2.0.16¶

Changes¶

• check PVD before executing filesystem transactions - greatly reduces chance of filesystem corruption on mDots running at voltages < 3.3V

Bug Fixes¶

Known Issues¶

• TX DataRate will be reset to DR0 during OTA join process - workaround is to set TX DataRate after joining the network
  

2.0.15¶

Changes¶

• Save and restore internal GPIO state around sleep mode to achieve lowest possible power consumption
• add mbed library version to library version
• ADR: check adr request datarate and channel mask independently
• enable test mode TX delay
• ADR: Do not change datarate until ACK_LIMIT + ACK_DELAY + 1 (64 + 32 + 1 = 97)
• update test mode packet timeout to 160

Bug Fixes¶

• Wake up from Sleep mode on either edge instead of only falling edge

Known Issues¶

• TX DataRate will be reset to DR0 during OTA join process - workaround is to set TX DataRate after joining the network
  

2.0.14¶

Changes¶

• FSK mode fixes for xDot, can send up to 242 bytes

Bug Fixes¶

Known Issues¶

• TX DataRate will be reset to DR0 during OTA join process - workaround is to set TX DataRate after joining the network
  

2.0.10¶

Changes¶

• Allow dev address 00000000
• Fix P2P power limiting based on configured frequency and regional regulations

Bug Fixes¶

Known Issues¶

2.0.8¶

Changes¶

• Better stop mode current 55 uA
• Calibrate tx power based on measure power at each setting
• ADR reduce datarate after each ADR_ACK_DELAY (32)

Bug Fixes¶

Known Issues¶

2.0.1¶

Changes¶

• Alternate between 125 and 500 kHz channels on join for US915/AU915
• Calculate join backoff as random value between 0 and max duty-cycle for current backoff period.
• Join backoff keep track of time-on-air for current period
• Cycle through datarates on join attempts
• Class C handle rx timeouts for missed ACK and missed join, skip rx2 window event as rx2 is opened on timeout of rx1
• Add support for generating CW of cert testing
• ADR check if datarate was lowered below current payload size and increment as necessary
• Do not allow mac commands in payload and options bytes. Bad check caused link check failure. [IN:1928]
• P2P will use TX frequency setting in EU868 and respect duty cycle according to set power level (Must set to 869.85 MHz and Power + Ant < 7 dBm for 100% duty-cycle)
• Antenna gain param change will take effect immediately
• Public/Private mode will take effect immediately

Bug Fixes¶

Known Issues¶

1.1.0¶

Changes¶

• Function to clear uplink mac command buffer
• Function to retrieve uplink mac command buffer
• Function to cancel rx windows

Bug Fixes¶

• US915 Rx1 with datarate offset for TxDR 0,1,2 and Offset 1,2,3 fixed
• Convert input of SF_12 or SF_11 to DR0 in US915
• US915 64 channel mode skipped channel 16

Known Issues¶

1.0.13¶

Changes¶

• Join Duty cycle limitation 1% first hour, 0.1% next ten hours, 0.01% there after
• Random Join Datarate
• Aggregate Duty Cycle limitation configurable by MAC command

Bug Fixes¶

• AT+TXCH output is fixed

Known Issues¶

1.0.12¶

Changes¶

• AU915 Support according to LoRaWAN 1.0.1
• ACK and REP settings take effect without save/restart
• Peer to peer rx window open at start
• Duty cycle will run for all datarates
• Added check for max payload
• Class C support AT+DC=C (use AT+SD or debug log to see packets received from server)
• AT+MAC command to inject mac commands into mac layer (see attached doc for command instructions, debug output will show effect of commands)
• AT+TXCH output has been changed
• AT+CHM - allows changing the channel mask of enabled channels AT+CHM=0,00FF (enable 0-15) AT+CHM=1,FF00 (enable 48-55)
• +PING and +NLC fixed
• Peer to peer much better (aka works)

Bug Fixes¶

Known Issues¶

1.0.9¶

Changes¶

Switched LoRaWAN implementation to MTS-Lora

Bug Fixes¶

Known Issues¶

1.0.8-1 Sleep¶

Changes¶

• Improved sleep functionality.
  • Sleep (stop) mode leaves the application in control of the external I/O pins. In order to achieve lowest power draw, it is recommended that those pins be configured at analog inputs with no pull resistors during sleep. If the application needs to maintain a pull up or pull down resistor on any of the external pins, this mode needs to be used. Otherwise deep sleep (standby) is recommended.
  • Deep sleep (standby) power draw was found to be inconsistent. Deep sleep is now consistent at about 40uA. When deep sleep is requested, all I/O pin states are saved before sleep and restored after sleep. The mDot library invokes stop mode on the processor so that some internal pins can be pulled high or low during sleep to achieve minimum power draw. When exiting sleep, the processor is not reset and RAM is maintained.

