RAIL Changelist - v2.11 - RAIL API Documentation Silicon Labs

2.11.2

274536: Added a new RAIL_ConfigDirectMode() API for configuring direct mode settings on all chips. This can set whether the data stream is synchronous or asynchronous and which GPIOs are used for the feature.
671651: Fixed timing problems with certain State Transitions or RX Channel Hopping delay values on the EFR32xG22 and newer parts.
714271: Fixed an issue where RAIL_IEEE802154_Config2p4GHzRadio*() and RAIL_IEEE802154_ConfigGB*Radio() functions were improperly clearing or setting certain RAIL_IEEE802154_EOptions_t . Also documented that these functions still implicitly clear or set certain RAIL_IEEE802154_GOptions_t suitable for that configuration.
715123: Added PA curves for EFR32XG23 for HP, MP, LP and LLP modes for both 14dBm and 20dBm variants.
716369: Fixed an issue where incorrect radio transition times were being applied at higher temperatures when using the high power PA on EFR32xG22 parts.
720948: Added a new RAIL_RxDataSource_t to capture direct mode data on supported devices.
735862: Now when using a RAIL_RxDataSource_t other than RX_PACKET_DATA the receiver will be disabled any time a RAIL_EVENT_RX_FIFO_OVERFLOW occurs and need to be manually restarted. If the RAIL_EVENT_RX_FIFO_OVERFLOW event is not enabled then the receiver will continue to run and lose some amount of data until the buffer is processed which matches the old behavior.

2.11.1

646980: An attempt to use an unsupported built-in radio channel configuration, e.g. on a module that does not support that protocol or configuration, will now trip RAIL_ASSERT_FAILED_INVALID_CHANNEL_CONFIG rather than returning success and ignoring the configuration.
675252: Fixed an antenna diversity regression where a transmitted auto- ACK would incorrectly go out the currently configured TX antenna rather than the antenna used to receive the packet being acknowledged.
676896: Fixed an issue in OOK PHYs where dynamic adjustments made to receive a packet with a high RSSI could persist after the packet and decrease the ability to receive packets with a lower RSSI.
696198: Fixed an issue on PHYs that do not support dual sync words. If RAIL_RX_OPTION_ENABLE_DUALSYNC is called when one of these PHYs is loaded the RAIL_ConfigRxOptions function will now return RAIL_STATUS_INVALID_PARAMETER .
697097: Fixed a rare situation where a premature RAIL_EVENT_TX_BLOCKED event might occur when auto-ACK is enabled and a scheduled transmit using RAIL_SCHEDULED_TX_DURING_RX_ABORT_TX is pending when an erroneous packet is received.
700439: Fixed an issue where configuring a Selective RF Sense Wakeup packet by calling RAIL_ConfigRfSenseSelectiveOokWakeupPhy followed by RAIL_SetRfSenseSelectiveOokWakeupPayload would put RAIL in fixed length mode and leave it there even after a new PHY was loaded. We will now revert the fixed length settings to their default when loading a new PHY after the Selective RF Sense Wakeup PHY was loaded so that the incoming PHY's settings are used.
710273: Fixed an issue using RAIL_TX_REPEAT_OPTION_HOP with RAIL_SetNextTxRepeat() or RAIL_BLE_SetNextTxRepeat() when they return an error found in the channel-hopping configuration, yet would still attempt to repeat the next transmit anyway.
710983: Added the new RAIL_STREAM_CARRIER_WAVE_PHASENOISE RAIL_StreamMode_t for phase noise measurement.
719194: Added RAIL_PA_BAND_COUNT to count RAIL_PaBand_t.

2.11.0

369712: Added RAIL_StartScheduledCcaCsmaTx and RAIL_StartScheduledCcaLbtTx APIs to allow applications to schedule a CSMA/LBT transmit.
456701: Fixed an issue on EFR32xG1x parts where calling RAIL_Init() with the MSC->CTRL.CLKDISFAULTEN bit set would cause a bus fault.
524885: Added support for a new RAIL_EVENT_ZWAVE_LR_ACK_REQUEST_COMMAND , triggered on the reception of a Z-Wave Long range packet with acknowledgement request bit set, following which the application must call RAIL_ZWAVE_SetLrAckData to populate the fields of the Z-Wave Long range acknowledgement packet.
626961: Add support for the RAIL_TX_POWER_MODE_*_HIGHEST options in the RAIL_GetTxPowerCurve() function.
654600: On EFR32XG21, a watchdog has been added to terminate an RSSI averaging operation in case the RAIL_EVENT_RSSI_AVERAGE_DONE event does not occur.
655541: Fixed an issue on EFR32XG22 and later where packet filtering might be incomplete in FEC-enabled radio configurations causing good packets to be improperly dropped. Note that if packet filtering fails close to the end of an otherwise successfully received packet, the packet may be flagged RAIL_RX_PACKET_READY_CRC_ERROR rather than RAIL_RX_PACKET_ABORT_FILTERED . This issue is still possible on earlier chips due to hardware filtering restrictions.
660021: Changed when RAIL_EVENT_IEEE802154_DATA_REQUEST_COMMAND event is issued to better facilitate support for 802.15.4E-2012 Enhanced ACKing and reduce time spent in the event handler. The event is now issued after receiving the Auxiliary Security Header (if present) in the MAC Header of the incoming frame, and for MAC Command frames, after receiving the MAC Command byte (which may be encrypted). This change is not backwards compatible with prior releases for Enhanced ACK requesting frames, but is for Immediate ACK requesting frames. Use of RAIL_IEEE802154_EnableEarlyFramePending() is no longer required to support Enhanced ACKing; the notion of early frame pending notification has also shifted to after the Auxiliary Security Header for Enhanced ACK requesting frames.
661651: Changed RAIL Timer Synchronization over sleep on the EFR32xG21 to use the RTCC instead of the PRORTC to reduce current consumption in EM2.
665705: Fixed an issue where a transmit with RAIL_TX_OPTION_SYNC_WORD_ID 1 to use SYNC2 would improperly indicate SYNC1 was used in the packet trace appended information.
666275: Fixed potential delays when using RAIL's channel hopping or duty cycling features in EM1P mode on the EFR32xG22 and newer parts.
667103: Fixed RAIL_ReadRxFifo() to behave as documented when passed NULL dataPtr: the data is thrown away rather than copied out.
671817: Fixed an issue when switching between certain radio configurations (e.g. Z-Wave) where use of RAIL_TX_OPTION_REMOVE_CRC can become permanently stuck.
673333: Fixed an issue with RAIL_TX_OPTION_WAIT_FOR_ACK transmits where an RX overflow during the ACK wait period would silently abort the ACK timer resulting in no RAIL_EVENT_RX_ACK_TIMEOUT being generated.
681133: Added RAIL_TX_OPTION_RESEND to allow re-transmitting the packet most recently loaded into the Transmit FIFO. This can be used in combination with RAIL_SetNextTxRepeat() on supported platforms to repeatedly transmit the same packet.
681135: Added new RAIL_SetNextTxRepeat() API and RAIL_TxRepeatConfig_t to allow configuration of repeated transmits triggered by an initial transmit.
681136: Added ability to configure TxToTx state transition time via RAIL_StateTiming_t::txToTx and RAIL_SetStateTiming() . This time is generally used between an autoACK transmit and a user transmit that was pending. It's also used during repeated transmits by default, but can be overridden by the RAIL_TxRepeatConfig_t::delayOrHop or RAIL_BLE_TxRepeatConfig_t::delayOrHop configuration.
681141: Added ability to hop channels during repeated transmits in RAIL_TxRepeatConfig_t using RAIL_TX_REPEAT_OPTION_HOP .
681143: Added BLE-specific hooks for repeated transmits with channel hopping in RAIL_BLE_SetNextTxRepeat() and RAIL_BLE_TxRepeatConfig_t .
682032: Fix an issue where setting RAIL_SCHEDULED_TX_DURING_RX_ABORT_TX for a scheduled transmit could cause subsequent non-scheduled transmits to be blocked.
695484: The posting of RAIL_EVENT_TX_ABORTED now occurs before the PA ramps down, at the same time other transmit completion events get posted.
696665: Fixed an issue in RAIL_ConvertRawToDbm for PAs which use piecewise-linear line segment fit, where the minimum raw power level was incorrectly compared to the minimum deci-dBm value.
697097: Fixed a rare situation where a premature RAIL_EVENT_TX_BLOCKED event might occur when auto-ACK is enabled and a scheduled transmit using RAIL_SCHEDULED_TX_DURING_RX_ABORT_TX is pending when an erroneous packet is received.
699890: Fixed missing C++ compatibility in the Initialization Utility component's generated header file.
701604: Fixed an issue where using RX Channel Hopping with channels in different frequency bands would cause RAIL to assert.
703788: Fixed an issue on EFR32xG2x devices where RAIL would not allow you to initialize the radio with voltage scaling enabled even though this is supported on these devices.
705595: Fixed an issue where custom PA curves provided through the PA Module were not respected when building Silicon Labs Zigbee applications.
705802: Allow RAIL_ZWAVE_ReceiveBeam to be run on US LR regions instead of always returning an error.
706542: The Callbacks Utility component can now be configured to not provide the RAILCb_AssertFailed() function for situations where the application wants to provide its own implementation.
708511: Fixed possible RAIL_ASSERT_FAILED_UNEXPECTED_STATE_TX_FIFO when RAIL_SetTxFifo() is called after the transmit FIFO had been filled enough to cause its write offset to wrap.

