HABTeam / Mbed OS mbed-os-example-lorawan

issue with send_message

Dependencies:   FXOS8700Q

main.cpp@46:b5c571a9a5f5, 2019-03-20 (annotated)

Committer:
zer044
Date:
Wed Mar 20 20:56:02 2019 +0000
Revision:
46:b5c571a9a5f5
Parent:
45:fc90043ed811 
Changed how the output string is received then did some casting to get data out.

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 */
mbed_official 0:7037ed05f54f 17 #include <stdio.h>
mbed_official 3:8c7198d1a2a1 18
mbed_official 0:7037ed05f54f 19 #include "lorawan/LoRaWANInterface.h"
mbed_official 0:7037ed05f54f 20 #include "lorawan/system/lorawan_data_structures.h"
mbed_official 0:7037ed05f54f 21 #include "events/EventQueue.h"
mbed_official 0:7037ed05f54f 22 // Application helpers
mbed_official 0:7037ed05f54f 23 #include "DummySensor.h"
mbed_official 0:7037ed05f54f 24 #include "trace_helper.h"
mbed_official 0:7037ed05f54f 25 #include "lora_radio_helper.h"
oliviab 45:fc90043ed811 26 #include "SensorData.h"
oliviab 45:fc90043ed811 27
oliviab 45:fc90043ed811 28
oliviab 45:fc90043ed811 29 #include "mbed.h"
oliviab 45:fc90043ed811 30
oliviab 45:fc90043ed811 31
oliviab 45:fc90043ed811 32
mbed_official 0:7037ed05f54f 33
mbed_official 0:7037ed05f54f 34 using namespace events;
mbed_official 0:7037ed05f54f 35
mbed_official 12:5015dfead3f2 36 // Max payload size can be LORAMAC_PHY_MAXPAYLOAD.
mbed_official 12:5015dfead3f2 37 // This example only communicates with much shorter messages (<30 bytes).
mbed_official 12:5015dfead3f2 38 // If longer messages are used, these buffers must be changed accordingly.
oliviab 45:fc90043ed811 39 uint8_t tx_buffer[50];
oliviab 45:fc90043ed811 40 uint8_t rx_buffer[50];
mbed_official 0:7037ed05f54f 41
mbed_official 0:7037ed05f54f 42 /*
mbed_official 0:7037ed05f54f 43 * Sets up an application dependent transmission timer in ms. Used only when Duty Cycling is off for testing
mbed_official 0:7037ed05f54f 44 */
mbed_official 0:7037ed05f54f 45 #define TX_TIMER 10000
mbed_official 0:7037ed05f54f 46
mbed_official 0:7037ed05f54f 47 /**
mbed_official 0:7037ed05f54f 48 * Maximum number of events for the event queue.
mbed_official 12:5015dfead3f2 49 * 10 is the safe number for the stack events, however, if application
mbed_official 0:7037ed05f54f 50 * also uses the queue for whatever purposes, this number should be increased.
mbed_official 0:7037ed05f54f 51 */
mbed_official 12:5015dfead3f2 52 #define MAX_NUMBER_OF_EVENTS 10
mbed_official 0:7037ed05f54f 53
mbed_official 0:7037ed05f54f 54 /**
mbed_official 0:7037ed05f54f 55 * Maximum number of retries for CONFIRMED messages before giving up
mbed_official 0:7037ed05f54f 56 */
mbed_official 0:7037ed05f54f 57 #define CONFIRMED_MSG_RETRY_COUNTER 3
mbed_official 0:7037ed05f54f 58
mbed_official 0:7037ed05f54f 59 /**
mbed_official 0:7037ed05f54f 60 * Dummy pin for dummy sensor
mbed_official 0:7037ed05f54f 61 */
mbed_official 0:7037ed05f54f 62 #define PC_9 0
mbed_official 0:7037ed05f54f 63
oliviab 45:fc90043ed811 64
mbed_official 0:7037ed05f54f 65 /**
mbed_official 0:7037ed05f54f 66 * Dummy sensor class object
mbed_official 0:7037ed05f54f 67 */
mbed_official 0:7037ed05f54f 68 DS1820 ds1820(PC_9);
mbed_official 0:7037ed05f54f 69
mbed_official 0:7037ed05f54f 70 /**
mbed_official 0:7037ed05f54f 71 * This event queue is the global event queue for both the
mbed_official 0:7037ed05f54f 72 * application and stack. To conserve memory, the stack is designed to run
mbed_official 0:7037ed05f54f 73 * in the same thread as the application and the application is responsible for
mbed_official 0:7037ed05f54f 74 * providing an event queue to the stack that will be used for ISR deferment as
mbed_official 0:7037ed05f54f 75 * well as application information event queuing.
