 1024, NULL, "LR-SX1272")
brunnobbco	0:561d07a737bc	183	#endif
brunnobbco	0:561d07a737bc	184	{
brunnobbco	0:561d07a737bc	185	_rf_ctrls.ant_switch = antswitch;
brunnobbco	0:561d07a737bc	186	_rf_ctrls.pwr_amp_ctl = pwr_amp_ctl;
brunnobbco	0:561d07a737bc	187	_rf_ctrls.rf_switch_ctl1 = rf_switch_ctl1;
brunnobbco	0:561d07a737bc	188	_rf_ctrls.rf_switch_ctl2 = rf_switch_ctl2;
brunnobbco	0:561d07a737bc	189	_rf_ctrls.rxctl = rxctl;
brunnobbco	0:561d07a737bc	190	_rf_ctrls.txctl = txctl;
brunnobbco	0:561d07a737bc	191
brunnobbco	0:561d07a737bc	192	_dio1_pin = dio1;
brunnobbco	1:3bdd6f917bf5	193	_dio2_pin = dio2;
brunnobbco	0:561d07a737bc	194
brunnobbco	0:561d07a737bc	195	_radio_events = NULL;
brunnobbco	0:561d07a737bc	196
brunnobbco	0:561d07a737bc	197	if (tcxo != NC) {
brunnobbco	0:561d07a737bc	198	_tcxo = 1;
brunnobbco	0:561d07a737bc	199	}
brunnobbco	0:561d07a737bc	200
brunnobbco	0:561d07a737bc	201	radio_is_active = false;
brunnobbco	0:561d07a737bc	202
brunnobbco	0:561d07a737bc	203	trace_timer.reset();
brunnobbco	0:561d07a737bc	204	trace_timer.start();
brunnobbco	0:561d07a737bc	205
brunnobbco	0:561d07a737bc	206	#ifdef MBED_CONF_RTOS_PRESENT
brunnobbco	0:561d07a737bc	207	irq_thread.start(mbed::callback(this, &SX1272_LoRaRadio::rf_irq_task));
brunnobbco	0:561d07a737bc	208	#endif
brunnobbco	0:561d07a737bc	209	}
brunnobbco	0:561d07a737bc	210
brunnobbco	0:561d07a737bc	211	/**
brunnobbco	0:561d07a737bc	212	* Destructor
brunnobbco	0:561d07a737bc	213	*/
brunnobbco	0:561d07a737bc	214	SX1272_LoRaRadio::~SX1272_LoRaRadio()
brunnobbco	0:561d07a737bc	215	{
brunnobbco	0:561d07a737bc	216
brunnobbco	0:561d07a737bc	217	}
brunnobbco	0:561d07a737bc	218
brunnobbco	0:561d07a737bc	219	/*****************************************************************************
brunnobbco	0:561d07a737bc	220	* Public APIs *
brunnobbco	0:561d07a737bc	221	****************************************************************************/
brunnobbco	0:561d07a737bc	222
brunnobbco	0:561d07a737bc	223	/**
brunnobbco	0:561d07a737bc	224	* Acquire lock
brunnobbco	0:561d07a737bc	225	*/
brunnobbco	0:561d07a737bc	226	void SX1272_LoRaRadio::lock(void)
brunnobbco	0:561d07a737bc	227	{
brunnobbco	0:561d07a737bc	228	mutex.lock();
brunnobbco	0:561d07a737bc	229	}
brunnobbco	0:561d07a737bc	230
brunnobbco	0:561d07a737bc	231	/**
brunnobbco	0:561d07a737bc	232	* Release lock
brunnobbco	0:561d07a737bc	233	*/
brunnobbco	0:561d07a737bc	234	void SX1272_LoRaRadio::unlock(void)
brunnobbco	0:561d07a737bc	235	{
brunnobbco	0:561d07a737bc	236	mutex.unlock();
brunnobbco	0:561d07a737bc	237	}
brunnobbco	0:561d07a737bc	238
brunnobbco	0:561d07a737bc	239	/**
brunnobbco	0:561d07a737bc	240	* Initializes radio module
brunnobbco	0:561d07a737bc	241	*/
brunnobbco	0:561d07a737bc	242	void SX1272_LoRaRadio::init_radio(radio_events_t *events)
brunnobbco	0:561d07a737bc	243	{
brunnobbco	0:561d07a737bc	244	push_trace(SX1272_init_radio);
brunnobbco	0:561d07a737bc	245
brunnobbco	0:561d07a737bc	246	_radio_events = events;
brunnobbco	0:561d07a737bc	247
brunnobbco	0:561d07a737bc	248	// Reset the radio transceiver
brunnobbco	0:561d07a737bc	249	radio_reset();
brunnobbco	0:561d07a737bc	250
brunnobbco	0:561d07a737bc	251	// Setup radio variant type
brunnobbco	0:561d07a737bc	252	set_sx1272_variant_type();
brunnobbco	0:561d07a737bc	253
brunnobbco	0:561d07a737bc	254	// setup SPI frequency
brunnobbco	0:561d07a737bc	255	// default is 8MHz although, configurable through
brunnobbco	0:561d07a737bc	256	// SPI_FREQUENCY macro
brunnobbco	0:561d07a737bc	257	setup_spi();
brunnobbco	0:561d07a737bc	258
brunnobbco	0:561d07a737bc	259	// set radio mode to sleep
brunnobbco	0:561d07a737bc	260	set_operation_mode(RF_OPMODE_SLEEP);
brunnobbco	0:561d07a737bc	261
brunnobbco	0:561d07a737bc	262	// Setup radio registers to defaults
brunnobbco	0:561d07a737bc	263	setup_registers();
brunnobbco	0:561d07a737bc	264
brunnobbco	0:561d07a737bc	265	// set modem type - defaults to FSK here
brunnobbco	0:561d07a737bc	266	set_modem(MODEM_FSK);
brunnobbco	0:561d07a737bc	267
brunnobbco	0:561d07a737bc	268	// set state to be idle
brunnobbco	0:561d07a737bc	269	_rf_settings.state = RF_IDLE;
brunnobbco	0:561d07a737bc	270
brunnobbco	0:561d07a737bc	271	// Setup interrupts on DIO pins
brunnobbco	0:561d07a737bc	272	setup_interrupts();
brunnobbco	0:561d07a737bc	273	}
brunnobbco	0:561d07a737bc	274
brunnobbco	0:561d07a737bc	275	/**
brunnobbco	0:561d07a737bc	276	* TODO: The purpose of this API is unclear.
brunnobbco	0:561d07a737bc	277	* Need to start an internal discussion.
brunnobbco	0:561d07a737bc	278	*/
brunnobbco	0:561d07a737bc	279	bool SX1272_LoRaRadio::check_rf_frequency(uint32_t frequency)
brunnobbco	0:561d07a737bc	280	{
brunnobbco	0:561d07a737bc	281	// Implement check. Currently all frequencies are supported ? What band ?
brunnobbco	0:561d07a737bc	282	push_trace(SX1272_check_rf_frequency);
brunnobbco	0:561d07a737bc	283	return true;
brunnobbco	0:561d07a737bc	284	}
brunnobbco	0:561d07a737bc	285
brunnobbco	0:561d07a737bc	286	/**
brunnobbco	0:561d07a737bc	287	* Sets up carrier frequency
brunnobbco	0:561d07a737bc	288	*/
brunnobbco	0:561d07a737bc	289	void SX1272_LoRaRadio::set_channel(uint32_t freq)
brunnobbco	0:561d07a737bc	290	{
brunnobbco	0:561d07a737bc	291	push_trace(SX1272_set_channel);
brunnobbco	0:561d07a737bc	292	_rf_settings.channel = freq;
brunnobbco	0:561d07a737bc	293	freq = (uint32_t) ((float) freq / (float) FREQ_STEP);
brunnobbco	0:561d07a737bc	294	write_to_register(REG_FRFMSB, (uint8_t) ((freq >> 16) & 0xFF));
brunnobbco	0:561d07a737bc	295	write_to_register(REG_FRFMID, (uint8_t) ((freq >> 8) & 0xFF));
brunnobbco	0:561d07a737bc	296	write_to_register(REG_FRFLSB, (uint8_t) (freq & 0xFF));
brunnobbco	0:561d07a737bc	297	}
brunnobbco	0:561d07a737bc	298
brunnobbco	0:561d07a737bc	299	/**
brunnobbco	0:561d07a737bc	300	* Returns current status of the radio state machine
brunnobbco	0:561d07a737bc	301	*/
brunnobbco	0:561d07a737bc	302	uint8_t SX1272_LoRaRadio::get_status(void)
brunnobbco	0:561d07a737bc	303	{
brunnobbco	0:561d07a737bc	304	push_trace(SX1272_get_status);
brunnobbco	0:561d07a737bc	305	return _rf_settings.state;
brunnobbco	0:561d07a737bc	306	}
brunnobbco	0:561d07a737bc	307
brunnobbco	0:561d07a737bc	308	/**
brunnobbco	0:561d07a737bc	309	* sets the radio module to sleep
brunnobbco	0:561d07a737bc	310	*/
brunnobbco	0:561d07a737bc	311
brunnobbco	0:561d07a737bc	312	void SX1272_LoRaRadio::sleep()
brunnobbco	0:561d07a737bc	313	{
brunnobbco	0:561d07a737bc	314	push_trace(SX1272_sleep);
brunnobbco	0:561d07a737bc	315
brunnobbco	0:561d07a737bc	316	// stop timers
brunnobbco	0:561d07a737bc	317	tx_timeout_timer.detach();
brunnobbco	0:561d07a737bc	318	rx_sync_timer.detach();
brunnobbco	1:3bdd6f917bf5	319	lora_cad_timer.detach();
brunnobbco	1:3bdd6f917bf5	320	lora_hop_timer.detach();
brunnobbco	0:561d07a737bc	321
brunnobbco	0:561d07a737bc	322	// put module in sleep mode
brunnobbco	0:561d07a737bc	323	set_operation_mode(RF_OPMODE_SLEEP);
brunnobbco	0:561d07a737bc	324	}
brunnobbco	0:561d07a737bc	325
brunnobbco	0:561d07a737bc	326	/**
brunnobbco	0:561d07a737bc	327	* Sets up operation mode
brunnobbco	0:561d07a737bc	328	*/
brunnobbco	0:561d07a737bc	329	void SX1272_LoRaRadio::set_operation_mode(uint8_t mode)
brunnobbco	0:561d07a737bc	330	{
brunnobbco	0:561d07a737bc	331	push_trace(SX1272_set_operation_mode);
brunnobbco	0:561d07a737bc	332
brunnobbco	0:561d07a737bc	333	if (mode == RF_OPMODE_SLEEP) {
brunnobbco	0:561d07a737bc	334	set_low_power_mode(true);
brunnobbco	0:561d07a737bc	335	} else {
brunnobbco	0:561d07a737bc	336	set_low_power_mode(false);
brunnobbco	0:561d07a737bc	337	set_antenna_switch(mode);
brunnobbco	0:561d07a737bc	338	}
brunnobbco	0:561d07a737bc	339
brunnobbco	0:561d07a737bc	340	write_to_register(REG_OPMODE, (read_register(REG_OPMODE) & RF_OPMODE_MASK) \| mode);
brunnobbco	0:561d07a737bc	341	}
brunnobbco	0:561d07a737bc	342
brunnobbco	0:561d07a737bc	343	/**
brunnobbco	0:561d07a737bc	344	* Sets the modem type to use
brunnobbco	0:561d07a737bc	345	*
brunnobbco	0:561d07a737bc	346	* At initialization FSK is chosen. Later stack or application
brunnobbco	0:561d07a737bc	347	* can choose to change.
brunnobbco	0:561d07a737bc	348	*/
brunnobbco	0:561d07a737bc	349	void SX1272_LoRaRadio::set_modem(uint8_t modem)
brunnobbco	0:561d07a737bc	350	{
brunnobbco	0:561d07a737bc	351	push_trace(SX1272_set_modem);
brunnobbco	0:561d07a737bc	352
brunnobbco	0:561d07a737bc	353	if ((read_register(REG_OPMODE) & RFLR_OPMODE_LONGRANGEMODE_ON) != 0 ) {
brunnobbco	0:561d07a737bc	354	_rf_settings.modem = MODEM_LORA;
brunnobbco	0:561d07a737bc	355	} else {
brunnobbco	0:561d07a737bc	356	_rf_settings.modem = MODEM_FSK;
brunnobbco	0:561d07a737bc	357	}
brunnobbco	0:561d07a737bc	358
brunnobbco	0:561d07a737bc	359	if(_rf_settings.modem == modem ) {
brunnobbco	0:561d07a737bc	360	// if the modem is already set
brunnobbco	0:561d07a737bc	361	return;
brunnobbco	0:561d07a737bc	362	}
brunnobbco	0:561d07a737bc	363
brunnobbco	0:561d07a737bc	364	_rf_settings.modem = modem;
brunnobbco	0:561d07a737bc	365
brunnobbco	0:561d07a737bc	366	switch(_rf_settings.modem)
brunnobbco	0:561d07a737bc	367	{
brunnobbco	0:561d07a737bc	368	default:
brunnobbco	0:561d07a737bc	369	case MODEM_FSK:
brunnobbco	0:561d07a737bc	370	// before changing modem mode, put the module to sleep
brunnobbco	0:561d07a737bc	371	sleep();
brunnobbco	0:561d07a737bc	372	write_to_register(REG_OPMODE, (read_register(REG_OPMODE) & RFLR_OPMODE_LONGRANGEMODE_MASK)
brunnobbco	0:561d07a737bc	373	\| RFLR_OPMODE_LONGRANGEMODE_OFF);
brunnobbco	0:561d07a737bc	374
brunnobbco	0:561d07a737bc	375	// Datasheet Tables 28, 29 DIO mapping
brunnobbco	0:561d07a737bc	376	write_to_register(REG_DIOMAPPING1, 0x00); // sets DIO0-DI03 in default mode
brunnobbco	0:561d07a737bc	377	write_to_register(REG_DIOMAPPING2, 0x30); // bits 4-5 are turned on i.e.,
brunnobbco	0:561d07a737bc	378	// DIO5 and DIO4=ModeReady
brunnobbco	0:561d07a737bc	379	break;
brunnobbco	0:561d07a737bc	380	case MODEM_LORA:
brunnobbco	0:561d07a737bc	381	sleep();
brunnobbco	0:561d07a737bc	382	write_to_register(REG_OPMODE, (read_register(REG_OPMODE) & RFLR_OPMODE_LONGRANGEMODE_MASK)
brunnobbco	0:561d07a737bc	383	\| RFLR_OPMODE_LONGRANGEMODE_ON);
brunnobbco	0:561d07a737bc	384
brunnobbco	0:561d07a737bc	385	// Datasheet Tables 17 DIO mapping for LoRa
brunnobbco	0:561d07a737bc	386	// set to defaults
brunnobbco	0:561d07a737bc	387	write_to_register(REG_DIOMAPPING1, 0x00); // DIO0 - DIO3 defaults
brunnobbco	0:561d07a737bc	388	write_to_register(REG_DIOMAPPING2, 0x00); // DIO4 - DIO5 defaults
brunnobbco	0:561d07a737bc	389
brunnobbco	0:561d07a737bc	390	break;
brunnobbco	0:561d07a737bc	391	}
brunnobbco	0:561d07a737bc	392	}
brunnobbco	0:561d07a737bc	393
brunnobbco	0:561d07a737bc	394	/**
brunnobbco	0:561d07a737bc	395	* Can be used by application/stack or the driver itself
brunnobbco	0:561d07a737bc	396	* Ref: Datasheet 7.2.2 Manual Reset
brunnobbco	0:561d07a737bc	397	*/
brunnobbco	0:561d07a737bc	398	void SX1272_LoRaRadio::radio_reset()
brunnobbco	0:561d07a737bc	399	{
brunnobbco	0:561d07a737bc	400	push_trace(SX1272_radio_reset);
brunnobbco	0:561d07a737bc	401	_reset_ctl.output();
brunnobbco	0:561d07a737bc	402	_reset_ctl = 0;
brunnobbco	0:561d07a737bc	403	wait_ms(2);
brunnobbco	0:561d07a737bc	404	_reset_ctl.input();
brunnobbco	0:561d07a737bc	405	wait_ms(6);
brunnobbco	0:561d07a737bc	406	}
brunnobbco	0:561d07a737bc	407
brunnobbco	0:561d07a737bc	408	/**
brunnobbco	0:561d07a737bc	409	* Sets up receiver related configurations
brunnobbco	0:561d07a737bc	410	*
brunnobbco	0:561d07a737bc	411	* Must be called before setting the radio in rx mode
brunnobbco	0:561d07a737bc	412	*/
brunnobbco	0:561d07a737bc	413	void SX1272_LoRaRadio::set_rx_config(radio_modems_t modem, uint32_t bandwidth,
brunnobbco	0:561d07a737bc	414	uint32_t datarate, uint8_t coderate,
brunnobbco	0:561d07a737bc	415	uint32_t bandwidth_afc, uint16_t preamble_len,
brunnobbco	0:561d07a737bc	416	uint16_t symb_timeout, bool fix_len,
brunnobbco	0:561d07a737bc	417	uint8_t payload_len,
brunnobbco	0:561d07a737bc	418	bool crc_on, bool freq_hop_on, uint8_t hop_period,
brunnobbco	0:561d07a737bc	419	bool iq_inverted, bool rx_continuous)
brunnobbco	0:561d07a737bc	420	{
brunnobbco	0:561d07a737bc	421	push_trace(SX1272_set_rx_config);
brunnobbco	0:561d07a737bc	422	set_modem(modem);
brunnobbco	0:561d07a737bc	423
brunnobbco	0:561d07a737bc	424	switch (modem) {
brunnobbco	0:561d07a737bc	425	case MODEM_FSK:
brunnobbco	0:561d07a737bc	426	_rf_settings.fsk.bandwidth = bandwidth;
brunnobbco	0:561d07a737bc	427	_rf_settings.fsk.datarate = datarate;
brunnobbco	0:561d07a737bc	428	_rf_settings.fsk.bandwidth_afc = bandwidth_afc;
brunnobbco	0:561d07a737bc	429	_rf_settings.fsk.fix_len = fix_len;
brunnobbco	0:561d07a737bc	430	_rf_settings.fsk.payload_len = payload_len;
brunnobbco	0:561d07a737bc	431	_rf_settings.fsk.crc_on = crc_on;
brunnobbco	0:561d07a737bc	432	_rf_settings.fsk.iq_inverted = iq_inverted;
brunnobbco	0:561d07a737bc	433	_rf_settings.fsk.rx_continuous = rx_continuous;
brunnobbco	0:561d07a737bc	434	_rf_settings.fsk.preamble_len = preamble_len;
brunnobbco	0:561d07a737bc	435	_rf_settings.fsk.rx_single_timeout = (symb_timeout + 1) / 2; // dividing by 2 as our detector size is 2 symbols (16 bytes)
brunnobbco	0:561d07a737bc	436
brunnobbco	0:561d07a737bc	437	datarate = (uint16_t) ((float) XTAL_FREQ / (float) datarate);
brunnobbco	0:561d07a737bc	438	write_to_register(REG_BITRATEMSB, (uint8_t) (datarate >> 8));
brunnobbco	0:561d07a737bc	439	write_to_register(REG_BITRATELSB, (uint8_t) (datarate & 0xFF));
brunnobbco	0:561d07a737bc	440
brunnobbco	0:561d07a737bc	441	write_to_register(REG_RXBW, get_fsk_bw_reg_val(bandwidth));
brunnobbco	0:561d07a737bc	442	write_to_register(REG_AFCBW, get_fsk_bw_reg_val(bandwidth_afc));
brunnobbco	0:561d07a737bc	443
brunnobbco	0:561d07a737bc	444	write_to_register(REG_PREAMBLEMSB, (uint8_t) ((preamble_len >> 8) & 0xFF));
brunnobbco	0:561d07a737bc	445	write_to_register(REG_PREAMBLELSB, (uint8_t) (preamble_len & 0xFF));
brunnobbco	0:561d07a737bc	446
brunnobbco	0:561d07a737bc	447	if (fix_len == 1) {
brunnobbco	0:561d07a737bc	448	write_to_register(REG_PAYLOADLENGTH, payload_len);
brunnobbco	0:561d07a737bc	449	} else {
brunnobbco	0:561d07a737bc	450	write_to_register(REG_PAYLOADLENGTH, 0xFF); // Set payload length to the maximum
brunnobbco	0:561d07a737bc	451	}
brunnobbco	0:561d07a737bc	452
brunnobbco	0:561d07a737bc	453	write_to_register(REG_PACKETCONFIG1, (read_register(REG_PACKETCONFIG1) & RF_PACKETCONFIG1_CRC_MASK
brunnobbco	0:561d07a737bc	454	& RF_PACKETCONFIG1_PACKETFORMAT_MASK)
brunnobbco	0:561d07a737bc	455	\| ((fix_len == 1) ?
