Devin Alexander / Mbed OS MAX326xxFTHR_LoRa_RFM95_PingPong_Example

This program is guided to help establish a connection between two RFM95 900MHz LoRa radio modules using Maxim Integrated's Feather MCUs (MAX32630FTHR Mbed and the MAX32620FTHR Mbed). Once the radios are configured after powering on and if the radios are wired correctly, the two radios will self identify as either a master or a slave, and will then proceed to PING and PONG back and forth. Information about what is happening between the radios can be seen if the two boards are hooked up to a USB COM port through the included DAPLINK/MAX32625PICO modules.

Dependencies:   BufferedSerial SX1276GenericLib USBDeviceHT max32630fthr

Fork of MAX326xxFTHR_LoRa_PingPong by Devin Alexander

SX1276GenericPingPong/GenericPingPong.cpp@1:65d602e2d746, 2017-05-10 (annotated)

Committer:
Helmut64
Date:
Wed May 10 12:37:06 2017 +0000
Revision:
1:65d602e2d746
Parent:
0:c43b6919ae15
Child:
3:dc560d3e9070
Added simple sleep to save power.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Helmut64 0:c43b6919ae15 1 /*
Helmut64 0:c43b6919ae15 2 * This file contains a copy of the master content sx1276PingPong
Helmut64 0:c43b6919ae15 3 * with adaption for the SX1276Generic environment
Helmut64 0:c43b6919ae15 4 * (c) 2017 Helmut Tschemernjak
Helmut64 0:c43b6919ae15 5 * 30826 Garbsen (Hannover) Germany
Helmut64 0:c43b6919ae15 6 */
Helmut64 0:c43b6919ae15 7
Helmut64 0:c43b6919ae15 8 #include "mbed.h"
Helmut64 0:c43b6919ae15 9 #include "PinMap.h"
Helmut64 0:c43b6919ae15 10 #include "GenericPingPong.h"
Helmut64 0:c43b6919ae15 11 #include "sx1276-mbed-hal.h"
Helmut64 0:c43b6919ae15 12 #include "main.h"
Helmut64 0:c43b6919ae15 13
Helmut64 0:c43b6919ae15 14 #ifdef FEATURE_LORA
Helmut64 0:c43b6919ae15 15
Helmut64 0:c43b6919ae15 16 /* Set this flag to '1' to display debug messages on the console */
Helmut64 0:c43b6919ae15 17 #define DEBUG_MESSAGE 1
Helmut64 0:c43b6919ae15 18
Helmut64 0:c43b6919ae15 19 /* Set this flag to '1' to use the LoRa modulation or to '0' to use FSK modulation */
Helmut64 0:c43b6919ae15 20 #define USE_MODEM_LORA 1
Helmut64 0:c43b6919ae15 21 #define USE_MODEM_FSK !USE_MODEM_LORA
Helmut64 0:c43b6919ae15 22 #define RF_FREQUENCY RF_FREQUENCY_868_1 // Hz
Helmut64 0:c43b6919ae15 23 #define TX_OUTPUT_POWER 14 // 14 dBm
Helmut64 0:c43b6919ae15 24
Helmut64 0:c43b6919ae15 25 #if USE_MODEM_LORA == 1
Helmut64 0:c43b6919ae15 26
Helmut64 0:c43b6919ae15 27 #define LORA_BANDWIDTH LORA_BANKWIDTH_125kHz
Helmut64 0:c43b6919ae15 28 #define LORA_SPREADING_FACTOR LORA_SF7
Helmut64 0:c43b6919ae15 29 #define LORA_CODINGRATE LORA_ERROR_CODING_RATE_4_5
Helmut64 0:c43b6919ae15 30
Helmut64 0:c43b6919ae15 31 #define LORA_PREAMBLE_LENGTH 8 // Same for Tx and Rx
Helmut64 0:c43b6919ae15 32 #define LORA_SYMBOL_TIMEOUT 5 // Symbols
Helmut64 0:c43b6919ae15 33 #define LORA_FIX_LENGTH_PAYLOAD_ON false
Helmut64 0:c43b6919ae15 34 #define LORA_FHSS_ENABLED false
Helmut64 0:c43b6919ae15 35 #define LORA_NB_SYMB_HOP 4
Helmut64 0:c43b6919ae15 36 #define LORA_IQ_INVERSION_ON false
Helmut64 0:c43b6919ae15 37 #define LORA_CRC_ENABLED true
Helmut64 0:c43b6919ae15 38
Helmut64 0:c43b6919ae15 39 #elif USE_MODEM_FSK == 1
Helmut64 0:c43b6919ae15 40
Helmut64 0:c43b6919ae15 41 #define FSK_FDEV 25000 // Hz
Helmut64 0:c43b6919ae15 42 #define FSK_DATARATE 19200 // bps
Helmut64 0:c43b6919ae15 43 #define FSK_BANDWIDTH 50000 // Hz
Helmut64 0:c43b6919ae15 44 #define FSK_AFC_BANDWIDTH 83333 // Hz
Helmut64 0:c43b6919ae15 45 #define FSK_PREAMBLE_LENGTH 5 // Same for Tx and Rx
Helmut64 0:c43b6919ae15 46 #define FSK_FIX_LENGTH_PAYLOAD_ON false
Helmut64 0:c43b6919ae15 47 #define FSK_CRC_ENABLED true
Helmut64 0:c43b6919ae15 48
Helmut64 0:c43b6919ae15 49 #else
Helmut64 0:c43b6919ae15 50 #error "Please define a modem in the compiler options."