mbed_official 0:7037ed05f54f 76 */
mbed_official 0:7037ed05f54f 77 static EventQueue ev_queue(MAX_NUMBER_OF_EVENTS * EVENTS_EVENT_SIZE);
mbed_official 0:7037ed05f54f 78
mbed_official 0:7037ed05f54f 79 /**
mbed_official 0:7037ed05f54f 80 * Event handler.
mbed_official 0:7037ed05f54f 81 *
mbed_official 0:7037ed05f54f 82 * This will be passed to the LoRaWAN stack to queue events for the
mbed_official 0:7037ed05f54f 83 * application which in turn drive the application.
mbed_official 0:7037ed05f54f 84 */
mbed_official 0:7037ed05f54f 85 static void lora_event_handler(lorawan_event_t event);
mbed_official 0:7037ed05f54f 86
mbed_official 0:7037ed05f54f 87 /**
mbed_official 2:dc95ac6d6d4e 88 * Constructing Mbed LoRaWANInterface and passing it down the radio object.
mbed_official 0:7037ed05f54f 89 */
mbed_official 2:dc95ac6d6d4e 90 static LoRaWANInterface lorawan(radio);
mbed_official 0:7037ed05f54f 91
mbed_official 0:7037ed05f54f 92 /**
mbed_official 0:7037ed05f54f 93 * Application specific callbacks
mbed_official 0:7037ed05f54f 94 */
mbed_official 0:7037ed05f54f 95 static lorawan_app_callbacks_t callbacks;
oliviab 45:fc90043ed811 96
oliviab 45:fc90043ed811 97
oliviab 45:fc90043ed811 98
oliviab 45:fc90043ed811 99 SensorData mySensor;
mbed_official 0:7037ed05f54f 100
mbed_official 0:7037ed05f54f 101 /**
mbed_official 0:7037ed05f54f 102 * Entry point for application
mbed_official 0:7037ed05f54f 103 */
mbed_official 0:7037ed05f54f 104 int main (void)
mbed_official 0:7037ed05f54f 105 {
oliviab 45:fc90043ed811 106
oliviab 45:fc90043ed811 107
oliviab 45:fc90043ed811 108 //printf("Hello World !\n");
oliviab 45:fc90043ed811 109 mySensor.initialise();
oliviab 45:fc90043ed811 110
mbed_official 0:7037ed05f54f 111 // setup tracing
mbed_official 0:7037ed05f54f 112 setup_trace();
mbed_official 0:7037ed05f54f 113
mbed_official 0:7037ed05f54f 114 // stores the status of a call to LoRaWAN protocol
mbed_official 0:7037ed05f54f 115 lorawan_status_t retcode;
mbed_official 0:7037ed05f54f 116
mbed_official 0:7037ed05f54f 117 // Initialize LoRaWAN stack
mbed_official 2:dc95ac6d6d4e 118 if (lorawan.initialize(&ev_queue) != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 119 printf("\r\n LoRa initialization failed! \r\n");
mbed_official 0:7037ed05f54f 120 return -1;
mbed_official 0:7037ed05f54f 121 }
mbed_official 0:7037ed05f54f 122
mbed_official 0:7037ed05f54f 123 printf("\r\n Mbed LoRaWANStack initialized \r\n");
mbed_official 0:7037ed05f54f 124
mbed_official 0:7037ed05f54f 125 // prepare application callbacks
mbed_official 0:7037ed05f54f 126 callbacks.events = mbed::callback(lora_event_handler);
mbed_official 2:dc95ac6d6d4e 127 lorawan.add_app_callbacks(&callbacks);
mbed_official 0:7037ed05f54f 128
mbed_official 0:7037ed05f54f 129 // Set number of retries in case of CONFIRMED messages
mbed_official 2:dc95ac6d6d4e 130 if (lorawan.set_confirmed_msg_retries(CONFIRMED_MSG_RETRY_COUNTER)
mbed_official 0:7037ed05f54f 131 != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 132 printf("\r\n set_confirmed_msg_retries failed! \r\n\r\n");
mbed_official 0:7037ed05f54f 133 return -1;
