Bleeding edge development version of the xDot library for mbed 5. This version of the library is not guaranteed to be stable or well tested and should not be used in production or deployment scenarios.

Dependents:   Dot-Examples Dot-AT-Firmware Dot-Examples TEST_FF1705 ... more

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

Dot Library Version 3 Updates

Dot Library versions 3.x.x require a channel plan to be injected into the stack. Channel plans are included with the 3.x.x Dot Library releases. The following code snippet demonstrates how to create a channel plan and inject it into the stack.

#include "mDot.h"
#include "channel_plans.h"

int main() {
    ChannelPlan* plan = new lora::ChannelPlan_US915();
    assert(plan);
    mDot* dot = mDot::getInstance(plan);
    assert(dot);

    // ...
}

Dot devices must not be deployed with software using a different channel plan than the Dot's default plan! This functionality is for development and testing only!

Multicast Sessions

Multicast sessions and packet rx events in library. When in Class C mode Multicast downlinks can be received. Recieved packets should be filtered on address, counter value will be maintained in the session or can be set explicitly depending on Application support to share Multicast Address, Keys and Counters.

mDot.h

        /**
         * Add a multicast session address and keys
         * Downlink counter is set to 0
         * Up to 3 MULTICAST_SESSIONS can be set
         */
        int32_t setMulticastSession(uint8_t index, uint32_t addr, const uint8_t* nsk, const uint8_t* dsk);
 
        /**
         * Set a multicast session counter
         * Up to 3 MULTICAST_SESSIONS can be set
         */
        int32_t setMulticastDownlinkCounter(uint8_t index, uint32_t count);

mDotEvent.h

The address field was added to PacketRx event.

        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);

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.

mDotEvent.h

Committer:
Jenkins@KEILDM1.dc.multitech.prv
Date:
10 months ago
Revision:
133:4ca51f965419
Parent:
128:ff9ca3779136

File content as of revision 133:4ca51f965419:

#ifndef MDOT_EVENT_H
#define MDOT_EVENT_H

#include "mbed.h"
#include "mDot.h"
#include "MacEvents.h"
#include "MTSLog.h"
#include "MTSText.h"

typedef union {
        uint8_t Value;
        struct {
                uint8_t :1;
                uint8_t Tx :1;
                uint8_t Rx :1;
                uint8_t RxData :1;
                uint8_t RxSlot :2;
                uint8_t LinkCheck :1;
                uint8_t JoinAccept :1;
        } Bits;
} LoRaMacEventFlags;

typedef enum {
    LORAMAC_EVENT_INFO_STATUS_OK = 0,
    LORAMAC_EVENT_INFO_STATUS_ERROR,
    LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT,
    LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT,
    LORAMAC_EVENT_INFO_STATUS_RX_ERROR,
    LORAMAC_EVENT_INFO_STATUS_JOIN_FAIL,
    LORAMAC_EVENT_INFO_STATUS_DOWNLINK_FAIL,
    LORAMAC_EVENT_INFO_STATUS_ADDRESS_FAIL,
    LORAMAC_EVENT_INFO_STATUS_MIC_FAIL,
} LoRaMacEventInfoStatus;

/*!
 * LoRaMAC event information
 */
typedef struct {
        LoRaMacEventInfoStatus Status;
        lora::DownlinkControl Ctrl;
        bool TxAckReceived;
        bool DuplicateRx;
        uint8_t TxNbRetries;
        uint8_t TxDatarate;
        uint8_t RxPort;
        uint8_t *RxBuffer;
        uint8_t RxBufferSize;
        int16_t RxRssi;
        uint8_t RxSnr;
        uint16_t Energy;
        uint8_t DemodMargin;
        uint8_t NbGateways;
} LoRaMacEventInfo;

class mDotEvent: public lora::MacEvents {
    public:

        mDotEvent()
        :
          LinkCheckAnsReceived(false),
          DemodMargin(0),
          NbGateways(0),
          PacketReceived(false),
          RxPort(0),
          RxPayloadSize(0),
          BeaconLocked(false),
          PongReceived(false),
          PongRssi(0),
          PongSnr(0),
          ServerTimeReceived(false),
          ServerTimeSeconds(0U),
          AckReceived(false),
          DuplicateRx(false),
          TxNbRetries(0)
        {
            memset(&_flags, 0, sizeof(LoRaMacEventFlags));
            memset(&_info, 0, sizeof(LoRaMacEventInfo));
        }