Helmut64 0:c43b6919ae15 51 #endif
Helmut64 0:c43b6919ae15 52
Helmut64 0:c43b6919ae15 53
Helmut64 0:c43b6919ae15 54 #define RX_TIMEOUT_VALUE 3500 // in ms
Helmut64 0:c43b6919ae15 55
Helmut64 0:c43b6919ae15 56 //#define BUFFER_SIZE 32 // Define the payload size here
Helmut64 0:c43b6919ae15 57 #define BUFFER_SIZE 64 // Define the payload size here
Helmut64 0:c43b6919ae15 58
Helmut64 0:c43b6919ae15 59 /*
Helmut64 0:c43b6919ae15 60 * Global variables declarations
Helmut64 0:c43b6919ae15 61 */
Helmut64 0:c43b6919ae15 62 typedef enum
Helmut64 0:c43b6919ae15 63 {
Helmut64 0:c43b6919ae15 64 LOWPOWER = 0,
Helmut64 0:c43b6919ae15 65 IDLE,
Helmut64 0:c43b6919ae15 66
Helmut64 0:c43b6919ae15 67 RX,
Helmut64 0:c43b6919ae15 68 RX_TIMEOUT,
Helmut64 0:c43b6919ae15 69 RX_ERROR,
Helmut64 0:c43b6919ae15 70
Helmut64 0:c43b6919ae15 71 TX,
Helmut64 0:c43b6919ae15 72 TX_TIMEOUT,
Helmut64 0:c43b6919ae15 73
Helmut64 0:c43b6919ae15 74 CAD,
Helmut64 0:c43b6919ae15 75 CAD_DONE
Helmut64 0:c43b6919ae15 76 } AppStates_t;
Helmut64 0:c43b6919ae15 77
Helmut64 0:c43b6919ae15 78 volatile AppStates_t State = LOWPOWER;
Helmut64 0:c43b6919ae15 79
Helmut64 0:c43b6919ae15 80 /*!