2.10.2

652028: If the selected RAIL_TxPower_t is not supported by the chip, then by default RAIL_TX_POWER_MODE_2P4_HIGHEST is chosen as the power mode.
666275: Fixed potential delays when using RAIL's channel hopping or duty cycling features in EM1P mode on the EFR32xG22 and newer parts.
666917: Previously runtime configuring the Zigbee coexistence PHY select timeout to 255 ms would only guarantee 255 ms on the coexistence optimized PHY. Now the coexistence optimized PHY will be selected indefinitely after runtime configuring the coexistence PHY select timeout to 255 ms.
667555: Fixed an issue with the Front End Module (FEM) Utility component where it would generate an error if the Rx pin was not required and turned off by the user.
669697: Updated the configuration libraries on BGM210PB22JIA and BGM210PB32JIA modules to fix issues using these parts in the field.
671817: Fixed an issue when switching between certain radio configurations (e.g. Z-Wave) where use of RAIL_TX_OPTION_REMOVE_CRC can become permanently stuck.
672904: The minimum and maximum power levels for BGM220P and BGM220SC modules are updated to be 0 and 15 respectively.
672909: Fixed an issue with PA auto mode where it might try to use a RAIL_TxPowerMode_t that is not valid for the current part.
673246: A multiprotocol scheduled receive with a relative start time and an absolute end time now respects that end time regardless of when the receive actually starts. Before, the end time was made relative and pushed out based on the actual start time to keep the receive window the same width in duration. This is a backwards-incompatible change, but should align better with what users expected when specifying an absolute end time.
684407: Fixed an issue where calling RAIL_ConfigAntenna() on EFR32xG22 and newer devices could fault if the GPIO block clock was not explicitly enabled beforehand.
687455: Fixed the conversion of power level to dBm to fetch correct values for BGM220P and BGM220S modules when using the RAIL_TX_POWER_MODE_2P4GIG_HP power mode and power levels above the maximum.

2.10.1

635037: Added support on the EFR32xG22 parts for a new BLE PHY that can receive 1Mbps and LR Coded packets simultaneously. See RAIL_BLE_ConfigPhySimulscan() .
652969: Restored automatic IR calibration on EFR32xG22 at RAIL_Init() time.
653955: Fixed an issue when using the Coexistence Utility component where PWM was enabled if SL_RAIL_UTIL_COEX_PWM_DEFAULT_ENABLED was set, even if SL_RAIL_UTIL_COEX_PWM_REQ_ENABLED was disabled. Now SL_RAIL_UTIL_COEX_PWM_DEFAULT_ENABLED is ignored when SL_RAIL_UTIL_COEX_PWM_REQ_ENABLED is disabled.
654726: Fixed an issue where antenna diversity was not being enabled on EFR32xG1x devices when configured through the Antenna Diversity Utility component.
656175: Fixed an issue where any RAIL_ChannelConfigEntry_t in a RAIL_ChannelConfig_t with a maximum power less than 0 dBm would be stuck at the maximum power no matter what power was requested.
663815: Fixed an issue when using the Antenna Diversity Utility component where moving from TX antenna mode HAL_ANTENNA_MODE_ENABLE2 to HAL_ANTENNA_MODE_DIVERSITY would cause the antenna selection to get stuck on antenna 2.
665161: Fixed an issue on EFR32xG22 and later PTI where the network analyzer could misrepresent the RSSI of incoming packets.

2.10.0

244222: Added support for reporting more detailed transmit errors on the Packet Trace Interface (PTI).
318768: Added new API RAIL_GetRadioStateDetail that provides more detailed radio state information than RAIL_GetRadioState .
362133: The default RSSI offset on the EFR32xG1, EFR32xG12, EFR32xG13, EFR32xG14, and EFR32xG21 chips does not compensate for a known internal hardware offset. This offset is chip specific and can be found using the new Received Signal Strength Indicator (RSSI) Utility component which will load the correct value for your chip by default when the RSSI Offset component or Hardware Configurator peripheral is enabled. Since the hardware and antenna design can also impact this offset it is recommended that you measure this value for your particular hardware for the best accuracy. This correction is not enabled by default on the chips listed above to prevent changing radio behavior significantly without the user opting into this change. For the EFR32xG22 and future chips the hardware offset is measured and included by default. Please be aware that if any prior CCA token modifications have been made to modify the threshold for CSMA/LBT transmits, adding an RSSI Offset value could reduce or prevent TX.
446308: Updated RAIL_ZWAVE_ReceiveBeam() to automatically idle the radio when RAIL_ZWAVE_ReceiveBeam() finishes even when no beam is detected.
451099: Added the ability to use the Initialization Utility component multiple times when creating a multiprotocol application.
471715: Fixed an issue when using RAIL_ConfigAntenna() on the EFR32xG22 with an RF path other than 0 since these parts do not have multiple RF paths.
478948: Added RAIL_RxPacketInfo_t::filterMask field of type RAIL_AddrFilterMask_t which is a bitmask representing which address filter(s) the packet has passed.
493557: Added the ability for RAIL_GetRssi() to wait for a valid RSSI in radio states that are transitioning into RX. Additionally, a maximum wait timeout for a valid RSSI can be configured using the new API RAIL_GetRssiAlt() .
494571: Added a new RAIL_ZWAVE_ConfigRxChannelHopping() API to configure Z-Wave Rx channel hopping using the recommended hopping parameters.
494571: Added a new RAIL_ZWAVE_GetRegion() API to determine the currently selected Z-Wave region.
495497: Changed RAIL_PacketTimeStamp_t::totalPacketBytes from uint32_t to uint16_t to reduce RAM usage.
497196: The Initialization Utility component now defaults most options to a disabled state, instead of enabled. Now you have to opt-in, instead of opt- out, of RAIL init functionality.
501510: Added a new RAIL_SupportsTxPowerModeAlt() API to get the minimum and maximum power levels for a specific power mode if the power mode is supported by the chip.
519195: The EFR32xG21 will now use RTCC channel 0, as opposed to the PRORTC, to perform sleep timer synchronization. This will help lower the EM2 current consumption for this chip.
519288: The Power Amplifier (PA) Utility component now enables PA calibration by default to ensure that PA power remains consistent chip-to-chip.
520521: Added a new API RAIL_SetAddressFilterAddressMask() that allows for setting a bit mask pattern for packet data in the address filters.
520937: Add new RAIL_EVENT_RF_SENSED as an alternative to the current RAIL_StartRfSense() callback parameter.
520943: Added a new API RAIL_ConfigSleepAlt() to allow configuring the PRS channel, RTCC channel, and whether sleep is enabled in one call.
524046: Added support for MGM210PB22JIA, MGM210PB32JIA, BGM210PB22JIA and BGM210PA32JIA modules.
580312: Created a new Protocol Utility component for setting up RAIL to use one of the standards based PHYs by default.
630457: On custom boards, the Packet Trace Interface (PTI) Utility component no longer reserves pins for use without being configured.
632723: The EFR32xG22 will limit going to EM1P sleep mode when an 80MHz HRFRCO PLL system clock is selected. Going to EM1P sleep is not supported when using the DPLL on this hardware as it can cause clock drift which would impact radio timing and tuning.
635237: Added an event RAIL_EVENT_PA_PROTECTION to indicate the power protection circuit has kicked in.
638067: Fixed a DMP issue that poached transmit power when switching between protocols using the same channel configuration and channel.
638239: Created a Callbacks Utility component for application- level callbacks.
639833: Fixed a potential radio hang on a corrupted BLE packet when doing BLE AoX.
642893: Reduced RAIL library flash data alignment needs on the EFR32xG22.
645641: Fixed an EFR32xG22 issue where a state transition to receive after a transmit from EM2 sleep would drop packets.
650072: In multiprotocol RAIL, when the supplied handle is not the active handle, RAIL_GetRadioState now returns RAIL_RF_STATE_RX rather than RAIL_RF_STATE_IDLE if a background receive is currently scheduled.

2.9.2

501674: Reduced the time from last modulated bit on air to ramp down on EFR32xG1x devices.
623922: Fix to set the right power on EFR32xG21 when the PA uses VDD around 1.8V.

2.9.1

493409: Fixed an issue where output power might not be set correctly when changing frequency bands within one channel configuration.
497061: Corrected an issue on EFR32xG1x chips where specifying a large ramp time could erroneously add extra delay to a transmit.
519195: EFR32xG21 will now use RTCC channel 0, as opposed to the PRORTC, to perform sleep timer synchronization. This will help lower the EM2 current consumption for this chip.
524046: Added support for MGM210PB22JIA, MGM210PB32JIA, BGM210PB22JIA and BGM210PA32JIA modules.

