SafeDetect / Mbed OS lora_from_scratch

lora's drivers taken out of examples repo to make a smaller binary

Dependencies:   libxDot-mbed5

src/main.cpp@1:80bc4501abc5, 2019-12-08 (annotated)

Committer:
candre97
Date:
Sun Dec 08 01:56:17 2019 +0000
Revision:
1:80bc4501abc5
Parent:
0:973a5bbb2a17 
working on lower levels of radio driver. Still have a binary that is much too large. ;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
candre97 1:80bc4501abc5 1 /* mbed Microcontroller Library
candre97 1:80bc4501abc5 2 * Copyright (c) 2018 ARM Limited
candre97 1:80bc4501abc5 3 * SPDX-License-Identifier: Apache-2.0
candre97 1:80bc4501abc5 4 */
candre97 1:80bc4501abc5 5 #include <stdio.h>
candre97 1:80bc4501abc5 6 #include <LoRaRadio.h>
candre97 1:80bc4501abc5 7 #include "dot_util.h"
candre97 1:80bc4501abc5 8 #include "RadioEvent.h"
guoxsharon 0:973a5bbb2a17 9
candre97 1:80bc4501abc5 10 // Application helper
guoxsharon 0:973a5bbb2a17 11 #include "mbed.h"
candre97 1:80bc4501abc5 12 #include <AnalogIn.h>
candre97 1:80bc4501abc5 13 #include <DigitalOut.h>
candre97 1:80bc4501abc5 14
candre97 1:80bc4501abc5 15 static std::string network_name = "LAleakers";
candre97 1:80bc4501abc5 16 static std::string network_passphrase = "stephisbroke";
candre97 1:80bc4501abc5 17 static uint8_t network_id[] = { 0x6C, 0x4E, 0xEF, 0x66, 0xF4, 0x79, 0x86, 0xA6 };
candre97 1:80bc4501abc5 18 static uint8_t network_key[] = { 0x1F, 0x33, 0xA1, 0x70, 0xA5, 0xF1, 0xFD, 0xA0, 0xAB, 0x69, 0x7A, 0xAE, 0x2B, 0x95, 0x91, 0x6B };
candre97 1:80bc4501abc5 19 static uint8_t frequency_sub_band = 7;
candre97 1:80bc4501abc5 20 static lora::NetworkType network_type = lora::PUBLIC_LORAWAN;
candre97 1:80bc4501abc5 21 static uint8_t join_delay = 5;
candre97 1:80bc4501abc5 22 static uint8_t ack = 0;
candre97 1:80bc4501abc5 23 static bool adr = true;
candre97 1:80bc4501abc5 24
candre97 1:80bc4501abc5 25 mDot* dot = NULL;
candre97 1:80bc4501abc5 26 lora::ChannelPlan* plan = new lora::ChannelPlan_US915();
candre97 1:80bc4501abc5 27
candre97 1:80bc4501abc5 28 I2C i2c(I2C_SDA, I2C_SCL);
guoxsharon 0:973a5bbb2a17 29
candre97 1:80bc4501abc5 30 // PIN DEFINITIONS
candre97 1:80bc4501abc5 31 DigitalOut vcc(GPIO0);
candre97 1:80bc4501abc5 32 AnalogIn mic(PB_0);
candre97 1:80bc4501abc5 33
candre97 1:80bc4501abc5 34 // To sleep, 'wait' should be replaced by 'ThisThread::sleep_for' (C++) or 'thread_sleep_for' (C). If you wish to wait (without sleeping), call 'wait_us'. 'wait_us' is safe to call from ISR context. [since mbed-os-5.14] [-Wdeprecated-declarations] in "main.cpp", Line: 59, Col: 9
candre97 1:80bc4501abc5 35
candre97 1:80bc4501abc5 36 int main() {
candre97 1:80bc4501abc5 37 i2c.frequency(400000);
candre97 1:80bc4501abc5 38 assert(plan);
candre97 1:80bc4501abc5 39 RadioEvent events;
candre97 1:80bc4501abc5 40 dot = mDot::getInstance(plan);
candre97 1:80bc4501abc5 41 assert(dot);
candre97 1:80bc4501abc5 42
candre97 1:80bc4501abc5 43 // attach the custom events handler
candre97 1:80bc4501abc5 44 dot->setEvents(&events);
guoxsharon 0:973a5bbb2a17 45
candre97 1:80bc4501abc5 46 if (!dot->getStandbyFlag()) {
candre97 1:80bc4501abc5 47 logInfo("mbed-os library version: %d.%d.%d", MBED_MAJOR_VERSION, MBED_MINOR_VERSION, MBED_PATCH_VERSION);
candre97 1:80bc4501abc5 48
candre97 1:80bc4501abc5 49 // start from a well-known state
candre97 1:80bc4501abc5 50 logInfo("defaulting Dot configuration");
candre97 1:80bc4501abc5 51 dot->resetConfig();
candre97 1:80bc4501abc5 52 dot->resetNetworkSession();
candre97 1:80bc4501abc5 53
candre97 1:80bc4501abc5 54 // make sure library logging is turned on
candre97 1:80bc4501abc5 55 dot->setLogLevel(mts::MTSLog::INFO_LEVEL);
candre97 1:80bc4501abc5 56
candre97 1:80bc4501abc5 57 // update configuration if necessary
candre97 1:80bc4501abc5 58 if (dot->getJoinMode() != mDot::OTA) {