Helmut64 0:c43b6919ae15 81 * Radio events function pointer
Helmut64 0:c43b6919ae15 82 */
Helmut64 0:c43b6919ae15 83 static RadioEvents_t RadioEvents;
Helmut64 0:c43b6919ae15 84
Helmut64 0:c43b6919ae15 85 /*
Helmut64 0:c43b6919ae15 86 * Global variables declarations
Helmut64 0:c43b6919ae15 87 */
Helmut64 0:c43b6919ae15 88 SX1276Generic *Radio;
Helmut64 0:c43b6919ae15 89
Helmut64 0:c43b6919ae15 90
Helmut64 0:c43b6919ae15 91 const uint8_t PingMsg[] = { 0xff, 0xff, 0x00, 0x00, 'P', 'I', 'N', 'G'};// "PING";
Helmut64 0:c43b6919ae15 92 const uint8_t PongMsg[] = { 0xff, 0xff, 0x00, 0x00, 'P', 'O', 'N', 'G'};// "PONG";
Helmut64 0:c43b6919ae15 93
Helmut64 0:c43b6919ae15 94 uint16_t BufferSize = BUFFER_SIZE;
Helmut64 0:c43b6919ae15 95 uint8_t *Buffer;
Helmut64 0:c43b6919ae15 96
Helmut64 0:c43b6919ae15 97 DigitalOut *led3;
Helmut64 0:c43b6919ae15 98
Helmut64 0:c43b6919ae15 99
Helmut64 0:c43b6919ae15 100 int SX1276PingPong()
Helmut64 0:c43b6919ae15 101 {
Helmut64 0:c43b6919ae15 102 #if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
Helmut64 0:c43b6919ae15 103 DigitalOut *led = new DigitalOut(LED2);
Helmut64 0:c43b6919ae15 104 #elif defined(TARGET_NUCLEO_L073RZ)
Helmut64 0:c43b6919ae15 105 DigitalOut *led = new DigitalOut(LED4); // RX red
Helmut64 0:c43b6919ae15 106 led3 = new DigitalOut(LED3); // TX blue
Helmut64 0:c43b6919ae15 107 #else
Helmut64 0:c43b6919ae15 108 DigitalOut *led = new DigitalOut(LED1);
Helmut64 0:c43b6919ae15 109 led3 = led;
Helmut64 0:c43b6919ae15 110 #endif
Helmut64 0:c43b6919ae15 111
Helmut64 0:c43b6919ae15 112 Buffer = new uint8_t[BUFFER_SIZE];
Helmut64 0:c43b6919ae15 113 *led3 = 1;
Helmut64 0:c43b6919ae15 114
Helmut64 0:c43b6919ae15 115 #ifdef B_L072Z_LRWAN1_LORA
Helmut64 0:c43b6919ae15 116 Radio = new SX1276Generic(NULL, MURATA_SX1276,
Helmut64 0:c43b6919ae15 117 LORA_SPI_MOSI, LORA_SPI_MISO, LORA_SPI_SCLK, LORA_CS, LORA_RESET,
Helmut64 0:c43b6919ae15 118 LORA_DIO0, LORA_DIO1, LORA_DIO2, LORA_DIO3, LORA_DIO4, LORA_DIO5,
Helmut64 0:c43b6919ae15 119 LORA_ANT_RX, LORA_ANT_TX, LORA_ANT_BOOST, LORA_TCXO);
Helmut64 0:c43b6919ae15 120 #else // RFM95
Helmut64 0:c43b6919ae15 121 Radio = new SX1276Generic(NULL, RFM95_SX1276,
Helmut64 0:c43b6919ae15 122 LORA_SPI_MOSI, LORA_SPI_MISO, LORA_SPI_SCLK, LORA_CS, LORA_RESET,
Helmut64 0:c43b6919ae15 123 LORA_DIO0, LORA_DIO1, LORA_DIO2, LORA_DIO3, LORA_DIO4, LORA_DIO5);
Helmut64 0:c43b6919ae15 124
Helmut64 0:c43b6919ae15 125 #endif
Helmut64 0:c43b6919ae15 126
Helmut64 0:c43b6919ae15 127 uint8_t i;
Helmut64 0:c43b6919ae15 128 bool isMaster = true;
Helmut64 0:c43b6919ae15 129
Helmut64 0:c43b6919ae15 130 dprintf("SX1276 Ping Pong Demo Application" );
Helmut64 0:c43b6919ae15 131 dprintf("Freqency: %.1f", (double)RF_FREQUENCY/1000000.0);
Helmut64 0:c43b6919ae15 132 dprintf("TXPower: %d dBm", TX_OUTPUT_POWER);
Helmut64 0:c43b6919ae15 133 #if USE_MODEM_LORA == 1
