wayne roberts / Mbed OS mbed-example-lorawan-senet

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main.cpp@61:9a84b5964019, 2020-05-04 (annotated)

Committer:
dudmuck
Date:
Mon May 04 03:05:28 2020 +0000
Revision:
61:9a84b5964019
Parent:
56:39847849d219 
add cayenne option

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:7037ed05f54f 1 /**
mbed_official 0:7037ed05f54f 2 * Copyright (c) 2017, Arm Limited and affiliates.
mbed_official 0:7037ed05f54f 3 * SPDX-License-Identifier: Apache-2.0
mbed_official 0:7037ed05f54f 4 *
mbed_official 0:7037ed05f54f 5 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 0:7037ed05f54f 6 * you may not use this file except in compliance with the License.
mbed_official 0:7037ed05f54f 7 * You may obtain a copy of the License at
mbed_official 0:7037ed05f54f 8 *
mbed_official 0:7037ed05f54f 9 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 0:7037ed05f54f 10 *
mbed_official 0:7037ed05f54f 11 * Unless required by applicable law or agreed to in writing, software
mbed_official 0:7037ed05f54f 12 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 0:7037ed05f54f 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 0:7037ed05f54f 14 * See the License for the specific language governing permissions and
mbed_official 0:7037ed05f54f 15 * limitations under the License.
mbed_official 0:7037ed05f54f 16 */
dudmuck 61:9a84b5964019 17 #ifndef MBED_CONF_APP_CAYENNE
dudmuck 61:9a84b5964019 18
mbed_official 0:7037ed05f54f 19 #include <stdio.h>
mbed_official 3:8c7198d1a2a1 20
mbed_official 0:7037ed05f54f 21 #include "lorawan/LoRaWANInterface.h"
mbed_official 0:7037ed05f54f 22 #include "lorawan/system/lorawan_data_structures.h"
mbed_official 0:7037ed05f54f 23 #include "events/EventQueue.h"
mbed_official 0:7037ed05f54f 24
mbed_official 0:7037ed05f54f 25 // Application helpers
mbed_official 0:7037ed05f54f 26 #include "DummySensor.h"
mbed_official 0:7037ed05f54f 27 #include "trace_helper.h"
mbed_official 0:7037ed05f54f 28 #include "lora_radio_helper.h"
mbed_official 0:7037ed05f54f 29
mbed_official 0:7037ed05f54f 30 using namespace events;
mbed_official 0:7037ed05f54f 31
mbed_official 12:5015dfead3f2 32 // Max payload size can be LORAMAC_PHY_MAXPAYLOAD.
mbed_official 12:5015dfead3f2 33 // This example only communicates with much shorter messages (<30 bytes).
mbed_official 12:5015dfead3f2 34 // If longer messages are used, these buffers must be changed accordingly.
mbed_official 12:5015dfead3f2 35 uint8_t tx_buffer[30];
mbed_official 12:5015dfead3f2 36 uint8_t rx_buffer[30];
mbed_official 0:7037ed05f54f 37
mbed_official 0:7037ed05f54f 38 /*
mbed_official 0:7037ed05f54f 39 * Sets up an application dependent transmission timer in ms. Used only when Duty Cycling is off for testing
mbed_official 0:7037ed05f54f 40 */
mbed_official 0:7037ed05f54f 41 #define TX_TIMER 10000
mbed_official 0:7037ed05f54f 42
mbed_official 0:7037ed05f54f 43 /**
mbed_official 0:7037ed05f54f 44 * Maximum number of events for the event queue.
mbed_official 12:5015dfead3f2 45 * 10 is the safe number for the stack events, however, if application
mbed_official 0:7037ed05f54f 46 * also uses the queue for whatever purposes, this number should be increased.