2.9.0

204557: Added support for setting the default value of the FramePending bit in outgoing IEEE 802.15.4 data poll ACKs to true. This means that the user would then be responsible for clearing this bit in the frame pending callback instead of having it default to cleared and having to set it. See the RAIL_IEEE802154_Config_t::defaultFramePendingInOutgoingAcks field for configuring this feature.
298829: Added a new API RAILCb_ConfigSleepTimerSync() to allow for configuration of the PRS and RTCC channels used for timer sync operations.
300348: Added support for a new RAIL_EVENT_SCHEDULED_RX_STARTED and RAIL_EVENT_SCHEDULED_TX_STARTED , triggered when a scheduled receive or transmit begins. These are the same value because a scheduled receive and transmit cannot occur at the same time. Note: This new event shifted the bit positions of some events in RAIL_Events_t .
381485: Provided new RAIL_RX_CHANNEL_HOPPING_MODE_MULTI_SENSE along with RAIL_RxChannelHoppingConfigMultiMode_t to configure its parameters. This mode can be configured to tolerate brief loss of timing and/or preamble making it less susceptible to hopping than the single-sense modes. It can also be used with RX duty cycling.
402203: Provided new RAIL_RX_CHANNEL_HOPPING_OPTION_RSSI_THRESHOLD to augment each of the RAIL_RxChannelHoppingMode_t modes with one RSSI Threshold check on entering receive for the channel. If the RSSI is below that specified by RAIL_RxChannelHoppingConfigEntry_t::rssiThresholdDbm then hop (or if below RAIL_RxDutyCycleConfig_t::rssiThresholdDbm , suspend RX). RAIL_RxDutyCycleConfig_t has been augmented not only with this new field, but also now includes RAIL_RxDutyCycleConfig_t::options field. For those options to be recognized by RAIL_ConfigRxDutyCycle() (due to backwards compatibility) RAIL_RxDutyCycleConfig_t::mode must be one of the new WITH_OPTIONS modes, e.g. RAIL_RX_CHANNEL_HOPPING_MODE_TIMEOUT_WITH_OPTIONS .
411017: Relax constraints in RAIL to allow calling RAIL_SetRxTransitions , RAIL_SetTxTransitions , RAIL_ScheduleRx , and all of the RAIL_BLE_ConfigPhy functions before the radio is completely IDLE.
414398: Added support for the Silicon Labs Power Manager component. When enabled via RAIL_InitPowerManager() RAIL will communicate directly with the power manager to configure sleep modes. See the Sleep section for more documentation.
429513: Added support for RAIL's FrameType based length on the EFR32xG22.
442248: Updated the pa_customer_curve_fits.py helper script to work with Python 3 as well as Python 2.
442978: Changed pa_customer_curve_fits.py to take maxpower as a parameter to generate better curves. When maxpower and increment are different than the defaults they will now be included in the output curve. The current power curve limits can be read at runtime from the new RAIL_GetTxPowerCurveLimits API.
450750: The RAIL_GetRadioEntropy() API will now ensure a valid radio configuration has been loaded using RAIL_ConfigChannels() since it can cause problems if the radio is used before this.
454096: Updated the function RAIL_GetRxPacketDetailsAlt to return the time position of the received packet timestamp corresponding to the default location in the packet.
454096: Added a new function, RAIL_GetTxPacketDetailsAlt2 , which allows a RAIL_TxPacketDetails_t structure to be passed as an argument.
454096: Added a new function, RAIL_GetTxTimePreambleStartAlt , which allows a RAIL_TxPacketDetails_t structure to be passed as an argument.
454096: Added a new function, RAIL_GetTxTimeSyncWordEndAlt , which allows a RAIL_TxPacketDetails_t structure to be passed as an argument.
454096: Added a new function, RAIL_GetTxTimeFrameEndAlt , which allows a RAIL_TxPacketDetails_t structure to be passed as an argument.
456338: Fixed an issue with RAIL state transitions where an internal timer wrapping could cause incorrect transition times. This error would previously affect at most one packet every 15 minutes.
459581: Fixed an issue with the EFR32xG21 medium power PA that could cause the output power to be too low for certain power level and ramp time combinations.
464534: Fixed issue where RAIL_StartAverageRssi() ran twice as long as it should have.
464734: Regenerated the power curves for the EFR32xG22 to allow access to the maximum power level available on the chip.
464735: Closed tiny timing window on EFR32xG13 that might corrupt PTI appended info when idling the radio.
465096: Fixed an issue where RAIL_Idle() was not properly terminating an ongoing RAIL_StartAverageRssi() process.
465220: Bluetooth Angle of Arrival and Angle of Departure support has been removed from the EFR32xG13 chip. For future usage of this feature please look to the EFR32xG22.
466012: Fixed an issue where the CRC could be disabled indefinitely on transmit when switching configs in a multiphy setup.
474678: Fixed an issue with duty cycle receive and channel hopping on the EFR32xG1x parts where some parts of the radio would be left on even with long delay parameters causing extra current to be used. This allows for a noticeable improvement in power consumption when using the RAIL_ConfigRxDutyCycle() API with delays of more than a hundred microseconds.
475184: Fixed an issue on the EFR32xG22 where the receiver was not automatically re-calibrated if the temperature changed significantly while sitting in receive. This could cause the radio to go off channel for significant temperature changes resulting in receive problems.
477621: Improved frequency accuracy on EFR32xG1x devices when the radio configuration has an entry with a large number of channels. Previously, small errors in the channel spacing calculation could exist. If they did, then when computing the channel frequency this error would be multiplied by the channel number minus the start channel for that entry causing some drift for higher order channels. This was not much an issue in most cases, but for certain PHY and crystal combinations it could be worse.
477833: Some radio configurations on the EFR32XG22 are not usable with RAIL address filtering and RAIL 802.15.4 filtering. Add an assert to catch those cases.
479539: Fixed a bug where the RAIL_ConfigTxPower() would override the PA capacitor tuning values for transmit and receive without caching them. In a multiprotocol scenario this could cause us to apply incorrect PA capacitor tuning values set prior to a call to RAIL_ConfigTxPower . Note that you must still call RAIL_SetPaCTune after any making any changes to the power configuration via RAIL_ConfigTxPower .
479665: Fixed an issue where RAIL_SetRxFifo() would not reject a buffer smaller than 64 bytes and would mistakenly think it is very big.
In addition, RAIL_ASSERT_FAILED_RX_FIFO_BYTES can no longer occur with a 64 byte buffer when doing IR calibration.
482007: Fixed a bug in multiprotocol RAIL where running an IR calibration during a protocol switch would fail. The calibration function will now return RAIL_STATUS_INVALID_STATE if called in such a scenario.
483688: Fixed an issue where the power mode selected when using RAIL_TX_POWER_MODE_2P4GIG_HIGHEST on supported chips was not saved in a multiprotocol context and could cause problems.
484374: Fixed regression from 2.8.1 on EFR32xG21 where Bluetooth LE did not include packet sync word on PTI.
488752: Fixed an issue with MGM1x and BGM1x modules that caused PHY changes to be slower than when using stand alone parts. This could cause problems in certain BLE or DMP use cases where reconfiguration time is critical.
489214: Fixed an issue where calling RAIL_IEEE802154_CalibrateIr2p4Ghz , RAIL_IEEE802154_CalibrateIrSubGhz , or RAIL_BLE_CalibrateIr with a NULL imageRejection parameter would result in a crash.

2.8.10

456701: Fixed an issue on EFR32xG1x parts where calling RAIL_Init() with the MSC->CTRL.CLKDISFAULTEN bit set would cause a bus fault.
702377: The GB868 PHYs have been modified to improve performance for the EFR32xG1, EFR32xG12, EFR32xG13 and EFR32xG14.

2.8.9

645641: Fixed an issue on EFR32xG22 where a state transition to receive after a transmit from EM2 sleep would drop packets.
661651: Changed RAIL Timer Synchronization over sleep on the EFR32xG21 to use the RTCC instead of the PRORTC to reduce current consumption in EM2.
671168: Fixed an issue on EFR32xG22 parts where current consumption would be higher than expected after radio activity.

2.8.8

639833: Fixed a potential radio hang on a corrupted BLE packet when doing BLE AoX.

2.8.7

499216: Fixed an issue with the EFR32xG21 medium power PA that could cause the output power to be too low for certain power level and ramp time combinations.
499366: Added support for new BGM220 modules.

2.8.6

477833: Some radio configurations on the EFR32XG22 are not usable with RAIL address filtering and RAIL 802.15.4 filtering. Add an assert to catch those cases.
484374: Fixed regression from 2.8.1 on EFR32xG21 where BLE did not include packet sync word on PTI.

2.8.4

344182: Added new RAIL_BLE_ConfigAoxAntenna API to configure which GPIO pins are used for BLE AoX.
411017: Relax constraints in RAIL to allow calling RAIL_SetRxTransitions , RAIL_SetTxTransitions , RAIL_ScheduleRx , and all of the RAIL_BLE_ConfigPhy before the radio is completely IDLE
465096: Fixed an issue where RAIL_Idle() was not properly terminating an ongoing RAIL_StartAverageRssi() process.
467589: Updated default dynamic multiprotocol (DMP) transition timings to make them work with Zigbee and BLE DMP applications work. The previously suggested workaround of adding 30 us to the default transition time using RAIL_SetTransitionTime() is no longer required.
471373: Fixed an issue on the EFR32xG22 where loading IEEE 802.15.4 and BLE PHYs without a reset would cause an assert with error code RAIL_ASSERT_CACHE_CONFIG_FAILED.
471955: Fixed an issue with BGM220 modules that caused an assert, RAIL_ASSERT_INVALID_MODULE_ACTION, when using them in previous releases.