Helmut64 0:c43b6919ae15 134 if (LORA_BANDWIDTH == LORA_BANKWIDTH_125kHz) {
Helmut64 0:c43b6919ae15 135 dprintf("Bandwidth: %d kHz", 125);
Helmut64 0:c43b6919ae15 136 } else if (LORA_BANDWIDTH == LORA_BANKWIDTH_250kHz) {
Helmut64 0:c43b6919ae15 137 dprintf("Bandwidth: %d kHz", 250);
Helmut64 0:c43b6919ae15 138 } else if (LORA_BANDWIDTH == LORA_BANKWIDTH_500kHz) {
Helmut64 0:c43b6919ae15 139 dprintf("Bandwidth: %d kHz", 500);
Helmut64 0:c43b6919ae15 140 } else {
Helmut64 0:c43b6919ae15 141 dprintf("Unkown Bandwidth: %d kHz", LORA_BANDWIDTH);
Helmut64 0:c43b6919ae15 142 }
Helmut64 0:c43b6919ae15 143 dprintf("Spreading factor: SF%d", LORA_SPREADING_FACTOR);
Helmut64 0:c43b6919ae15 144 #elif USE_MODEM_FSK == 1
Helmut64 0:c43b6919ae15 145 dprintf("Bandwidth: %d kHz", FSK_BANDWIDTH);
Helmut64 0:c43b6919ae15 146 dprintf("Baudrate: %d", FSK_DATARATE);
Helmut64 0:c43b6919ae15 147 #endif
Helmut64 0:c43b6919ae15 148 // Initialize Radio driver
Helmut64 0:c43b6919ae15 149 RadioEvents.TxDone = OnTxDone;
Helmut64 0:c43b6919ae15 150 RadioEvents.RxDone = OnRxDone;
Helmut64 0:c43b6919ae15 151 RadioEvents.RxError = OnRxError;
Helmut64 0:c43b6919ae15 152 RadioEvents.TxTimeout = OnTxTimeout;
Helmut64 0:c43b6919ae15 153 RadioEvents.RxTimeout = OnRxTimeout;
Helmut64 0:c43b6919ae15 154 Radio->Init( &RadioEvents );
Helmut64 0:c43b6919ae15 155
Helmut64 0:c43b6919ae15 156 // verify the connection with the board
Helmut64 0:c43b6919ae15 157 while( Radio->Read( REG_VERSION ) == 0x00 )
Helmut64 0:c43b6919ae15 158 {
Helmut64 0:c43b6919ae15 159 dprintf("Radio could not be detected!");
Helmut64 0:c43b6919ae15 160 wait( 1 );
Helmut64 0:c43b6919ae15 161 }
Helmut64 0:c43b6919ae15 162
Helmut64 0:c43b6919ae15 163 switch(Radio->DetectBoardType()) {
Helmut64 0:c43b6919ae15 164 case SX1276MB1LAS:
Helmut64 0:c43b6919ae15 165 if (DEBUG_MESSAGE)
Helmut64 0:c43b6919ae15 166 dprintf(" > Board Type: SX1276MB1LAS <");
Helmut64 0:c43b6919ae15 167 break;
Helmut64 0:c43b6919ae15 168 case SX1276MB1MAS:
Helmut64 0:c43b6919ae15 169 if (DEBUG_MESSAGE)
Helmut64 0:c43b6919ae15 170 dprintf(" > Board Type: SX1276MB1LAS <");
Helmut64 0:c43b6919ae15 171 case MURATA_SX1276:
Helmut64 0:c43b6919ae15 172 if (DEBUG_MESSAGE)
Helmut64 0:c43b6919ae15 173 dprintf(" > Board Type: MURATA_SX1276_STM32L0 <");
Helmut64 0:c43b6919ae15 174 break;
Helmut64 0:c43b6919ae15 175 case RFM95_SX1276:
Helmut64 0:c43b6919ae15 176 if (DEBUG_MESSAGE)
Helmut64 0:c43b6919ae15 177 dprintf(" > HopeRF RFM95xx <");
Helmut64 0:c43b6919ae15 178 break;
Helmut64 0:c43b6919ae15 179 default:
Helmut64 0:c43b6919ae15 180 dprintf(" > Board Type: unknown <");
Helmut64 0:c43b6919ae15 181 }
Helmut64 0:c43b6919ae15 182
Helmut64 0:c43b6919ae15 183 Radio->SetChannel(RF_FREQUENCY );
Helmut64 0:c43b6919ae15 184
Helmut64 0:c43b6919ae15 185 #if USE_MODEM_LORA == 1
Helmut64 0:c43b6919ae15 186
