1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
// **********************************************************************************
// Driver definition for HopeRF RFM69W/RFM69HW/RFM69CW/RFM69HCW, Semtech SX1231/1231H
// **********************************************************************************
// Copyright Felix Rusu 2016, http://www.LowPowerLab.com/contact
// **********************************************************************************
// License
// **********************************************************************************
// This program is free software; you can redistribute it
// and/or modify it under the terms of the GNU General
// Public License as published by the Free Software
// Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will
// be useful, but WITHOUT ANY WARRANTY; without even the
// implied warranty of MERCHANTABILITY or FITNESS FOR A
// PARTICULAR PURPOSE. See the GNU General Public
// License for more details.
//
// Licence can be viewed at
// http://www.gnu.org/licenses/gpl-3.0.txt
//
// Please maintain this license information along with authorship
// and copyright notices in any redistribution of this code
// **********************************************************************************
// **********************************************************************************
// Converted to AVR environment by Zulkar Nayem
// **********************************************************************************
#include <avr/io.h>
#ifndef RFM69_h
#define RFM69_h
// Definitions
# define SS_DDR DDRB
# define SS_PORT PORTB
# define SS_PIN PB2
# define INT_DDR DDRD
# define INT_PORT PORTD
# define INT_PIN PIND
# define INT_pin_num 2
# define INT_PIN_n PD2
# define INTn INT0
# define ISCn0 ISC00
# define ISCn1 ISC01
# define INT_VECT INT0_vect
# define EICRn EICRA
#define RF69_MAX_DATA_LEN 61 // to take advantage of the built in AES/CRC we want to limit the frame size to the internal FIFO size (66 bytes - 3 bytes overhead - 2 bytes crc)
#define CSMA_LIMIT -90 // upper RX signal sensitivity threshold in dBm for carrier sense access
#define RF69_MODE_SLEEP 0 // XTAL OFF
#define RF69_MODE_STANDBY 1 // XTAL ON
#define RF69_MODE_SYNTH 2 // PLL ON
#define RF69_MODE_RX 3 // RX MODE
#define RF69_MODE_TX 4 // TX MODE
#define null 0
#define COURSE_TEMP_COEF -90 // puts the temperature reading in the ballpark, user can fine tune the returned value
#define RF69_BROADCAST_ADDR 0
#define RF69_CSMA_LIMIT_MS 1000
#define RF69_TX_LIMIT_MS 1000
#define RF69_FSTEP 61.03515625 // == FXOSC / 2^19 = 32MHz / 2^19 (p13 in datasheet) / FXOSC = module crystal oscillator frequency
// TWS: define CTLbyte bits
#define RFM69_CTL_SENDACK 0x80
#define RFM69_CTL_REQACK 0x40
// Global Variables
volatile uint8_t DATA[RF69_MAX_DATA_LEN+1]; // RX/TX payload buffer, including end of string NULL char
// Function Declerations
void rfm69_init(uint16_t freqBand, uint8_t nodeID, uint8_t networkID);
void setAddress(uint8_t addr);
void setNetwork(uint8_t networkID);
uint8_t canSend();
void send(uint8_t toAddress, const void* buffer, uint8_t bufferSize, uint8_t requestACK);
uint8_t sendWithRetry(uint8_t toAddress, const void* buffer, uint8_t bufferSize, uint8_t retries, uint8_t retryWaitTime);
uint8_t ACKRequested();
uint8_t ACKReceived(uint8_t fromNodeID);
void receiveBegin();
uint8_t receiveDone();
void sendACK(const void* buffer, uint8_t bufferSize);
uint32_t getFrequency();
void setFrequency(uint32_t freqHz);
void encrypt(const char* key);
int16_t readRSSI(uint8_t forceTrigger);
void setHighPower(uint8_t onOFF); // has to be called after initialize() for RFM69HW
void setPowerLevel(uint8_t level); // reduce/increase transmit power level
void sleep();
uint8_t readTemperature(uint8_t calFactor); // get CMOS temperature (8bit)
void rcCalibration(); // calibrate the internal RC oscillator for use in wide temperature variations - see datasheet section [4.3.5. RC Timer Accuracy]
uint8_t readReg(uint8_t addr);
void writeReg(uint8_t addr, uint8_t val);
void sendFrame(uint8_t toAddress, const void* buffer, uint8_t size, uint8_t requestACK, uint8_t sendACK);
void setMode(uint8_t mode);
void setHighPowerRegs(uint8_t onOff);
void promiscuous(uint8_t onOff);
void maybeInterrupts();
void select();
void unselect();
uint8_t receiveDone();
#endif
|