2.8.3

387749: Revamped Features and rail_features.h , providing runtime RAIL_SupportsSomeFeature() APIs for each of the features as some features may be restricted to certain chips within a family. Also added more consistent RAIL_SUPPORTS_ compile-time synonyms for the features while retaining the existing RAIL_FEAT_ defines for backwards compatibility. These defines can now be used in C code and not just preprocessor #if statements.
442248: Updated the pa_customer_curve_fits.py helper script to work with Python 3 as well as Python 2.
464735: Closed tiny timing window on EFR32xG13 that might corrupt PTI appended info when idling the radio.
464774: * Calling RAIL_ConfigSleep() with RAIL_SLEEP_CONFIG_TIMERSYNC_ENABLED on chips that use the PRORTC for synchronization (EFR32xG13 and newer) will now only configure the choose the LF clock source if the PRORTC IRQ is disabled. This allows for other code to safely configure the PRORTC like the Silicon Labs generic sleep timer.
466396: Added support for new BGM220 modules.
469015: Fixed an issue on the EFR32xG21 that could cause the RAIL_GetRadioEntropy() function to return the same first 4 bytes when called with the radio off after a reset.

2.8.2

456338: Fixed an issue with RAIL state transitions where an internal timer wrapping could cause incorrect transition times. This error would previously affect a maximum of one packet every 15 minutes.
460062: Fixed a RAIL_ScheduleRx() issue where RAIL_EVENT_RX_SCHEDULED_RX_END might not be posted when the Rx RAIL_StateTransitions_t::error transition is to RAIL_RF_STATE_IDLE and the Rx window ended during receipt of an erroneous packet.

2.8.1

251720: Added the new RAIL_STREAM_10_STREAM RAIL_StreamMode_t to allow you to send a 1010 stream for debugging.
316106: Added a new function, RAIL_StartTxStreamAlt , which allows the specific antenna to be specified for a stream transmit.
383197: Added new RAIL_RX_PACKET_HANDLE_OLDEST_COMPLETE packet handle to allow the user to get a reference to the oldest unreleased complete packet.
435689: Added a new External Thermistor interface to RAIL. This allows access the user to connect and read the impedance of an external thermistor on supported chips.
444205: Fixed a transmit-from-idle issue with RAIL_StartCcaCsmaTx() or RAIL_StartCcaLbtTx() which would always fail when the RAIL_StateTiming_t::idleToRx is configured below the minimum the radio is capable of achieving (typically 65-100 microseconds depending on platform).
450750: The RAIL_GetRadioEntropy() API will now ensure a valid radio configuration has been loaded using RAIL_ConfigChannels() since it can cause problems if the radio is used before this.
452628: Fixed an issue where idling the radio from an Rx antenna diversity mode would consume extra power.
452690: Fixed an issue where Rx antenna diversity could be left enabled after switching to a radio configuration that lacks diversity support.
455495: Added RAIL_IEEE802154_ConvertRssiToEd() and RAIL_IEEE802154_ConvertRssiToLqi() to assist Zigbee 802.15.4 certification testing.
456225: Changed the value of RAIL_FREQUENCY_OFFSET_INVALID from -1 to -32768 since -1 is a reasonable frequency offset to pass to RAIL_SetFreqOffset() . Also added convenience definitions RAIL_FREQUENCY_OFFSET_MIN and RAIL_FREQUENCY_OFFSET_MAX to specify the valid range of offset values the radio supports.

2.8.0

197573: Suppressed extraneous RAIL_EVENT_TX_START_CCA events that might occur during long CCA durations. Now only one such event should occur per CCA try.
295265: Added two new APIs, RAIL_GetSyncWords and RAIL_ConfigSyncWords() , to allow getting and setting the sync word configuration of your PHY at runtime.
301472: On EFR32xG12 thru EFR32xG14, added support for 802.15.4G-2012 SUN PHY dynamic frame payload whitening on reception and transmit based on the PHY header's Data Whitening flag setting. This feature is automatically enabled when RAIL_IEEE802154_ConfigGOptions() ' RAIL_IEEE802154_G_OPTION_GB868 is enabled, and assumes the radio configuration specifies the appropriate whitening algorithm and settings.
301488: On EFR32xG12 thru EFR32xG14, added support for 802.15.4G-2012 SUN PHY dynamic frame payload 2/4-byte FCS (CRC) on reception and transmit based on the PHY header's FCS Type flag setting. This feature is automatically enabled when RAIL_IEEE802154_ConfigGOptions() ' RAIL_IEEE802154_G_OPTION_GB868 is enabled. The radio configuration's (single) CRC algorithm settings are ignored, overridden by RAIL.
301501: On EFR32xG12 thru EFR32xG14, 802.15.4 AutoACK behavior has also been updated so transmitted immediate ACKs reflect the Whitening and 2/4-byte FCS of the received frame being acknowledged.
369722: Added RAIL_TX_OPTION_CCA_ONLY to just perform CCA (CSMA/LBT), stopping short of automatically transmitting when the channel is clear.
369727: Added support for a new RAIL_EVENT_TX_STARTED , triggered when the first preamble bit is about to go on-air. Also included the ability to retrieve the equivalent RAIL_PACKET_TIME_AT_PREAMBLE_START timestamp of that event from the event's handler via RAIL_GetTxTimePreambleStart() . Note: This new event shifted the bit positions of some events in RAIL_Events_t .
369727: Also changed RAIL_GetRxTimePreambleStartAlt() , RAIL_GetRxTimeSyncWordEndAlt() , and RAIL_GetRxTimeFrameEndAlt() to properly update its pPacketDetails' RAIL_PacketTimeStamp_t::timePosition to reflect the adjusted RAIL_PacketTimeStamp_t::packetTime rather than leaving it as RAIL_PACKET_TIME_DEFAULT .
384878: Clarified documentation of the RAIL_EVENT_RX_ACK_TIMEOUT event and RAIL_AutoAckConfig_t::ackTimeout period which extends only to packet sync word detection of an expected ACK, not packet completion of that ACK.
397072: Added an API, RAIL_StopInfinitePreambleTx , that can stop an infinite preamble on PHYs configured to use infinite preambles.
402991: Added additional information to the packet trace stream for the Z-Wave protocol to indicate what region is currently active to help with decoding.
406080: Added support for RFSENSE Selective (OOK) mode for supported chips, which currently includes only EFR32xG22 devices. Please refer to RAIL internal chip specific documentation for more details.
406871: Documented RAIL's internal 16-packet metadata FIFO which exists on EFR32 platforms supplementing the receive FIFO of packet data. Refer to Data Management and EFR32 for details. Included is support for a new RAIL_EVENT_RX_FIFO_FULL , triggered with any packet completion event in which the receive FIFO or packet metadata FIFO are full. This tells the application it must free up the oldest packets/data ASAP to reduce the chance of RAIL_EVENT_RX_FIFO_OVERFLOW (however, overflow may already have occurred). Note: This new event shifted the bit positions of some events in RAIL_Events_t .
411498: RAIL_StartAverageRssi() now returns RAIL_STATUS_INVALID_STATE if called when the radio is not idle, enforcing its documented behavior.
414114: Added a new PA mode which will attempt to automatically choose the PA which consumes the least amount of current to reliably produce the requested output power. See RAIL_EnablePaAutoMode() for details.
417340: Fixed an issue where RAIL_RxPacketDetails_t::isAck would incorrectly be set true for non-ACK or unexpected ACK packets received successfully (e.g. when RAIL_IEEE802154_ACCEPT_ACK_FRAMES is enabled) or aborted while waiting for the expected ACK. Note that when RAIL_RX_OPTION_IGNORE_CRC_ERRORS is in effect, an expected ACK includes one that fails CRC, and will have isAck set true.
418493: RAIL_ConfigRadio will now return RAIL_STATUS_INVALID_STATE if called from the inactive config in dynamic multiprotocol instead of returning success but not applying the change.
427934: Fixed a race condition that could cause a device to not re- enable frame detection after an Rx overflow event if the overflow was processed and cleared very quickly.
430026: Enforced and clarified that RAIL_Init() should not be called more than once per protocol.
430081: Fixed an issue where the first Clear Channel Assessment (CCA) of a CSMA/LBT transmit from radio idle state would consistently fail when the RAIL_CsmaConfig_t::ccaBackoff or RAIL_LbtConfig_t::lbtBackoff time is smaller than the RAIL_StateTiming_t::idleToRx time.
436163: Fixed a post-receive transition timing issue for received packets that were on the air longer than 32 milliseconds. AutoACK turnaround timing should now behave properly at low data rates.
437054: Fixed an issue with the pa_customer_curve_fits.py that caused values below -12 to not be considered when computing the fit. Re-generated default, Silicon Labs-provided curves to consume this fix, resulting in minor changes to the lowest-power segment in curve-fit based PA's. If using a custom power curve created using the documentation in AN1127 customers should re-run the script on the already collected output data to get slightly more accurate curves.
441635: Return the correct RAIL_TxPowerMode_t value of RAIL_TX_POWER_MODE_NONE from RAIL_GetTxPowerConfig if called before RAIL_ConfigTxPower.
446289: Fixed RAIL_IDLE_ABORT to idle the radio sooner when in RAIL_RF_STATE_RX , especially now that RAIL_RxChannelHoppingConfigEntry_t::delay can extend the time in that state.
447578: Fixed an issue where setting a transmit power over the maximum allowed for a given channel would result in no change in the output power instead of using the maximum allowed value.
450187: Fixed an issue where calling RAIL_Idle() with RAIL_IDLE_FORCE_SHUTDOWN while in receive with channel hopping enabled could corrupt some internal channel hopping state and trigger a bus fault or other radio problems.