mbed_official 0:7037ed05f54f 134 }
mbed_official 0:7037ed05f54f 135
mbed_official 0:7037ed05f54f 136 printf("\r\n CONFIRMED message retries : %d \r\n",
mbed_official 0:7037ed05f54f 137 CONFIRMED_MSG_RETRY_COUNTER);
mbed_official 0:7037ed05f54f 138
mbed_official 0:7037ed05f54f 139 // Enable adaptive data rate
mbed_official 2:dc95ac6d6d4e 140 if (lorawan.enable_adaptive_datarate() != LORAWAN_STATUS_OK) {
mbed_official 0:7037ed05f54f 141 printf("\r\n enable_adaptive_datarate failed! \r\n");
mbed_official 0:7037ed05f54f 142 return -1;
mbed_official 0:7037ed05f54f 143 }
mbed_official 0:7037ed05f54f 144
mbed_official 0:7037ed05f54f 145 printf("\r\n Adaptive data rate (ADR) - Enabled \r\n");
mbed_official 0:7037ed05f54f 146
mbed_official 2:dc95ac6d6d4e 147 retcode = lorawan.connect();
mbed_official 0:7037ed05f54f 148
mbed_official 0:7037ed05f54f 149 if (retcode == LORAWAN_STATUS_OK ||
mbed_official 0:7037ed05f54f 150 retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) {
oliviab 45:fc90043ed811 151 printf("\r\n LORAWAN STATUS OK/in progress");
mbed_official 0:7037ed05f54f 152 } else {
mbed_official 0:7037ed05f54f 153 printf("\r\n Connection error, code = %d \r\n", retcode);
mbed_official 0:7037ed05f54f 154 return -1;
mbed_official 0:7037ed05f54f 155 }
mbed_official 0:7037ed05f54f 156
mbed_official 0:7037ed05f54f 157 printf("\r\n Connection - In Progress ...\r\n");
mbed_official 0:7037ed05f54f 158
mbed_official 0:7037ed05f54f 159 // make your event queue dispatching events forever
mbed_official 0:7037ed05f54f 160 ev_queue.dispatch_forever();
oliviab 45:fc90043ed811 161 printf("\r\n passed forever");
mbed_official 3:8c7198d1a2a1 162 return 0;
mbed_official 0:7037ed05f54f 163 }
mbed_official 0:7037ed05f54f 164
oliviab 45:fc90043ed811 165
oliviab 45:fc90043ed811 166
oliviab 45:fc90043ed811 167
oliviab 45:fc90043ed811 168
oliviab 45:fc90043ed811 169 #define LORAWAN_APP_PORT 15
mbed_official 0:7037ed05f54f 170 /**
mbed_official 0:7037ed05f54f 171 * Sends a message to the Network Server
mbed_official 0:7037ed05f54f 172 */
mbed_official 0:7037ed05f54f 173 static void send_message()
mbed_official 0:7037ed05f54f 174 {
mbed_official 0:7037ed05f54f 175 uint16_t packet_len;
mbed_official 0:7037ed05f54f 176 int16_t retcode;
oliviab 45:fc90043ed811 177 //float sensor_value; //value was a ffloat before i changed anything
oliviab 45:fc90043ed811 178 string sensor_value; //i added this
zer044 46:b5c571a9a5f5 179 mySensor.run(); //also this
zer044 46:b5c571a9a5f5 180 sensor_value = mySensor.getDataString();
mbed_official 0:7037ed05f54f 181
oliviab 45:fc90043ed811 182
oliviab 45:fc90043ed811 183
oliviab 45:fc90043ed811 184
oliviab 45:fc90043ed811 185 /**
mbed_official 0:7037ed05f54f 186 if (ds1820.begin()) {
mbed_official 0:7037ed05f54f 187 ds1820.startConversion();
mbed_official 0:7037ed05f54f 188 sensor_value = ds1820.read();
mbed_official 0:7037ed05f54f 189 printf("\r\n Dummy Sensor Value = %3.1f \r\n", sensor_value);
mbed_official 0:7037ed05f54f 190 ds1820.startConversion();
mbed_official 0:7037ed05f54f 191 } else {
mbed_official 0:7037ed05f54f 192 printf("\r\n No sensor found \r\n");