Bug Fixes¶

Known Issues¶

1.0.8¶

Changes¶

Bug Fixes¶

• US ADR fixed for 64 channels
• EU ADR commands accept only ctrl mask of 0 or 6
• Add configured channels only in EU868 mode

Known Issues¶

1.0.6¶

Changes¶

• Handle packet repeat settings with timeout values and reset rx window flags
• Fix SF to DR convert in setTxDatarate function

Bug Fixes¶

• Add configured channels to the session on startup [IN:001786]
• next tx ms now looks only at channels that support current datarate

Known Issues¶

1.0.5¶

Changes¶

• FSK Payload 50 bytes

Bugfixes¶

• Stop RX2 window only if valid packet received
• Apply correct frequency for duty-cycle in peer-to-peer mode [IN:1775]

Known Issues¶

1.0.4¶

Changes¶

• LoRaWAN 1.0 Certified

Bug Fixes¶

• Extract RX Datarate from MAC command correctly

Known Issues¶

1.0.3¶

Changes¶

• ADR functionality complete

Bug Fixes¶

• ADR parameter validation

Known Issues¶

1.0.0-rc2¶

Changes¶

• Reset server ACK requested on txdone

Bugfixes¶

• 868 optional channels in join accept message received as LSB
• Update downlink counter only if mic passes
• Save timer value to temp variable, addresses race condition that led to MAX_INT wait times [IN:001725]
• Power adjustments of txPower as radio output and antenna gain accounted for
• Removed redundant max payload size check at 242
• Mac timers start on Wakeup [IN:001719]

Known Issues¶

1.0.0¶

Changes¶

• Preserve Session - allow configuration to preserve session in AUTO_OTA mode over reset/power, save session must be called before power down to save uplink counter
• Save Session - allow user to save session including uplink counter
• Restore Session - allow user to restore session including uplink counter
• Join Delay - allow configuration of join rx window 1 delay
• Rx Delay - allow configuration of rx window 1 delay
• App Port - allow configuration of port for application data
• RTC clock not reset over sleep
• sleep - two sleep modes available sleep and deepsleep
• duty-cycle checks time off air instead of toggling channel in channel mask
• add aggregate duty cycle limiting
• add Repeat setting to repeat unconfirmed frames (0-15) 0|1 send once
• expand send error messages to include duty cycle limits met messages
• Keep RxTimingSetupAns in mac command buffer until downlink is received
• Choose random datarate upto the configured datarate for join request
• Implemented AddChannel function
• Implemented LoRaWAN 1.0 EU868 test-mode
• Implemented join duty-cycle based on LoRaWAN 1.0.1
  • Join duty-cycle 1% for 1st hour, 0.1% 1-10 hours and 0.01% beyond 10 hours is enforced in US and EU modes
• Add upto 10 random seconds between join attempts
• Add UplinkCounter, Rx1Delay, Datarate, TxPower, Repeat, Rx2Frequency, DownlinkCounter, AggregateDutyCycle to session info
• Add seedRandom function to allow external seeding of RNG, defaults to RSSI reading from radio to generate random seed
• highBw is deprecated in the send function, setTxDatarate can accept high-speed datarates US(DR4:SF8BW500) and EU(DR6:SF7BW250,DR7:FSK)
• setTxDatarate accepts values US(0-4,8-13) and EU(0-7) for datarates listed in LoRaWAN

Bugfixes¶

• SNR - reports correct value in cB
• NewChannelReq - disable channel when freq = 0
• Reset server ACK requested on txdone
• SxRadio - increase FSK rx timeout
• Use radio random to seed psuedo rand function in LoRaMac
• 868 optional channels in join accept message received as LSB
• Update downlink counter only if mic passes
• Save timer value to temp variable, addresses race condition that led to MAX_INT wait times [IN:001725]
• Power adjustments of txPower as radio output and antenna gain accounted for
• Removed redundant max payload size check at 242
• Mac timers start on Wakeup [IN:001719]

Known Issues¶

0.0.9¶

Changes¶

Bugfixes¶

• Response for US915 - DR4 fixed
• check the duty-cycles and enable and expired duty cycles before looking for free channel.
• [1415] +TXN may return very large number
• added channels to the session to be restored after sleep in AUTO OTA mode.
• Start uplink counter at 0
• Sequence number no longer increases by 2 when acks are off
• [1417] Duty cycle elapsed time was doubled across sleep

Known Issues¶

0.0.8¶

Changes¶

Bugfixes¶

• Session is reset on power-on/reset
• Join stats are now counted on successful join
• US915 - rx1 datarate for high bandwidth channel
• AUTO OTA link check off by one
• AUTO OTA link count is saved over sleep
• AUTO OTA US915 frequency sub-band is saved over sleep

Known Issues¶

• Response for US915 - DR4 does not follow Table 22: Data rate mapping in LoRaWAN r1.0
  

0.0.7¶

Changes¶

• Sleep mode
  • added sleep mode
  • added wake mode, interval, delay and timeout settings for sleep mode
• User file storage, up to 4 user file may be open at a time
  • added save, append, read, move, delete options for files
  • added open, seek, read, write and close options for files
  • added firmware upgrade from user file

Bugfixes¶

• EU868 duty cycles, check for spurious wake-ups

Known Issues¶

• US915 sending using highBW option requires txDatarate to be set to SF_8 to receive response
• LinkCheckThreshold check is off by one when using ACK's require one extra packet to detect network loss