2.7.4

436215: Fixed an issue on the EFR32xg13 parts that caused the 2Mbps BLE IFS time to be incorrect when receiving very short packets.
443144: Fixed the module specific config libraries for the xGM210xA modules: BGM210LA22JIF, BGM210LA22JNF, BGM210PA22JIA, BGM210PA22JNA, BGM210PA32JIA, BGM210PA32JNA, MGM210LA22JIF, MGM210LA22JNF, MGM210PA22JIA, MGM210PA22JNA, MGM210PA32JIA, MGM210PA32JNA. Without this change these modules would assert with RAIL_ASSERT_INVALID_MODULE_ACTION.

2.7.3

425464: Improved interoperability with many common devices for the 1Mbps Viterbi BLE PHY on the EFR32xG13 chips. Note that this does revert a previous change to improve interoperability from changelist_2_6_4 that attempted to improve interoperability with a few specific devices. For best interoperability we recommend using the RAIL_BLE_ConfigPhy1Mbps() standard PHY.
431229: Resolved an issue on EFR32xG1x devices which could cause the transmit power to be incorrect when using the low power 2.4GHz PA ( RAIL_TX_POWER_MODE_2P4_LP ).

2.7.2

336739: Added new RAIL_EVENT_RX_SCHEDULED_RX_MISSED and RAIL_EVENT_TX_SCHEDULED_TX_MISSED events to inform the user when these are missed after waking from RAIL_Sleep() . This can happen if the specified wakeup time is not long enough.
421410: Fixed an issue introduced in 2.7.1 with TX PTI on EFR32XG13 including an extra byte of appended information, confusing the network analyzer.

2.7.1

337468: Fixed an issue where calling RAIL_Sleep() if there were no RAIL events pended would not stop and synchronize the clock source as requested but would return success indicating it had. The clock source will now be properly stopped and synchronized even if there are no events pending and it will be the user's responsibility to wake up on time.
337468: Fixed an issue where calling RAIL_Wake() without a successful call to RAIL_Sleep() first could cause the clock source to drift even when using RAIL_SLEEP_CONFIG_TIMERSYNC_ENABLED .
389462: Fixed an issue with RAIL_Calibrate() in multiprotocol, which would return RAIL_STATUS_INVALID_STATE if it is called with an inactive railHandle. Now, RAIL_Calibrate() will make the given railHandle active, if not already, and perform calibration.
389462: Fixed an issue with RAIL_Calibrate() where after completing calibration the radio would no longer be able to receive any packets, sometimes, until it was reset.
396786: Added support for the following EFR32xG21-based modules: BGM210L022JIF1, BGM210L022JIF2, BGM210L022JNF1, BGM210L022JNF2, BGM210LA22JIF1, BGM210LA22JIF2, BGM210LA22JNF1, BGM210LA22JNF2, BGM210P022JIA1, BGM210P022JIA2, BGM210P022JNA2, BGM210P032JIA1, BGM210P032JIA2, BGM210P032JNA2, BGM210PA22JIA1, BGM210PA22JIA2, BGM210PA22JNA2, BGM210PA32JIA1, BGM210PA32JIA2, BGM210PA32JNA2, MGM210L022JIF1, MGM210L022JIF2, MGM210L022JNF1, MGM210L022JNF2, MGM210LA22JIF1, MGM210LA22JIF2, MGM210LA22JNF1, MGM210LA22JNF2, MGM210P022JIA1, MGM210P022JIA2, MGM210P022JNA2 MGM210P032JIA1, MGM210P032JIA2, MGM210P032JNA2 MGM210PA22JIA1, MGM210PA22JIA2, MGM210PA22JNA2 MGM210PA32JIA1, MGM210PA32JIA2, MGM210PA32JNA2
401826: Fixed several issues and race conditions with RAIL_ScheduleRx() window end handling and event reporting to conform to its intended design:
- When the RX window ends with no RAIL_EVENTS_RX_COMPLETION imminent, RAIL_EVENT_RX_SCHEDULED_RX_END is posted.
- When the RX window is implicitly ended by one of the RAIL_EVENTS_RX_COMPLETION , e.g. because it results in an RX transition to Idle or because RAIL_ScheduleRxConfig_t::rxTransitionEndSchedule is non-zero, the event(s) posted depend on that setting:
  - When zero, both events are posted simultaneously.
  - When non-zero, only the appropriate RAIL_EVENTS_RX_COMPLETION is posted, unless that event is not enabled, in which case RAIL_EVENT_RX_SCHEDULED_RX_END is substituted instead.
- When the RX window ends while receiving a packet, it is deferred to the expected RX completion event (which includes aborting that packet when RAIL_ScheduleRxConfig_t::hardWindowEnd is non-zero). Event(s) reported at that time are the same as in the previous case.
406276: Restored ability for RAIL_StartCcaCsmaTx() and RAIL_StartCcaLbtTx() to perform an immediate transmit when their respective RAIL_CsmaConfig_t::csmaTries or RAIL_LbtConfig_t::lbtTries is 0. This functionality was improperly removed in 2.6.0.
407047: Fixed an EFR32xG21 issue where CSMA/LBT CCA durations were significantly shorter than specified.
408096: Fixed the 802.15.4 ACK turnaround time on the EFR32xG21 platform. Due to a calculation error this was actually 18 us too short which could cause interoperability problems.
414257: Added RAIL_TX_POWER_LEVEL_MAX which can be used to set the max PA power level across PA's. RAIL_TX_POWER_LEVEL_INVALID was added in 2.7.0 as the value 255. Some customers were using 255 to set max power across PA's with RAIL_SetTxPower , which previously worked, but will now return an error.

2.7.0

379150: Added support to RAIL_Sleep() for the PLFRCO on EFR32xG13 Rev D parts.
357922: Changed the LQI metric for the 2.4GHz IEEE802.15.4 PHY configurations to be scaled from 0 - 255 and to include more data to make it more stable. This can impact existing applications that are using the LQI values returned in prior RAIL versions.
378035: Use of the unsafe enum GPIO_Port_TypeDef within RAIL aggregate types RAIL_PtiConfig_t and RAIL_AntennaConfig_t has been replaced by safe uint8_t.
376229: Fixed an issue with Rx antenna diversity operation that prevented CCA from working, causing CSMA failures.
315849: Reduced switch time overhead for dynamic multiprotocol applications. The new switch times as well as information about them are documented at Understanding the Protocol Switch Time .
370805: Fixed an issue with the EFR32xG21 reporting a phantom packet on PTI after reset.
377026: Improved documentation of RAIL_RxPacketStatus_t values and their corresponding RAIL_Events_t events.
400303: Corrected an issue where RAIL_EVENT_TX_CHANNEL_BUSY due to RAIL_CsmaConfig_t::csmaTimeout or RAIL_LbtConfig_t::lbtTimeout would prevent further transmits.
400303: Corrected an issue where an invalid RAIL_CsmaConfig_t::ccaDuration or RAIL_LbtConfig_t::lbtDuration too large for the radio configuration to handle would not fail the respective transmit; this now returns RAIL_STATUS_INVALID_PARAMETER .
400303: Clarified that RAIL_EVENT_TX_BLOCKED and RAIL_EVENT_TX_CHANNEL_BUSY leave the TX FIFO intact without consuming any of its packet data.
392350: Corrected an issue where the radio might be left in receive after a RAIL_EVENT_TX_BLOCKED or RAIL_EVENT_TX_CHANNEL_BUSY when the transmit RAIL_StateTransitions_t::error is RAIL_RF_STATE_IDLE .
251786: Added new 802.15.4 RAIL APIs RAIL_IEEE802154_EnableEarlyFramePending() and RAIL_IEEE802154_EnableDataFramePending() to support Thread Basil-Hayden Enhanced Frame Pending feature.
369736: Added new 802.15.4 RAIL APIs RAIL_IEEE802154_ConfigGOptions() and RAIL_IEEE802154_ConfigEOptions() for configuring certain 802.15.4E-2012 and G-2012 features needed by GB868. Also, RAIL may now suppress the RAIL_EVENT_IEEE802154_DATA_REQUEST_COMMAND when latency has delayed the handling of that event too late to influence the outgoing ACK for it.
385960: Added information to packet trace for every protocol switch in dynamic multiprotocol telling the user what protocol RAIL has changed to as well the radio event that triggered this switch. This information is visible in Network Analyzer for better debugging of DMP applications.
389439: The EFR32xG13 AoX RAIL library is no longer present as that functionality has been merged into the standard RAIL library for EFR32xG13.
360371: Fixed an issue where calling RAIL_GetTxPowerDbm prior to calling RAIL_SetTxPower would return -500 i.e. -50dBm. As a part of the fix, we now return an invalid dBm value, RAIL_TX_POWER_MIN , if RAIL_SetTxPower was not called before calling RAIL_GetTxPowerDbm or if RAIL_SetTxPower it returns an error status.
382575: Added a new API RAIL_UseDma() , which can be used to enhance RAIL startup speed if called before RAIL_Init() .
376711: Added support for Z-Wave node ID based packet filtering via the RAIL_ZWAVE_OPTION_NODE_ID_FILTERING option.
386163: Added support for the radio sending an ACK packet automatically when in Z-Wave mode as long as node ID filtering and Auto-ACK features are enabled and a packet requesting an ACK is sent to the device.