mbed_official 0:7037ed05f54f 47 */
mbed_official 12:5015dfead3f2 48 #define MAX_NUMBER_OF_EVENTS 10
mbed_official 0:7037ed05f54f 49
mbed_official 0:7037ed05f54f 50 /**
mbed_official 0:7037ed05f54f 51 * Maximum number of retries for CONFIRMED messages before giving up
mbed_official 0:7037ed05f54f 52 */
mbed_official 0:7037ed05f54f 53 #define CONFIRMED_MSG_RETRY_COUNTER 3
mbed_official 0:7037ed05f54f 54
mbed_official 0:7037ed05f54f 55 /**
mbed_official 0:7037ed05f54f 56 * Dummy pin for dummy sensor
mbed_official 0:7037ed05f54f 57 */
mbed_official 0:7037ed05f54f 58 #define PC_9 0
mbed_official 0:7037ed05f54f 59
mbed_official 0:7037ed05f54f 60 /**
mbed_official 0:7037ed05f54f 61 * Dummy sensor class object
mbed_official 0:7037ed05f54f 62 */
mbed_official 0:7037ed05f54f 63 DS1820 ds1820(PC_9);
mbed_official 0:7037ed05f54f 64
mbed_official 0:7037ed05f54f 65 /**
mbed_official 0:7037ed05f54f 66 * This event queue is the global event queue for both the
mbed_official 0:7037ed05f54f 67 * application and stack. To conserve memory, the stack is designed to run
mbed_official 0:7037ed05f54f 68 * in the same thread as the application and the application is responsible for
mbed_official 0:7037ed05f54f 69 * providing an event queue to the stack that will be used for ISR deferment as
mbed_official 0:7037ed05f54f 70 * well as application information event queuing.
mbed_official 0:7037ed05f54f 71 */
mbed_official 46:a124538e2891 72 static EventQueue ev_queue(MAX_NUMBER_OF_EVENTS *EVENTS_EVENT_SIZE);
mbed_official 0:7037ed05f54f 73
mbed_official 0:7037ed05f54f 74 /**
mbed_official 0:7037ed05f54f 75 * Event handler.
mbed_official 0:7037ed05f54f 76 *
mbed_official 0:7037ed05f54f 77 * This will be passed to the LoRaWAN stack to queue events for the
mbed_official 0:7037ed05f54f 78 * application which in turn drive the application.
mbed_official 0:7037ed05f54f 79 */
mbed_official 0:7037ed05f54f 80 static void lora_event_handler(lorawan_event_t event);
mbed_official 0:7037ed05f54f 81
mbed_official 0:7037ed05f54f 82 /**
mbed_official 46:a124538e2891 83 * Constructing Mbed LoRaWANInterface and passing it the radio object from lora_radio_helper.
mbed_official 0:7037ed05f54f 84 */
mbed_official 2:dc95ac6d6d4e 85 static LoRaWANInterface lorawan(radio);
mbed_official 0:7037ed05f54f 86
mbed_official 0:7037ed05f54f 87 /**
mbed_official 0:7037ed05f54f 88 * Application specific callbacks
mbed_official 0:7037ed05f54f 89 */
mbed_official 0:7037ed05f54f 90 static lorawan_app_callbacks_t callbacks;
mbed_official 0:7037ed05f54f 91
mbed_official 0:7037ed05f54f 92 /**
mbed_official 0:7037ed05f54f 93 * Entry point for application
mbed_official 0:7037ed05f54f 94 */
mbed_official 46:a124538e2891 95 int main(void)
mbed_official 0:7037ed05f54f 96 {
mbed_official 0:7037ed05f54f 97 // setup tracing
mbed_official 0:7037ed05f54f 98 setup_trace();
mbed_official 0:7037ed05f54f 99
mbed_official 0:7037ed05f54f 100 // stores the status of a call to LoRaWAN protocol
mbed_official 0:7037ed05f54f 101 lorawan_status_t retcode;
mbed_official 0:7037ed05f54f 102
mbed_official 0:7037ed05f54f 103 // Initialize LoRaWAN stack