Helmut64 0:c43b6919ae15 187 if (LORA_FHSS_ENABLED)
Helmut64 0:c43b6919ae15 188 dprintf(" > LORA FHSS Mode <");
Helmut64 0:c43b6919ae15 189 if (!LORA_FHSS_ENABLED)
Helmut64 0:c43b6919ae15 190 dprintf(" > LORA Mode <");
Helmut64 0:c43b6919ae15 191
Helmut64 0:c43b6919ae15 192 Radio->SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
Helmut64 0:c43b6919ae15 193 LORA_SPREADING_FACTOR, LORA_CODINGRATE,
Helmut64 0:c43b6919ae15 194 LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
Helmut64 0:c43b6919ae15 195 LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
Helmut64 0:c43b6919ae15 196 LORA_IQ_INVERSION_ON, 2000 );
Helmut64 0:c43b6919ae15 197
Helmut64 0:c43b6919ae15 198 Radio->SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
Helmut64 0:c43b6919ae15 199 LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
Helmut64 0:c43b6919ae15 200 LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON, 0,
Helmut64 0:c43b6919ae15 201 LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
Helmut64 0:c43b6919ae15 202 LORA_IQ_INVERSION_ON, true );
Helmut64 0:c43b6919ae15 203
Helmut64 0:c43b6919ae15 204 #elif USE_MODEM_FSK == 1
Helmut64 0:c43b6919ae15 205
Helmut64 0:c43b6919ae15 206 dprintf(" > FSK Mode <");
Helmut64 0:c43b6919ae15 207 Radio->SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0,
Helmut64 0:c43b6919ae15 208 FSK_DATARATE, 0,
Helmut64 0:c43b6919ae15 209 FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON,
Helmut64 0:c43b6919ae15 210 FSK_CRC_ENABLED, 0, 0, 0, 2000 );
Helmut64 0:c43b6919ae15 211
Helmut64 0:c43b6919ae15 212 Radio->SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE,
Helmut64 0:c43b6919ae15 213 0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH,
Helmut64 0:c43b6919ae15 214 0, FSK_FIX_LENGTH_PAYLOAD_ON, 0, FSK_CRC_ENABLED,
Helmut64 0:c43b6919ae15 215 0, 0, false, true );
Helmut64 0:c43b6919ae15 216
Helmut64 0:c43b6919ae15 217 #else
Helmut64 0:c43b6919ae15 218
Helmut64 0:c43b6919ae15 219 #error "Please define a modem in the compiler options."
Helmut64 0:c43b6919ae15 220
Helmut64 0:c43b6919ae15 221 #endif
Helmut64 0:c43b6919ae15 222
Helmut64 0:c43b6919ae15 223 if (DEBUG_MESSAGE)
Helmut64 0:c43b6919ae15 224 dprintf("Starting Ping-Pong loop");
Helmut64 0:c43b6919ae15 225
Helmut64 0:c43b6919ae15 226
Helmut64 0:c43b6919ae15 227 Radio->Rx( RX_TIMEOUT_VALUE );
Helmut64 0:c43b6919ae15 228
Helmut64 0:c43b6919ae15 229 while( 1 )
Helmut64 0:c43b6919ae15 230 {
Helmut64 0:c43b6919ae15 231 #ifdef TARGET_STM32L4
Helmut64 0:c43b6919ae15 232 WatchDogUpdate();
Helmut64 0:c43b6919ae15 233 #endif
Helmut64 0:c43b6919ae15 234
Helmut64 0:c43b6919ae15 235 switch( State )
Helmut64 0:c43b6919ae15 236 {
Helmut64 0:c43b6919ae15 237 case RX:
Helmut64 0:c43b6919ae15 238 *led3 = 0;
Helmut64 0:c43b6919ae15 239 if( isMaster == true )
Helmut64 0:c43b6919ae15 240 {