2.6.5

Corrected the frequencies used by Z-Wave in the China, Malaysia, and India regions to match the specification. China was using the EU frequencies, Malaysia was using 868.10 MHz, and India was not applying the required 20 kHz offset to the R1 channel.

2.6.4

Fix an issue on the EFR32xG21 where the medium power and low power PAs might not complete ramping and end up transmitting at a lower power than desired.
Improved interoperability of the BLE 1Mbps PHY on EFR32xG13 devices.
Improved performance of OOK PHYs.
Updated packet trace format to include extra information for BLE packets.

2.6.3

Fixed an issue introduced in 2.6.2 where issuing a RAIL_Idle() with mode RAIL_IDLE_FORCE_SHUTDOWN_CLEAR_FLAGS could sometimes cause the receive FIFO to be corrupted and trigger a RAIL assert with code (RAIL_ASSERT_FAILED_ILLEGAL_RXLEN_ENTRY_STATUS).
Various bug fixes and improvements for the EFR32xG21 parts.

2.6.2

Updated the PA curves on the EFR32xG21 chips to slightly improve transmit power accuracy.
Resolved an issue where RAIL_GetChannelHoppingRssi would return an RSSI value even if receive was disabled.
Resolved an issue where RAIL_GetChannelHoppingRssi would not update the RSSI value while receiving packets.
Resolved an issue in multiprotocol where an absolute event with a non zero slip time would always work even if scheduled in the past.

2.6.1

Resolved an issue on the EFR32xG21 platform that could cause the chip to hang when coming out of a reset if RAIL_Idle() was called at the wrong time.
Added RAIL_GetChannelHoppingRssi API to allow the user to read the RSSI from each channel when channel hopping is enabled.
Fixed an issue where CRC-failed packets received with RAIL_RX_OPTION_IGNORE_CRC_ERRORS would be reported with RAIL_RX_PACKET_READY_SUCCESS instead of RAIL_RX_PACKET_READY_CRC_ERROR when the RAIL_EVENT_RX_FRAME_ERROR event isn't enabled.
Fixed an issue on the EFR32xG21 platform that caused the chip to incorrectly compute the PA ramp time at high power levels. If this happened, the ramp time would be higher than expected and cause large delays in the RAIL_StateTiming_t::rxToTx time which is used for sending ACK packets.
Fixed an issue on the EFR32xG21 platform that could cause erroneous Rx overflow events and failed receives when using the 125Kbps BLE coded PHY.

2.6.0

Fixed an issue causing the receive antenna to always be reported as antenna 0 when using receive antenna diversity.
Added alternative APIs for calculating receive timestamps, which give correct results for Long-Range BLE: RAIL_GetRxTimeFrameEndAlt , RAIL_GetRxTimePreambleStartAlt , RAIL_GetRxTimeSyncWordEndAlt .
Fixed an issue where receive events could corrupt the transmit packet length in frame type based length mode if they came in between the start transmit call and the actual transmit.
Fixed an Auto-ACK problem where ACKs were being sent for CRC error frames when RAIL_RX_OPTION_IGNORE_CRC_ERRORS is in effect.
Fixed a math error that could cause the RAIL_CsmaConfig_t::ccaDuration to be shorter than requested. This would happen whenever the (ccaDuration * rx_baudrate) exceeded the size of a 32 bit integer.
Fixed an issue in the multiprotocol RAIL library where the RAIL_GetTxPower() function could return the wrong output power if called with any RAIL handle other than the active one. We will now return the actual power that would be set if that protocol is active.
Fixed the PA conversion code so that it better handles error conditions and will not trigger a fault when given NULL parameters.
Added new API to retrieve the channel index of the most recent Beam packet accepted: RAIL_ZWAVE_GetBeamChannelIndex .
Added a new RAIL_DelayUs() API for short blocking delays using the RAIL time base.
Fixed a problem where state timings would not properly be updated when switching if both protocols used the same channel configuration structure.
Fixed an issue on the EFR32xG14 series that prevented Rx antenna diversity from functioning properly. This was introduced in the RAIL 2.5.0 release.
Restored pre-2.5.0 behavior with RAIL_SetRxFifoThreshold() to disable threshold events from occurring when passed an rxThreshold of the FIFO's size or larger. A 2.5.0 change allowed such rxThreshold settings to cause the event to fire when the buffer became full, though it's been mis-documented as one byte away from becoming full for quite a while – something that was never actually implemented and is now removed from the documentation.
Fixed RAIL_StartCcaCsmaTx() and RAIL_StartCcaLbtTx() to return RAIL_STATUS_INVALID_PARAMETER when passed invalid configuration parameters in their respective RAIL_CsmaConfig_t or RAIL_LbtConfig_t , whose documentation has been updated accordingly. In earlier releases the requested operation would proceed with an invalid or incomplete hardware configuration, resulting in undefined behavior.

2.5.1

Worked around a BLE longrange problem where Rx abort could cause deafness.

2.5.0

Added a channel hopping feature with RAIL_ConfigRxChannelHopping and RAIL_EnableRxChannelHopping . This feature allows users to specify a list of channels to scan over during receive. This feature allows for much faster scanning with less delay (about 100us) than simply repeatedly calling RAIL_StartRx() with different channels.
Included two default transmit power curves in the library: RAIL_TxPowerCurvesDcdc and RAIL_TxPowerCurvesVbat. When the pa-conversions plugin is used, one of these can be passed to the plugin, based on the way the power amplifier is powered.
Added the ability to specify a Link Quality Indicator (LQI) conversion callback with RAIL_ConvertLqi such that the hardware's LQI value can be changed before application consumption of that value.
Fixed an issue where RAIL_StopTxStream() was taking an extended amount of time to complete.
Certain received packet details in RAIL_RxPacketDetails_t , which were formerly available only for successfully received packets, are now also available for unsuccessfully received packets.
RAIL_DataMethod_t and related documentation have been updated to reflect that many FIFO_MODE concepts can now be used in PACKET_MODE, and the distinction between these modes has become nearly invisible for transmit. Also eliminated the previous restriction that both receive and transmit RAIL_DataMethod_t must match in the RAIL_DataConfig_t passed to RAIL_ConfigData() .
RAIL_ConfigData() no longer resets the receive FIFO when switching to RAIL_DataMethod_t::FIFO_MODE .
Added a new RAIL_TxOptions_t option RAIL_TX_OPTION_CCA_PEAK_RSSI to allow the user to use the peak RSSI instead of the average RSSI over the CCA period during CSMA and LBT transmits. This is only supported on EFR32xG12 and newer silicon.
Added a new RAIL_TxOptions_t option RAIL_TX_OPTION_ALT_PREAMBLE_LEN to allow the user to transmit with a runtime-specified preamble length. This alternate preamble length is set with RAIL_SetTxAltPreambleLength .
Added Z-Wave PHY configurations and functionality to the RAIL library.
Fixed an issue that could cause register corruption in very rare conditions due to a bus access race condition. The specific registers impacted were limited to those related to the radio and the corruption was most likely when running the coherent IEEE802.15.4 PHY on the EFR32xG12 and EFR32xG13 platforms. On other platforms and PHY configurations the issue is possible though very unlikely and never observed (id: 317234).
Resolved a multiprotocol scheduler issue that could cause some interrupted events to not be reported to the caller. Since these events never run there are no other related events either so state machines relying on RAIL events could get stuck in invalid states (id: 341124).
Enhanced RAIL_SetRxFifoThreshold() and RAIL_SetTxFifoThreshold() to now support a threshold value of RAIL_FIFO_THRESHOLD_DISABLED to explicitly disable a threshold previously established.
Fixed a documentation issue where a variety of RAIL APIs were incorrectly shown as "Referenced by RAIL_CopyRxPacket()".

2.4.1

Fixed an issue with RAIL_Sleep() that could cause the wake event to be set very far in the future. This would prevent waking at the proper time and cause problems for the application.
Fixed an issue in the multiprotocol library where the txToRxSearch time set by RAIL_SetStateTiming() would be lost after a protocol switch if there were no timings stored in the channel configuration.
Fixed an issue preventing radio coexistence transmit abort counter from incrementing.
Fixed radio coexistence HAL_CONFIG support for shared priority and shared request.