mbed_official 0:7037ed05f54f 193 return;
mbed_official 0:7037ed05f54f 194 }
oliviab 45:fc90043ed811 195 */
mbed_official 0:7037ed05f54f 196
oliviab 45:fc90043ed811 197
oliviab 45:fc90043ed811 198
oliviab 45:fc90043ed811 199
zer044 46:b5c571a9a5f5 200 // packet_len = sprintf((char*) tx_buffer,
zer044 46:b5c571a9a5f5 201 // sensor_value);
zer044 46:b5c571a9a5f5 202 packet_len = sensor_value.length();
mbed_official 0:7037ed05f54f 203
zer044 46:b5c571a9a5f5 204 retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, (uint8_t*)(sensor_value.data()), packet_len,
mbed_official 0:7037ed05f54f 205 MSG_CONFIRMED_FLAG);
oliviab 45:fc90043ed811 206
oliviab 45:fc90043ed811 207 printf("\r\n"+packet_len);
oliviab 45:fc90043ed811 208 printf("\r\n"+retcode);
oliviab 45:fc90043ed811 209
mbed_official 0:7037ed05f54f 210
mbed_official 0:7037ed05f54f 211 if (retcode < 0) {
mbed_official 0:7037ed05f54f 212 retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("send - WOULD BLOCK\r\n")
mbed_official 0:7037ed05f54f 213 : printf("\r\n send() - Error code %d \r\n", retcode);
mbed_official 26:f07f5febf97f 214
mbed_official 26:f07f5febf97f 215 if (retcode == LORAWAN_STATUS_WOULD_BLOCK) {
mbed_official 26:f07f5febf97f 216 //retry in 3 seconds
mbed_official 26:f07f5febf97f 217 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 218 ev_queue.call_in(3000, send_message);
mbed_official 26:f07f5febf97f 219 }
mbed_official 26:f07f5febf97f 220 }
mbed_official 0:7037ed05f54f 221 return;
mbed_official 0:7037ed05f54f 222 }
mbed_official 0:7037ed05f54f 223
mbed_official 0:7037ed05f54f 224 printf("\r\n %d bytes scheduled for transmission \r\n", retcode);
mbed_official 12:5015dfead3f2 225 memset(tx_buffer, 0, sizeof(tx_buffer));
mbed_official 0:7037ed05f54f 226 }
mbed_official 0:7037ed05f54f 227
mbed_official 0:7037ed05f54f 228 /**
mbed_official 0:7037ed05f54f 229 * Receive a message from the Network Server
mbed_official 0:7037ed05f54f 230 */
mbed_official 0:7037ed05f54f 231 static void receive_message()
mbed_official 0:7037ed05f54f 232 {
mbed_official 0:7037ed05f54f 233 int16_t retcode;
mbed_official 2:dc95ac6d6d4e 234 retcode = lorawan.receive(MBED_CONF_LORA_APP_PORT, rx_buffer,
mbed_official 12:5015dfead3f2 235 sizeof(rx_buffer),
mbed_official 0:7037ed05f54f 236 MSG_CONFIRMED_FLAG|MSG_UNCONFIRMED_FLAG);
mbed_official 0:7037ed05f54f 237
mbed_official 0:7037ed05f54f 238 if (retcode < 0) {
mbed_official 0:7037ed05f54f 239 printf("\r\n receive() - Error code %d \r\n", retcode);
mbed_official 0:7037ed05f54f 240 return;
mbed_official 0:7037ed05f54f 241 }
mbed_official 0:7037ed05f54f 242
mbed_official 0:7037ed05f54f 243 printf(" Data:");
mbed_official 0:7037ed05f54f 244
mbed_official 0:7037ed05f54f 245 for (uint8_t i = 0; i < retcode; i++) {
mbed_official 0:7037ed05f54f 246 printf("%x", rx_buffer[i]);
mbed_official 0:7037ed05f54f 247 }
mbed_official 0:7037ed05f54f 248
mbed_official 0:7037ed05f54f 249 printf("\r\n Data Length: %d\r\n", retcode);
mbed_official 0:7037ed05f54f 250
mbed_official 12:5015dfead3f2 251 memset(rx_buffer, 0, sizeof(rx_buffer));
mbed_official 0:7037ed05f54f 252 }