brunnobbco	0:561d07a737bc	456	RF_PACKETCONFIG1_PACKETFORMAT_FIXED :
brunnobbco	0:561d07a737bc	457	RF_PACKETCONFIG1_PACKETFORMAT_VARIABLE)
brunnobbco	0:561d07a737bc	458	\| (crc_on << 4));
brunnobbco	0:561d07a737bc	459
brunnobbco	0:561d07a737bc	460	// TODO why packet mode 2 ?
brunnobbco	0:561d07a737bc	461	write_to_register(REG_PACKETCONFIG2, (read_register(REG_PACKETCONFIG2) \| RF_PACKETCONFIG2_DATAMODE_PACKET));
brunnobbco	0:561d07a737bc	462
brunnobbco	0:561d07a737bc	463	break;
brunnobbco	0:561d07a737bc	464
brunnobbco	0:561d07a737bc	465	case MODEM_LORA:
brunnobbco	0:561d07a737bc	466	_rf_settings.lora.bandwidth = bandwidth;
brunnobbco	0:561d07a737bc	467	_rf_settings.lora.datarate = datarate;
brunnobbco	0:561d07a737bc	468	_rf_settings.lora.coderate = coderate;
brunnobbco	0:561d07a737bc	469	_rf_settings.lora.preamble_len = preamble_len;
brunnobbco	0:561d07a737bc	470	_rf_settings.lora.fix_len = fix_len;
brunnobbco	0:561d07a737bc	471	_rf_settings.lora.payload_len = payload_len;
brunnobbco	0:561d07a737bc	472	_rf_settings.lora.crc_on = crc_on;
brunnobbco	0:561d07a737bc	473	_rf_settings.lora.freq_hop_on = freq_hop_on;
brunnobbco	0:561d07a737bc	474	_rf_settings.lora.hop_period = hop_period;
brunnobbco	0:561d07a737bc	475	_rf_settings.lora.iq_inverted = iq_inverted;
brunnobbco	0:561d07a737bc	476	_rf_settings.lora.rx_continuous = rx_continuous;
brunnobbco	0:561d07a737bc	477
brunnobbco	0:561d07a737bc	478	if (datarate > 12) {
brunnobbco	0:561d07a737bc	479	datarate = 12;
brunnobbco	0:561d07a737bc	480	} else if (datarate < 6) {
brunnobbco	0:561d07a737bc	481	datarate = 6;
brunnobbco	0:561d07a737bc	482	}
brunnobbco	0:561d07a737bc	483
brunnobbco	0:561d07a737bc	484	if (((bandwidth == 0) && ((datarate == 11) \|\| (datarate == 12)))
brunnobbco	0:561d07a737bc	485	\|\| ((bandwidth == 1) && (datarate == 12))) {
brunnobbco	0:561d07a737bc	486	_rf_settings.lora.low_datarate_optimize = 0x01;
brunnobbco	0:561d07a737bc	487	} else {
brunnobbco	0:561d07a737bc	488	_rf_settings.lora.low_datarate_optimize = 0x00;
brunnobbco	0:561d07a737bc	489	}
brunnobbco	0:561d07a737bc	490
brunnobbco	0:561d07a737bc	491	write_to_register(REG_LR_MODEMCONFIG1, (read_register(REG_LR_MODEMCONFIG1) & RFLR_MODEMCONFIG1_BW_MASK
brunnobbco	0:561d07a737bc	492	& RFLR_MODEMCONFIG1_CODINGRATE_MASK
brunnobbco	0:561d07a737bc	493	& RFLR_MODEMCONFIG1_IMPLICITHEADER_MASK
brunnobbco	0:561d07a737bc	494	& RFLR_MODEMCONFIG1_RXPAYLOADCRC_MASK & RFLR_MODEMCONFIG1_LOWDATARATEOPTIMIZE_MASK)
brunnobbco	0:561d07a737bc	495	\| (bandwidth << 6)
brunnobbco	0:561d07a737bc	496	\| (coderate << 3) \| (fix_len << 2) \| (crc_on << 1)
brunnobbco	0:561d07a737bc	497	\| _rf_settings.lora.low_datarate_optimize);
brunnobbco	0:561d07a737bc	498
brunnobbco	0:561d07a737bc	499	write_to_register(REG_LR_MODEMCONFIG2, (read_register(REG_LR_MODEMCONFIG2) & RFLR_MODEMCONFIG2_SF_MASK
brunnobbco	0:561d07a737bc	500	& RFLR_MODEMCONFIG2_SYMBTIMEOUTMSB_MASK)
brunnobbco	0:561d07a737bc	501	\| (datarate << 4)
brunnobbco	0:561d07a737bc	502	\| ((symb_timeout >> 8)
brunnobbco	0:561d07a737bc	503	& ~RFLR_MODEMCONFIG2_SYMBTIMEOUTMSB_MASK));
brunnobbco	0:561d07a737bc	504
brunnobbco	0:561d07a737bc	505	write_to_register(REG_LR_SYMBTIMEOUTLSB, (uint8_t) (symb_timeout & 0xFF));
brunnobbco	0:561d07a737bc	506
brunnobbco	0:561d07a737bc	507	write_to_register(REG_LR_PREAMBLEMSB, (uint8_t) ((preamble_len >> 8) & 0xFF));
brunnobbco	0:561d07a737bc	508	write_to_register(REG_LR_PREAMBLELSB, (uint8_t) (preamble_len & 0xFF));
brunnobbco	0:561d07a737bc	509
brunnobbco	0:561d07a737bc	510	if (fix_len == 1) {
brunnobbco	0:561d07a737bc	511	write_to_register(REG_LR_PAYLOADLENGTH, payload_len);
brunnobbco	0:561d07a737bc	512	}
brunnobbco	0:561d07a737bc	513
brunnobbco	0:561d07a737bc	514	if (_rf_settings.lora.freq_hop_on == true) {
brunnobbco	0:561d07a737bc	515	write_to_register( REG_LR_PLLHOP, (read_register(REG_LR_PLLHOP) & RFLR_PLLHOP_FASTHOP_MASK)
brunnobbco	0:561d07a737bc	516	\| RFLR_PLLHOP_FASTHOP_ON);
brunnobbco	0:561d07a737bc	517	write_to_register( REG_LR_HOPPERIOD, _rf_settings.lora.hop_period);
brunnobbco	0:561d07a737bc	518	}
brunnobbco	0:561d07a737bc	519
brunnobbco	0:561d07a737bc	520	if (datarate == 6) {
brunnobbco	0:561d07a737bc	521	write_to_register( REG_LR_DETECTOPTIMIZE, (read_register(REG_LR_DETECTOPTIMIZE) & RFLR_DETECTIONOPTIMIZE_MASK)
brunnobbco	0:561d07a737bc	522	\| RFLR_DETECTIONOPTIMIZE_SF6);
brunnobbco	0:561d07a737bc	523	write_to_register( REG_LR_DETECTIONTHRESHOLD, RFLR_DETECTIONTHRESH_SF6);
brunnobbco	0:561d07a737bc	524	} else {
brunnobbco	0:561d07a737bc	525	write_to_register(REG_LR_DETECTOPTIMIZE, (read_register(REG_LR_DETECTOPTIMIZE) & RFLR_DETECTIONOPTIMIZE_MASK)
brunnobbco	0:561d07a737bc	526	\| RFLR_DETECTIONOPTIMIZE_SF7_TO_SF12);
brunnobbco	0:561d07a737bc	527	write_to_register( REG_LR_DETECTIONTHRESHOLD, RFLR_DETECTIONTHRESH_SF7_TO_SF12);
brunnobbco	0:561d07a737bc	528	}
brunnobbco	0:561d07a737bc	529
brunnobbco	0:561d07a737bc	530	break;
brunnobbco	0:561d07a737bc	531
brunnobbco	0:561d07a737bc	532	default:
brunnobbco	0:561d07a737bc	533	break;
brunnobbco	0:561d07a737bc	534	}
brunnobbco	0:561d07a737bc	535	}
brunnobbco	0:561d07a737bc	536
brunnobbco	0:561d07a737bc	537	/**
brunnobbco	0:561d07a737bc	538	* Sets up transmitter related configuration
brunnobbco	0:561d07a737bc	539	*
brunnobbco	0:561d07a737bc	540	* Must be called before putting the radio module in Tx mode or trying
brunnobbco	0:561d07a737bc	541	* to send
brunnobbco	0:561d07a737bc	542	*/
brunnobbco	0:561d07a737bc	543	void SX1272_LoRaRadio::set_tx_config(radio_modems_t modem, int8_t power,
brunnobbco	0:561d07a737bc	544	uint32_t fdev, uint32_t bandwidth,
brunnobbco	0:561d07a737bc	545	uint32_t datarate, uint8_t coderate,
brunnobbco	0:561d07a737bc	546	uint16_t preamble_len, bool fix_len,
brunnobbco	0:561d07a737bc	547	bool crc_on, bool freq_hop_on,
brunnobbco	0:561d07a737bc	548	uint8_t hop_period, bool iq_inverted,
brunnobbco	0:561d07a737bc	549	uint32_t timeout)
brunnobbco	0:561d07a737bc	550	{
brunnobbco	0:561d07a737bc	551	push_trace(SX1272_set_tx_config);
brunnobbco	0:561d07a737bc	552	set_modem(modem);
brunnobbco	0:561d07a737bc	553	set_rf_tx_power(power);
brunnobbco	0:561d07a737bc	554
brunnobbco	0:561d07a737bc	555	switch (modem) {
brunnobbco	0:561d07a737bc	556	case MODEM_FSK:
brunnobbco	0:561d07a737bc	557	_rf_settings.fsk.power = power;
brunnobbco	0:561d07a737bc	558	_rf_settings.fsk.f_dev = fdev;
brunnobbco	0:561d07a737bc	559	_rf_settings.fsk.bandwidth = bandwidth;
brunnobbco	0:561d07a737bc	560	_rf_settings.fsk.datarate = datarate;
brunnobbco	0:561d07a737bc	561	_rf_settings.fsk.preamble_len = preamble_len;
brunnobbco	0:561d07a737bc	562	_rf_settings.fsk.fix_len = fix_len;
brunnobbco	0:561d07a737bc	563	_rf_settings.fsk.crc_on = crc_on;
brunnobbco	0:561d07a737bc	564	_rf_settings.fsk.iq_inverted = iq_inverted;
brunnobbco	0:561d07a737bc	565	_rf_settings.fsk.tx_timeout = timeout;
brunnobbco	0:561d07a737bc	566
brunnobbco	0:561d07a737bc	567	fdev = (uint16_t) ((float) fdev / (float) FREQ_STEP);
brunnobbco	0:561d07a737bc	568	write_to_register( REG_FDEVMSB, (uint8_t) (fdev >> 8));
brunnobbco	0:561d07a737bc	569	write_to_register( REG_FDEVLSB, (uint8_t) (fdev & 0xFF));
brunnobbco	0:561d07a737bc	570
brunnobbco	0:561d07a737bc	571	datarate = (uint16_t) ((float) XTAL_FREQ / (float) datarate);
brunnobbco	0:561d07a737bc	572	write_to_register( REG_BITRATEMSB, (uint8_t) (datarate >> 8));
brunnobbco	0:561d07a737bc	573	write_to_register( REG_BITRATELSB, (uint8_t) (datarate & 0xFF));
brunnobbco	0:561d07a737bc	574
brunnobbco	0:561d07a737bc	575	write_to_register( REG_PREAMBLEMSB, (preamble_len >> 8) & 0x00FF);
brunnobbco	0:561d07a737bc	576	write_to_register( REG_PREAMBLELSB, preamble_len & 0xFF);
brunnobbco	0:561d07a737bc	577
brunnobbco	0:561d07a737bc	578
brunnobbco	0:561d07a737bc	579	write_to_register(REG_PACKETCONFIG1, (read_register(REG_PACKETCONFIG1)
brunnobbco	0:561d07a737bc	580	& RF_PACKETCONFIG1_CRC_MASK
brunnobbco	0:561d07a737bc	581	& RF_PACKETCONFIG1_PACKETFORMAT_MASK)
brunnobbco	0:561d07a737bc	582	\| ((fix_len == 1) ?
brunnobbco	0:561d07a737bc	583	RF_PACKETCONFIG1_PACKETFORMAT_FIXED :
brunnobbco	0:561d07a737bc	584	RF_PACKETCONFIG1_PACKETFORMAT_VARIABLE)
brunnobbco	0:561d07a737bc	585	\| (crc_on << 4));
brunnobbco	0:561d07a737bc	586
brunnobbco	0:561d07a737bc	587	//cfg_mode = read_register(REG_PACKETCONFIG2);
brunnobbco	0:561d07a737bc	588	write_to_register(REG_PACKETCONFIG2, read_register(REG_PACKETCONFIG2)
brunnobbco	0:561d07a737bc	589	\| RF_PACKETCONFIG2_DATAMODE_PACKET);
brunnobbco	0:561d07a737bc	590
brunnobbco	0:561d07a737bc	591	break;
brunnobbco	0:561d07a737bc	592
brunnobbco	0:561d07a737bc	593	case MODEM_LORA:
brunnobbco	0:561d07a737bc	594	_rf_settings.lora.power = power;
brunnobbco	0:561d07a737bc	595	_rf_settings.lora.bandwidth = bandwidth;
brunnobbco	0:561d07a737bc	596	_rf_settings.lora.datarate = datarate;
brunnobbco	0:561d07a737bc	597	_rf_settings.lora.coderate = coderate;
brunnobbco	0:561d07a737bc	598	_rf_settings.lora.preamble_len = preamble_len;
brunnobbco	0:561d07a737bc	599	_rf_settings.lora.fix_len = fix_len;
brunnobbco	0:561d07a737bc	600	_rf_settings.lora.freq_hop_on = freq_hop_on;
brunnobbco	0:561d07a737bc	601	_rf_settings.lora.hop_period = hop_period;
brunnobbco	0:561d07a737bc	602	_rf_settings.lora.crc_on = crc_on;
brunnobbco	0:561d07a737bc	603	_rf_settings.lora.iq_inverted = iq_inverted;
brunnobbco	0:561d07a737bc	604	_rf_settings.lora.tx_timeout = timeout;
brunnobbco	0:561d07a737bc	605
brunnobbco	0:561d07a737bc	606	if (datarate > 12) {
brunnobbco	0:561d07a737bc	607	datarate = 12;
brunnobbco	0:561d07a737bc	608	} else if (datarate < 6) {
brunnobbco	0:561d07a737bc	609	datarate = 6;
brunnobbco	0:561d07a737bc	610	}
brunnobbco	0:561d07a737bc	611	if (((bandwidth == 0) && ((datarate == 11) \|\| (datarate == 12)))
brunnobbco	0:561d07a737bc	612	\|\| ((bandwidth == 1) && (datarate == 12))) {
brunnobbco	0:561d07a737bc	613	_rf_settings.lora.low_datarate_optimize = 0x01;
brunnobbco	0:561d07a737bc	614	} else {
brunnobbco	0:561d07a737bc	615	_rf_settings.lora.low_datarate_optimize = 0x00;
brunnobbco	0:561d07a737bc	616	}
brunnobbco	0:561d07a737bc	617
brunnobbco	0:561d07a737bc	618	if (_rf_settings.lora.freq_hop_on == true) {
brunnobbco	0:561d07a737bc	619	write_to_register(REG_LR_PLLHOP, (read_register(REG_LR_PLLHOP)
brunnobbco	0:561d07a737bc	620	& RFLR_PLLHOP_FASTHOP_MASK)
brunnobbco	0:561d07a737bc	621	\| RFLR_PLLHOP_FASTHOP_ON);
brunnobbco	0:561d07a737bc	622	write_to_register(REG_LR_HOPPERIOD, _rf_settings.lora.hop_period);
brunnobbco	0:561d07a737bc	623	}
brunnobbco	0:561d07a737bc	624
brunnobbco	0:561d07a737bc	625	write_to_register(REG_LR_MODEMCONFIG1, (read_register(REG_LR_MODEMCONFIG1) &
brunnobbco	0:561d07a737bc	626	RFLR_MODEMCONFIG1_BW_MASK &
brunnobbco	0:561d07a737bc	627	RFLR_MODEMCONFIG1_CODINGRATE_MASK &
brunnobbco	0:561d07a737bc	628	RFLR_MODEMCONFIG1_IMPLICITHEADER_MASK &
brunnobbco	0:561d07a737bc	629	RFLR_MODEMCONFIG1_RXPAYLOADCRC_MASK &
brunnobbco	0:561d07a737bc	630	RFLR_MODEMCONFIG1_LOWDATARATEOPTIMIZE_MASK)
brunnobbco	0:561d07a737bc	631	\| (bandwidth << 6) \| (coderate << 3)
brunnobbco	0:561d07a737bc	632	\| (fix_len << 2) \| (crc_on << 1)
brunnobbco	0:561d07a737bc	633	\| _rf_settings.lora.low_datarate_optimize);
brunnobbco	0:561d07a737bc	634
brunnobbco	0:561d07a737bc	635	write_to_register(REG_LR_MODEMCONFIG2,
brunnobbco	0:561d07a737bc	636	(read_register(REG_LR_MODEMCONFIG2) &
brunnobbco	0:561d07a737bc	637	RFLR_MODEMCONFIG2_SF_MASK) \| (datarate << 4));
brunnobbco	0:561d07a737bc	638
brunnobbco	0:561d07a737bc	639	write_to_register( REG_LR_PREAMBLEMSB, (preamble_len >> 8) & 0x00FF);
brunnobbco	0:561d07a737bc	640	write_to_register( REG_LR_PREAMBLELSB, preamble_len & 0xFF);
brunnobbco	0:561d07a737bc	641
brunnobbco	0:561d07a737bc	642	if (datarate == 6) {
brunnobbco	0:561d07a737bc	643	write_to_register(REG_LR_DETECTOPTIMIZE,
brunnobbco	0:561d07a737bc	644	(read_register(REG_LR_DETECTOPTIMIZE) &
brunnobbco	0:561d07a737bc	645	RFLR_DETECTIONOPTIMIZE_MASK) \|
brunnobbco	0:561d07a737bc	646	RFLR_DETECTIONOPTIMIZE_SF6);
brunnobbco	0:561d07a737bc	647	write_to_register( REG_LR_DETECTIONTHRESHOLD,
brunnobbco	0:561d07a737bc	648	RFLR_DETECTIONTHRESH_SF6);
brunnobbco	0:561d07a737bc	649	} else {
brunnobbco	0:561d07a737bc	650	write_to_register(REG_LR_DETECTOPTIMIZE,
brunnobbco	0:561d07a737bc	651	(read_register(REG_LR_DETECTOPTIMIZE) &
brunnobbco	0:561d07a737bc	652	RFLR_DETECTIONOPTIMIZE_MASK) \|
brunnobbco	0:561d07a737bc	653	RFLR_DETECTIONOPTIMIZE_SF7_TO_SF12);
brunnobbco	0:561d07a737bc	654	write_to_register(REG_LR_DETECTIONTHRESHOLD,
brunnobbco	0:561d07a737bc	655	RFLR_DETECTIONTHRESH_SF7_TO_SF12);
brunnobbco	0:561d07a737bc	656	}
brunnobbco	0:561d07a737bc	657
brunnobbco	0:561d07a737bc	658	break;
brunnobbco	0:561d07a737bc	659	}
brunnobbco	0:561d07a737bc	660	}
brunnobbco	0:561d07a737bc	661
brunnobbco	0:561d07a737bc	662	/**
brunnobbco	0:561d07a737bc	663	* Calculates time on Air i.e., dwell time for a single packet
brunnobbco	0:561d07a737bc	664	*
brunnobbco	0:561d07a737bc	665	* Crucial for the stack in order to calculate dwell time so as to control
brunnobbco	0:561d07a737bc	666	* duty cycling.
brunnobbco	0:561d07a737bc	667	*/
brunnobbco	0:561d07a737bc	668	uint32_t SX1272_LoRaRadio::time_on_air(radio_modems_t modem, uint8_t pkt_len)
brunnobbco	0:561d07a737bc	669	{
brunnobbco	0:561d07a737bc	670	uint32_t airtime = 0;
brunnobbco	0:561d07a737bc	671
brunnobbco	0:561d07a737bc	672	push_trace(SX1272_time_on_air);
brunnobbco	0:561d07a737bc	673
brunnobbco	0:561d07a737bc	674	switch (modem) {
brunnobbco	0:561d07a737bc	675	case MODEM_FSK: {
brunnobbco	0:561d07a737bc	676	airtime = rint((8 * (_rf_settings.fsk.preamble_len
brunnobbco	0:561d07a737bc	677	+ ((read_register( REG_SYNCCONFIG)
brunnobbco	0:561d07a737bc	678	& ~RF_SYNCCONFIG_SYNCSIZE_MASK) + 1)
brunnobbco	0:561d07a737bc	679	+ ((_rf_settings.fsk.fix_len == 0x01) ?