2.4.0

Added ability to set custom receive FIFO sizes via the RAIL_SetRxFifo() function. The new RAILCb_SetupRxFifo() callback may be used to override the default FIFO initialization to save RAM.
Added alternate functions to get packet details, in a way that helps lower code size: RAIL_GetRxPacketDetailsAlt() and RAIL_GetTxPacketDetailsAlt() . These come with functions to adjust the returned time stamp to different places in the packet: RAIL_GetRxTimePreambleStart() , RAIL_GetRxTimeSyncWordEnd() , RAIL_GetRxTimeFrameEnd() , RAIL_GetTxTimePreambleStart() , RAIL_GetTxTimeSyncWordEnd() , and RAIL_GetTxTimeFrameEnd() .
Broke up the IR calibration code to save code size for Zigbee and BLE where the results are stored on chip.
Added a new RAIL_SetRssiOffset() command to offset all RSSIs used by RAIL to match any hardware offsets on a given board.
Added a new RAIL_StopTx() function to stop only pending or current transmits without impacting receive.
For multiprotocol, added the ability to update a task's priority after it started with RAIL_SetTaskPriority() .
Added the ability to pre-apply a radio configuration to hardware before a TX or RX operation begins via RAIL_PrepareChannel() .
Added the ability to query RAIL for the channel configuration currently configured for use via RAIL_GetChannel() .
Fixed an issue where relative tasks with a non-zero slip time could start a few hundred microseconds earlier than they were supposed to.
Fixed an issue that could cause antenna diversity to not function correctly.
Fixed an issue where RAIL_Idle() with RAIL_IDLE_FORCE_SHUTDOWN could cause an erroneous RAIL_EVENT_TX_ABORTED event to fire.

2.3.1

Fixed one case where calling RAIL_Idle() with the mode set to RAIL_IDLE_FORCE_SHUTDOWN could cause us to output partial packet trace appended information.
Deferred multiprotocol event failures until just before the event must start when the expected runtime of a task causes it to not fit. These were previously reported immediately even though future tasks could change.

2.3.0

Added a RAIL_CopyRxPacket() helper for use after RAIL_GetRxPacketInfo() .
Added a fast, but inconsistent, transition times mode. This can be activated by setting state timings to 0.
Resolved a potential receive FIFO corruption that could occur when calling RAIL_HoldRxPacket() or RAIL_PeekRxPacket() .
A multi-timer API was added that allows for multiple software timers all driven off the one hardware timer. This must be explicitly enabled and will use more code than the standard APIs, but can be done through RAIL_ConfigMultiTimer() . Once in use, all timer APIs must use the multi timer versions to prevent conflicts with the hardware timer.
Added diagnostic functions RAIL_Verify() and RAIL_ConfigVerification() to provide a means of verifying internal radio memory contents.
Added alternative calibration APIs to RAIL_Calibrate, for potential code size savings: RAIL_CalibrateTemp, RAIL_CalibrateIr, and RAIL_ApplyIrCalibration.
Fixed an issue where requesting a small fixed CSMA backoff could result in a very large value from being selected instead.
Made PHY configuration improvements for BLE and Zigbee on the efr32xg14 platform.

2.2.0

In FIFO mode on the EFR32 the FIFO could only be read after 8 bytes were received. This restriction has now been lifted though the user must be careful and understand that in certain cases they could be reading appended information and not packet bytes.
On the EFR32XG14 some BLE packets showed up with invalid timestamps. These are now filtered and reported as aborted to the user so that the stack does not time sync to an invalid timestamp and lose the connection.
Fixed an issue where state transition times would not be recomputed when changing the PA ramp time on the fly.
Fixed a regression in 2.1.1 that caused Frame Type based length configurations to lock up the receiver. There was an issue where bits in the byte that were not supposed to be a part of the frame type were being included some times and could cause problems in the receive processing logic.
Prevented RAIL_StartRx() from resetting the receive FIFO. This was a legacy feature that was not documented and, though it generally worked, would cause problems to users processing deferred receive events or users that called RAIL_StartRx() in an interrupt disabled context. If this behavior was required it can be replicated by idling the radio and then calling RAIL_ResetFifo() with rxFifo set to true before any calls to RAIL_StartRx() .
Fixed an issue in the RAIL_IEEE802154_SetAddresses() function that caused it to never set any long address except for the first one and to set that one to the value given in the final long address entry.
Updated the documentation for the IEEE 802.15.4 and BLE protocol functions to show properly usage with the new RAIL 2.0 API.
Dynamic Multiprotocol fixes:
- Added support for each protocol having auto ACK enabled by allocating space for independent ACK buffers.
- Ensured that the sync word is properly output in BLE Long Range no matter when the packet data is loaded into the transmit FIFO.
- Prevented the sync word in packet trace feature from being turned on in Zigbee when it's enabled by BLE.

2.1.2

Removed unimplemented functions RAIL_GetActiveChannelConfig() and RAIL_GetActiveChannelConfigEntry().

2.1.1

RAIL_PauseTxAutoAck() was internally pausing the Rx AutoAck logic. This has now been corrected.
EFR32XG12 and EFR32XG13 devices were detecting a high number of false 15.4 sync words. Even though these packets were eventually filtered they would show up on PTI. In 2.1.1 there should be significantly fewer of these packets as some of this was caused by a bug in a configuration algorithm.
Channel power limits for BLE PHYs were not always being respected. This could have caused us to use a power which might result in certification issues.
The RAIL_StateBuffer_t type was incorrectly sized resulting in a waste of RAM for RAIL applications. This has now been trimmed down to the actual size required.

2.1.0

Packet receive APIs were totally revamped to allow faster and out-of-order deferred processing of received packets and their data outside of interrupt/callback context. Gone are RAIL_GetRxPacketHandle(), RAIL_ReadRxFifoAppendedInfo(), and the memory management RAILCb_ callbacks, replaced with RAIL_GetRxPacketInfo() that provides pointers directly to the received data held in RAIL's internal receive FIFO buffer allowing for zero-copy operation. See other RAIL 2.x porting documentation and new routines RAIL_GetRxPacketInfo() , RAIL_GetRxPacketDetails() , RAIL_HoldRxPacket() , and RAIL_ReleaseRxPacket() , along with updated RAIL_PeekRxPacket() and RAIL_ReadRxFifo() behavior.
On the transmit side, zero-copy is also now supported by allowing applications to specify their own buffers for the transmit FIFO, eliminating RAIL's former internal fixed-size 512-byte one. See new RAIL_SetTxFifo() .
The former RAIL_LoadTxData() has been merged into an updated RAIL_WriteTxFifo() API.
The RAIL_Event_t type was renamed RAIL_Events_t now that multiple events can be presented to the application simultaneously in RAIL's generic events callback, rather than relying on the internal arbitrary order that RAIL imposed previously, which may not match the application's or protocol's expectations.
Event/callback configuration is now managed entirely by RAIL_ConfigEvents() , eliminating the old RAIL_ConfigTx() and RAIL_SetCallbackConfig() APIs.
Channel numbers were increased in range from 8 bits to 16 bits, and channel configurations made much more flexible allowing for multi-band radio configurations and an easy way to specify TX power limits on certain channels that otherwise share a common configuration. See new APIs RAIL_GetActiveChannelConfig() and RAIL_GetActiveChannelConfigEntry() along with changes to RAIL_ConfigChannels() .
Power levels were given a formal RAIL_TxPowerLevel_t type, and RAIL_SetTxPower() now returns a RAIL_Status_t not the power level actually achieved – must now use RAIL_GetTxPower() to get that.
PA power curves and the conversion between RAIL power level and dBm have been fully abstracted to live outside of RAIL, allowing customers complete flexibility to characterize their designs and PA selection. See new APIs RAIL_ConfigTxPower() , RAIL_ConvertDbmToRaw() , RAIL_ConvertRawToDbm() , RAIL_GetTxPowerConfig() , RAIL_GetTxPowerDbm() , RAIL_SetTxPowerDbm() , and RAIL_EnablePaCal() .
Protocols using Frame Types to determine packet length are better integrated into the Studio radio configurator and channel configuration. Gone are APIs like RAIL_ConfigFrameTypeLength() and RAIL_EnableAddressFilterByFrameType() whose functionality is now subsumed within channel configurations.
APIs to support RAIL timebase synchronization across sleep/wake were added: RAIL_ConfigSleep() , RAIL_Sleep() , and RAIL_Wake() .
State transitions for success and error are now encapsulated in a new RAIL_StateTransitions_t structure. This affected the RAIL_SetRxTransitions() and RAIL_SetTxTransitions() routines.
The former RAIL_EVENT_TX_BUFFER_UNDERFLOW has been broken out into non-ACK ( RAIL_EVENT_TX_UNDERFLOW ) and ACK ( RAIL_EVENT_TXACK_UNDERFLOW ) flavors like the other transmit completion events.
Diagnostic toning APIs were merged into the streaming APIs as the RAIL_StreamMode_t::RAIL_STREAM_CARRIER_WAVE .
RAIL_ConfigCal() was revamped to use RAIL_CalMask_t .
RAIL_Calibrate() 's bool calSave argument was removed, being redundant with a NULL vs. non-NULL calValues argument.
Support for Packet Traffic Arbitration (PTA) or Coexistence was added in the form of an API to prevent transmits from going on the air: RAIL_EnableTxHoldOff() , along with RAIL_IsTxHoldOffEnabled() to check the current state.
The former RAIL_AutoAckDisable() was merged into RAIL_ConfigAutoAck() by means of its RAIL_AutoAckConfig_t::enable parameter field.
The former RAIL_EnableRxFifoThreshold() was replaced by using RAIL_ConfigEvents() to enable/disable the RAIL_EVENT_RX_FIFO_ALMOST_FULL event.
The former blocking RAIL_PollAverageRssi() was eliminated; use the non-blocking RAIL_StartAverageRssi() instead.
Several APIs were renamed for consistency and updated accordingly:
- former RAIL_GetTxPacketInfo() is now RAIL_GetTxPacketDetails() ;
- former RAIL_UseTxBufferForAutoAck() is now RAIL_UseTxFifoForAutoAck() ;
- former RAIL_LoadAutoAckBuffer() is now RAIL_WriteAutoAckFifo() .
More API functions were updated to take a RAIL_Handle_t argument: RAIL_SetFreqOffset() , RAIL_GetRxFreqOffset() , and the RAIL_IEEE802154_ protocol APIs.
RAIL_IEEE802154_GetAddress() was updated to return RAIL_Status_t rather than RAIL_IEEE802154_Address_t which is now passed as an output argument.
RAIL_EnableDirectMode() and RAIL_SetTune() now return RAIL_Status_t rather than void.
A multiprotocol scheduler API was added to get its status: RAIL_GetSchedulerStatus() .
The RAILCb_AssertFailed() callback returns with a RAIL_Handle_t parameter that might be NULL since assert conditions might occur during initialization prior to handle assignment or during multiprotocol switching.
Many APIs with pointer arguments were clarified to use const pointers where the API doesn't modify the data pointed to.