mbed_official 0:7037ed05f54f 253
mbed_official 0:7037ed05f54f 254 /**
mbed_official 0:7037ed05f54f 255 * Event handler
mbed_official 0:7037ed05f54f 256 */
mbed_official 0:7037ed05f54f 257 static void lora_event_handler(lorawan_event_t event)
mbed_official 0:7037ed05f54f 258 {
mbed_official 0:7037ed05f54f 259 switch (event) {
mbed_official 0:7037ed05f54f 260 case CONNECTED:
mbed_official 0:7037ed05f54f 261 printf("\r\n Connection - Successful \r\n");
mbed_official 0:7037ed05f54f 262 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 263 send_message();
mbed_official 0:7037ed05f54f 264 } else {
mbed_official 0:7037ed05f54f 265 ev_queue.call_every(TX_TIMER, send_message);
mbed_official 0:7037ed05f54f 266 }
mbed_official 0:7037ed05f54f 267
mbed_official 0:7037ed05f54f 268 break;
mbed_official 0:7037ed05f54f 269 case DISCONNECTED:
mbed_official 0:7037ed05f54f 270 ev_queue.break_dispatch();
mbed_official 0:7037ed05f54f 271 printf("\r\n Disconnected Successfully \r\n");
mbed_official 0:7037ed05f54f 272 break;
mbed_official 0:7037ed05f54f 273 case TX_DONE:
mbed_official 0:7037ed05f54f 274 printf("\r\n Message Sent to Network Server \r\n");
mbed_official 0:7037ed05f54f 275 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 276 send_message();
mbed_official 0:7037ed05f54f 277 }
mbed_official 0:7037ed05f54f 278 break;
mbed_official 0:7037ed05f54f 279 case TX_TIMEOUT:
mbed_official 0:7037ed05f54f 280 case TX_ERROR:
mbed_official 0:7037ed05f54f 281 case TX_CRYPTO_ERROR:
mbed_official 0:7037ed05f54f 282 case TX_SCHEDULING_ERROR:
mbed_official 0:7037ed05f54f 283 printf("\r\n Transmission Error - EventCode = %d \r\n", event);
mbed_official 0:7037ed05f54f 284 // try again
mbed_official 0:7037ed05f54f 285 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 0:7037ed05f54f 286 send_message();
mbed_official 0:7037ed05f54f 287 }
mbed_official 0:7037ed05f54f 288 break;
mbed_official 0:7037ed05f54f 289 case RX_DONE:
mbed_official 0:7037ed05f54f 290 printf("\r\n Received message from Network Server \r\n");
mbed_official 0:7037ed05f54f 291 receive_message();
mbed_official 0:7037ed05f54f 292 break;
mbed_official 0:7037ed05f54f 293 case RX_TIMEOUT:
mbed_official 0:7037ed05f54f 294 case RX_ERROR:
mbed_official 0:7037ed05f54f 295 printf("\r\n Error in reception - Code = %d \r\n", event);
mbed_official 0:7037ed05f54f 296 break;
mbed_official 0:7037ed05f54f 297 case JOIN_FAILURE:
mbed_official 0:7037ed05f54f 298 printf("\r\n OTAA Failed - Check Keys \r\n");
mbed_official 0:7037ed05f54f 299 break;
mbed_official 26:f07f5febf97f 300 case UPLINK_REQUIRED:
mbed_official 26:f07f5febf97f 301 printf("\r\n Uplink required by NS \r\n");
mbed_official 26:f07f5febf97f 302 if (MBED_CONF_LORA_DUTY_CYCLE_ON) {
mbed_official 26:f07f5febf97f 303 send_message();
mbed_official 26:f07f5febf97f 304 }
mbed_official 26:f07f5febf97f 305 break;
mbed_official 0:7037ed05f54f 306 default:
mbed_official 0:7037ed05f54f 307 MBED_ASSERT("Unknown Event");
mbed_official 0:7037ed05f54f 308 }
mbed_official 0:7037ed05f54f 309 }
mbed_official 0:7037ed05f54f 310
mbed_official 0:7037ed05f54f 311 // EOF