brunnobbco	0:561d07a737bc	680	0.0f : 1.0f)
brunnobbco	0:561d07a737bc	681	+ (((read_register( REG_PACKETCONFIG1)
brunnobbco	0:561d07a737bc	682	& ~RF_PACKETCONFIG1_ADDRSFILTERING_MASK)
brunnobbco	0:561d07a737bc	683	!= 0x00) ? 1.0f : 0) + pkt_len
brunnobbco	0:561d07a737bc	684	+ ((_rf_settings.fsk.crc_on == 0x01) ?
brunnobbco	0:561d07a737bc	685	2.0f : 0))
brunnobbco	0:561d07a737bc	686	/ _rf_settings.fsk.datarate) * 1000);
brunnobbco	0:561d07a737bc	687	}
brunnobbco	0:561d07a737bc	688	break;
brunnobbco	0:561d07a737bc	689	case MODEM_LORA: {
brunnobbco	0:561d07a737bc	690	float bw = 0.0f;
brunnobbco	0:561d07a737bc	691	switch (_rf_settings.lora.bandwidth) {
brunnobbco	0:561d07a737bc	692	case 0: // 125 kHz
brunnobbco	0:561d07a737bc	693	bw = 125000;
brunnobbco	0:561d07a737bc	694	break;
brunnobbco	0:561d07a737bc	695	case 1: // 250 kHz
brunnobbco	0:561d07a737bc	696	bw = 250000;
brunnobbco	0:561d07a737bc	697	break;
brunnobbco	0:561d07a737bc	698	case 2: // 500 kHz
brunnobbco	0:561d07a737bc	699	bw = 500000;
brunnobbco	0:561d07a737bc	700	break;
brunnobbco	0:561d07a737bc	701	}
brunnobbco	0:561d07a737bc	702
brunnobbco	0:561d07a737bc	703	// Symbol rate : time for one symbol (secs)
brunnobbco	0:561d07a737bc	704	float rs = bw / (1 << _rf_settings.lora.datarate);
brunnobbco	0:561d07a737bc	705	float ts = 1 / rs;
brunnobbco	0:561d07a737bc	706	// time of preamble
brunnobbco	0:561d07a737bc	707	float preamble_time = (_rf_settings.lora.preamble_len + 4.25f) * ts;
brunnobbco	0:561d07a737bc	708	// Symbol length of payload and time
brunnobbco	0:561d07a737bc	709	float tmp = ceil((8 * pkt_len - 4 * _rf_settings.lora.datarate + 28
brunnobbco	0:561d07a737bc	710	+ 16 * _rf_settings.lora.crc_on -
brunnobbco	0:561d07a737bc	711	(_rf_settings.lora.fix_len ? 20 : 0))
brunnobbco	0:561d07a737bc	712	/ (float) (4 * (_rf_settings.lora.datarate -
brunnobbco	0:561d07a737bc	713	((_rf_settings.lora.low_datarate_optimize
brunnobbco	0:561d07a737bc	714	> 0) ? 2 : 0)))) *
brunnobbco	0:561d07a737bc	715	(_rf_settings.lora.coderate + 4);
brunnobbco	0:561d07a737bc	716	float n_payload = 8 + ((tmp > 0) ? tmp : 0);
brunnobbco	0:561d07a737bc	717	float t_payload = n_payload * ts;
brunnobbco	0:561d07a737bc	718	// Time on air
brunnobbco	0:561d07a737bc	719	float t_onair = preamble_time + t_payload;
brunnobbco	0:561d07a737bc	720	// return ms secs
brunnobbco	0:561d07a737bc	721	airtime = floor(t_onair * 1000 + 0.999f);
brunnobbco	0:561d07a737bc	722	}
brunnobbco	0:561d07a737bc	723	break;
brunnobbco	0:561d07a737bc	724	}
brunnobbco	0:561d07a737bc	725	return airtime;
brunnobbco	0:561d07a737bc	726	}
brunnobbco	0:561d07a737bc	727
brunnobbco	0:561d07a737bc	728	/**
brunnobbco	0:561d07a737bc	729	* Prepares and sends the radio packet out in the air
brunnobbco	0:561d07a737bc	730	*/
brunnobbco	0:561d07a737bc	731	void SX1272_LoRaRadio::send(uint8_t *buffer, uint8_t size)
brunnobbco	0:561d07a737bc	732	{
brunnobbco	0:561d07a737bc	733	uint32_t tx_timeout = 0;
brunnobbco	0:561d07a737bc	734
brunnobbco	0:561d07a737bc	735	push_trace(SX1272_send);
brunnobbco	0:561d07a737bc	736
brunnobbco	0:561d07a737bc	737	switch (_rf_settings.modem) {
brunnobbco	0:561d07a737bc	738	case MODEM_FSK:
brunnobbco	0:561d07a737bc	739
brunnobbco	0:561d07a737bc	740	_rf_settings.fsk_packet_handler.nb_bytes = 0;
brunnobbco	0:561d07a737bc	741	_rf_settings.fsk_packet_handler.size = size;
brunnobbco	0:561d07a737bc	742
brunnobbco	0:561d07a737bc	743	// FIFO operations can not take place in Sleep mode
brunnobbco	0:561d07a737bc	744	if ((read_register(REG_OPMODE) & ~RF_OPMODE_MASK) == RF_OPMODE_SLEEP) {
brunnobbco	0:561d07a737bc	745	standby();
brunnobbco	0:561d07a737bc	746	wait_ms(1);
brunnobbco	0:561d07a737bc	747	}
brunnobbco	0:561d07a737bc	748
brunnobbco	0:561d07a737bc	749	if (_rf_settings.fsk.fix_len == false) {
brunnobbco	0:561d07a737bc	750	write_fifo((uint8_t *) &size, 1);
brunnobbco	0:561d07a737bc	751	} else {
brunnobbco	0:561d07a737bc	752	write_to_register(REG_PAYLOADLENGTH, size);
brunnobbco	0:561d07a737bc	753	}
brunnobbco	0:561d07a737bc	754
brunnobbco	0:561d07a737bc	755	if ((size > 0) && (size <= 64)) {
brunnobbco	0:561d07a737bc	756	_rf_settings.fsk_packet_handler.chunk_size = size;
brunnobbco	0:561d07a737bc	757	} else {
brunnobbco	0:561d07a737bc	758	memcpy(_data_buffer, buffer, size);
brunnobbco	0:561d07a737bc	759	_rf_settings.fsk_packet_handler.chunk_size = 32;
brunnobbco	0:561d07a737bc	760	}
brunnobbco	0:561d07a737bc	761
brunnobbco	0:561d07a737bc	762	// write payload buffer
brunnobbco	0:561d07a737bc	763	write_fifo(buffer, _rf_settings.fsk_packet_handler.chunk_size);
brunnobbco	0:561d07a737bc	764	_rf_settings.fsk_packet_handler.nb_bytes +=
brunnobbco	0:561d07a737bc	765	_rf_settings.fsk_packet_handler.chunk_size;
brunnobbco	0:561d07a737bc	766	tx_timeout = _rf_settings.fsk.tx_timeout;
brunnobbco	0:561d07a737bc	767
brunnobbco	0:561d07a737bc	768	break;
brunnobbco	0:561d07a737bc	769	case MODEM_LORA:
brunnobbco	0:561d07a737bc	770	if (_rf_settings.lora.iq_inverted == true) {
brunnobbco	0:561d07a737bc	771	write_to_register(REG_LR_INVERTIQ, ((read_register(REG_LR_INVERTIQ) &
brunnobbco	0:561d07a737bc	772	RFLR_INVERTIQ_TX_MASK &
brunnobbco	0:561d07a737bc	773	RFLR_INVERTIQ_RX_MASK) \|
brunnobbco	0:561d07a737bc	774	RFLR_INVERTIQ_RX_OFF \| RFLR_INVERTIQ_TX_ON));
brunnobbco	0:561d07a737bc	775	write_to_register(REG_LR_INVERTIQ2, RFLR_INVERTIQ2_ON);
brunnobbco	0:561d07a737bc	776	} else {
brunnobbco	0:561d07a737bc	777	write_to_register(REG_LR_INVERTIQ, ((read_register(REG_LR_INVERTIQ) &
brunnobbco	0:561d07a737bc	778	RFLR_INVERTIQ_TX_MASK &
brunnobbco	0:561d07a737bc	779	RFLR_INVERTIQ_RX_MASK) \|
brunnobbco	0:561d07a737bc	780	RFLR_INVERTIQ_RX_OFF \| RFLR_INVERTIQ_TX_OFF));
brunnobbco	0:561d07a737bc	781	write_to_register( REG_LR_INVERTIQ2, RFLR_INVERTIQ2_OFF);
brunnobbco	0:561d07a737bc	782	}
brunnobbco	0:561d07a737bc	783
brunnobbco	0:561d07a737bc	784	_rf_settings.lora_packet_handler.size = size;
brunnobbco	0:561d07a737bc	785
brunnobbco	0:561d07a737bc	786	// Initializes the payload size
brunnobbco	0:561d07a737bc	787	write_to_register(REG_LR_PAYLOADLENGTH, size);
brunnobbco	0:561d07a737bc	788
brunnobbco	0:561d07a737bc	789	// Full buffer used for Tx
brunnobbco	0:561d07a737bc	790	write_to_register(REG_LR_FIFOTXBASEADDR, 0);
brunnobbco	0:561d07a737bc	791	write_to_register(REG_LR_FIFOADDRPTR, 0);
brunnobbco	0:561d07a737bc	792
brunnobbco	0:561d07a737bc	793	// FIFO operations can not take place in Sleep mode
brunnobbco	0:561d07a737bc	794	if ((read_register(REG_OPMODE) & ~RF_OPMODE_MASK) == RF_OPMODE_SLEEP) {
brunnobbco	0:561d07a737bc	795	standby();
brunnobbco	0:561d07a737bc	796	wait_ms(1);
brunnobbco	0:561d07a737bc	797	}
brunnobbco	0:561d07a737bc	798	// write payload buffer
brunnobbco	0:561d07a737bc	799	write_fifo(buffer, size);
brunnobbco	0:561d07a737bc	800	tx_timeout = _rf_settings.lora.tx_timeout;
brunnobbco	0:561d07a737bc	801
brunnobbco	0:561d07a737bc	802	break;
brunnobbco	0:561d07a737bc	803	}
brunnobbco	0:561d07a737bc	804
brunnobbco	0:561d07a737bc	805	// transmit
brunnobbco	0:561d07a737bc	806	transmit(tx_timeout);
brunnobbco	0:561d07a737bc	807	}
brunnobbco	0:561d07a737bc	808
brunnobbco	0:561d07a737bc	809	/**
brunnobbco	0:561d07a737bc	810	* Actual TX - Transmit routine
brunnobbco	0:561d07a737bc	811	*
brunnobbco	0:561d07a737bc	812	* A DIO0 interrupt let the state machine know that a a packet is
brunnobbco	0:561d07a737bc	813	* successfully sent, otherwise a TxTimeout is invoked.
brunnobbco	0:561d07a737bc	814	* TxTimeout should never happen in normal circumstances as the radio should
brunnobbco	0:561d07a737bc	815	* be able to send a packet out in the air no matter what.
brunnobbco	0:561d07a737bc	816	*/
brunnobbco	0:561d07a737bc	817	void SX1272_LoRaRadio::transmit(uint32_t timeout)
brunnobbco	0:561d07a737bc	818	{
brunnobbco	0:561d07a737bc	819	push_trace(SX1272_transmit);
brunnobbco	0:561d07a737bc	820
brunnobbco	0:561d07a737bc	821	switch (_rf_settings.modem) {
brunnobbco	0:561d07a737bc	822
brunnobbco	0:561d07a737bc	823	case MODEM_FSK:
brunnobbco	0:561d07a737bc	824	// DIO0=PacketSent
brunnobbco	0:561d07a737bc	825	// DIO1=FifoEmpty
brunnobbco	0:561d07a737bc	826	// DIO2=FifoFull
brunnobbco	0:561d07a737bc	827	// DIO3=FifoEmpty
brunnobbco	0:561d07a737bc	828	// DIO4=LowBat
brunnobbco	0:561d07a737bc	829	// DIO5=ModeReady
brunnobbco	0:561d07a737bc	830	write_to_register(REG_DIOMAPPING1,(read_register(REG_DIOMAPPING1) &
brunnobbco	0:561d07a737bc	831	RF_DIOMAPPING1_DIO0_MASK &
brunnobbco	0:561d07a737bc	832	RF_DIOMAPPING1_DIO1_MASK &
brunnobbco	0:561d07a737bc	833	RF_DIOMAPPING1_DIO2_MASK) \|
brunnobbco	0:561d07a737bc	834	RF_DIOMAPPING1_DIO1_01);
brunnobbco	0:561d07a737bc	835
brunnobbco	0:561d07a737bc	836	write_to_register(REG_DIOMAPPING2, (read_register(REG_DIOMAPPING2) &
brunnobbco	0:561d07a737bc	837	RF_DIOMAPPING2_DIO4_MASK &
brunnobbco	0:561d07a737bc	838	RF_DIOMAPPING2_MAP_MASK));
brunnobbco	0:561d07a737bc	839	_rf_settings.fsk_packet_handler.fifo_thresh =
brunnobbco	0:561d07a737bc	840	read_register(REG_FIFOTHRESH) & 0x3F;
brunnobbco	0:561d07a737bc	841
brunnobbco	0:561d07a737bc	842	printf("transmit fsk!\n");
brunnobbco	0:561d07a737bc	843
brunnobbco	0:561d07a737bc	844	break;
brunnobbco	0:561d07a737bc	845
brunnobbco	0:561d07a737bc	846	case MODEM_LORA:
brunnobbco	0:561d07a737bc	847
brunnobbco	1:3bdd6f917bf5	848	if (_rf_settings.lora.freq_hop_on == true)
brunnobbco	1:3bdd6f917bf5	849	{
brunnobbco	0:561d07a737bc	850	write_to_register(REG_LR_IRQFLAGSMASK,
brunnobbco	0:561d07a737bc	851	RFLR_IRQFLAGS_RXTIMEOUT \|
brunnobbco	0:561d07a737bc	852	RFLR_IRQFLAGS_RXDONE \|
brunnobbco	0:561d07a737bc	853	RFLR_IRQFLAGS_PAYLOADCRCERROR \|
brunnobbco	0:561d07a737bc	854	RFLR_IRQFLAGS_VALIDHEADER \|
brunnobbco	0:561d07a737bc	855	RFLR_IRQFLAGS_CADDONE \|
brunnobbco	0:561d07a737bc	856	RFLR_IRQFLAGS_CADDETECTED);
brunnobbco	0:561d07a737bc	857
brunnobbco	0:561d07a737bc	858	// DIO0=tx_done, DIO2=fhss_change_channel
brunnobbco	0:561d07a737bc	859
brunnobbco	0:561d07a737bc	860	write_to_register(REG_DIOMAPPING1, (read_register(REG_DIOMAPPING1) &
brunnobbco	0:561d07a737bc	861	RFLR_DIOMAPPING1_DIO0_MASK &
brunnobbco	0:561d07a737bc	862	RFLR_DIOMAPPING1_DIO2_MASK) \|
brunnobbco	0:561d07a737bc	863	RFLR_DIOMAPPING1_DIO0_01 \|
brunnobbco	0:561d07a737bc	864	RFLR_DIOMAPPING1_DIO2_01);
brunnobbco	1:3bdd6f917bf5	865	}
brunnobbco	1:3bdd6f917bf5	866	else
brunnobbco	1:3bdd6f917bf5	867	{
brunnobbco	0:561d07a737bc	868	write_to_register(REG_LR_IRQFLAGSMASK,
brunnobbco	0:561d07a737bc	869	RFLR_IRQFLAGS_RXTIMEOUT \|
brunnobbco	0:561d07a737bc	870	RFLR_IRQFLAGS_RXDONE \|
brunnobbco	0:561d07a737bc	871	RFLR_IRQFLAGS_PAYLOADCRCERROR \|
brunnobbco	0:561d07a737bc	872	RFLR_IRQFLAGS_VALIDHEADER \|
brunnobbco	0:561d07a737bc	873	RFLR_IRQFLAGS_CADDONE \|
brunnobbco	0:561d07a737bc	874	RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL \|
brunnobbco	0:561d07a737bc	875	RFLR_IRQFLAGS_CADDETECTED);
brunnobbco	0:561d07a737bc	876
brunnobbco	0:561d07a737bc	877	// DIO0=tx_done
brunnobbco	0:561d07a737bc	878	write_to_register(REG_DIOMAPPING1,(read_register(REG_DIOMAPPING1) &
brunnobbco	0:561d07a737bc	879	RFLR_DIOMAPPING1_DIO0_MASK) \|
brunnobbco	0:561d07a737bc	880	RFLR_DIOMAPPING1_DIO0_01);
brunnobbco	0:561d07a737bc	881	}
brunnobbco	0:561d07a737bc	882
brunnobbco	0:561d07a737bc	883	break;
brunnobbco	0:561d07a737bc	884	}
brunnobbco	0:561d07a737bc	885
brunnobbco	0:561d07a737bc	886	_rf_settings.state = RF_TX_RUNNING;
brunnobbco	1:3bdd6f917bf5	887
brunnobbco	0:561d07a737bc	888	tx_timeout_timer.attach_us(callback(this, &SX1272_LoRaRadio::timeout_irq_isr),
brunnobbco	0:561d07a737bc	889	timeout * 1000);
brunnobbco	1:3bdd6f917bf5	890
brunnobbco	1:3bdd6f917bf5	891	if ((_rf_settings.modem == MODEM_LORA) && (_rf_settings.lora.freq_hop_on == true))
brunnobbco	1:3bdd6f917bf5	892	{
brunnobbco	1:3bdd6f917bf5	893	lora_hop_timer.attach_us(callback(this, &SX1272_LoRaRadio::lrhop_irq_isr), 1000);
brunnobbco	1:3bdd6f917bf5	894	}
brunnobbco	1:3bdd6f917bf5	895
brunnobbco	0:561d07a737bc	896	set_operation_mode(RF_OPMODE_TRANSMITTER);
brunnobbco	0:561d07a737bc	897	}
brunnobbco	0:561d07a737bc	898
brunnobbco	0:561d07a737bc	899	/**
brunnobbco	0:561d07a737bc	900	* Sets the radio module in receive mode
brunnobbco	0:561d07a737bc	901	*
brunnobbco	0:561d07a737bc	902	* A DIO4 interrupt let's the state machine know that a preamble is detected
brunnobbco	0:561d07a737bc	903	* and finally a DIO0 interrupt let's the state machine know that a packet is
brunnobbco	0:561d07a737bc	904	* ready to be read from the FIFO
brunnobbco	0:561d07a737bc	905	*/
brunnobbco	0:561d07a737bc	906	void SX1272_LoRaRadio::receive(void)
brunnobbco	0:561d07a737bc	907	{
brunnobbco	0:561d07a737bc	908	push_trace(SX1272_receive);
brunnobbco	0:561d07a737bc	909
brunnobbco	0:561d07a737bc	910	switch (_rf_settings.modem) {
brunnobbco	0:561d07a737bc	911	case MODEM_FSK:
brunnobbco	0:561d07a737bc	912	// DIO0=PayloadReady
brunnobbco	0:561d07a737bc	913	// DIO1=FifoLevel
brunnobbco	0:561d07a737bc	914	// DIO2=RxTimeout
brunnobbco	0:561d07a737bc	915	// DIO3=FifoEmpty
brunnobbco	0:561d07a737bc	916	// DIO4=Preamble
brunnobbco	0:561d07a737bc	917	// DIO5=ModeReady
brunnobbco	0:561d07a737bc	918	write_to_register(REG_DIOMAPPING1, (read_register(REG_DIOMAPPING1) &
brunnobbco	0:561d07a737bc	919	RF_DIOMAPPING1_DIO0_MASK &
brunnobbco	0:561d07a737bc	920	RF_DIOMAPPING1_DIO1_MASK &
brunnobbco	0:561d07a737bc	921	RF_DIOMAPPING1_DIO2_MASK) \|
brunnobbco	0:561d07a737bc	922	RF_DIOMAPPING1_DIO0_00 \|
brunnobbco	0:561d07a737bc	923	RF_DIOMAPPING1_DIO1_00 \|
brunnobbco	0:561d07a737bc	924	RF_DIOMAPPING1_DIO2_10);
brunnobbco	0:561d07a737bc	925
brunnobbco	0:561d07a737bc	926	write_to_register(REG_DIOMAPPING2, (read_register(REG_DIOMAPPING2) &
brunnobbco	0:561d07a737bc	927	RF_DIOMAPPING2_DIO4_MASK &
brunnobbco	0:561d07a737bc	928	RF_DIOMAPPING2_MAP_MASK) \|
brunnobbco	0:561d07a737bc	929	RF_DIOMAPPING2_DIO4_11 \|
brunnobbco	0:561d07a737bc	930	RF_DIOMAPPING2_MAP_PREAMBLEDETECT);
brunnobbco	0:561d07a737bc	931
brunnobbco	0:561d07a737bc	932	_rf_settings.fsk_packet_handler.fifo_thresh =
brunnobbco	0:561d07a737bc	933	read_register(REG_FIFOTHRESH) & 0x3F;
brunnobbco	0:561d07a737bc	934
brunnobbco	0:561d07a737bc	935	write_to_register(REG_RXCONFIG, RF_RXCONFIG_AFCAUTO_ON \|
brunnobbco	0:561d07a737bc	936	RF_RXCONFIG_AGCAUTO_ON \|
brunnobbco	0:561d07a737bc	937	RF_RXCONFIG_RXTRIGER_PREAMBLEDETECT);
brunnobbco	0:561d07a737bc	938
brunnobbco	0:561d07a737bc	939	if (!_rf_settings.fsk.rx_continuous) {
brunnobbco	0:561d07a737bc	940	// the value for rx timeout in symbols cannot be more than 255
brunnobbco	0:561d07a737bc	941	// as the preamble length is fixed. We assert here for quick
brunnobbco	0:561d07a737bc	942	// diagnostics
brunnobbco	0:561d07a737bc	943	MBED_ASSERT(_rf_settings.fsk.rx_single_timeout <= 255);