mbed_official 2:dc95ac6d6d4e 104 if (lorawan.initialize(&ev_queue) != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 105 printf("\r\n LoRa initialization failed! \r\n");
mbed_official 0:7037ed05f54f 106 return -1;
mbed_official 0:7037ed05f54f 107 }
mbed_official 0:7037ed05f54f 108
mbed_official 0:7037ed05f54f 109 printf("\r\n Mbed LoRaWANStack initialized \r\n");
mbed_official 0:7037ed05f54f 110
mbed_official 0:7037ed05f54f 111 // prepare application callbacks
mbed_official 0:7037ed05f54f 112 callbacks.events = mbed::callback(lora_event_handler);
mbed_official 2:dc95ac6d6d4e 113 lorawan.add_app_callbacks(&callbacks);
mbed_official 0:7037ed05f54f 114
mbed_official 0:7037ed05f54f 115 // Set number of retries in case of CONFIRMED messages
mbed_official 2:dc95ac6d6d4e 116 if (lorawan.set_confirmed_msg_retries(CONFIRMED_MSG_RETRY_COUNTER)
mbed_official 46:a124538e2891 117 != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 118 printf("\r\n set_confirmed_msg_retries failed! \r\n\r\n");
mbed_official 0:7037ed05f54f 119 return -1;
mbed_official 0:7037ed05f54f 120 }
mbed_official 0:7037ed05f54f 121
mbed_official 0:7037ed05f54f 122 printf("\r\n CONFIRMED message retries : %d \r\n",
mbed_official 0:7037ed05f54f 123 CONFIRMED_MSG_RETRY_COUNTER);
mbed_official 0:7037ed05f54f 124
mbed_official 0:7037ed05f54f 125 // Enable adaptive data rate
mbed_official 2:dc95ac6d6d4e 126 if (lorawan.enable_adaptive_datarate() != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 127 printf("\r\n enable_adaptive_datarate failed! \r\n");
mbed_official 0:7037ed05f54f 128 return -1;
mbed_official 0:7037ed05f54f 129 }
mbed_official 0:7037ed05f54f 130
mbed_official 0:7037ed05f54f 131 printf("\r\n Adaptive data rate (ADR) - Enabled \r\n");
mbed_official 0:7037ed05f54f 132
mbed_official 2:dc95ac6d6d4e 133 retcode = lorawan.connect();
mbed_official 0:7037ed05f54f 134
mbed_official 0:7037ed05f54f 135 if (retcode == LORAWAN_STATUS_OK ||
mbed_official 46:a124538e2891 136 retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) {
mbed_official 0:7037ed05f54f 137 } else {
mbed_official 0:7037ed05f54f 138 printf("\r\n Connection error, code = %d \r\n", retcode);
mbed_official 0:7037ed05f54f 139 return -1;
mbed_official 0:7037ed05f54f 140 }
mbed_official 0:7037ed05f54f 141
mbed_official 0:7037ed05f54f 142 printf("\r\n Connection - In Progress ...\r\n");
mbed_official 0:7037ed05f54f 143
mbed_official 0:7037ed05f54f 144 // make your event queue dispatching events forever
mbed_official 0:7037ed05f54f 145 ev_queue.dispatch_forever();
mbed_official 3:8c7198d1a2a1 146
mbed_official 3:8c7198d1a2a1 147 return 0;
mbed_official 0:7037ed05f54f 148 }
mbed_official 0:7037ed05f54f 149
mbed_official 0:7037ed05f54f 150 /**
mbed_official 0:7037ed05f54f 151 * Sends a message to the Network Server
mbed_official 0:7037ed05f54f 152 */
mbed_official 0:7037ed05f54f 153 static void send_message()
mbed_official 0:7037ed05f54f 154 {
mbed_official 0:7037ed05f54f 155 uint16_t packet_len;
mbed_official 0:7037ed05f54f 156 int16_t retcode;
mbed_official 56:39847849d219 157 int32_t sensor_value;
mbed_official 0:7037ed05f54f 158