        virtual ~mDotEvent() {
        }

        virtual void MacEvent(LoRaMacEventFlags *flags, LoRaMacEventInfo *info) {
            if (mts::MTSLog::getLogLevel() == mts::MTSLog::TRACE_LEVEL) {
                std::string msg = "OK";
                switch (info->Status) {
                    case LORAMAC_EVENT_INFO_STATUS_ERROR:
                        msg = "ERROR";
                        break;
                    case LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT:
                        msg = "TX_TIMEOUT";
                        break;
                    case LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT:
                        msg = "RX_TIMEOUT";
                        break;
                    case LORAMAC_EVENT_INFO_STATUS_RX_ERROR:
                        msg = "RX_ERROR";
                        break;
                    case LORAMAC_EVENT_INFO_STATUS_JOIN_FAIL:
                        msg = "JOIN_FAIL";
                        break;
                    case LORAMAC_EVENT_INFO_STATUS_DOWNLINK_FAIL:
                        msg = "DOWNLINK_FAIL";
                        break;
                    case LORAMAC_EVENT_INFO_STATUS_ADDRESS_FAIL:
                        msg = "ADDRESS_FAIL";
                        break;
                    case LORAMAC_EVENT_INFO_STATUS_MIC_FAIL:
                        msg = "MIC_FAIL";
                        break;
                    default:
                        break;
                }
                logTrace("Event: %s", msg.c_str());

                logTrace("Flags Tx: %d Rx: %d RxData: %d RxSlot: %d LinkCheck: %d JoinAccept: %d",
                         flags->Bits.Tx, flags->Bits.Rx, flags->Bits.RxData, flags->Bits.RxSlot, flags->Bits.LinkCheck, flags->Bits.JoinAccept);
                logTrace("Info: Status: %d ACK: %d Retries: %d TxDR: %d RxPort: %d RxSize: %d RSSI: %d SNR: %d Energy: %d Margin: %d Gateways: %d",
                         info->Status, info->TxAckReceived, info->TxNbRetries, info->TxDatarate, info->RxPort, info->RxBufferSize,
                         info->RxRssi, info->RxSnr, info->Energy, info->DemodMargin, info->NbGateways);
            }
        }

        virtual void TxStart() {
            logDebug("mDotEvent - TxStart");
        }

        virtual void TxDone(uint8_t dr) {
            RxPayloadSize = 0;
            LinkCheckAnsReceived = false;
            PacketReceived = false;
            AckReceived = false;
            DuplicateRx = false;
            PongReceived = false;
            TxNbRetries = 0;

            logDebug("mDotEvent - TxDone");
            memset(&_flags, 0, sizeof(LoRaMacEventFlags));
            memset(&_info, 0, sizeof(LoRaMacEventInfo));

            _flags.Bits.Tx = 1;
            _info.TxDatarate = dr;
            _info.Status = LORAMAC_EVENT_INFO_STATUS_OK;
            Notify();
        }

        void Notify() {
            MacEvent(&_flags, &_info);
        }

        virtual void TxTimeout(void) {
            logDebug("mDotEvent - TxTimeout");

            _flags.Bits.Tx = 1;
            _info.Status = LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT;
            Notify();
        }

        virtual void JoinAccept(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr) {
            logDebug("mDotEvent - JoinAccept");

            _flags.Bits.Tx = 0;
            _flags.Bits.JoinAccept = 1;
            _info.Status = LORAMAC_EVENT_INFO_STATUS_OK;
            Notify();
        }

        virtual void JoinFailed(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr) {
            logDebug("mDotEvent - JoinFailed");

            _flags.Bits.Tx = 0;
            _flags.Bits.JoinAccept = 1;
            _info.Status = LORAMAC_EVENT_INFO_STATUS_JOIN_FAIL;
            Notify();
        }

        virtual void MissedAck(uint8_t retries) {
            logDebug("mDotEvent - MissedAck : retries %u", retries);
            TxNbRetries = retries;
            _info.TxNbRetries = retries;
        }

        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) {
            logDebug("mDotEvent - PacketRx ADDR: %08x", address);
            RxPort = port;
            PacketReceived = true;

            memcpy(RxPayload, payload, size);
            RxPayloadSize = size;

            if (ctrl.Bits.Ack) {
                AckReceived = true;
            }

            DuplicateRx = dupRx;

            if (mts::MTSLog::getLogLevel() == mts::MTSLog::TRACE_LEVEL) {
                std::string packet = mts::Text::bin2hexString(RxPayload, size);
                logTrace("Payload: %s", packet.c_str());
            }