Helmut64 0:c43b6919ae15 241 if( BufferSize > 0 )
Helmut64 0:c43b6919ae15 242 {
Helmut64 0:c43b6919ae15 243 if( memcmp(Buffer, PongMsg, sizeof(PongMsg)) == 0 )
Helmut64 0:c43b6919ae15 244 {
Helmut64 0:c43b6919ae15 245 *led = !*led;
Helmut64 0:c43b6919ae15 246 dprintf( "...Pong" );
Helmut64 0:c43b6919ae15 247 // Send the next PING frame
Helmut64 0:c43b6919ae15 248 memcpy(Buffer, PingMsg, sizeof(PingMsg));
Helmut64 0:c43b6919ae15 249 // We fill the buffer with numbers for the payload
Helmut64 0:c43b6919ae15 250 for( i = sizeof(PingMsg); i < BufferSize; i++ )
Helmut64 0:c43b6919ae15 251 {
Helmut64 0:c43b6919ae15 252 Buffer[i] = i - sizeof(PingMsg);
Helmut64 0:c43b6919ae15 253 }
Helmut64 0:c43b6919ae15 254 wait_ms( 10 );
Helmut64 0:c43b6919ae15 255 Radio->Send( Buffer, BufferSize );
Helmut64 0:c43b6919ae15 256 }
Helmut64 0:c43b6919ae15 257 else if( memcmp(Buffer, PingMsg, sizeof(PingMsg)) == 0 )
Helmut64 0:c43b6919ae15 258 { // A master already exists then become a slave
Helmut64 0:c43b6919ae15 259 dprintf( "...Ping" );
Helmut64 0:c43b6919ae15 260 *led = !*led;
Helmut64 0:c43b6919ae15 261 isMaster = false;
Helmut64 0:c43b6919ae15 262 // Send the next PONG frame
Helmut64 0:c43b6919ae15 263 memcpy(Buffer, PongMsg, sizeof(PongMsg));
Helmut64 0:c43b6919ae15 264 // We fill the buffer with numbers for the payload
Helmut64 0:c43b6919ae15 265 for( i = sizeof(PongMsg); i < BufferSize; i++ )
Helmut64 0:c43b6919ae15 266 {
Helmut64 0:c43b6919ae15 267 Buffer[i] = i - sizeof(PongMsg);
Helmut64 0:c43b6919ae15 268 }
Helmut64 0:c43b6919ae15 269 wait_ms( 10 );
Helmut64 0:c43b6919ae15 270 Radio->Send( Buffer, BufferSize );
Helmut64 0:c43b6919ae15 271 }
Helmut64 0:c43b6919ae15 272 else // valid reception but neither a PING or a PONG message
Helmut64 0:c43b6919ae15 273 { // Set device as master ans start again
Helmut64 0:c43b6919ae15 274 isMaster = true;
Helmut64 0:c43b6919ae15 275 Radio->Rx( RX_TIMEOUT_VALUE );
Helmut64 0:c43b6919ae15 276 }
Helmut64 0:c43b6919ae15 277 }
Helmut64 0:c43b6919ae15 278 }
Helmut64 0:c43b6919ae15 279 else
Helmut64 0:c43b6919ae15 280 {
Helmut64 0:c43b6919ae15 281 if( BufferSize > 0 )
Helmut64 0:c43b6919ae15 282 {
Helmut64 0:c43b6919ae15 283 if( memcmp(Buffer, PingMsg, sizeof(PingMsg)) == 0 )
Helmut64 0:c43b6919ae15 284 {
Helmut64 0:c43b6919ae15 285 *led = !*led;
Helmut64 0:c43b6919ae15 286 dprintf( "...Ping" );
Helmut64 0:c43b6919ae15 287 // Send the reply to the PING string
Helmut64 0:c43b6919ae15 288 memcpy(Buffer, PongMsg, sizeof(PongMsg));
Helmut64 0:c43b6919ae15 289 // We fill the buffer with numbers for the payload
Helmut64 0:c43b6919ae15 290 for( i = sizeof(PongMsg); i < BufferSize; i++ )
Helmut64 0:c43b6919ae15 291 {
Helmut64 0:c43b6919ae15 292 Buffer[i] = i - sizeof(PongMsg);
Helmut64 0:c43b6919ae15 293 }
Helmut64 0:c43b6919ae15 294 wait_ms( 10 );
Helmut64 0:c43b6919ae15 295 Radio->Send( Buffer, BufferSize );