candre97 1:80bc4501abc5 59 logInfo("changing network join mode to OTA");
candre97 1:80bc4501abc5 60 if (dot->setJoinMode(mDot::OTA) != mDot::MDOT_OK) {
candre97 1:80bc4501abc5 61 logError("failed to set network join mode to OTA");
candre97 1:80bc4501abc5 62 }
guoxsharon 0:973a5bbb2a17 63 }
candre97 1:80bc4501abc5 64 // in OTA and AUTO_OTA join modes, the credentials can be passed to the library as a name and passphrase or an ID and KEY
candre97 1:80bc4501abc5 65 // only one method or the other should be used!
candre97 1:80bc4501abc5 66 // network ID = crc64(network name)
candre97 1:80bc4501abc5 67 // network KEY = cmac(network passphrase)
candre97 1:80bc4501abc5 68 update_ota_config_name_phrase(network_name, network_passphrase, frequency_sub_band, network_type, ack);
candre97 1:80bc4501abc5 69 //update_ota_config_id_key(network_id, network_key, frequency_sub_band, network_type, ack);
guoxsharon 0:973a5bbb2a17 70
candre97 1:80bc4501abc5 71 // configure network link checks
candre97 1:80bc4501abc5 72 // network link checks are a good alternative to requiring the gateway to ACK every packet and should allow a single gateway to handle more Dots
candre97 1:80bc4501abc5 73 // check the link every count packets
candre97 1:80bc4501abc5 74 // declare the Dot disconnected after threshold failed link checks
candre97 1:80bc4501abc5 75 // for count = 3 and threshold = 5, the Dot will ask for a link check response every 5 packets and will consider the connection lost if it fails to receive 3 responses in a row
candre97 1:80bc4501abc5 76 update_network_link_check_config(3, 5);
guoxsharon 0:973a5bbb2a17 77
candre97 1:80bc4501abc5 78 // enable or disable Adaptive Data Rate
candre97 1:80bc4501abc5 79 dot->setAdr(adr);
candre97 1:80bc4501abc5 80
candre97 1:80bc4501abc5 81 // Configure the join delay
candre97 1:80bc4501abc5 82 dot->setJoinDelay(join_delay);
candre97 1:80bc4501abc5 83
candre97 1:80bc4501abc5 84 // save changes to configuration
candre97 1:80bc4501abc5 85 logInfo("saving configuration");
candre97 1:80bc4501abc5 86 if (!dot->saveConfig()) {
candre97 1:80bc4501abc5 87 logError("failed to save configuration");
candre97 1:80bc4501abc5 88 }
guoxsharon 0:973a5bbb2a17 89
candre97 1:80bc4501abc5 90 // display configuration
candre97 1:80bc4501abc5 91 display_config();
candre97 1:80bc4501abc5 92 } else {
candre97 1:80bc4501abc5 93 // restore the saved session if the dot woke from deepsleep mode
candre97 1:80bc4501abc5 94 // useful to use with deepsleep because session info is otherwise lost when the dot enters deepsleep
candre97 1:80bc4501abc5 95 logInfo("restoring network session from NVM");
candre97 1:80bc4501abc5 96 dot->restoreNetworkSession();
candre97 1:80bc4501abc5 97 }
candre97 1:80bc4501abc5 98 // join network if not joined
candre97 1:80bc4501abc5 99 if (!dot->getNetworkJoinStatus()) {
candre97 1:80bc4501abc5 100 join_network();
candre97 1:80bc4501abc5 101 }
candre97 1:80bc4501abc5 102
candre97 1:80bc4501abc5 103 /*
candre97 1:80bc4501abc5 104 tests:
candre97 1:80bc4501abc5 105 1. Check received transmissions/second from this loop
candre97 1:80bc4501abc5 106 2. make the packet size a lot bigger
candre97 1:80bc4501abc5 107 3.
candre97 1:80bc4501abc5 108 */
candre97 1:80bc4501abc5 109 // get some data in send vector
candre97 1:80bc4501abc5 110 std::vector<uint8_t> tx_data;
candre97 1:80bc4501abc5 111 tx_data.clear();
candre97 1:80bc4501abc5 112 snprintf(arr, 5, "%u", mic.read_u16());
candre97 1:80bc4501abc5 113 for(int i = 0; i < 5; i++) {
candre97 1:80bc4501abc5 114 tx_data.push_back(arr[i]);
candre97 1:80bc4501abc5 115 }
candre97 1:80bc4501abc5 116
candre97 1:80bc4501abc5 117 while(1) {
candre97 1:80bc4501abc5 118 send_data(tx_data);
guoxsharon 0:973a5bbb2a17 119 }
guoxsharon 0:973a5bbb2a17 120 }