brunnobbco	0:561d07a737bc	944	write_to_register(REG_RXTIMEOUT2, _rf_settings.fsk.rx_single_timeout);
brunnobbco	0:561d07a737bc	945	write_to_register(REG_RXTIMEOUT3, 0x00);
brunnobbco	0:561d07a737bc	946	write_to_register(REG_RXTIMEOUT1, 0x00);
brunnobbco	0:561d07a737bc	947	}
brunnobbco	0:561d07a737bc	948
brunnobbco	0:561d07a737bc	949	_rf_settings.fsk_packet_handler.preamble_detected = 0;
brunnobbco	0:561d07a737bc	950	_rf_settings.fsk_packet_handler.sync_word_detected = 0;
brunnobbco	0:561d07a737bc	951	_rf_settings.fsk_packet_handler.nb_bytes = 0;
brunnobbco	0:561d07a737bc	952	_rf_settings.fsk_packet_handler.size = 0;
brunnobbco	0:561d07a737bc	953
brunnobbco	0:561d07a737bc	954	printf("receive fsk!\n");
brunnobbco	0:561d07a737bc	955
brunnobbco	0:561d07a737bc	956	break;
brunnobbco	0:561d07a737bc	957
brunnobbco	0:561d07a737bc	958	case MODEM_LORA:
brunnobbco	0:561d07a737bc	959
brunnobbco	0:561d07a737bc	960	if (_rf_settings.lora.iq_inverted == true) {
brunnobbco	0:561d07a737bc	961	write_to_register(REG_LR_INVERTIQ, ((read_register(REG_LR_INVERTIQ) &
brunnobbco	0:561d07a737bc	962	RFLR_INVERTIQ_TX_MASK &
brunnobbco	0:561d07a737bc	963	RFLR_INVERTIQ_RX_MASK) \|
brunnobbco	0:561d07a737bc	964	RFLR_INVERTIQ_RX_ON \|
brunnobbco	0:561d07a737bc	965	RFLR_INVERTIQ_TX_OFF));
brunnobbco	0:561d07a737bc	966	write_to_register(REG_LR_INVERTIQ2, RFLR_INVERTIQ2_ON);
brunnobbco	0:561d07a737bc	967	} else {
brunnobbco	0:561d07a737bc	968	write_to_register(REG_LR_INVERTIQ, ((read_register(REG_LR_INVERTIQ) &
brunnobbco	0:561d07a737bc	969	RFLR_INVERTIQ_TX_MASK &
brunnobbco	0:561d07a737bc	970	RFLR_INVERTIQ_RX_MASK) \|
brunnobbco	0:561d07a737bc	971	RFLR_INVERTIQ_RX_OFF \|
brunnobbco	0:561d07a737bc	972	RFLR_INVERTIQ_TX_OFF));
brunnobbco	0:561d07a737bc	973	write_to_register( REG_LR_INVERTIQ2, RFLR_INVERTIQ2_OFF);
brunnobbco	0:561d07a737bc	974	}
brunnobbco	0:561d07a737bc	975
brunnobbco	0:561d07a737bc	976	if (_rf_settings.lora.freq_hop_on == true) {
brunnobbco	0:561d07a737bc	977	write_to_register(REG_LR_IRQFLAGSMASK,
brunnobbco	0:561d07a737bc	978	RFLR_IRQFLAGS_VALIDHEADER \|
brunnobbco	0:561d07a737bc	979	RFLR_IRQFLAGS_TXDONE \|
brunnobbco	0:561d07a737bc	980	RFLR_IRQFLAGS_CADDONE \|
brunnobbco	0:561d07a737bc	981	RFLR_IRQFLAGS_CADDETECTED);
brunnobbco	0:561d07a737bc	982
brunnobbco	0:561d07a737bc	983	// DIO0=rx_done, DIO2=fhss_change_channel
brunnobbco	0:561d07a737bc	984	write_to_register(REG_DIOMAPPING1, (read_register(REG_DIOMAPPING1) &
brunnobbco	0:561d07a737bc	985	RFLR_DIOMAPPING1_DIO0_MASK &
brunnobbco	0:561d07a737bc	986	RFLR_DIOMAPPING1_DIO2_MASK) \|
brunnobbco	0:561d07a737bc	987	RFLR_DIOMAPPING1_DIO0_00 \|
brunnobbco	0:561d07a737bc	988	RFLR_DIOMAPPING1_DIO2_00);
brunnobbco	0:561d07a737bc	989	} else {
brunnobbco	0:561d07a737bc	990	write_to_register(REG_LR_IRQFLAGSMASK,
brunnobbco	0:561d07a737bc	991	RFLR_IRQFLAGS_VALIDHEADER \|
brunnobbco	0:561d07a737bc	992	RFLR_IRQFLAGS_TXDONE \|
brunnobbco	0:561d07a737bc	993	RFLR_IRQFLAGS_CADDONE \|
brunnobbco	0:561d07a737bc	994	RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL \|
brunnobbco	0:561d07a737bc	995	RFLR_IRQFLAGS_CADDETECTED);
brunnobbco	0:561d07a737bc	996
brunnobbco	0:561d07a737bc	997	// DIO0=rx_done
brunnobbco	0:561d07a737bc	998	write_to_register(REG_DIOMAPPING1, (read_register(REG_DIOMAPPING1) &
brunnobbco	0:561d07a737bc	999	RFLR_DIOMAPPING1_DIO0_MASK) \|
brunnobbco	0:561d07a737bc	1000	RFLR_DIOMAPPING1_DIO0_00);
brunnobbco	0:561d07a737bc	1001	}
brunnobbco	0:561d07a737bc	1002
brunnobbco	0:561d07a737bc	1003	write_to_register(REG_LR_FIFORXBASEADDR, 0);
brunnobbco	0:561d07a737bc	1004	write_to_register(REG_LR_FIFOADDRPTR, 0);
brunnobbco	0:561d07a737bc	1005
brunnobbco	0:561d07a737bc	1006	break;
brunnobbco	0:561d07a737bc	1007	}
brunnobbco	0:561d07a737bc	1008
brunnobbco	0:561d07a737bc	1009	memset(_data_buffer, 0, (size_t) MAX_DATA_BUFFER_SIZE_SX172);
brunnobbco	0:561d07a737bc	1010
brunnobbco	0:561d07a737bc	1011	_rf_settings.state = RF_RX_RUNNING;
brunnobbco	0:561d07a737bc	1012
brunnobbco	0:561d07a737bc	1013	if (_rf_settings.modem == MODEM_FSK) {
brunnobbco	0:561d07a737bc	1014	set_operation_mode(RF_OPMODE_RECEIVER);
brunnobbco	0:561d07a737bc	1015	return;
brunnobbco	0:561d07a737bc	1016	}
brunnobbco	0:561d07a737bc	1017
brunnobbco	0:561d07a737bc	1018	// If mode is LoRa set mode
brunnobbco	0:561d07a737bc	1019	if (_rf_settings.lora.rx_continuous == true) {
brunnobbco	0:561d07a737bc	1020	set_operation_mode(RFLR_OPMODE_RECEIVER);
brunnobbco	0:561d07a737bc	1021	}
brunnobbco	0:561d07a737bc	1022	else
brunnobbco	0:561d07a737bc	1023	{
brunnobbco	1:3bdd6f917bf5	1024	set_operation_mode(RFLR_OPMODE_RECEIVER_SINGLE);
brunnobbco	0:561d07a737bc	1025	rx_sync_timer.attach_us(callback(this, &SX1272_LoRaRadio::rxsync_irq_isr), 1000);
brunnobbco	1:3bdd6f917bf5	1026	}
brunnobbco	1:3bdd6f917bf5	1027
brunnobbco	1:3bdd6f917bf5	1028	if (_rf_settings.lora.freq_hop_on == true)
brunnobbco	1:3bdd6f917bf5	1029	{
brunnobbco	1:3bdd6f917bf5	1030	lora_hop_timer.attach_us(callback(this, &SX1272_LoRaRadio::lrhop_irq_isr), 1000);
brunnobbco	0:561d07a737bc	1031	}
brunnobbco	0:561d07a737bc	1032	}
brunnobbco	0:561d07a737bc	1033
brunnobbco	0:561d07a737bc	1034	/**
brunnobbco	0:561d07a737bc	1035	* Puts a limit on the size of payload the module can handle
brunnobbco	0:561d07a737bc	1036	* By default it is MAX, i.e., 256 bytes
brunnobbco	0:561d07a737bc	1037	*/
brunnobbco	0:561d07a737bc	1038	void SX1272_LoRaRadio::set_max_payload_length(radio_modems_t modem, uint8_t max)
brunnobbco	0:561d07a737bc	1039	{
brunnobbco	0:561d07a737bc	1040	push_trace(SX1272_set_max_payload_length);
brunnobbco	0:561d07a737bc	1041
brunnobbco	0:561d07a737bc	1042	set_modem(modem);
brunnobbco	0:561d07a737bc	1043
brunnobbco	0:561d07a737bc	1044	switch (modem) {
brunnobbco	0:561d07a737bc	1045	case MODEM_FSK:
brunnobbco	0:561d07a737bc	1046	if (_rf_settings.fsk.fix_len == false) {
brunnobbco	0:561d07a737bc	1047	write_to_register(REG_PAYLOADLENGTH, max);
brunnobbco	0:561d07a737bc	1048	}
brunnobbco	0:561d07a737bc	1049	break;
brunnobbco	0:561d07a737bc	1050	case MODEM_LORA:
brunnobbco	0:561d07a737bc	1051	write_to_register(REG_LR_PAYLOADMAXLENGTH, max);
brunnobbco	0:561d07a737bc	1052	break;
brunnobbco	0:561d07a737bc	1053	}
brunnobbco	0:561d07a737bc	1054	}
brunnobbco	0:561d07a737bc	1055
brunnobbco	0:561d07a737bc	1056	/**
brunnobbco	0:561d07a737bc	1057	* TODO: Making sure if this API is valid only for LoRa modulation ?
brunnobbco	0:561d07a737bc	1058	*
brunnobbco	0:561d07a737bc	1059	* Indicates if the node is part of a private or public network
brunnobbco	0:561d07a737bc	1060	*/
brunnobbco	0:561d07a737bc	1061	void SX1272_LoRaRadio::set_public_network(bool enable)
brunnobbco	0:561d07a737bc	1062	{
brunnobbco	0:561d07a737bc	1063	push_trace(SX1272_set_public_network);
brunnobbco	0:561d07a737bc	1064
brunnobbco	0:561d07a737bc	1065	set_modem(MODEM_LORA);
brunnobbco	0:561d07a737bc	1066
brunnobbco	0:561d07a737bc	1067	_rf_settings.lora.public_network = enable;
brunnobbco	0:561d07a737bc	1068	if (enable == true) {
brunnobbco	0:561d07a737bc	1069	// Change lora modem SyncWord
brunnobbco	0:561d07a737bc	1070	write_to_register(REG_LR_SYNCWORD, LORA_MAC_PUBLIC_SYNCWORD);
brunnobbco	0:561d07a737bc	1071	} else {
brunnobbco	0:561d07a737bc	1072	// Change lora modem SyncWord
brunnobbco	0:561d07a737bc	1073	write_to_register(REG_LR_SYNCWORD, LORA_MAC_PRIVATE_SYNCWORD);
brunnobbco	0:561d07a737bc	1074	}
brunnobbco	0:561d07a737bc	1075
brunnobbco	0:561d07a737bc	1076	}
brunnobbco	0:561d07a737bc	1077
brunnobbco	0:561d07a737bc	1078	/**
brunnobbco	0:561d07a737bc	1079	* Perform carrier sensing
brunnobbco	0:561d07a737bc	1080	*
brunnobbco	0:561d07a737bc	1081	* Checks for a certain time if the RSSI is above a given threshold.
brunnobbco	0:561d07a737bc	1082	* This threshold determines if there is already a transmission going on
brunnobbco	0:561d07a737bc	1083	* in the channel or not.
brunnobbco	0:561d07a737bc	1084	*
brunnobbco	0:561d07a737bc	1085	*/
brunnobbco	0:561d07a737bc	1086	bool SX1272_LoRaRadio::perform_carrier_sense(radio_modems_t modem,
brunnobbco	0:561d07a737bc	1087	uint32_t freq,
brunnobbco	0:561d07a737bc	1088	int16_t rssi_threshold,
brunnobbco	0:561d07a737bc	1089	uint32_t max_carrier_sense_time)
brunnobbco	0:561d07a737bc	1090	{
brunnobbco	0:561d07a737bc	1091	bool status = true;
brunnobbco	0:561d07a737bc	1092	int16_t rssi = 0;
brunnobbco	0:561d07a737bc	1093
brunnobbco	0:561d07a737bc	1094	push_trace(SX1272_perform_carrier_sense);
brunnobbco	0:561d07a737bc	1095
brunnobbco	0:561d07a737bc	1096	set_modem(modem);
brunnobbco	0:561d07a737bc	1097	set_channel(freq);
brunnobbco	0:561d07a737bc	1098	set_operation_mode(RF_OPMODE_RECEIVER);
brunnobbco	0:561d07a737bc	1099
brunnobbco	0:561d07a737bc	1100	// hold on a bit, radio turn-around time
brunnobbco	0:561d07a737bc	1101	wait_ms(1);
brunnobbco	0:561d07a737bc	1102
brunnobbco	0:561d07a737bc	1103	Timer elapsed_time;
brunnobbco	0:561d07a737bc	1104	elapsed_time.start();
brunnobbco	0:561d07a737bc	1105
brunnobbco	0:561d07a737bc	1106	// Perform carrier sense for maxCarrierSenseTime
brunnobbco	0:561d07a737bc	1107	while (elapsed_time.read_ms() < (int)max_carrier_sense_time) {
brunnobbco	0:561d07a737bc	1108	rssi = get_rssi(modem);
brunnobbco	0:561d07a737bc	1109
brunnobbco	0:561d07a737bc	1110	if (rssi > rssi_threshold) {
brunnobbco	0:561d07a737bc	1111	status = false;
brunnobbco	0:561d07a737bc	1112	break;
brunnobbco	0:561d07a737bc	1113	}
brunnobbco	0:561d07a737bc	1114	}
brunnobbco	0:561d07a737bc	1115
brunnobbco	0:561d07a737bc	1116	sleep();
brunnobbco	0:561d07a737bc	1117	return status;
brunnobbco	0:561d07a737bc	1118	}
brunnobbco	0:561d07a737bc	1119
brunnobbco	0:561d07a737bc	1120	/**
brunnobbco	0:561d07a737bc	1121	* Channel Activity detection (can be done only in LoRa mode)
brunnobbco	0:561d07a737bc	1122	*
brunnobbco	0:561d07a737bc	1123	* If any activity on the channel is detected, an interrupt is asserted on
brunnobbco	0:561d07a737bc	1124	* DIO3. A callback will be generated to the stack/application upon the
brunnobbco	0:561d07a737bc	1125	* assertion of DIO3.
brunnobbco	0:561d07a737bc	1126	*/
brunnobbco	0:561d07a737bc	1127	void SX1272_LoRaRadio::start_cad()
brunnobbco	0:561d07a737bc	1128	{
brunnobbco	0:561d07a737bc	1129	uint8_t reg_val;
brunnobbco	0:561d07a737bc	1130
brunnobbco	0:561d07a737bc	1131	push_trace(SX1272_start_cad);
brunnobbco	0:561d07a737bc	1132
brunnobbco	0:561d07a737bc	1133	switch (_rf_settings.modem) {
brunnobbco	0:561d07a737bc	1134	case MODEM_FSK:
brunnobbco	0:561d07a737bc	1135	break;
brunnobbco	0:561d07a737bc	1136	case MODEM_LORA:
brunnobbco	0:561d07a737bc	1137	write_to_register(REG_LR_IRQFLAGSMASK,
brunnobbco	0:561d07a737bc	1138	RFLR_IRQFLAGS_RXTIMEOUT \|
brunnobbco	0:561d07a737bc	1139	RFLR_IRQFLAGS_RXDONE \|
brunnobbco	0:561d07a737bc	1140	RFLR_IRQFLAGS_PAYLOADCRCERROR \|
brunnobbco	0:561d07a737bc	1141	RFLR_IRQFLAGS_VALIDHEADER \|
brunnobbco	0:561d07a737bc	1142	RFLR_IRQFLAGS_TXDONE \|
brunnobbco	0:561d07a737bc	1143	RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL);
brunnobbco	0:561d07a737bc	1144
brunnobbco	0:561d07a737bc	1145	// DIO3=CADDone
brunnobbco	0:561d07a737bc	1146	reg_val = read_register(REG_DIOMAPPING1);
brunnobbco	0:561d07a737bc	1147	write_to_register(REG_DIOMAPPING1, (reg_val &
brunnobbco	0:561d07a737bc	1148	RFLR_DIOMAPPING1_DIO3_MASK) \|
brunnobbco	0:561d07a737bc	1149	RFLR_DIOMAPPING1_DIO3_00);
brunnobbco	0:561d07a737bc	1150
brunnobbco	0:561d07a737bc	1151	set_operation_mode(RFLR_OPMODE_CAD);
brunnobbco	0:561d07a737bc	1152	_rf_settings.state = RF_CAD;
brunnobbco	1:3bdd6f917bf5	1153	lora_cad_timer.attach_us(callback(this, &SX1272_LoRaRadio::lrcad_irq_isr), 1000);
brunnobbco	0:561d07a737bc	1154	break;
brunnobbco	0:561d07a737bc	1155	default:
brunnobbco	0:561d07a737bc	1156	break;
brunnobbco	0:561d07a737bc	1157	}
brunnobbco	0:561d07a737bc	1158	}
brunnobbco	0:561d07a737bc	1159
brunnobbco	0:561d07a737bc	1160	/**
brunnobbco	0:561d07a737bc	1161	* Set transmission in continuous wave mode
brunnobbco	0:561d07a737bc	1162	*/
brunnobbco	0:561d07a737bc	1163	void SX1272_LoRaRadio::set_tx_continuous_wave(uint32_t freq, int8_t power,
brunnobbco	0:561d07a737bc	1164	uint16_t time)
brunnobbco	0:561d07a737bc	1165	{
brunnobbco	0:561d07a737bc	1166	uint8_t reg_val;
brunnobbco	0:561d07a737bc	1167
brunnobbco	0:561d07a737bc	1168	push_trace(SX1272_set_tx_continuous_wave);
brunnobbco	0:561d07a737bc	1169
brunnobbco	0:561d07a737bc	1170	set_channel(freq);
brunnobbco	0:561d07a737bc	1171	set_tx_config(MODEM_FSK, power, 0, 0, 4800, 0, 5, false, false, 0, 0, 0, time * 1000);
brunnobbco	0:561d07a737bc	1172	reg_val = read_register(REG_PACKETCONFIG2);
brunnobbco	0:561d07a737bc	1173
brunnobbco	0:561d07a737bc	1174	write_to_register( REG_PACKETCONFIG2, (reg_val & RF_PACKETCONFIG2_DATAMODE_MASK ) );
brunnobbco	0:561d07a737bc	1175	// Disable radio interrupts
brunnobbco	0:561d07a737bc	1176	write_to_register( REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_11 \| RF_DIOMAPPING1_DIO1_11 );
brunnobbco	0:561d07a737bc	1177	write_to_register( REG_DIOMAPPING2, RF_DIOMAPPING2_DIO4_10 \| RF_DIOMAPPING2_DIO5_10 );
brunnobbco	0:561d07a737bc	1178
brunnobbco	0:561d07a737bc	1179	_rf_settings.state = RF_TX_RUNNING;
brunnobbco	0:561d07a737bc	1180	tx_timeout_timer.attach_us(callback(this, &SX1272_LoRaRadio::timeout_irq_isr), time * 1000000);
brunnobbco	0:561d07a737bc	1181	set_operation_mode(RF_OPMODE_TRANSMITTER);
brunnobbco	0:561d07a737bc	1182	}
brunnobbco	0:561d07a737bc	1183
brunnobbco	0:561d07a737bc	1184	/**
brunnobbco	0:561d07a737bc	1185	* Put radio in Standby mode
brunnobbco	0:561d07a737bc	1186	*/
brunnobbco	0:561d07a737bc	1187	void SX1272_LoRaRadio::standby( void )
brunnobbco	0:561d07a737bc	1188	{
brunnobbco	0:561d07a737bc	1189	push_trace(SX1272_standby);
brunnobbco	0:561d07a737bc	1190	tx_timeout_timer.detach();
brunnobbco	0:561d07a737bc	1191	rx_sync_timer.detach();
brunnobbco	1:3bdd6f917bf5	1192	lora_cad_timer.detach();
brunnobbco	1:3bdd6f917bf5	1193	lora_hop_timer.detach();
brunnobbco	0:561d07a737bc	1194	set_operation_mode(RF_OPMODE_STANDBY);
brunnobbco	0:561d07a737bc	1195	_rf_settings.state = RF_IDLE;
brunnobbco	0:561d07a737bc	1196	}
brunnobbco	0:561d07a737bc	1197
brunnobbco	0:561d07a737bc	1198	/**
brunnobbco	0:561d07a737bc	1199	* Generates 32 bit random number based upon RSSI monitoring
brunnobbco	0:561d07a737bc	1200	* Used for various calculation by the stack for example dev nonce
brunnobbco	0:561d07a737bc	1201	*
brunnobbco	0:561d07a737bc	1202	* When this API is used modem is set in LoRa mode and all interrupts are
brunnobbco	0:561d07a737bc	1203	* masked. If the user had been using FSK mode, it should be noted that a
brunnobbco	0:561d07a737bc	1204	* change of mode is required again because the registers have changed.