Helmut64 0:c43b6919ae15 296 }
Helmut64 0:c43b6919ae15 297 else // valid reception but not a PING as expected
Helmut64 0:c43b6919ae15 298 { // Set device as master and start again
Helmut64 0:c43b6919ae15 299 isMaster = true;
Helmut64 0:c43b6919ae15 300 Radio->Rx( RX_TIMEOUT_VALUE );
Helmut64 0:c43b6919ae15 301 }
Helmut64 0:c43b6919ae15 302 }
Helmut64 0:c43b6919ae15 303 }
Helmut64 0:c43b6919ae15 304 State = LOWPOWER;
Helmut64 0:c43b6919ae15 305 break;
Helmut64 0:c43b6919ae15 306 case TX:
Helmut64 0:c43b6919ae15 307 *led3 = 1;
Helmut64 0:c43b6919ae15 308 if( isMaster == true )
Helmut64 0:c43b6919ae15 309 {
Helmut64 0:c43b6919ae15 310 dprintf("Ping..." );
Helmut64 0:c43b6919ae15 311 }
Helmut64 0:c43b6919ae15 312 else
Helmut64 0:c43b6919ae15 313 {
Helmut64 0:c43b6919ae15 314 dprintf("Pong..." );
Helmut64 0:c43b6919ae15 315 }
Helmut64 0:c43b6919ae15 316 Radio->Rx( RX_TIMEOUT_VALUE );
Helmut64 0:c43b6919ae15 317 State = LOWPOWER;
Helmut64 0:c43b6919ae15 318 break;
Helmut64 0:c43b6919ae15 319 case RX_TIMEOUT:
Helmut64 0:c43b6919ae15 320 if( isMaster == true )
Helmut64 0:c43b6919ae15 321 {
Helmut64 0:c43b6919ae15 322 // Send the next PING frame
Helmut64 0:c43b6919ae15 323 memcpy(Buffer, PingMsg, sizeof(PingMsg));
Helmut64 0:c43b6919ae15 324 for( i = sizeof(PingMsg); i < BufferSize; i++ )
Helmut64 0:c43b6919ae15 325 {
Helmut64 0:c43b6919ae15 326 Buffer[i] = i - sizeof(PingMsg);
Helmut64 0:c43b6919ae15 327 }
Helmut64 0:c43b6919ae15 328 wait_ms( 10 );
Helmut64 0:c43b6919ae15 329 Radio->Send( Buffer, BufferSize );
Helmut64 0:c43b6919ae15 330 }
Helmut64 0:c43b6919ae15 331 else
Helmut64 0:c43b6919ae15 332 {
Helmut64 0:c43b6919ae15 333 Radio->Rx( RX_TIMEOUT_VALUE );
Helmut64 0:c43b6919ae15 334 }
Helmut64 0:c43b6919ae15 335 State = LOWPOWER;
Helmut64 0:c43b6919ae15 336 break;
Helmut64 0:c43b6919ae15 337 case RX_ERROR:
Helmut64 0:c43b6919ae15 338 // We have received a Packet with a CRC error, send reply as if packet was correct
Helmut64 0:c43b6919ae15 339 if( isMaster == true )
Helmut64 0:c43b6919ae15 340 {
Helmut64 0:c43b6919ae15 341 // Send the next PING frame
Helmut64 0:c43b6919ae15 342 memcpy(Buffer, PingMsg, sizeof(PingMsg));
Helmut64 0:c43b6919ae15 343 for( i = 4; i < BufferSize; i++ )
Helmut64 0:c43b6919ae15 344 {
Helmut64 0:c43b6919ae15 345 Buffer[i] = i - 4;
Helmut64 0:c43b6919ae15 346 }
Helmut64 0:c43b6919ae15 347 wait_ms( 10 );
Helmut64 0:c43b6919ae15 348 Radio->Send( Buffer, BufferSize );
Helmut64 0:c43b6919ae15 349 }
Helmut64 0:c43b6919ae15 350 else
Helmut64 0:c43b6919ae15 351 {
Helmut64 0:c43b6919ae15 352 // Send the next PONG frame
Helmut64 0:c43b6919ae15 353 memcpy(Buffer, PongMsg, sizeof(PongMsg));
Helmut64 0:c43b6919ae15 354 for( i = sizeof(PongMsg); i < BufferSize; i++ )
Helmut64 0:c43b6919ae15 355 {
Helmut64 0:c43b6919ae15 356 Buffer[i] = i - sizeof(PongMsg);
