Stable version of the mDot library for mbed 5. This version of the library is suitable for deployment scenarios. See lastest commit message for version of mbed-os library that has been tested against.

Dependents:   mdot_two_way unh-hackathon-example unh-hackathon-example-raw TelitSensorToCloud ... more

Fork of libmDot-dev-mbed5-deprecated by MultiTech

The Dot library provides a LoRaWan certified stack for LoRa communication using MultiTech mDot and xDot devices. The stack is compatible with mbed 5.

The name of the repository can be used to determine which device the stack was compiled for and if it's a development or production-ready build:

A changelog for the Dot library can be found here.

The Dot library version and the version of mbed-os it was compiled against can both be found in the commit message for that revision of the Dot library. Building your application with the same version of mbed-os as what was used to build the Dot library is highly recommended!

The Dot-Examples repository demonstrates how to use the Dot library in a custom application.

The mDot and xDot platform pages have lots of platform specific information and document potential issues, gotchas, etc, and provide instructions for getting started with development. Please take a look at the platform page before starting development as they should answer many questions you will have.

FOTA

Full FOTA support is only available with mDot, xDot does not have the required external flash. xDot can use the FOTA example to dynamically join a multicast session only. After joining the multicast session the received Fragmentation packets could be handed to a host MCU for processing and at completion the firmware can be loaded into the xDot using the bootloader and y-modem. See xDot Developer Guide.

  • Add the following code to allow Fota to use the Dot instance

main.cpp

    // Initialize FOTA singleton
    Fota::getInstance(dot);
  • Add fragmentation handling the the PacketRx event

RadioEvent.h

    virtual void PacketRx(uint8_t port, uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr, lora::DownlinkControl ctrl, uint8_t slot, uint8_t retries, uint32_t address, bool dupRx) {
        mDotEvent::PacketRx(port, payload, size, rssi, snr, ctrl, slot, retries, address, dupRx);

#if ACTIVE_EXAMPLE == FOTA_EXAMPLE
        if(port == 200 || port == 201 || port == 202) {
            Fota::getInstance()->processCmd(payload, port, size);
        }
#endif
    }

A definition is needed to enable Fragmentation support on mDot and save fragments to flash. This should not be defined for xDot and will result in a compiler error.

mbed_app.json

{
    "macros": [
        "FOTA=1"
    ]
}

The FOTA implementation has a few differences from the LoRaWAN Protocol

  • Fragmentation Indexing starts at 0
  • McKEKey is 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
  • Start Time is a count-down in seconds to start of session
Revision:
7:683dba5d576f
Parent:
6:390fc83d588d
Child:
9:ec2fffe31793
--- a/mDot.h	Thu Jul 16 16:41:08 2015 -0500
+++ b/mDot.h	Mon Aug 17 16:18:29 2015 -0500
@@ -1,4 +1,10 @@
-// TODO: add license header
+/************************************************
+ * MultiTech MTDOT Library
+ * Copyright (c) 2015 MultiTech Systems
+ *
+ * See LICENSE file for license information
+ ***********************************************/
+
 
 #ifndef MDOT_H
 #define MDOT_H
@@ -14,7 +20,6 @@
 class LoRaMac;
 class MdotRadio;
 
-
 class mDot {
 
     private:
@@ -51,6 +56,11 @@
         mDot(const mDot&);
         mDot& operator=(const mDot&);
 
+        uint32_t RTC_ReadBackupRegister(uint32_t RTC_BKP_DR);
+        void RTC_WriteBackupRegister(uint32_t RTC_BKP_DR, uint32_t Data);
+
+        void wakeup();
+
         static mDot* _instance;
 
         LoRaMac* _mac;
@@ -67,6 +77,9 @@
         PinName _activity_led_pin;
         bool _activity_led_external;
         uint16_t _linkFailCount;
+        uint8_t _class;
+        InterruptIn* _wakeup;
+        PinName _wakeup_pin;
 
         typedef enum {
             OFF, ON, BLINK,
@@ -75,6 +88,16 @@
     public:
 
         typedef enum {
+            FM_APPEND = (1 << 0),
+            FM_TRUNC = (1 << 1),
+            FM_CREAT = (1 << 2),
+            FM_RDONLY = (1 << 3),
+            FM_WRONLY = (1 << 4),
+            FM_RDWR = (FM_RDONLY | FM_WRONLY),
+            FM_DIRECT = (1 << 5)
+        } FileMode;
+
+        typedef enum {
             MDOT_OK = 0,
             MDOT_INVALID_PARAM = -1,
             MDOT_TX_ERROR = -2,
@@ -115,6 +138,16 @@
             LSB, MSB
         };
 