brunnobbco	0:561d07a737bc	1205	* In addition to that RX and TX configuration APIs should be called again in
brunnobbco	0:561d07a737bc	1206	* order to have correct desires setup.
brunnobbco	0:561d07a737bc	1207	*/
brunnobbco	0:561d07a737bc	1208	uint32_t SX1272_LoRaRadio::random()
brunnobbco	0:561d07a737bc	1209	{
brunnobbco	0:561d07a737bc	1210	uint8_t i;
brunnobbco	0:561d07a737bc	1211	uint32_t rnd = 0;
brunnobbco	0:561d07a737bc	1212
brunnobbco	0:561d07a737bc	1213	push_trace(SX1272_random);
brunnobbco	0:561d07a737bc	1214
brunnobbco	0:561d07a737bc	1215	// Set LoRa modem ON
brunnobbco	0:561d07a737bc	1216	set_modem(MODEM_LORA);
brunnobbco	0:561d07a737bc	1217
brunnobbco	0:561d07a737bc	1218	// Disable LoRa modem interrupts, i.e., mask all interrupts
brunnobbco	0:561d07a737bc	1219	write_to_register(REG_LR_IRQFLAGSMASK, RFLR_IRQFLAGS_RXTIMEOUT \| RFLR_IRQFLAGS_RXDONE
brunnobbco	0:561d07a737bc	1220	\| RFLR_IRQFLAGS_PAYLOADCRCERROR \| RFLR_IRQFLAGS_VALIDHEADER
brunnobbco	0:561d07a737bc	1221	\| RFLR_IRQFLAGS_TXDONE \| RFLR_IRQFLAGS_CADDONE
brunnobbco	0:561d07a737bc	1222	\| RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL \| RFLR_IRQFLAGS_CADDETECTED);
brunnobbco	0:561d07a737bc	1223
brunnobbco	0:561d07a737bc	1224	// Set radio in continuous reception
brunnobbco	0:561d07a737bc	1225	set_operation_mode(RF_OPMODE_RECEIVER);
brunnobbco	0:561d07a737bc	1226
brunnobbco	0:561d07a737bc	1227	for (i = 0; i < 32; i++) {
brunnobbco	0:561d07a737bc	1228	wait_ms(1);
brunnobbco	0:561d07a737bc	1229	// Unfiltered RSSI value reading. Only takes the LSB value
brunnobbco	0:561d07a737bc	1230	rnd \|= ((uint32_t) read_register(REG_LR_RSSIWIDEBAND) & 0x01) << i;
brunnobbco	0:561d07a737bc	1231	}
brunnobbco	0:561d07a737bc	1232
brunnobbco	0:561d07a737bc	1233	sleep();
brunnobbco	0:561d07a737bc	1234
brunnobbco	0:561d07a737bc	1235	return rnd;
brunnobbco	0:561d07a737bc	1236	}
brunnobbco	0:561d07a737bc	1237
brunnobbco	0:561d07a737bc	1238
brunnobbco	0:561d07a737bc	1239	/*****************************************************************************
brunnobbco	0:561d07a737bc	1240	* Private APIs *
brunnobbco	0:561d07a737bc	1241	****************************************************************************/
brunnobbco	0:561d07a737bc	1242	#ifdef MBED_CONF_RTOS_PRESENT
brunnobbco	0:561d07a737bc	1243	/**
brunnobbco	0:561d07a737bc	1244	* Thread task handling IRQs
brunnobbco	0:561d07a737bc	1245	*/
brunnobbco	0:561d07a737bc	1246	void SX1272_LoRaRadio::rf_irq_task(void)
brunnobbco	0:561d07a737bc	1247	{
brunnobbco	0:561d07a737bc	1248	for (;;) {
brunnobbco	0:561d07a737bc	1249	uint32_t flags = ThisThread::flags_wait_any(0x7FFFFFFF);
brunnobbco	0:561d07a737bc	1250
brunnobbco	0:561d07a737bc	1251	lock();
brunnobbco	0:561d07a737bc	1252	if (flags & SIG_DIO0) {
brunnobbco	0:561d07a737bc	1253	handle_dio0_irq();
brunnobbco	0:561d07a737bc	1254	}
brunnobbco	0:561d07a737bc	1255	if (flags & SIG_DIO1) {
brunnobbco	0:561d07a737bc	1256	handle_dio1_irq();
brunnobbco	0:561d07a737bc	1257	}
brunnobbco	0:561d07a737bc	1258	if (flags & SIG_DIO2) {
brunnobbco	0:561d07a737bc	1259	handle_dio2_irq();
brunnobbco	0:561d07a737bc	1260	}
brunnobbco	1:3bdd6f917bf5	1261	if (flags & SIG_LRHOP) {
brunnobbco	1:3bdd6f917bf5	1262	handle_lrhop_irq();
brunnobbco	0:561d07a737bc	1263	}
brunnobbco	1:3bdd6f917bf5	1264	if (flags & SIG_LRCAD) {
brunnobbco	1:3bdd6f917bf5	1265	handle_lrcad_irq();
brunnobbco	0:561d07a737bc	1266	}
brunnobbco	0:561d07a737bc	1267	if (flags & SIG_TIMOUT) {
brunnobbco	0:561d07a737bc	1268	handle_timeout_irq();
brunnobbco	0:561d07a737bc	1269	}
brunnobbco	0:561d07a737bc	1270	if (flags & SIG_RXSYNC) {
brunnobbco	0:561d07a737bc	1271	handle_rxsync_irq();
brunnobbco	0:561d07a737bc	1272	}
brunnobbco	0:561d07a737bc	1273	unlock();
brunnobbco	0:561d07a737bc	1274	}
brunnobbco	0:561d07a737bc	1275	}
brunnobbco	0:561d07a737bc	1276	#endif
brunnobbco	0:561d07a737bc	1277
brunnobbco	0:561d07a737bc	1278	/**
brunnobbco	0:561d07a737bc	1279	* Writes a single byte to a given register
brunnobbco	0:561d07a737bc	1280	*/
brunnobbco	0:561d07a737bc	1281	void SX1272_LoRaRadio::write_to_register(uint8_t addr, uint8_t data)
brunnobbco	0:561d07a737bc	1282	{
brunnobbco	0:561d07a737bc	1283	write_to_register(addr, &data, 1);
brunnobbco	0:561d07a737bc	1284	}
brunnobbco	0:561d07a737bc	1285
brunnobbco	0:561d07a737bc	1286	/**
brunnobbco	0:561d07a737bc	1287	* Writes multiple bytes to a given register
brunnobbco	0:561d07a737bc	1288	*/
brunnobbco	0:561d07a737bc	1289	void SX1272_LoRaRadio::write_to_register(uint8_t addr, uint8_t *data, uint8_t size)
brunnobbco	0:561d07a737bc	1290	{
brunnobbco	0:561d07a737bc	1291	// set chip-select low
brunnobbco	0:561d07a737bc	1292	_chip_select = 0;
brunnobbco	0:561d07a737bc	1293
brunnobbco	0:561d07a737bc	1294	// set write command
brunnobbco	0:561d07a737bc	1295	_spi.write(addr \| SPI_WRITE_CMD);
brunnobbco	0:561d07a737bc	1296
brunnobbco	0:561d07a737bc	1297	// write data
brunnobbco	0:561d07a737bc	1298	for (uint8_t i = 0; i < size; i++) {
brunnobbco	0:561d07a737bc	1299	_spi.write(data[i]);
brunnobbco	0:561d07a737bc	1300	}
brunnobbco	0:561d07a737bc	1301
brunnobbco	0:561d07a737bc	1302	// set chip-select high
brunnobbco	0:561d07a737bc	1303	_chip_select = 1;
brunnobbco	0:561d07a737bc	1304	}
brunnobbco	0:561d07a737bc	1305
brunnobbco	0:561d07a737bc	1306	/**
brunnobbco	0:561d07a737bc	1307	* Reads the value of a single register
brunnobbco	0:561d07a737bc	1308	*/
brunnobbco	0:561d07a737bc	1309	uint8_t SX1272_LoRaRadio::read_register(uint8_t addr)
brunnobbco	0:561d07a737bc	1310	{
brunnobbco	0:561d07a737bc	1311	uint8_t data;
brunnobbco	0:561d07a737bc	1312	read_register(addr, &data, 1);
brunnobbco	0:561d07a737bc	1313	return data;
brunnobbco	0:561d07a737bc	1314	}
brunnobbco	0:561d07a737bc	1315
brunnobbco	0:561d07a737bc	1316	/**
brunnobbco	0:561d07a737bc	1317	* Reads multiple values from a given register
brunnobbco	0:561d07a737bc	1318	*/
brunnobbco	0:561d07a737bc	1319	void SX1272_LoRaRadio::read_register(uint8_t addr, uint8_t *buffer, uint8_t size)
brunnobbco	0:561d07a737bc	1320	{
brunnobbco	0:561d07a737bc	1321	// set chip-select low
brunnobbco	0:561d07a737bc	1322	_chip_select = 0;
brunnobbco	0:561d07a737bc	1323
brunnobbco	0:561d07a737bc	1324	// set read command
brunnobbco	0:561d07a737bc	1325	_spi.write(addr & SPI_READ_CMD);
brunnobbco	0:561d07a737bc	1326
brunnobbco	0:561d07a737bc	1327	// read buffers
brunnobbco	0:561d07a737bc	1328	for (uint8_t i = 0; i < size; i++) {
brunnobbco	0:561d07a737bc	1329	buffer[i] = _spi.write(0);
brunnobbco	0:561d07a737bc	1330	}
brunnobbco	0:561d07a737bc	1331
brunnobbco	0:561d07a737bc	1332	// set chip-select high
brunnobbco	0:561d07a737bc	1333	_chip_select = 1;
brunnobbco	0:561d07a737bc	1334	}
brunnobbco	0:561d07a737bc	1335
brunnobbco	0:561d07a737bc	1336	/**
brunnobbco	0:561d07a737bc	1337	* Writes to FIIO provided by the chip
brunnobbco	0:561d07a737bc	1338	*/
brunnobbco	0:561d07a737bc	1339	void SX1272_LoRaRadio::write_fifo(uint8_t *buffer, uint8_t size)
brunnobbco	0:561d07a737bc	1340	{
brunnobbco	0:561d07a737bc	1341	write_to_register(0, buffer, size);
brunnobbco	0:561d07a737bc	1342	}
brunnobbco	0:561d07a737bc	1343
brunnobbco	0:561d07a737bc	1344	/**
brunnobbco	0:561d07a737bc	1345	* Reads from the FIFO provided by the chip
brunnobbco	0:561d07a737bc	1346	*/
brunnobbco	0:561d07a737bc	1347	void SX1272_LoRaRadio::read_fifo(uint8_t *buffer, uint8_t size)
brunnobbco	0:561d07a737bc	1348	{
brunnobbco	0:561d07a737bc	1349	read_register(0, buffer, size);
brunnobbco	0:561d07a737bc	1350	}
brunnobbco	0:561d07a737bc	1351
brunnobbco	0:561d07a737bc	1352	/**
brunnobbco	0:561d07a737bc	1353	* Gets FSK bandwidth values
brunnobbco	0:561d07a737bc	1354	*
brunnobbco	0:561d07a737bc	1355	* Gives either normal bandwidths or bandwidths for
brunnobbco	0:561d07a737bc	1356	* AFC (auto frequency correction)
brunnobbco	0:561d07a737bc	1357	*/
brunnobbco	0:561d07a737bc	1358	uint8_t SX1272_LoRaRadio::get_fsk_bw_reg_val(uint32_t bandwidth)
brunnobbco	0:561d07a737bc	1359	{
brunnobbco	0:561d07a737bc	1360	uint8_t i;
brunnobbco	0:561d07a737bc	1361
brunnobbco	0:561d07a737bc	1362	for (i = 0; i < (sizeof(fsk_bandwidths) / sizeof(fsk_bw_t)) - 1; i++) {
brunnobbco	0:561d07a737bc	1363	if ((bandwidth >= fsk_bandwidths[i].bandwidth)
brunnobbco	0:561d07a737bc	1364	&& (bandwidth < fsk_bandwidths[i + 1].bandwidth)) {
brunnobbco	0:561d07a737bc	1365	return fsk_bandwidths[i].register_value;
brunnobbco	0:561d07a737bc	1366	}
brunnobbco	0:561d07a737bc	1367	}
brunnobbco	0:561d07a737bc	1368	// ERROR: Value not found
brunnobbco	0:561d07a737bc	1369	// This should never happen
brunnobbco	0:561d07a737bc	1370	while (1);
brunnobbco	0:561d07a737bc	1371	}
brunnobbco	0:561d07a737bc	1372
brunnobbco	0:561d07a737bc	1373	/**
brunnobbco	0:561d07a737bc	1374	* Sets the radio modules to default position (off)
brunnobbco	0:561d07a737bc	1375	*
brunnobbco	0:561d07a737bc	1376	* Historically they were being called as Antenna switches, so we kept the name.
brunnobbco	0:561d07a737bc	1377	* In essence these are control latches over duplexer which either let
brunnobbco	0:561d07a737bc	1378	* TX submodule or RX submodule circuitry enabled at a time.