mbed_official 0:7037ed05f54f 159 if (ds1820.begin()) {
mbed_official 0:7037ed05f54f 160 ds1820.startConversion();
mbed_official 0:7037ed05f54f 161 sensor_value = ds1820.read();
mbed_official 56:39847849d219 162 printf("\r\n Dummy Sensor Value = %d \r\n", sensor_value);
mbed_official 0:7037ed05f54f 163 ds1820.startConversion();
mbed_official 0:7037ed05f54f 164 } else {
mbed_official 0:7037ed05f54f 165 printf("\r\n No sensor found \r\n");
mbed_official 0:7037ed05f54f 166 return;
mbed_official 0:7037ed05f54f 167 }
mbed_official 0:7037ed05f54f 168
mbed_official 56:39847849d219 169 packet_len = sprintf((char *) tx_buffer, "Dummy Sensor Value is %d",
mbed_official 46:a124538e2891 170 sensor_value);
mbed_official 0:7037ed05f54f 171
mbed_official 2:dc95ac6d6d4e 172 retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, tx_buffer, packet_len,
mbed_official 47:b6d132f1079f 173 MSG_UNCONFIRMED_FLAG);
mbed_official 0:7037ed05f54f 174
mbed_official 0:7037ed05f54f 175 if (retcode < 0) {
mbed_official 0:7037ed05f54f 176 retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("send - WOULD BLOCK\r\n")
mbed_official 46:a124538e2891 177 : printf("\r\n send() - Error code %d \r\n", retcode);
mbed_official 26:f07f5febf97f 178
mbed_official 26:f07f5febf97f 179 if (retcode == LORAWAN_STATUS_WOULD_BLOCK) {
mbed_official 26:f07f5febf97f 180 //retry in 3 seconds
mbed_official 26:f07f5febf97f 181 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 182 ev_queue.call_in(3000, send_message);
mbed_official 26:f07f5febf97f 183 }
mbed_official 26:f07f5febf97f 184 }
mbed_official 0:7037ed05f54f 185 return;
mbed_official 0:7037ed05f54f 186 }
mbed_official 0:7037ed05f54f 187
mbed_official 0:7037ed05f54f 188 printf("\r\n %d bytes scheduled for transmission \r\n", retcode);
mbed_official 12:5015dfead3f2 189 memset(tx_buffer, 0, sizeof(tx_buffer));
mbed_official 0:7037ed05f54f 190 }
mbed_official 0:7037ed05f54f 191
mbed_official 0:7037ed05f54f 192 /**
mbed_official 0:7037ed05f54f 193 * Receive a message from the Network Server
mbed_official 0:7037ed05f54f 194 */
mbed_official 0:7037ed05f54f 195 static void receive_message()
mbed_official 0:7037ed05f54f 196 {
mbed_official 47:b6d132f1079f 197 uint8_t port;
mbed_official 47:b6d132f1079f 198 int flags;
mbed_official 47:b6d132f1079f 199 int16_t retcode = lorawan.receive(rx_buffer, sizeof(rx_buffer), port, flags);
mbed_official 0:7037ed05f54f 200
mbed_official 0:7037ed05f54f 201 if (retcode < 0) {
mbed_official 0:7037ed05f54f 202 printf("\r\n receive() - Error code %d \r\n", retcode);
mbed_official 0:7037ed05f54f 203 return;
mbed_official 0:7037ed05f54f 204 }
mbed_official 0:7037ed05f54f 205
mbed_official 47:b6d132f1079f 206 printf(" RX Data on port %u (%d bytes): ", port, retcode);
mbed_official 0:7037ed05f54f 207 for (uint8_t i = 0; i < retcode; i++) {
mbed_official 47:b6d132f1079f 208 printf("%02x ", rx_buffer[i]);
mbed_official 0:7037ed05f54f 209 }
mbed_official 47:b6d132f1079f 210 printf("\r\n");
mbed_official 47:b6d132f1079f 211
mbed_official 12:5015dfead3f2 212 memset(rx_buffer, 0, sizeof(rx_buffer));
mbed_official 0:7037ed05f54f 213 }