Helmut64 0:c43b6919ae15 357 }
Helmut64 0:c43b6919ae15 358 wait_ms( 10 );
Helmut64 0:c43b6919ae15 359 Radio->Send( Buffer, BufferSize );
Helmut64 0:c43b6919ae15 360 }
Helmut64 0:c43b6919ae15 361 State = LOWPOWER;
Helmut64 0:c43b6919ae15 362 break;
Helmut64 0:c43b6919ae15 363 case TX_TIMEOUT:
Helmut64 0:c43b6919ae15 364 Radio->Rx( RX_TIMEOUT_VALUE );
Helmut64 0:c43b6919ae15 365 State = LOWPOWER;
Helmut64 0:c43b6919ae15 366 break;
Helmut64 0:c43b6919ae15 367 case LOWPOWER:
Helmut64 1:65d602e2d746 368 sleep();
Helmut64 0:c43b6919ae15 369 break;
Helmut64 0:c43b6919ae15 370 default:
Helmut64 0:c43b6919ae15 371 State = LOWPOWER;
Helmut64 0:c43b6919ae15 372 break;
Helmut64 0:c43b6919ae15 373 }
Helmut64 0:c43b6919ae15 374 }
Helmut64 0:c43b6919ae15 375 }
Helmut64 0:c43b6919ae15 376
Helmut64 0:c43b6919ae15 377 void OnTxDone( void )
Helmut64 0:c43b6919ae15 378 {
Helmut64 0:c43b6919ae15 379 Radio->Sleep( );
Helmut64 0:c43b6919ae15 380 State = TX;
Helmut64 0:c43b6919ae15 381 if (DEBUG_MESSAGE)
Helmut64 0:c43b6919ae15 382 dprintf("> OnTxDone");
Helmut64 0:c43b6919ae15 383 }
Helmut64 0:c43b6919ae15 384
Helmut64 0:c43b6919ae15 385 void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr)
Helmut64 0:c43b6919ae15 386 {
Helmut64 0:c43b6919ae15 387 Radio->Sleep( );
Helmut64 0:c43b6919ae15 388 BufferSize = size;
Helmut64 0:c43b6919ae15 389 memcpy( Buffer, payload, BufferSize );
Helmut64 0:c43b6919ae15 390 State = RX;
Helmut64 0:c43b6919ae15 391 if (DEBUG_MESSAGE)
Helmut64 0:c43b6919ae15 392 dprintf("> OnRxDone: RssiValue=%d dBm, SnrValue=%d", rssi, snr);
Helmut64 0:c43b6919ae15 393 dump("Data:", payload, size);
Helmut64 0:c43b6919ae15 394 }
Helmut64 0:c43b6919ae15 395
Helmut64 0:c43b6919ae15 396 void OnTxTimeout( void )
Helmut64 0:c43b6919ae15 397 {
Helmut64 0:c43b6919ae15 398 *led3 = 0;
Helmut64 0:c43b6919ae15 399 Radio->Sleep( );
Helmut64 0:c43b6919ae15 400 State = TX_TIMEOUT;
Helmut64 0:c43b6919ae15 401 if(DEBUG_MESSAGE)
Helmut64 0:c43b6919ae15 402 dprintf("> OnTxTimeout");
Helmut64 0:c43b6919ae15 403 }
Helmut64 0:c43b6919ae15 404
Helmut64 0:c43b6919ae15 405 void OnRxTimeout( void )
Helmut64 0:c43b6919ae15 406 {
Helmut64 0:c43b6919ae15 407 *led3 = 0;
Helmut64 0:c43b6919ae15 408 Radio->Sleep( );
Helmut64 0:c43b6919ae15 409 Buffer[BufferSize-1] = 0;
Helmut64 0:c43b6919ae15 410 State = RX_TIMEOUT;
Helmut64 0:c43b6919ae15 411 if (DEBUG_MESSAGE)
Helmut64 0:c43b6919ae15 412 dprintf("> OnRxTimeout");
Helmut64 0:c43b6919ae15 413 }
Helmut64 0:c43b6919ae15 414
Helmut64 0:c43b6919ae15 415 void OnRxError( void )
Helmut64 0:c43b6919ae15 416 {
Helmut64 0:c43b6919ae15 417 Radio->Sleep( );
Helmut64 0:c43b6919ae15 418 State = RX_ERROR;
Helmut64 0:c43b6919ae15 419 if (DEBUG_MESSAGE)
Helmut64 0:c43b6919ae15 420 dprintf("> OnRxError");
Helmut64 0:c43b6919ae15 421 }
Helmut64 0:c43b6919ae15 422
Helmut64 0:c43b6919ae15 423 #endif