brunnobbco	0:561d07a737bc	1379	*/
brunnobbco	0:561d07a737bc	1380	void SX1272_LoRaRadio::default_antenna_switch_ctrls()
brunnobbco	0:561d07a737bc	1381	{
brunnobbco	0:561d07a737bc	1382	if (_rf_ctrls.pwr_amp_ctl != NC) {
brunnobbco	0:561d07a737bc	1383	_pwr_amp_ctl = 0;
brunnobbco	0:561d07a737bc	1384	}
brunnobbco	0:561d07a737bc	1385
brunnobbco	0:561d07a737bc	1386	if (_rf_ctrls.rf_switch_ctl1 != NC && _rf_ctrls.rf_switch_ctl2 != NC) {
brunnobbco	0:561d07a737bc	1387	_rf_switch_ctl1 = 0;
brunnobbco	0:561d07a737bc	1388	_rf_switch_ctl2 = 0;
brunnobbco	0:561d07a737bc	1389	}
brunnobbco	0:561d07a737bc	1390
brunnobbco	0:561d07a737bc	1391	if (_rf_ctrls.txctl != NC && _rf_ctrls.rxctl != NC) {
brunnobbco	0:561d07a737bc	1392	_txctl = 0;
brunnobbco	0:561d07a737bc	1393	_rxctl = 0;
brunnobbco	0:561d07a737bc	1394	}
brunnobbco	0:561d07a737bc	1395	}
brunnobbco	0:561d07a737bc	1396
brunnobbco	0:561d07a737bc	1397	/**
brunnobbco	0:561d07a737bc	1398	* Gets the power amplifier configuration register
brunnobbco	0:561d07a737bc	1399	*/
brunnobbco	0:561d07a737bc	1400	uint8_t SX1272_LoRaRadio::get_pa_conf_reg()
brunnobbco	0:561d07a737bc	1401	{
brunnobbco	0:561d07a737bc	1402	if (radio_variant == SX1272UNDEFINED) {
brunnobbco	0:561d07a737bc	1403	return RF_PACONFIG_PASELECT_PABOOST;
brunnobbco	0:561d07a737bc	1404	} else if (radio_variant == SX1272MB1DCS) {
brunnobbco	0:561d07a737bc	1405	return RF_PACONFIG_PASELECT_PABOOST;
brunnobbco	0:561d07a737bc	1406	} else {
brunnobbco	0:561d07a737bc	1407	return RF_PACONFIG_PASELECT_RFO;
brunnobbco	0:561d07a737bc	1408	}
brunnobbco	0:561d07a737bc	1409	}
brunnobbco	0:561d07a737bc	1410
brunnobbco	0:561d07a737bc	1411	/**
brunnobbco	0:561d07a737bc	1412	* Get RSSI from the module
brunnobbco	0:561d07a737bc	1413	*/
brunnobbco	0:561d07a737bc	1414	int16_t SX1272_LoRaRadio::get_rssi(radio_modems_t modem)
brunnobbco	0:561d07a737bc	1415	{
brunnobbco	0:561d07a737bc	1416	int16_t rssi = 0;
brunnobbco	0:561d07a737bc	1417
brunnobbco	0:561d07a737bc	1418	switch( modem )
brunnobbco	0:561d07a737bc	1419	{
brunnobbco	0:561d07a737bc	1420	case MODEM_FSK:
brunnobbco	0:561d07a737bc	1421	rssi = -(read_register(REG_RSSIVALUE) >> 1 );
brunnobbco	0:561d07a737bc	1422	break;
brunnobbco	0:561d07a737bc	1423	case MODEM_LORA:
brunnobbco	0:561d07a737bc	1424	rssi = RSSI_OFFSET + read_register(REG_LR_RSSIVALUE);
brunnobbco	0:561d07a737bc	1425	break;
brunnobbco	0:561d07a737bc	1426	default:
brunnobbco	0:561d07a737bc	1427	rssi = -1;
brunnobbco	0:561d07a737bc	1428	break;
brunnobbco	0:561d07a737bc	1429	}
brunnobbco	0:561d07a737bc	1430	return rssi;
brunnobbco	0:561d07a737bc	1431	}
brunnobbco	0:561d07a737bc	1432
brunnobbco	0:561d07a737bc	1433	/**
brunnobbco	0:561d07a737bc	1434	* Sets the transmit power for the module
brunnobbco	0:561d07a737bc	1435	*/
brunnobbco	0:561d07a737bc	1436	#if defined ( TARGET_MOTE_L152RC )
brunnobbco	0:561d07a737bc	1437	static const uint8_t pa_boost_table[20] = {0, 0, 0, 0, 0, 1, 2, 3, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15};
brunnobbco	0:561d07a737bc	1438	static const uint8_t RFO_table[11] = {1, 1, 1, 2, 2, 3, 4, 5, 6, 8, 9};
brunnobbco	0:561d07a737bc	1439	#endif
brunnobbco	0:561d07a737bc	1440
brunnobbco	0:561d07a737bc	1441	void SX1272_LoRaRadio::set_rf_tx_power(int8_t power)
brunnobbco	0:561d07a737bc	1442	{
brunnobbco	0:561d07a737bc	1443	uint8_t pa_config = 0;
brunnobbco	0:561d07a737bc	1444	uint8_t pa_dac = 0;
brunnobbco	0:561d07a737bc	1445
brunnobbco	0:561d07a737bc	1446	pa_config = read_register(REG_PACONFIG);
brunnobbco	0:561d07a737bc	1447	pa_dac = read_register(REG_PADAC);
brunnobbco	0:561d07a737bc	1448
brunnobbco	0:561d07a737bc	1449	#if defined ( TARGET_MOTE_L152RC )
brunnobbco	0:561d07a737bc	1450	if(power > 19) {
brunnobbco	0:561d07a737bc	1451	pa_config = (pa_config & RF_PACONFIG_PASELECT_MASK) \| RF_PACONFIG_PASELECT_RFO;
brunnobbco	0:561d07a737bc	1452	pa_config = (pa_config & RFLR_PACONFIG_OUTPUTPOWER_MASK) \| RFO_table[power - 20];
brunnobbco	0:561d07a737bc	1453	}
brunnobbco	0:561d07a737bc	1454	else
brunnobbco	0:561d07a737bc	1455	{
brunnobbco	0:561d07a737bc	1456	pa_config = (pa_config & RF_PACONFIG_PASELECT_MASK) \| RF_PACONFIG_PASELECT_PABOOST;
brunnobbco	0:561d07a737bc	1457	pa_config = (pa_config & RFLR_PACONFIG_OUTPUTPOWER_MASK) \| pa_boost_table[power];
brunnobbco	0:561d07a737bc	1458	}
brunnobbco	0:561d07a737bc	1459	#else
brunnobbco	0:561d07a737bc	1460	pa_config = (pa_config & RF_PACONFIG_PASELECT_MASK) \| get_pa_conf_reg();
brunnobbco	0:561d07a737bc	1461
brunnobbco	0:561d07a737bc	1462	if ((pa_config & RF_PACONFIG_PASELECT_PABOOST)
brunnobbco	0:561d07a737bc	1463	== RF_PACONFIG_PASELECT_PABOOST) {
brunnobbco	0:561d07a737bc	1464	if (power > 17) {
brunnobbco	0:561d07a737bc	1465	pa_dac = (pa_dac & RF_PADAC_20DBM_MASK) \| RF_PADAC_20DBM_ON;
brunnobbco	0:561d07a737bc	1466	} else {
brunnobbco	0:561d07a737bc	1467	pa_dac = (pa_dac & RF_PADAC_20DBM_MASK) \| RF_PADAC_20DBM_OFF;
brunnobbco	0:561d07a737bc	1468	}
brunnobbco	0:561d07a737bc	1469	if ((pa_dac & RF_PADAC_20DBM_ON) == RF_PADAC_20DBM_ON) {
brunnobbco	0:561d07a737bc	1470	if (power < 5) {
brunnobbco	0:561d07a737bc	1471	power = 5;
brunnobbco	0:561d07a737bc	1472	}
brunnobbco	0:561d07a737bc	1473	if (power > 20) {
brunnobbco	0:561d07a737bc	1474	power = 20;
brunnobbco	0:561d07a737bc	1475	}
brunnobbco	0:561d07a737bc	1476	pa_config = (pa_config & RFLR_PACONFIG_OUTPUTPOWER_MASK)
brunnobbco	0:561d07a737bc	1477	\| (uint8_t) ((uint16_t) (power - 5) & 0x0F);
brunnobbco	0:561d07a737bc	1478	} else {
brunnobbco	0:561d07a737bc	1479	if (power < 2) {
brunnobbco	0:561d07a737bc	1480	power = 2;
brunnobbco	0:561d07a737bc	1481	}
brunnobbco	0:561d07a737bc	1482	if (power > 17) {
brunnobbco	0:561d07a737bc	1483	power = 17;
brunnobbco	0:561d07a737bc	1484	}
brunnobbco	0:561d07a737bc	1485	pa_config = (pa_config & RFLR_PACONFIG_OUTPUTPOWER_MASK)
brunnobbco	0:561d07a737bc	1486	\| (uint8_t) ((uint16_t) (power - 2) & 0x0F);
brunnobbco	0:561d07a737bc	1487	}
brunnobbco	0:561d07a737bc	1488	} else {
brunnobbco	0:561d07a737bc	1489	if (power < -1) {
brunnobbco	0:561d07a737bc	1490	power = -1;
brunnobbco	0:561d07a737bc	1491	}
brunnobbco	0:561d07a737bc	1492	if (power > 14) {
brunnobbco	0:561d07a737bc	1493	power = 14;
brunnobbco	0:561d07a737bc	1494	}
brunnobbco	0:561d07a737bc	1495	pa_config = (pa_config & RFLR_PACONFIG_OUTPUTPOWER_MASK)
brunnobbco	0:561d07a737bc	1496	\| (uint8_t) ((uint16_t) (power + 1) & 0x0F);
brunnobbco	0:561d07a737bc	1497	}
brunnobbco	0:561d07a737bc	1498	#endif
brunnobbco	0:561d07a737bc	1499	write_to_register(REG_PACONFIG, pa_config);
brunnobbco	0:561d07a737bc	1500	write_to_register(REG_PADAC, pa_dac);
brunnobbco	0:561d07a737bc	1501	}
brunnobbco	0:561d07a737bc	1502
brunnobbco	0:561d07a737bc	1503	/**
brunnobbco	0:561d07a737bc	1504	* Sets the radio registers to defaults
brunnobbco	0:561d07a737bc	1505	*/
brunnobbco	0:561d07a737bc	1506	void SX1272_LoRaRadio::setup_registers()
brunnobbco	0:561d07a737bc	1507	{
brunnobbco	0:561d07a737bc	1508	for (unsigned int i = 0; i < sizeof(radio_reg_init) / sizeof(radio_registers_t); i++) {
brunnobbco	0:561d07a737bc	1509	set_modem(radio_reg_init[i].modem);
brunnobbco	0:561d07a737bc	1510	write_to_register(radio_reg_init[i].addr, radio_reg_init[i].value);
brunnobbco	0:561d07a737bc	1511	}
brunnobbco	0:561d07a737bc	1512	}
brunnobbco	0:561d07a737bc	1513
brunnobbco	0:561d07a737bc	1514	/**
brunnobbco	0:561d07a737bc	1515	* Set the radio module variant
brunnobbco	0:561d07a737bc	1516	*/
brunnobbco	0:561d07a737bc	1517	void SX1272_LoRaRadio::set_sx1272_variant_type()
brunnobbco	0:561d07a737bc	1518	{
brunnobbco	0:561d07a737bc	1519	if (_rf_ctrls.ant_switch != NC){
brunnobbco	0:561d07a737bc	1520	_ant_switch.input();
brunnobbco	0:561d07a737bc	1521	wait_ms(1);
brunnobbco	0:561d07a737bc	1522	if (_ant_switch == 1) {
brunnobbco	0:561d07a737bc	1523	radio_variant = SX1272MB1DCS;
brunnobbco	0:561d07a737bc	1524	} else {
brunnobbco	0:561d07a737bc	1525	radio_variant = SX1272MB2XAS;
brunnobbco	0:561d07a737bc	1526	}
brunnobbco	0:561d07a737bc	1527	_ant_switch.output();
brunnobbco	0:561d07a737bc	1528	wait_ms(1);
brunnobbco	0:561d07a737bc	1529	} else {
brunnobbco	0:561d07a737bc	1530	radio_variant = MBED_CONF_SX1272_LORA_DRIVER_RADIO_VARIANT;
brunnobbco	0:561d07a737bc	1531	}
brunnobbco	0:561d07a737bc	1532	}
brunnobbco	0:561d07a737bc	1533
brunnobbco	0:561d07a737bc	1534	/**
brunnobbco	0:561d07a737bc	1535	* Sets up radio latch position according to the
brunnobbco	0:561d07a737bc	1536	* radio mode
brunnobbco	0:561d07a737bc	1537	*/
brunnobbco	0:561d07a737bc	1538	void SX1272_LoRaRadio::set_antenna_switch(uint8_t mode)
brunnobbco	0:561d07a737bc	1539	{
brunnobbco	0:561d07a737bc	1540	// here we got to do ifdef for changing controls
brunnobbco	0:561d07a737bc	1541	// as some pins might be NC
brunnobbco	0:561d07a737bc	1542	switch (mode) {
brunnobbco	0:561d07a737bc	1543	case RFLR_OPMODE_TRANSMITTER:
brunnobbco	0:561d07a737bc	1544	if (_rf_ctrls.rf_switch_ctl1 != NC
brunnobbco	0:561d07a737bc	1545	&& _rf_ctrls.rf_switch_ctl2 != NC) {
brunnobbco	0:561d07a737bc	1546	// module is in transmit mode and RF latch switches
brunnobbco	0:561d07a737bc	1547	// are connected. Check if power amplifier boost is
brunnobbco	0:561d07a737bc	1548	// setup or not
brunnobbco	0:561d07a737bc	1549	if ((read_register(REG_PACONFIG) & RF_PACONFIG_PASELECT_PABOOST)
brunnobbco	0:561d07a737bc	1550	== RF_PACONFIG_PASELECT_PABOOST) {
brunnobbco	0:561d07a737bc	1551	_rf_switch_ctl1 = 1;
brunnobbco	0:561d07a737bc	1552	_rf_switch_ctl2 = 0;
brunnobbco	0:561d07a737bc	1553	} else {
brunnobbco	0:561d07a737bc	1554	// power amplifier not selected
brunnobbco	0:561d07a737bc	1555	_rf_switch_ctl1 = 0;
brunnobbco	0:561d07a737bc	1556	_rf_switch_ctl2 = 1;
brunnobbco	0:561d07a737bc	1557	}
brunnobbco	0:561d07a737bc	1558	} else if (_rf_ctrls.txctl != NC && _rf_ctrls.rxctl != NC) {
brunnobbco	0:561d07a737bc	1559	// module is in transmit mode and tx/rx submodule control
brunnobbco	0:561d07a737bc	1560	// pins are connected
brunnobbco	0:561d07a737bc	1561	_txctl = 1;
brunnobbco	0:561d07a737bc	1562	_rxctl = 0;
brunnobbco	0:561d07a737bc	1563	} else if (_rf_ctrls.ant_switch != NC){
brunnobbco	0:561d07a737bc	1564	_ant_switch = 1;
brunnobbco	0:561d07a737bc	1565	} else {
brunnobbco	0:561d07a737bc	1566	// None of the control pins are connected.
brunnobbco	0:561d07a737bc	1567	}
brunnobbco	0:561d07a737bc	1568	break;
brunnobbco	0:561d07a737bc	1569	case RFLR_OPMODE_RECEIVER:
brunnobbco	0:561d07a737bc	1570	case RFLR_OPMODE_RECEIVER_SINGLE:
brunnobbco	0:561d07a737bc	1571	case RFLR_OPMODE_CAD:
brunnobbco	0:561d07a737bc	1572	if (_rf_ctrls.rf_switch_ctl1 != NC
brunnobbco	0:561d07a737bc	1573	&& _rf_ctrls.rf_switch_ctl2 != NC) {
brunnobbco	0:561d07a737bc	1574	// radio is in reception or CAD mode and RF latch switches
brunnobbco	0:561d07a737bc	1575	// are connected
brunnobbco	0:561d07a737bc	1576	_rf_switch_ctl1 = 1;
brunnobbco	0:561d07a737bc	1577	_rf_switch_ctl2 = 1;
brunnobbco	0:561d07a737bc	1578	} else if (_rf_ctrls.txctl != NC && _rf_ctrls.rxctl != NC) {
brunnobbco	0:561d07a737bc	1579	_txctl = 0;
brunnobbco	0:561d07a737bc	1580	_rxctl = 1;
brunnobbco	0:561d07a737bc	1581	} else if (_rf_ctrls.ant_switch != NC) {
brunnobbco	0:561d07a737bc	1582	_ant_switch = 0;
brunnobbco	0:561d07a737bc	1583	} else {
brunnobbco	0:561d07a737bc	1584	// None of the control pins are connected.
brunnobbco	0:561d07a737bc	1585	}
brunnobbco	0:561d07a737bc	1586	break;
brunnobbco	0:561d07a737bc	1587	default:
brunnobbco	0:561d07a737bc	1588	// Enforce default case when any connected control pin is kept low.
brunnobbco	0:561d07a737bc	1589	if (_rf_ctrls.rf_switch_ctl1 != NC
brunnobbco	0:561d07a737bc	1590	&& _rf_ctrls.rf_switch_ctl2 != NC) {
brunnobbco	0:561d07a737bc	1591	// radio is in reception or CAD mode and RF latch switches
brunnobbco	0:561d07a737bc	1592	// are connected
brunnobbco	0:561d07a737bc	1593	_rf_switch_ctl1 = 0;
brunnobbco	0:561d07a737bc	1594	_rf_switch_ctl2 = 0;
brunnobbco	0:561d07a737bc	1595	} else if (_rf_ctrls.txctl != NC && _rf_ctrls.rxctl != NC) {
brunnobbco	0:561d07a737bc	1596	_txctl = 0;
brunnobbco	0:561d07a737bc	1597	_rxctl = 0;
brunnobbco	0:561d07a737bc	1598	} else if (_rf_ctrls.ant_switch != NC) {
brunnobbco	0:561d07a737bc	1599	_ant_switch = 0;
brunnobbco	0:561d07a737bc	1600	} else {
brunnobbco	0:561d07a737bc	1601	// None of the control pins are connected.
brunnobbco	0:561d07a737bc	1602	}
brunnobbco	0:561d07a737bc	1603	break;
brunnobbco	0:561d07a737bc	1604	}
brunnobbco	0:561d07a737bc	1605	}
brunnobbco	0:561d07a737bc	1606
brunnobbco	0:561d07a737bc	1607	/**
brunnobbco	0:561d07a737bc	1608	* Sets up frequency for SPI module
brunnobbco	0:561d07a737bc	1609	* Reference DataSheet: 4.3 SPI Interface
brunnobbco	0:561d07a737bc	1610	*/
brunnobbco	0:561d07a737bc	1611	void SX1272_LoRaRadio::setup_spi()
brunnobbco	0:561d07a737bc	1612	{
brunnobbco	0:561d07a737bc	1613	// SPI bus frequency
brunnobbco	0:561d07a737bc	1614	uint32_t spi_freq = SPI_FREQUENCY;
brunnobbco	0:561d07a737bc	1615
brunnobbco	0:561d07a737bc	1616	// Hold chip-select high
brunnobbco	0:561d07a737bc	1617	_chip_select = 1;
brunnobbco	0:561d07a737bc	1618	_spi.format(8, 0);
brunnobbco	0:561d07a737bc	1619
brunnobbco	0:561d07a737bc	1620	#if defined (TARGET_KL25Z)
brunnobbco	0:561d07a737bc	1621	//bus-clock frequency is halved -> double the SPI frequency to compensate
brunnobbco	0:561d07a737bc	1622	_spi.frequency(spi_freq * 2);
brunnobbco	0:561d07a737bc	1623	#else
brunnobbco	0:561d07a737bc	1624	// otherwise use default SPI frequency which is 8 MHz
brunnobbco	0:561d07a737bc	1625	_spi.frequency(spi_freq);
brunnobbco	0:561d07a737bc	1626	#endif
brunnobbco	0:561d07a737bc	1627	// 100 us wait to settle down
brunnobbco	0:561d07a737bc	1628	wait(0.1);
brunnobbco	0:561d07a737bc	1629	}
brunnobbco	0:561d07a737bc	1630
brunnobbco	0:561d07a737bc	1631	/**
brunnobbco	0:561d07a737bc	1632	* Attaches ISRs to interrupt pins
brunnobbco	0:561d07a737bc	1633	*/
brunnobbco	0:561d07a737bc	1634	void SX1272_LoRaRadio::setup_interrupts()
brunnobbco	0:561d07a737bc	1635	{
brunnobbco	0:561d07a737bc	1636	_dio0_ctl.rise(callback(this, &SX1272_LoRaRadio::dio0_irq_isr));
brunnobbco	0:561d07a737bc	1637
brunnobbco	0:561d07a737bc	1638	if (_dio1_pin != NC) {
brunnobbco	0:561d07a737bc	1639	_dio1_ctl.rise(callback(this, &SX1272_LoRaRadio::dio1_irq_isr));
brunnobbco	0:561d07a737bc	1640	}
brunnobbco	0:561d07a737bc	1641
brunnobbco	1:3bdd6f917bf5	1642	if (_dio2_pin != NC) {
brunnobbco	1:3bdd6f917bf5	1643	_dio2_ctl.rise(callback(this, &SX1272_LoRaRadio::dio2_irq_isr));
brunnobbco	0:561d07a737bc	1644	}
brunnobbco	0:561d07a737bc	1645	}
brunnobbco	0:561d07a737bc	1646
brunnobbco	0:561d07a737bc	1647	/**
brunnobbco	0:561d07a737bc	1648	* Sets the module in low power mode by disconnecting
brunnobbco	0:561d07a737bc	1649	* TX and RX submodules, turning off power amplifier etc.