            _flags.Bits.Tx = 0;
            _flags.Bits.Rx = 1;
            _flags.Bits.RxData = size > 0;
            _flags.Bits.RxSlot = slot;
            _info.RxBuffer = payload;
            _info.RxBufferSize = size;
            _info.RxPort = port;
            _info.RxRssi = rssi;
            _info.RxSnr = snr;
            _info.TxAckReceived = AckReceived;
            _info.DuplicateRx = DuplicateRx;
            _info.TxNbRetries = retries;
            _info.Status = LORAMAC_EVENT_INFO_STATUS_OK;
            Notify();
        }

        virtual void RxDone(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr, lora::DownlinkControl ctrl, uint8_t slot) {
            logDebug("mDotEvent - RxDone");
        }

        virtual void BeaconRx(const lora::BeaconData_t& beacon_data, int16_t rssi, int8_t snr) {
            logDebug("mDotEvent - BeaconRx");
            BeaconLocked = true;
            BeaconData = beacon_data;
        }

        virtual void BeaconLost() {
            logDebug("mDotEvent - BeaconLost");
            BeaconLocked = false;
        }

        virtual void Pong(int16_t m_rssi, int8_t m_snr, int16_t s_rssi, int8_t s_snr) {
            logDebug("mDotEvent - Pong");
            PongReceived = true;
            PongRssi = s_rssi;
            PongSnr = s_snr;
        }

        virtual void ServerTime(uint32_t seconds, uint8_t sub_seconds) {
            logDebug("mDotEvent - ServerTime");
            ServerTimeReceived = true;
            ServerTimeSeconds = seconds;
        }

        virtual void NetworkLinkCheck(int16_t m_rssi, int8_t m_snr, int8_t s_snr, uint8_t s_gateways) {
            logDebug("mDotEvent - NetworkLinkCheck");
            LinkCheckAnsReceived = true;
            DemodMargin = s_snr;
            NbGateways = s_gateways;

            _flags.Bits.Tx = 0;
            _flags.Bits.LinkCheck = 1;
            _info.RxRssi = m_rssi;
            _info.RxSnr = m_snr;
            _info.DemodMargin = s_snr;
            _info.NbGateways = s_gateways;
            _info.Status = LORAMAC_EVENT_INFO_STATUS_OK;
            Notify();
        }

        virtual void RxTimeout(uint8_t slot) {
            logDebug("mDotEvent - RxTimeout on Slot %d", slot);

            _flags.Bits.Tx = 0;
            _flags.Bits.RxSlot = slot;
            _info.Status = LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT;
            Notify();
        }

        virtual void RxError(uint8_t slot) {
            logDebug("mDotEvent - RxError");

            memset(&_flags, 0, sizeof(LoRaMacEventFlags));
            memset(&_info, 0, sizeof(LoRaMacEventInfo));

            _flags.Bits.RxSlot = slot;
            _info.Status = LORAMAC_EVENT_INFO_STATUS_RX_ERROR;
            Notify();
        }

        virtual uint8_t MeasureBattery(void) {
            return 255;
        }

        bool LinkCheckAnsReceived;
        uint8_t DemodMargin;
        uint8_t NbGateways;

        bool PacketReceived;
        uint8_t RxPort;
        uint8_t RxPayload[255];
        uint8_t RxPayloadSize;

        bool BeaconLocked;
        lora::BeaconData_t BeaconData;

        bool PongReceived;
        int16_t PongRssi;
        int16_t PongSnr;

        bool ServerTimeReceived;
        uint32_t ServerTimeSeconds;

        bool AckReceived;
        bool DuplicateRx;
        uint8_t TxNbRetries;

        LoRaMacEventFlags& Flags() {
            return _flags;
        }
        LoRaMacEventInfo& Info() {
            return _info;
        }

    private:
        LoRaMacEventFlags _flags;
        LoRaMacEventInfo _info;

//
//        /*!
//         * MAC layer event callback prototype.
//         *
//         * \param [IN] flags Bit field indicating the MAC events occurred
//         * \param [IN] info  Details about MAC events occurred
//         */
//        virtual void MacEvent(LoRaMacEventFlags *flags, LoRaMacEventInfo *info) {
//            logDebug("mDotEvent");
//
//            if (flags->Bits.Rx) {
//                logDebug("Rx");
//
//                // Event Object must delete RxBuffer
//                delete[] info->RxBuffer;
//            }
//        }
//

};

#endif // __MDOT_EVENT_H__