+        enum wakeup_mode {
+            RTC_ALARM, INTERRUPT
+        };
+
+        typedef struct {
+                int16_t fd;
+                char name[30];
+                uint32_t size;
+        } mdot_file;
+
         typedef struct {
                 uint32_t Up;
                 uint32_t Down;
@@ -589,7 +622,6 @@
          */
         int32_t recv(std::vector<uint8_t>& data);
 
-        void openRxWindow(uint32_t timeout);
 
         /** Ping
          * status will be MDOT_OK if ping succeeded
@@ -607,12 +639,34 @@
          */
         std::string getLastError();
 
+        /** Go to sleep
+         * @param interval the number of seconds to sleep before waking up if wakeup_mode == RTC_ALARM, else ignored
+         * @param wakeup_mode RTC_ALARM, INTERRUPT
+         *      if RTC_ALARM the real time clock is configured to wake the device up after the specified interval
+         *      if INTERRUPT the device will wake up on the rising edge of the interrupt pin
+         * @param deepsleep if true go into deep sleep mode (lowest power, all memory and registers are lost, peripherals turned off)
+         *                  else go into sleep mode (low power, memory and registers are maintained, peripherals stay on)
+         *
+         * ** CURRENTLY ONLY DEEPSLEEP MODE IS AVAILABLE **
+         *
+         * in sleep mode, the device can be woken up on any of the XBEE pins or by the RTC alarm
+         * in deepsleep mode, the device can only be woken up using the WKUP pin (PA0, XBEE_DIO7) or by the RTC alarm
+         */
+        void sleep(const uint32_t& interval, const uint8_t& wakeup_mode = RTC_ALARM, const bool& deepsleep = true);
+
+        /** Set wake pin
+         * @param pin the pin to use to wake the device from sleep mode
+         */
+        void setWakePin(const PinName& pin);
+
+        /** Get wake pin
+         * @returns the pin to use to wake the device from sleep mode
+         */
+        PinName getWakePin();
+
         /******************************************
          * THESE FEATURES ARE NOT FULLY IMPLEMENTED
          *****************************************/
-        void sleep();
-        void wakeup();
-
         // get/set adaptive data rate
         // configure data rates and power levels based on signal to noise information from gateway
         // true == adaptive data rate is on
@@ -624,7 +678,7 @@
          * The following functions are only used by the AT command application and
          * should not be used by standard applications consuming the mDot library
          ************************************************************************/
-        
+
         // set/get configured baud rate for command port
         // only for use in conjunction with AT interface
         // set function returns MDOT_OK if success
@@ -683,24 +737,115 @@
         // get/set serial wake interval
         // valid values are 2 s - INT_MAX (2147483647) s
         // set function returns MDOT_OK if success
-        int32_t setSerialWakeInterval(const uint32_t& interval);
-        uint32_t getSerialWakeInterval();
+        int32_t setWakeInterval(const uint32_t& interval);
+        uint32_t getWakeInterval();
 
         // get/set serial wake delay
         // valid values are 2 ms - INT_MAX (2147483647) ms
         // set function returns MDOT_OK if success
-        int32_t setSerialWakeDelay(const uint32_t& delay);
-        uint32_t getSerialWakeDelay();
+        int32_t setWakeDelay(const uint32_t& delay);
+        uint32_t getWakeDelay();
 