brunnobbco	0:561d07a737bc	1650	*/
brunnobbco	0:561d07a737bc	1651	void SX1272_LoRaRadio::set_low_power_mode(bool status)
brunnobbco	0:561d07a737bc	1652	{
brunnobbco	0:561d07a737bc	1653	if (radio_is_active != status) {
brunnobbco	0:561d07a737bc	1654	radio_is_active = status;
brunnobbco	0:561d07a737bc	1655
brunnobbco	0:561d07a737bc	1656	if (status == false) {
brunnobbco	0:561d07a737bc	1657	if (_rf_ctrls.rf_switch_ctl1 != NC) {
brunnobbco	0:561d07a737bc	1658	_rf_switch_ctl1 = 0;
brunnobbco	0:561d07a737bc	1659	}
brunnobbco	0:561d07a737bc	1660	if (_rf_ctrls.rf_switch_ctl2 != NC) {
brunnobbco	0:561d07a737bc	1661	_rf_switch_ctl2 = 0;
brunnobbco	0:561d07a737bc	1662	}
brunnobbco	0:561d07a737bc	1663
brunnobbco	0:561d07a737bc	1664	if (_rf_ctrls.pwr_amp_ctl != NC) {
brunnobbco	0:561d07a737bc	1665	_pwr_amp_ctl = 0;
brunnobbco	0:561d07a737bc	1666	}
brunnobbco	0:561d07a737bc	1667
brunnobbco	0:561d07a737bc	1668	if (_rf_ctrls.txctl != NC) {
brunnobbco	0:561d07a737bc	1669	_txctl = 0;
brunnobbco	0:561d07a737bc	1670	}
brunnobbco	0:561d07a737bc	1671
brunnobbco	0:561d07a737bc	1672	if (_rf_ctrls.rxctl != NC) {
brunnobbco	0:561d07a737bc	1673	_rxctl = 0;
brunnobbco	0:561d07a737bc	1674	}
brunnobbco	0:561d07a737bc	1675
brunnobbco	0:561d07a737bc	1676	if (_rf_ctrls.ant_switch != NC) {
brunnobbco	0:561d07a737bc	1677	_ant_switch = 0;
brunnobbco	0:561d07a737bc	1678	}
brunnobbco	0:561d07a737bc	1679	} else {
brunnobbco	0:561d07a737bc	1680	default_antenna_switch_ctrls();
brunnobbco	0:561d07a737bc	1681	}
brunnobbco	0:561d07a737bc	1682	}
brunnobbco	0:561d07a737bc	1683	}
brunnobbco	0:561d07a737bc	1684
brunnobbco	0:561d07a737bc	1685	/*****************************************************************************
brunnobbco	0:561d07a737bc	1686	* Interrupt service routines (ISRs) - set signals to the irq_thread *
brunnobbco	0:561d07a737bc	1687	****************************************************************************/
brunnobbco	0:561d07a737bc	1688	void SX1272_LoRaRadio::dio0_irq_isr()
brunnobbco	0:561d07a737bc	1689	{
brunnobbco	0:561d07a737bc	1690	#ifdef MBED_CONF_RTOS_PRESENT
brunnobbco	0:561d07a737bc	1691	irq_thread.flags_set(SIG_DIO0);
brunnobbco	0:561d07a737bc	1692	#else
brunnobbco	0:561d07a737bc	1693	handle_dio0_irq();
brunnobbco	0:561d07a737bc	1694	#endif
brunnobbco	0:561d07a737bc	1695	}
brunnobbco	0:561d07a737bc	1696
brunnobbco	0:561d07a737bc	1697	void SX1272_LoRaRadio::dio1_irq_isr()
brunnobbco	0:561d07a737bc	1698	{
brunnobbco	0:561d07a737bc	1699	#ifdef MBED_CONF_RTOS_PRESENT
brunnobbco	0:561d07a737bc	1700	irq_thread.flags_set(SIG_DIO1);
brunnobbco	0:561d07a737bc	1701	#else
brunnobbco	0:561d07a737bc	1702	handle_dio1_irq();
brunnobbco	0:561d07a737bc	1703	#endif
brunnobbco	0:561d07a737bc	1704	}
brunnobbco	0:561d07a737bc	1705
brunnobbco	0:561d07a737bc	1706	void SX1272_LoRaRadio::dio2_irq_isr()
brunnobbco	0:561d07a737bc	1707	{
brunnobbco	0:561d07a737bc	1708	#ifdef MBED_CONF_RTOS_PRESENT
brunnobbco	0:561d07a737bc	1709	irq_thread.flags_set(SIG_DIO2);
brunnobbco	0:561d07a737bc	1710	#else
brunnobbco	0:561d07a737bc	1711	handle_dio2_irq();
brunnobbco	0:561d07a737bc	1712	#endif
brunnobbco	0:561d07a737bc	1713	}
brunnobbco	0:561d07a737bc	1714
brunnobbco	0:561d07a737bc	1715	// This is not a hardware interrupt
brunnobbco	0:561d07a737bc	1716	// we invoke it ourselves based upon
brunnobbco	0:561d07a737bc	1717	// our timers
brunnobbco	0:561d07a737bc	1718	void SX1272_LoRaRadio::timeout_irq_isr()
brunnobbco	0:561d07a737bc	1719	{
brunnobbco	0:561d07a737bc	1720	#ifdef MBED_CONF_RTOS_PRESENT
brunnobbco	0:561d07a737bc	1721	irq_thread.flags_set(SIG_TIMOUT);
brunnobbco	0:561d07a737bc	1722	#else
brunnobbco	0:561d07a737bc	1723	handle_timeout_irq();
brunnobbco	0:561d07a737bc	1724	#endif
brunnobbco	0:561d07a737bc	1725	}
brunnobbco	0:561d07a737bc	1726
brunnobbco	0:561d07a737bc	1727	void SX1272_LoRaRadio::rxsync_irq_isr()
brunnobbco	0:561d07a737bc	1728	{
brunnobbco	0:561d07a737bc	1729	#ifdef MBED_CONF_RTOS_PRESENT
brunnobbco	0:561d07a737bc	1730	irq_thread.flags_set(SIG_RXSYNC);
brunnobbco	0:561d07a737bc	1731	#else
brunnobbco	0:561d07a737bc	1732	handle_rxsync_irq();
brunnobbco	0:561d07a737bc	1733	#endif
brunnobbco	0:561d07a737bc	1734	}
brunnobbco	0:561d07a737bc	1735
brunnobbco	1:3bdd6f917bf5	1736	void SX1272_LoRaRadio::lrcad_irq_isr()
brunnobbco	1:3bdd6f917bf5	1737	{
brunnobbco	1:3bdd6f917bf5	1738	#ifdef MBED_CONF_RTOS_PRESENT
brunnobbco	1:3bdd6f917bf5	1739	irq_thread.flags_set(SIG_LRCAD);
brunnobbco	1:3bdd6f917bf5	1740	#else
brunnobbco	1:3bdd6f917bf5	1741	handle_lrcad_irq();
brunnobbco	1:3bdd6f917bf5	1742	#endif
brunnobbco	1:3bdd6f917bf5	1743	}
brunnobbco	1:3bdd6f917bf5	1744
brunnobbco	1:3bdd6f917bf5	1745	void SX1272_LoRaRadio::lrhop_irq_isr()
brunnobbco	1:3bdd6f917bf5	1746	{
brunnobbco	1:3bdd6f917bf5	1747	#ifdef MBED_CONF_RTOS_PRESENT
brunnobbco	1:3bdd6f917bf5	1748	irq_thread.flags_set(SIG_LRHOP);
brunnobbco	1:3bdd6f917bf5	1749	#else
brunnobbco	1:3bdd6f917bf5	1750	handle_lrhop_irq();
brunnobbco	1:3bdd6f917bf5	1751	#endif
brunnobbco	1:3bdd6f917bf5	1752	}
brunnobbco	1:3bdd6f917bf5	1753
brunnobbco	0:561d07a737bc	1754	/******************************************************************************
brunnobbco	0:561d07a737bc	1755	* Interrupt Handlers *
brunnobbco	0:561d07a737bc	1756	*****************************************************************************/
brunnobbco	0:561d07a737bc	1757
brunnobbco	0:561d07a737bc	1758	void SX1272_LoRaRadio::handle_dio0_irq()
brunnobbco	0:561d07a737bc	1759	{
brunnobbco	0:561d07a737bc	1760	volatile uint8_t irqFlags = 0;
brunnobbco	0:561d07a737bc	1761
brunnobbco	0:561d07a737bc	1762	push_trace(SX1272_dio0_irq);
brunnobbco	0:561d07a737bc	1763
brunnobbco	0:561d07a737bc	1764	switch (_rf_settings.state) {
brunnobbco	0:561d07a737bc	1765	case RF_RX_RUNNING:
brunnobbco	0:561d07a737bc	1766	switch (_rf_settings.modem) {
brunnobbco	0:561d07a737bc	1767	case MODEM_FSK:
brunnobbco	0:561d07a737bc	1768	if (_rf_settings.fsk.crc_on == true) {
brunnobbco	0:561d07a737bc	1769	irqFlags = read_register(REG_IRQFLAGS2);
brunnobbco	0:561d07a737bc	1770	if ((irqFlags & RF_IRQFLAGS2_CRCOK)
brunnobbco	0:561d07a737bc	1771	!= RF_IRQFLAGS2_CRCOK) {
brunnobbco	0:561d07a737bc	1772	// Clear Irqs
brunnobbco	0:561d07a737bc	1773	write_to_register(REG_IRQFLAGS1, RF_IRQFLAGS1_RSSI \|
brunnobbco	0:561d07a737bc	1774	RF_IRQFLAGS1_PREAMBLEDETECT \|
brunnobbco	0:561d07a737bc	1775	RF_IRQFLAGS1_SYNCADDRESSMATCH);
brunnobbco	0:561d07a737bc	1776	write_to_register(REG_IRQFLAGS2, RF_IRQFLAGS2_FIFOOVERRUN);
brunnobbco	0:561d07a737bc	1777
brunnobbco	0:561d07a737bc	1778
brunnobbco	0:561d07a737bc	1779	if (_rf_settings.fsk.rx_continuous == false) {
brunnobbco	0:561d07a737bc	1780	_rf_settings.state = RF_IDLE;
brunnobbco	0:561d07a737bc	1781	} else {
brunnobbco	0:561d07a737bc	1782	// Continuous mode restart Rx chain
brunnobbco	0:561d07a737bc	1783	write_to_register(REG_RXCONFIG,
brunnobbco	0:561d07a737bc	1784	read_register(REG_RXCONFIG) \|
brunnobbco	0:561d07a737bc	1785	RF_RXCONFIG_RESTARTRXWITHOUTPLLLOCK);
brunnobbco	0:561d07a737bc	1786	}
brunnobbco	0:561d07a737bc	1787
brunnobbco	0:561d07a737bc	1788	if ((_radio_events != NULL)
brunnobbco	0:561d07a737bc	1789	&& (_radio_events->rx_error)) {
brunnobbco	0:561d07a737bc	1790	_radio_events->rx_error();
brunnobbco	0:561d07a737bc	1791	}
brunnobbco	0:561d07a737bc	1792	_rf_settings.fsk_packet_handler.preamble_detected = 0;
brunnobbco	0:561d07a737bc	1793	_rf_settings.fsk_packet_handler.sync_word_detected = 0;
brunnobbco	0:561d07a737bc	1794	_rf_settings.fsk_packet_handler.nb_bytes = 0;
brunnobbco	0:561d07a737bc	1795	_rf_settings.fsk_packet_handler.size = 0;
brunnobbco	0:561d07a737bc	1796	// break from here, a CRC error happened, RX_ERROR
brunnobbco	0:561d07a737bc	1797	// was notified. No need to go any further
brunnobbco	0:561d07a737bc	1798	break;
brunnobbco	0:561d07a737bc	1799	}
brunnobbco	0:561d07a737bc	1800	}
brunnobbco	0:561d07a737bc	1801
brunnobbco	0:561d07a737bc	1802	// This block was moved from dio2_handler.
brunnobbco	0:561d07a737bc	1803	// We can have a snapshot of RSSI here as at this point it
brunnobbco	0:561d07a737bc	1804	// should be more smoothed out.
brunnobbco	0:561d07a737bc	1805	_rf_settings.fsk_packet_handler.rssi_value = -(read_register(REG_RSSIVALUE) >> 1);
brunnobbco	0:561d07a737bc	1806	_rf_settings.fsk_packet_handler.afc_value = (int32_t)(float)(((uint16_t)read_register(REG_AFCMSB) << 8) \|
brunnobbco	0:561d07a737bc	1807	(uint16_t)read_register(REG_AFCLSB)) *
brunnobbco	0:561d07a737bc	1808	(float)FREQ_STEP;
brunnobbco	0:561d07a737bc	1809	_rf_settings.fsk_packet_handler.rx_gain = (read_register(REG_LNA) >> 5) & 0x07;
brunnobbco	0:561d07a737bc	1810
brunnobbco	0:561d07a737bc	1811	// Read received packet size
brunnobbco	0:561d07a737bc	1812	if ((_rf_settings.fsk_packet_handler.size == 0)
brunnobbco	0:561d07a737bc	1813	&& (_rf_settings.fsk_packet_handler.nb_bytes == 0)) {
brunnobbco	0:561d07a737bc	1814	if (_rf_settings.fsk.fix_len == false) {
brunnobbco	0:561d07a737bc	1815	read_fifo((uint8_t*) &_rf_settings.fsk_packet_handler.size, 1);
brunnobbco	0:561d07a737bc	1816	} else {
brunnobbco	0:561d07a737bc	1817	_rf_settings.fsk_packet_handler.size = read_register(REG_PAYLOADLENGTH);
brunnobbco	0:561d07a737bc	1818	}
brunnobbco	0:561d07a737bc	1819	read_fifo(_data_buffer + _rf_settings.fsk_packet_handler.nb_bytes,
brunnobbco	0:561d07a737bc	1820	_rf_settings.fsk_packet_handler.size - _rf_settings.fsk_packet_handler.nb_bytes);
brunnobbco	0:561d07a737bc	1821	_rf_settings.fsk_packet_handler.nb_bytes +=
brunnobbco	0:561d07a737bc	1822	(_rf_settings.fsk_packet_handler.size - _rf_settings.fsk_packet_handler.nb_bytes);
brunnobbco	0:561d07a737bc	1823	} else {
brunnobbco	0:561d07a737bc	1824	read_fifo(_data_buffer + _rf_settings.fsk_packet_handler.nb_bytes,
brunnobbco	0:561d07a737bc	1825	_rf_settings.fsk_packet_handler.size - _rf_settings.fsk_packet_handler.nb_bytes);
brunnobbco	0:561d07a737bc	1826	_rf_settings.fsk_packet_handler.nb_bytes +=
brunnobbco	0:561d07a737bc	1827	(_rf_settings.fsk_packet_handler.size - _rf_settings.fsk_packet_handler.nb_bytes);
brunnobbco	0:561d07a737bc	1828	}
brunnobbco	0:561d07a737bc	1829
brunnobbco	0:561d07a737bc	1830	if (_rf_settings.fsk.rx_continuous == false) {
brunnobbco	0:561d07a737bc	1831	_rf_settings.state = RF_IDLE;
brunnobbco	0:561d07a737bc	1832	} else {
brunnobbco	0:561d07a737bc	1833	// Continuous mode restart Rx chain
brunnobbco	0:561d07a737bc	1834	write_to_register(REG_RXCONFIG, read_register(REG_RXCONFIG)
brunnobbco	0:561d07a737bc	1835	\| RF_RXCONFIG_RESTARTRXWITHOUTPLLLOCK);
brunnobbco	0:561d07a737bc	1836	}
brunnobbco	0:561d07a737bc	1837
brunnobbco	0:561d07a737bc	1838	if ((_radio_events != NULL) && (_radio_events->rx_done)) {
brunnobbco	0:561d07a737bc	1839	_radio_events->rx_done(
brunnobbco	0:561d07a737bc	1840	_data_buffer,
brunnobbco	0:561d07a737bc	1841	_rf_settings.fsk_packet_handler.size,
brunnobbco	0:561d07a737bc	1842	_rf_settings.fsk_packet_handler.rssi_value, 0);
brunnobbco	0:561d07a737bc	1843	}
brunnobbco	0:561d07a737bc	1844	_rf_settings.fsk_packet_handler.preamble_detected = 0;
brunnobbco	0:561d07a737bc	1845	_rf_settings.fsk_packet_handler.sync_word_detected = 0;
brunnobbco	0:561d07a737bc	1846	_rf_settings.fsk_packet_handler.nb_bytes = 0;
brunnobbco	0:561d07a737bc	1847	_rf_settings.fsk_packet_handler.size = 0;
brunnobbco	0:561d07a737bc	1848	break;
brunnobbco	0:561d07a737bc	1849	case MODEM_LORA: {
brunnobbco	0:561d07a737bc	1850	int8_t snr = 0;
brunnobbco	0:561d07a737bc	1851
brunnobbco	0:561d07a737bc	1852	// Clear Irq
brunnobbco	0:561d07a737bc	1853	write_to_register(REG_LR_IRQFLAGS, RFLR_IRQFLAGS_RXDONE);
brunnobbco	0:561d07a737bc	1854
brunnobbco	0:561d07a737bc	1855	irqFlags = read_register(REG_LR_IRQFLAGS);
brunnobbco	0:561d07a737bc	1856	if ((irqFlags & RFLR_IRQFLAGS_PAYLOADCRCERROR_MASK)
brunnobbco	0:561d07a737bc	1857	== RFLR_IRQFLAGS_PAYLOADCRCERROR) {
brunnobbco	0:561d07a737bc	1858	// Clear Irq
brunnobbco	0:561d07a737bc	1859	write_to_register(REG_LR_IRQFLAGS,
brunnobbco	0:561d07a737bc	1860	RFLR_IRQFLAGS_PAYLOADCRCERROR);
brunnobbco	0:561d07a737bc	1861
brunnobbco	0:561d07a737bc	1862	if (_rf_settings.lora.rx_continuous == false) {
brunnobbco	0:561d07a737bc	1863	_rf_settings.state = RF_IDLE;
brunnobbco	0:561d07a737bc	1864	}
brunnobbco	0:561d07a737bc	1865
brunnobbco	0:561d07a737bc	1866	if ((_radio_events != NULL)
brunnobbco	0:561d07a737bc	1867	&& (_radio_events->rx_error)) {
brunnobbco	0:561d07a737bc	1868	_radio_events->rx_error();
brunnobbco	0:561d07a737bc	1869	}
brunnobbco	0:561d07a737bc	1870	break;
brunnobbco	0:561d07a737bc	1871	}
brunnobbco	0:561d07a737bc	1872
brunnobbco	0:561d07a737bc	1873	_rf_settings.lora_packet_handler.snr_value = read_register(REG_LR_PKTSNRVALUE);
brunnobbco	0:561d07a737bc	1874	if (_rf_settings.lora_packet_handler.snr_value & 0x80) // The SNR sign bit is 1
brunnobbco	0:561d07a737bc	1875	{
brunnobbco	0:561d07a737bc	1876	// Invert and divide by 4
brunnobbco	0:561d07a737bc	1877	snr = ((~_rf_settings.lora_packet_handler.snr_value + 1) & 0xFF) >> 2;
brunnobbco	0:561d07a737bc	1878	snr = -snr;
brunnobbco	0:561d07a737bc	1879	} else {
brunnobbco	0:561d07a737bc	1880	// Divide by 4
brunnobbco	0:561d07a737bc	1881	snr =(_rf_settings.lora_packet_handler.snr_value & 0xFF) >> 2;
brunnobbco	0:561d07a737bc	1882	}
brunnobbco	0:561d07a737bc	1883
brunnobbco	0:561d07a737bc	1884	int16_t rssi = read_register(REG_LR_PKTRSSIVALUE);
brunnobbco	0:561d07a737bc	1885	if (snr < 0) {
brunnobbco	0:561d07a737bc	1886	_rf_settings.lora_packet_handler.rssi_value =
brunnobbco	0:561d07a737bc	1887	RSSI_OFFSET + rssi + (rssi >> 4) + snr;
brunnobbco	0:561d07a737bc	1888	} else {
brunnobbco	0:561d07a737bc	1889	_rf_settings.lora_packet_handler.rssi_value =
brunnobbco	0:561d07a737bc	1890	RSSI_OFFSET + rssi + (rssi >> 4);
brunnobbco	0:561d07a737bc	1891	}
brunnobbco	0:561d07a737bc	1892
brunnobbco	0:561d07a737bc	1893	_rf_settings.lora_packet_handler.size = read_register(REG_LR_RXNBBYTES);
brunnobbco	0:561d07a737bc	1894	read_fifo(_data_buffer, _rf_settings.lora_packet_handler.size);
brunnobbco	0:561d07a737bc	1895
brunnobbco	0:561d07a737bc	1896	if (_rf_settings.lora.rx_continuous == false) {
brunnobbco	0:561d07a737bc	1897	_rf_settings.state = RF_IDLE;
brunnobbco	0:561d07a737bc	1898	}
brunnobbco	0:561d07a737bc	1899
brunnobbco	0:561d07a737bc	1900	if ((_radio_events != NULL)
brunnobbco	0:561d07a737bc	1901	&& (_radio_events->rx_done)) {
brunnobbco	0:561d07a737bc	1902	_radio_events->rx_done(
brunnobbco	0:561d07a737bc	1903	_data_buffer,
brunnobbco	0:561d07a737bc	1904	_rf_settings.lora_packet_handler.size,
brunnobbco	0:561d07a737bc	1905	_rf_settings.lora_packet_handler.rssi_value,
brunnobbco	0:561d07a737bc	1906	_rf_settings.lora_packet_handler.snr_value);
brunnobbco	0:561d07a737bc	1907	}
brunnobbco	0:561d07a737bc	1908	}
brunnobbco	0:561d07a737bc	1909	break;
brunnobbco	0:561d07a737bc	1910	default:
brunnobbco	0:561d07a737bc	1911	break;
brunnobbco	0:561d07a737bc	1912	}
brunnobbco	0:561d07a737bc	1913	break;
brunnobbco	0:561d07a737bc	1914	case RF_TX_RUNNING:
brunnobbco	0:561d07a737bc	1915	tx_timeout_timer.detach();
brunnobbco	0:561d07a737bc	1916	// TxDone interrupt
brunnobbco	0:561d07a737bc	1917	switch (_rf_settings.modem) {
brunnobbco	0:561d07a737bc	1918	case MODEM_LORA:
brunnobbco	0:561d07a737bc	1919	// Clear Irq
brunnobbco	0:561d07a737bc	1920	write_to_register( REG_LR_IRQFLAGS, RFLR_IRQFLAGS_TXDONE);
brunnobbco	0:561d07a737bc	1921	// Intentional fall through
brunnobbco	0:561d07a737bc	1922	case MODEM_FSK:
brunnobbco	0:561d07a737bc	1923	default:
brunnobbco	0:561d07a737bc	1924	_rf_settings.state = RF_IDLE;