mbed_official 0:7037ed05f54f 214
mbed_official 0:7037ed05f54f 215 /**
mbed_official 0:7037ed05f54f 216 * Event handler
mbed_official 0:7037ed05f54f 217 */
mbed_official 0:7037ed05f54f 218 static void lora_event_handler(lorawan_event_t event)
mbed_official 0:7037ed05f54f 219 {
mbed_official 0:7037ed05f54f 220 switch (event) {
mbed_official 0:7037ed05f54f 221 case CONNECTED:
mbed_official 0:7037ed05f54f 222 printf("\r\n Connection - Successful \r\n");
mbed_official 0:7037ed05f54f 223 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 224 send_message();
mbed_official 0:7037ed05f54f 225 } else {
mbed_official 0:7037ed05f54f 226 ev_queue.call_every(TX_TIMER, send_message);
mbed_official 0:7037ed05f54f 227 }
mbed_official 0:7037ed05f54f 228
mbed_official 0:7037ed05f54f 229 break;
mbed_official 0:7037ed05f54f 230 case DISCONNECTED:
mbed_official 0:7037ed05f54f 231 ev_queue.break_dispatch();
mbed_official 0:7037ed05f54f 232 printf("\r\n Disconnected Successfully \r\n");
mbed_official 0:7037ed05f54f 233 break;
mbed_official 0:7037ed05f54f 234 case TX_DONE:
mbed_official 0:7037ed05f54f 235 printf("\r\n Message Sent to Network Server \r\n");
mbed_official 0:7037ed05f54f 236 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 237 send_message();
mbed_official 0:7037ed05f54f 238 }
mbed_official 0:7037ed05f54f 239 break;
mbed_official 0:7037ed05f54f 240 case TX_TIMEOUT:
mbed_official 0:7037ed05f54f 241 case TX_ERROR:
mbed_official 0:7037ed05f54f 242 case TX_CRYPTO_ERROR:
mbed_official 0:7037ed05f54f 243 case TX_SCHEDULING_ERROR:
mbed_official 0:7037ed05f54f 244 printf("\r\n Transmission Error - EventCode = %d \r\n", event);
mbed_official 0:7037ed05f54f 245 // try again
mbed_official 0:7037ed05f54f 246 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 247 send_message();
mbed_official 0:7037ed05f54f 248 }
mbed_official 0:7037ed05f54f 249 break;
mbed_official 0:7037ed05f54f 250 case RX_DONE:
mbed_official 0:7037ed05f54f 251 printf("\r\n Received message from Network Server \r\n");
mbed_official 0:7037ed05f54f 252 receive_message();
mbed_official 0:7037ed05f54f 253 break;
mbed_official 0:7037ed05f54f 254 case RX_TIMEOUT:
mbed_official 0:7037ed05f54f 255 case RX_ERROR:
mbed_official 0:7037ed05f54f 256 printf("\r\n Error in reception - Code = %d \r\n", event);
mbed_official 0:7037ed05f54f 257 break;
mbed_official 0:7037ed05f54f 258 case JOIN_FAILURE:
mbed_official 0:7037ed05f54f 259 printf("\r\n OTAA Failed - Check Keys \r\n");
mbed_official 0:7037ed05f54f 260 break;
mbed_official 26:f07f5febf97f 261 case UPLINK_REQUIRED:
mbed_official 26:f07f5febf97f 262 printf("\r\n Uplink required by NS \r\n");
mbed_official 26:f07f5febf97f 263 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 264 send_message();
mbed_official 26:f07f5febf97f 265 }
mbed_official 26:f07f5febf97f 266 break;
mbed_official 0:7037ed05f54f 267 default:
mbed_official 0:7037ed05f54f 268 MBED_ASSERT("Unknown Event");
mbed_official 0:7037ed05f54f 269 }
mbed_official 0:7037ed05f54f 270 }
mbed_official 0:7037ed05f54f 271
mbed_official 0:7037ed05f54f 272 // EOF
dudmuck 61:9a84b5964019 273 #endif /* MBED_CONF_APP_CAYENNE */