         // get/set serial receive timeout
         // valid values are 0 ms - 65000 ms
         // set function returns MDOT_OK if success
-        int32_t setSerialReceiveTimeout(const uint16_t& timeout);
-        uint16_t getSerialReceiveTimeout();
+        int32_t setWakeTimeout(const uint16_t& timeout);
+        uint16_t getWakeTimeout();
+
+        // get/set serial wake mode
+        // valid values are INTERRUPT or RTC_ALARM
+        // set function returns MDOT_OK if success
+        int32_t setWakeMode(const uint8_t& delay);
+        uint8_t getWakeMode();
+
+        // Save user file data to flash
+        // file - name of file max 30 chars
+        // data - data of file
+        // size - size of file
+        bool saveUserFile(const char* file, void* data, uint32_t size);
+
+        // Append user file data to flash
+        // file - name of file max 30 chars
+        // data - data of file
+        // size - size of file
+        bool appendUserFile(const char* file, void* data, uint32_t size);
+
+        // Read user file data from flash
+        // file - name of file max 30 chars
+        // data - data of file
+        // size - size of file
+        bool readUserFile(const char* file, void* data, uint32_t size);
+
+        // Move a user file in flash
+        // file     - name of file
+        // new_name - new name of file
+        bool moveUserFile(const char* file, const char* new_name);
+
+        // Delete user file data from flash
+        // file - name of file max 30 chars
+        bool deleteUserFile(const char* file);
+
+        // Open user file in flash, max of 4 files open concurrently
+        // file - name of file max 30 chars
+        // mode - combination of FM_APPEND | FM_TRUNC | FM_CREAT |
+        //                       FM_RDONLY | FM_WRONLY | FM_RDWR | FM_DIRECT
+        // returns - mdot_file struct, fd field will be a negative value if file could not be opened
+        mDot::mdot_file openUserFile(const char* file, int mode);
+
+        // Seek an open file
+        // file - mdot file struct
+        // offset - offset in bytes
+        // whence - where offset is based SEEK_SET, SEEK_CUR, SEEK_END
+        bool seekUserFile(mDot::mdot_file& file, size_t offset, int whence);
+
+        // Read bytes from open file
+        // file - mdot file struct
+        // data - mem location to store data
+        // length - number of bytes to read
+        // returns - number of bytes written
+        int readUserFile(mDot::mdot_file& file, void* data, size_t length);
+
+        // Write bytes to open file
+        // file - mdot file struct
+        // data - data to write
+        // length - number of bytes to write
+        // returns - number of bytes written
+        int writeUserFile(mDot::mdot_file& file, void* data, size_t length);
+
+        // Close open file
+        // file - mdot file struct
+        bool closeUserFile(mDot::mdot_file& file);
+
+        // List user files stored in flash
+        std::vector<mDot::mdot_file> listUserFiles();
+
+        // Move file into the firmware upgrade path to be flashed on next boot
+        // file - name of file
+        bool moveUserFileToFirmwareUpgrade(const char* file);
+
+        // get current statistics
+        // Join Attempts, Join Fails, Up Packets, Down Packets, Missed Acks
+        mdot_stats getStats();
+
+        // reset statistics
+        // Join Attempts, Join Fails, Up Packets, Down Packets, Missed Acks
+        void resetStats();
+
+        // Convert pin number 2-8 to pin name DIO2-DI8
+        static PinName pinNum2Name(uint8_t num);
+
+        // Convert pin name DIO2-DI8 to pin number 2-8
+        static uint8_t pinName2Num(PinName name);
+
+        // Convert pin name DIO2-DI8 to string
+        static std::string pinName2Str(PinName name);
+
 
         uint64_t crc64(uint64_t crc, const unsigned char *s, uint64_t l);
 
         // MTS_RADIO_DEBUG_COMMANDS
+
+        void openRxWindow(uint32_t timeout, uint8_t bandwidth = 0);
         void sendContinuous();
         int32_t setDeviceId(const std::vector<uint8_t>& id);
         int32_t setFrequencyBand(const uint8_t& band);
@@ -710,9 +855,21 @@
         std::map<uint8_t, uint8_t> dumpRegisters();
         void eraseFlash();
 
-        mdot_stats getStats();
-        void resetStats();
+
+        // deprecated - use setWakeInterval
+        int32_t setSerialWakeInterval(const uint32_t& interval);
+        // deprecated - use getWakeInterval
+        uint32_t getSerialWakeInterval();
 
+        // deprecated - use setWakeDelay
+        int32_t setSerialWakeDelay(const uint32_t& delay);
+        // deprecated - use setWakeDelay
+        uint32_t getSerialWakeDelay();
+
+        // deprecated - use setWakeTimeout
+        int32_t setSerialReceiveTimeout(const uint16_t& timeout);
+        // deprecated - use getWakeTimeout
+        uint16_t getSerialReceiveTimeout();
 
     private:
         mdot_stats _stats;