brunnobbco	0:561d07a737bc	1925	if ((_radio_events != NULL)
brunnobbco	0:561d07a737bc	1926	&& (_radio_events->tx_done)) {
brunnobbco	0:561d07a737bc	1927	_radio_events->tx_done();
brunnobbco	0:561d07a737bc	1928	}
brunnobbco	0:561d07a737bc	1929	break;
brunnobbco	0:561d07a737bc	1930	}
brunnobbco	0:561d07a737bc	1931	break;
brunnobbco	0:561d07a737bc	1932	default:
brunnobbco	0:561d07a737bc	1933	break;
brunnobbco	0:561d07a737bc	1934	}
brunnobbco	0:561d07a737bc	1935	}
brunnobbco	0:561d07a737bc	1936
brunnobbco	0:561d07a737bc	1937	void SX1272_LoRaRadio::handle_dio1_irq()
brunnobbco	0:561d07a737bc	1938	{
brunnobbco	0:561d07a737bc	1939	push_trace(SX1272_dio1_irq);
brunnobbco	0:561d07a737bc	1940
brunnobbco	0:561d07a737bc	1941	switch(_rf_settings.state )
brunnobbco	0:561d07a737bc	1942	{
brunnobbco	0:561d07a737bc	1943	case RF_RX_RUNNING:
brunnobbco	0:561d07a737bc	1944	switch(_rf_settings.modem ) {
brunnobbco	0:561d07a737bc	1945	case MODEM_FSK:
brunnobbco	0:561d07a737bc	1946	// FifoLevel interrupt
brunnobbco	0:561d07a737bc	1947	// Read received packet size
brunnobbco	0:561d07a737bc	1948	if( ( _rf_settings.fsk_packet_handler.size == 0 ) && ( _rf_settings.fsk_packet_handler.nb_bytes == 0 ) )
brunnobbco	0:561d07a737bc	1949	{
brunnobbco	0:561d07a737bc	1950	if( _rf_settings.fsk.fix_len == false )
brunnobbco	0:561d07a737bc	1951	{
brunnobbco	0:561d07a737bc	1952	read_fifo( ( uint8_t* )&_rf_settings.fsk_packet_handler.size, 1 );
brunnobbco	0:561d07a737bc	1953	}
brunnobbco	0:561d07a737bc	1954	else
brunnobbco	0:561d07a737bc	1955	{
brunnobbco	0:561d07a737bc	1956	_rf_settings.fsk_packet_handler.size = read_register(REG_PAYLOADLENGTH);
brunnobbco	0:561d07a737bc	1957	}
brunnobbco	0:561d07a737bc	1958	}
brunnobbco	0:561d07a737bc	1959
brunnobbco	0:561d07a737bc	1960	if( ( _rf_settings.fsk_packet_handler.size - _rf_settings.fsk_packet_handler.nb_bytes ) > _rf_settings.fsk_packet_handler.fifo_thresh )
brunnobbco	0:561d07a737bc	1961	{
brunnobbco	0:561d07a737bc	1962	read_fifo( ( _data_buffer + _rf_settings.fsk_packet_handler.nb_bytes ), _rf_settings.fsk_packet_handler.fifo_thresh );
brunnobbco	0:561d07a737bc	1963	_rf_settings.fsk_packet_handler.nb_bytes += _rf_settings.fsk_packet_handler.fifo_thresh;
brunnobbco	0:561d07a737bc	1964	}
brunnobbco	0:561d07a737bc	1965	else
brunnobbco	0:561d07a737bc	1966	{
brunnobbco	0:561d07a737bc	1967	read_fifo( ( _data_buffer + _rf_settings.fsk_packet_handler.nb_bytes ), _rf_settings.fsk_packet_handler.size - _rf_settings.fsk_packet_handler.nb_bytes );
brunnobbco	0:561d07a737bc	1968	_rf_settings.fsk_packet_handler.nb_bytes += ( _rf_settings.fsk_packet_handler.size - _rf_settings.fsk_packet_handler.nb_bytes );
brunnobbco	0:561d07a737bc	1969	}
brunnobbco	0:561d07a737bc	1970	break;
brunnobbco	0:561d07a737bc	1971	case MODEM_LORA:
brunnobbco	0:561d07a737bc	1972	break;
brunnobbco	0:561d07a737bc	1973	default:
brunnobbco	0:561d07a737bc	1974	break;
brunnobbco	0:561d07a737bc	1975	}
brunnobbco	0:561d07a737bc	1976	break;
brunnobbco	0:561d07a737bc	1977	case RF_TX_RUNNING:
brunnobbco	0:561d07a737bc	1978	switch( _rf_settings.modem )
brunnobbco	0:561d07a737bc	1979	{
brunnobbco	0:561d07a737bc	1980	case MODEM_FSK:
brunnobbco	0:561d07a737bc	1981	// FifoLevel interrupt
brunnobbco	0:561d07a737bc	1982	if( ( _rf_settings.fsk_packet_handler.size - _rf_settings.fsk_packet_handler.nb_bytes ) > _rf_settings.fsk_packet_handler.chunk_size )
brunnobbco	0:561d07a737bc	1983	{
brunnobbco	0:561d07a737bc	1984	write_fifo(( _data_buffer + _rf_settings.fsk_packet_handler.nb_bytes ), _rf_settings.fsk_packet_handler.chunk_size );
brunnobbco	0:561d07a737bc	1985	_rf_settings.fsk_packet_handler.nb_bytes += _rf_settings.fsk_packet_handler.chunk_size;
brunnobbco	0:561d07a737bc	1986	}
brunnobbco	0:561d07a737bc	1987	else
brunnobbco	0:561d07a737bc	1988	{
brunnobbco	0:561d07a737bc	1989	// Write the last chunk of data
brunnobbco	0:561d07a737bc	1990	write_fifo( _data_buffer + _rf_settings.fsk_packet_handler.nb_bytes, _rf_settings.fsk_packet_handler.size - _rf_settings.fsk_packet_handler.nb_bytes );
brunnobbco	0:561d07a737bc	1991	_rf_settings.fsk_packet_handler.nb_bytes += _rf_settings.fsk_packet_handler.size - _rf_settings.fsk_packet_handler.nb_bytes;
brunnobbco	0:561d07a737bc	1992	}
brunnobbco	0:561d07a737bc	1993	break;
brunnobbco	0:561d07a737bc	1994	case MODEM_LORA:
brunnobbco	0:561d07a737bc	1995	break;
brunnobbco	0:561d07a737bc	1996	default:
brunnobbco	0:561d07a737bc	1997	break;
brunnobbco	0:561d07a737bc	1998	}
brunnobbco	0:561d07a737bc	1999	break;
brunnobbco	0:561d07a737bc	2000	default:
brunnobbco	0:561d07a737bc	2001	break;
brunnobbco	0:561d07a737bc	2002	}
brunnobbco	0:561d07a737bc	2003	}
brunnobbco	0:561d07a737bc	2004
brunnobbco	0:561d07a737bc	2005	void SX1272_LoRaRadio::handle_dio2_irq(void)
brunnobbco	0:561d07a737bc	2006	{
brunnobbco	0:561d07a737bc	2007	push_trace(SX1272_dio2_irq);
brunnobbco	0:561d07a737bc	2008
brunnobbco	0:561d07a737bc	2009	switch(_rf_settings.state )
brunnobbco	0:561d07a737bc	2010	{
brunnobbco	0:561d07a737bc	2011	case RF_RX_RUNNING:
brunnobbco	0:561d07a737bc	2012	switch( _rf_settings.modem )
brunnobbco	0:561d07a737bc	2013	{
brunnobbco	0:561d07a737bc	2014	case MODEM_FSK:
brunnobbco	0:561d07a737bc	2015	_rf_settings.fsk_packet_handler.preamble_detected = 0;
brunnobbco	0:561d07a737bc	2016	_rf_settings.fsk_packet_handler.sync_word_detected = 0;
brunnobbco	0:561d07a737bc	2017	_rf_settings.fsk_packet_handler.nb_bytes = 0;
brunnobbco	0:561d07a737bc	2018	_rf_settings.fsk_packet_handler.size = 0;
brunnobbco	0:561d07a737bc	2019
brunnobbco	0:561d07a737bc	2020	// Clear Irqs
brunnobbco	0:561d07a737bc	2021	write_to_register(REG_IRQFLAGS1, RF_IRQFLAGS1_RSSI \|
brunnobbco	0:561d07a737bc	2022	RF_IRQFLAGS1_PREAMBLEDETECT \|
brunnobbco	0:561d07a737bc	2023	RF_IRQFLAGS1_SYNCADDRESSMATCH \|
brunnobbco	0:561d07a737bc	2024	RF_IRQFLAGS1_TIMEOUT);
brunnobbco	0:561d07a737bc	2025
brunnobbco	0:561d07a737bc	2026	write_to_register( REG_IRQFLAGS2, RF_IRQFLAGS2_FIFOOVERRUN);
brunnobbco	0:561d07a737bc	2027
brunnobbco	0:561d07a737bc	2028	if (_rf_settings.fsk.rx_continuous == true) {
brunnobbco	0:561d07a737bc	2029	// Continuous mode restart Rx chain
brunnobbco	0:561d07a737bc	2030	write_to_register( REG_RXCONFIG,
brunnobbco	0:561d07a737bc	2031	read_register(REG_RXCONFIG) \|
brunnobbco	0:561d07a737bc	2032	RF_RXCONFIG_RESTARTRXWITHOUTPLLLOCK);
brunnobbco	0:561d07a737bc	2033	} else {
brunnobbco	0:561d07a737bc	2034	_rf_settings.state = RF_IDLE;
brunnobbco	0:561d07a737bc	2035	}
brunnobbco	0:561d07a737bc	2036
brunnobbco	0:561d07a737bc	2037	if ((_radio_events != NULL)
brunnobbco	0:561d07a737bc	2038	&& (_radio_events->rx_timeout)) {
brunnobbco	0:561d07a737bc	2039	_radio_events->rx_timeout();
brunnobbco	0:561d07a737bc	2040	}
brunnobbco	0:561d07a737bc	2041
brunnobbco	0:561d07a737bc	2042	break;
brunnobbco	0:561d07a737bc	2043	case MODEM_LORA:
brunnobbco	0:561d07a737bc	2044	break;
brunnobbco	0:561d07a737bc	2045	default:
brunnobbco	0:561d07a737bc	2046	break;
brunnobbco	0:561d07a737bc	2047	}
brunnobbco	0:561d07a737bc	2048	break;
brunnobbco	0:561d07a737bc	2049	case RF_TX_RUNNING:
brunnobbco	0:561d07a737bc	2050	switch( _rf_settings.modem )
brunnobbco	0:561d07a737bc	2051	{
brunnobbco	0:561d07a737bc	2052	case MODEM_FSK:
brunnobbco	0:561d07a737bc	2053	break;
brunnobbco	0:561d07a737bc	2054	case MODEM_LORA:
brunnobbco	0:561d07a737bc	2055	break;
brunnobbco	0:561d07a737bc	2056	default:
brunnobbco	0:561d07a737bc	2057	break;
brunnobbco	0:561d07a737bc	2058	}
brunnobbco	0:561d07a737bc	2059	break;
brunnobbco	0:561d07a737bc	2060	default:
brunnobbco	0:561d07a737bc	2061	break;
brunnobbco	0:561d07a737bc	2062	}
brunnobbco	0:561d07a737bc	2063	}
brunnobbco	0:561d07a737bc	2064
brunnobbco	0:561d07a737bc	2065	void SX1272_LoRaRadio::handle_timeout_irq()
brunnobbco	0:561d07a737bc	2066	{
brunnobbco	0:561d07a737bc	2067	push_trace(SX1272_timeout_irq);
brunnobbco	0:561d07a737bc	2068	tx_timeout_timer.detach();
brunnobbco	0:561d07a737bc	2069
brunnobbco	0:561d07a737bc	2070	if (_rf_settings.state == RF_TX_RUNNING) {
brunnobbco	0:561d07a737bc	2071	// Tx timeout shouldn't happen.
brunnobbco	0:561d07a737bc	2072	// But it has been observed that when it happens it is a result of a
brunnobbco	0:561d07a737bc	2073	// corrupted SPI transfer
brunnobbco	0:561d07a737bc	2074	// The workaround is to put the radio in a known state.
brunnobbco	0:561d07a737bc	2075	// Thus, we re-initialize it.
brunnobbco	0:561d07a737bc	2076
brunnobbco	0:561d07a737bc	2077	// Initialize radio default values
brunnobbco	0:561d07a737bc	2078	set_operation_mode(RF_OPMODE_SLEEP);
brunnobbco	0:561d07a737bc	2079
brunnobbco	0:561d07a737bc	2080	setup_registers();
brunnobbco	0:561d07a737bc	2081
brunnobbco	0:561d07a737bc	2082	set_modem(MODEM_FSK);
brunnobbco	0:561d07a737bc	2083
brunnobbco	0:561d07a737bc	2084	// Restore previous network type setting.
brunnobbco	0:561d07a737bc	2085	set_public_network(_rf_settings.lora.public_network);
brunnobbco	0:561d07a737bc	2086
brunnobbco	0:561d07a737bc	2087	_rf_settings.state = RF_IDLE;
brunnobbco	0:561d07a737bc	2088
brunnobbco	0:561d07a737bc	2089	if ((_radio_events != NULL) && (_radio_events->tx_timeout)) {
brunnobbco	0:561d07a737bc	2090	_radio_events->tx_timeout();
brunnobbco	0:561d07a737bc	2091	}
brunnobbco	0:561d07a737bc	2092	}
brunnobbco	0:561d07a737bc	2093	}
brunnobbco	0:561d07a737bc	2094
brunnobbco	0:561d07a737bc	2095	void SX1272_LoRaRadio::handle_rxsync_irq()
brunnobbco	0:561d07a737bc	2096	{
brunnobbco	0:561d07a737bc	2097	rx_sync_timer.detach();
brunnobbco	0:561d07a737bc	2098
brunnobbco	1:3bdd6f917bf5	2099	if (_rf_settings.modem != MODEM_LORA) {
brunnobbco	1:3bdd6f917bf5	2100	return;
brunnobbco	1:3bdd6f917bf5	2101	}
brunnobbco	1:3bdd6f917bf5	2102	if (_rf_settings.state != RF_RX_RUNNING) {
brunnobbco	1:3bdd6f917bf5	2103	return;
brunnobbco	1:3bdd6f917bf5	2104	}
brunnobbco	1:3bdd6f917bf5	2105
brunnobbco	1:3bdd6f917bf5	2106	if((read_register(REG_OPMODE) & 0x7) == RFLR_OPMODE_RECEIVER_SINGLE)
brunnobbco	1:3bdd6f917bf5	2107	{
brunnobbco	1:3bdd6f917bf5	2108	rx_sync_timer.attach_us(callback(this, &SX1272_LoRaRadio::rxsync_irq_isr), 1000);
brunnobbco	1:3bdd6f917bf5	2109	}
brunnobbco	1:3bdd6f917bf5	2110	else
brunnobbco	0:561d07a737bc	2111	{
brunnobbco	1:3bdd6f917bf5	2112	push_trace(SX1272_rxsymb_irq);
brunnobbco	1:3bdd6f917bf5	2113
brunnobbco	1:3bdd6f917bf5	2114	// Sync time out
brunnobbco	1:3bdd6f917bf5	2115	_rf_settings.state = RF_IDLE;
brunnobbco	1:3bdd6f917bf5	2116
brunnobbco	1:3bdd6f917bf5	2117	if ((_radio_events != NULL) && (_radio_events->rx_timeout)) {
brunnobbco	1:3bdd6f917bf5	2118	_radio_events->rx_timeout();
brunnobbco	1:3bdd6f917bf5	2119	}
brunnobbco	1:3bdd6f917bf5	2120	}
brunnobbco	1:3bdd6f917bf5	2121	}
brunnobbco	1:3bdd6f917bf5	2122
brunnobbco	1:3bdd6f917bf5	2123	void SX1272_LoRaRadio::handle_lrcad_irq()
brunnobbco	1:3bdd6f917bf5	2124	{
brunnobbco	1:3bdd6f917bf5	2125	lora_cad_timer.detach();
brunnobbco	1:3bdd6f917bf5	2126
brunnobbco	1:3bdd6f917bf5	2127	if (_rf_settings.modem != MODEM_LORA) {
brunnobbco	1:3bdd6f917bf5	2128	return;
brunnobbco	1:3bdd6f917bf5	2129	}
brunnobbco	1:3bdd6f917bf5	2130	if (_rf_settings.state != RF_CAD) {
brunnobbco	1:3bdd6f917bf5	2131	return;
brunnobbco	1:3bdd6f917bf5	2132	}
brunnobbco	1:3bdd6f917bf5	2133
brunnobbco	1:3bdd6f917bf5	2134	if((read_register(REG_OPMODE) & 0x7) == RFLR_OPMODE_CAD)
brunnobbco	1:3bdd6f917bf5	2135	{
brunnobbco	1:3bdd6f917bf5	2136	lora_cad_timer.attach_us(callback(this, &SX1272_LoRaRadio::lrcad_irq_isr), 1000);
brunnobbco	1:3bdd6f917bf5	2137	}
brunnobbco	1:3bdd6f917bf5	2138	else
brunnobbco	1:3bdd6f917bf5	2139	{
brunnobbco	1:3bdd6f917bf5	2140	_rf_settings.state = RF_IDLE;
brunnobbco	1:3bdd6f917bf5	2141
brunnobbco	1:3bdd6f917bf5	2142	if( ( read_register( REG_LR_IRQFLAGS ) & RFLR_IRQFLAGS_CADDETECTED ) == RFLR_IRQFLAGS_CADDETECTED )
brunnobbco	0:561d07a737bc	2143	{
brunnobbco	1:3bdd6f917bf5	2144	// Clear Irq
brunnobbco	1:3bdd6f917bf5	2145	write_to_register( REG_LR_IRQFLAGS, RFLR_IRQFLAGS_CADDETECTED \| RFLR_IRQFLAGS_CADDONE );
brunnobbco	1:3bdd6f917bf5	2146
brunnobbco	1:3bdd6f917bf5	2147	if( ( _radio_events != NULL ) && ( _radio_events->cad_done ) )
brunnobbco	1:3bdd6f917bf5	2148	{
brunnobbco	1:3bdd6f917bf5	2149	_radio_events->cad_done( true );
brunnobbco	1:3bdd6f917bf5	2150	}
brunnobbco	0:561d07a737bc	2151	}
brunnobbco	0:561d07a737bc	2152	else
brunnobbco	0:561d07a737bc	2153	{
brunnobbco	1:3bdd6f917bf5	2154	// Clear Irq
brunnobbco	1:3bdd6f917bf5	2155	write_to_register( REG_LR_IRQFLAGS, RFLR_IRQFLAGS_CADDONE );
brunnobbco	1:3bdd6f917bf5	2156	if( ( _radio_events != NULL ) && ( _radio_events->cad_done ) )
brunnobbco	1:3bdd6f917bf5	2157	{
brunnobbco	1:3bdd6f917bf5	2158	_radio_events->cad_done( false );
brunnobbco	0:561d07a737bc	2159	}
brunnobbco	0:561d07a737bc	2160	}
brunnobbco	0:561d07a737bc	2161	}
brunnobbco	0:561d07a737bc	2162	}
brunnobbco	0:561d07a737bc	2163
brunnobbco	1:3bdd6f917bf5	2164	void SX1272_LoRaRadio::handle_lrhop_irq()
brunnobbco	1:3bdd6f917bf5	2165	{
brunnobbco	1:3bdd6f917bf5	2166	lora_hop_timer.detach();
brunnobbco	1:3bdd6f917bf5	2167
brunnobbco	1:3bdd6f917bf5	2168	if ((_rf_settings.state != RF_TX_RUNNING) && (_rf_settings.state != RF_RX_RUNNING)) {
brunnobbco	1:3bdd6f917bf5	2169	return;
brunnobbco	1:3bdd6f917bf5	2170	}
brunnobbco	1:3bdd6f917bf5	2171	if ((_rf_settings.modem != MODEM_LORA) \|\| (_rf_settings.lora.freq_hop_on == false)) {
brunnobbco	1:3bdd6f917bf5	2172	return;
brunnobbco	1:3bdd6f917bf5	2173	}
brunnobbco	1:3bdd6f917bf5	2174
brunnobbco	1:3bdd6f917bf5	2175	lora_hop_timer.attach_us(callback(this, &SX1272_LoRaRadio::lrhop_irq_isr), 1000);
brunnobbco	1:3bdd6f917bf5	2176
brunnobbco	1:3bdd6f917bf5	2177	if((read_register(REG_LR_IRQFLAGS) & RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL) == RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL)
brunnobbco	1:3bdd6f917bf5	2178	{
brunnobbco	1:3bdd6f917bf5	2179	write_to_register( REG_LR_IRQFLAGS, RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL );
brunnobbco	1:3bdd6f917bf5	2180
brunnobbco	1:3bdd6f917bf5	2181	if((_radio_events != NULL) && (_radio_events->fhss_change_channel))
brunnobbco	1:3bdd6f917bf5	2182	{
brunnobbco	1:3bdd6f917bf5	2183	_radio_events->fhss_change_channel((read_register( REG_LR_HOPCHANNEL ) & RFLR_HOPCHANNEL_CHANNEL_MASK));
brunnobbco	1:3bdd6f917bf5	2184	}
brunnobbco	1:3bdd6f917bf5	2185	}
brunnobbco	1:3bdd6f917bf5	2186	}
brunnobbco	1:3bdd6f917bf5	2187
brunnobbco	0:561d07a737bc	2188	bool SX1272_LoRaRadio::pop_trace(SX1272_Trace &trace)
brunnobbco	0:561d07a737bc	2189	{
brunnobbco	0:561d07a737bc	2190	if (trace_buf.empty()) {
brunnobbco	0:561d07a737bc	2191	return false;
brunnobbco	0:561d07a737bc	2192	}
brunnobbco	0:561d07a737bc	2193	trace_buf.pop(trace);
brunnobbco	0:561d07a737bc	2194	return true;
brunnobbco	0:561d07a737bc	2195	}
brunnobbco	0:561d07a737bc	2196
brunnobbco	0:561d07a737bc	2197	void SX1272_LoRaRadio::push_trace(uint32_t state)
brunnobbco	0:561d07a737bc	2198	{
brunnobbco	0:561d07a737bc	2199	SX1272_Trace trace;
brunnobbco	0:561d07a737bc	2200
brunnobbco	0:561d07a737bc	2201	trace.state = state;
brunnobbco	0:561d07a737bc	2202	trace.interval = trace_timer.read_us();
brunnobbco	0:561d07a737bc	2203	trace_timer.reset();
brunnobbco	0:561d07a737bc	2204
brunnobbco	0:561d07a737bc	2205	trace_buf.push(trace);
brunnobbco	0:561d07a737bc	2206	}

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Type:	Library
Created:	12 Nov 2020
Imports:	4
Forks:	0
Commits:	6
Dependents:	9
Dependencies:	0
Followers:	1

SX1272/SX1272_LoRaRadio.cpp@1:3bdd6f917bf5, 2020-11-12 (annotated)

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