2.0.0

All API names were updated to follow a strictly VerbNoun convention.
RAIL_SetAbortScheduledTxDuringRx() is no longer a separate API, rather it was added to RAIL_ScheduleTxConfig_t . Set the desired TX during RX behavior when that struct is passed to RAIL_StartScheduledTx() .
Add support for building single-prototocol, multi-protocol, and core RAIL libraries.
Changed RAIL_RadioState_t to a bitmask. Supported RAIL_RadioState_t bits are: RAIL_RF_STATE_ACTIVE , RAIL_RF_STATE_RX , and RAIL_RF_STATE_TX ; combinations of these bits yield the additional states RAIL_RF_STATE_INACTIVE , RAIL_RF_STATE_IDLE , RAIL_RF_STATE_RX_ACTIVE , and RAIL_RF_STATE_TX_ACTIVE .
Added RAIL_RX_OPTION_TRACK_ABORTED_FRAMES to configure seeing full packets via Packet Trace, even after they have been aborted.
Added RAIL 15.4 PTI Rx error code UNDESIRED_ACK to indicate an ACK filtered because it did not have the desired sequence number matching that in the recently-transmitted ACK-requesting frame.
Updated return type from uint8_t to RAIL_Status_t for many functions.
Removed deprecated bit error-rate APIs RAIL_BerConfigSet(), RAIL_BerRxStart(), RAIL_BerRxStop(), RAIL_BerStatusGet(), along with deprecated types RAIL_BerConfig_t and RAIL_BerStatus_t.
TX related events are now broken out to specify whether the event is relevant to an ACK packet or user-initiated TX. Specifically those are RAIL_EVENT_TX_ABORTED and RAIL_EVENT_TXACK_ABORTED , RAIL_EVENT_TX_BLOCKED and RAIL_EVENT_TXACK_BLOCKED , and RAIL_EVENT_TX_PACKET_SENT and RAIL_EVENT_TXACK_PACKET_SENT . One of each type (i.e. one ACK, one non-ACK) can occur before being handled.
RAIL_StartTx() no longer takes a pre-TX operation function pointer to do scheduled or CCA transmits. Instead, there are now separate API's for each type of transmit: RAIL_StartTx() , RAIL_StartScheduledTx() , RAIL_StartCcaLbtTx() , RAIL_StartCcaCsmaTx() .
RAIL_TxOptions_t has been converted to a 32-bit bitmask, so that RX and TX options are both represented as bitmasks. A single TX option mask is passed into each TX call.
RAIL_ConfigEvents() now also takes two bitmasks, one to indicate which events should be affected, and the second indicating which of those events should be enabled.
Similarly, RAIL_ConfigRxOptions() takes two bitmasks, one to indicate which options to update, and the second indicating the desired value of those options, which affect all future receives.
Options for removing RX appended info and ignoring CRC are now controlled exclusively by RAIL_ConfigRxOptions() .

1.6.1

Added new BLE radio configurations for EFR32xG13 parts to fix a transmit overshoot issue on the coded PHY configurations for BLE Long Range.
Fixed DCDC voltage droop during RAIL_RfInit()
Added an API ( RAIL_EnablePaCal() ) that enables loading of chip to chip PA calibration data.

1.6.0

Fixed an issue where RAIL_RfStateGet() would mistakenly return RAIL_RF_STATE_IDLE instead of RAIL_RF_STATE_TX when a Transmit operation's LBT is active.
Added an API (RAIL_SetAbortScheduledTxDuringRx) that sets the behavior when a scheduled TX fires during an RX or ACK. If the API is passed false, TX's will be delayed until the RX (or ACK to the RX) is complete. That behavior is the default and what always happened previously. Passing the function true however will abort scheduled TX's that fire during the RX (or ACK to the RX) and fire the RAILCb_TxRadioStatus callback.
Added new RAILCb_AssertFailed callback to give the flexible handling of asserts within RAIL. This includes defines of assert codes and error reasons in rail_assert_error_codes.h . The default implementation hangs in an infinite loop.
Added RAIL_ENUM define to override enum size ambuiguity in the ARM EABI by making them actually a uint8_t. For documentation purposes they are still shown as enums.
Added new TX options: removeCrc, to override whether CRC is sent; and syncWordId, to choose which SYNC word to transmit when multiple SYNC words are configured.
Added new RX option: RAIL_RX_OPTION_ENABLE_DUALSYNC, which allows multiple SYNC words to be searched for on PHYs that support it.
Added RAIL_PeekRxPacket to allow reading part of a packet before it has been fully received.
Changed BER Test functionality in RAILTest such that if a RX overflow is detected (due to the incoming datarate being too high), the test now aborts and displays an appropriate status message.
Fixed an issue where the code could hang in a RX overflow state when receiving incoming data streams.
RAIL_TxToneStart() and RAIL_TxStreamStart() now idle the radio before transmitting.
Fixed an issue where calling RAIL_TimerSet() while in the middle of a stream or tone transmission could lock up the radio.
Added new frequency offset related functions, RAIL_GetRxFreqOffset and RAIL_SetFreqOffset, and the associated RAIL_FrequencyOffset_t type definition.

1.5.2

Fixed an issue in 1.5.1 that would cause scheduled receive, scheduled transmit, and RAIL timer operations to fail on EFR32xG12 with a relative delay of 0.
Fixed an issue in 1.5.1 that would cause scheduled receive and scheduled transmit to fail if called with an absolute time from [0, rxWarmTime) or [0, txWarmTime) respectively.
Fixed an issue where a failed scheduled transmit operation would prevent any transmit from succeeding until RAIL_RfIdle() or RAIL_RfIdleExt() were called.
Fixed an issue in 1.5.1 where calling idle while looking for an ACK could cause the radio to get stuck in the receive state.

1.5.1

Added official support for the EFR32xG12 parts through a new librail_efr32xg12.a version of the library.
Added RAIL_SetRxOptions API for configuration of receive options, such as RAIL_RX_OPTION_STORE_CRC.
Increase transmit and receive fifo sizes to 512 bytes for all EFR32xG1 parts. This impacts both packet and fifo modes.
Added RAIL_RxDataSource_t::RX_DEMOD_DATA in order to receive demodulated data via FIFO method.
Shortened the duration that the transmit buffer lock in RAIL_TxDataLoad() is held, as it was overprotective. RAIL will still report an error if the application attempts to manipulate the transmit buffer while actively transmitting data.
Improved state transition timings for enhanced precision and accuracy. To improve precision we have switched to a more stable receive complete event since our previous trigger could jitter for certain radio configurations. To improve accuracy we measured and removed PHY specific overhead for BLE applications. Note that this measurement was BLE specific and does not completely correct accuracy on any arbitrary PHY configuration. For custom PHY configurations you will still have to manually calibrate out any offsets by measurement and any previous measurements are likely different now.
Moved BER test implementation out of the RAIL library and into RAILTest. Deprecated the existing BER test functions in the RAIL API. With BER test code now existing in RAILTest, you must use version 2.2.1 or later of the radio configurator.
Disabled receive buffer overflow and transmit buffer underflow as BUFC_IRQHandler() events. These events now only occur in FRC_IRQHandler() .
Sped up RAIL transmit and receive buffer read/write operations.
Fixed a race condition that could cause the receive packet callback to be delayed until the next receive packet event.

1.5.0

Added other methods of Data Management . The application can configure RAIL to provide/retrieve data via FIFO method.
The new FIFO method of data management brings with it two new callbacks: RAILCb_TxFifoAlmostEmpty(), and RAILCb_RxFifoAlmostFull(). Note that you must implement these new callbacks or stub them out if you do not intend to use them.

1.4.2

Fixed a bug in how we handled IEEE 802.15.4 data request packets. Specifically, we were not issuing the RAILCb_IEEE802154_DataRequestCommand() callback for data request packets that were sent with MAC security enabled.
Fixed a bug where calling RAIL_TxDataLoad() at an inopportune time could cause that and all subsequent such calls to fail.

1.4.1

Implemented LQI measurement. The field in RAIL_AppendedInfo_t is now populated on every packet receive.
Allow transmit while receive is active, if the channel is the same. After transmitting, the radio will follow the configured state transitions as before.
Allow shorter ccaBackoff times if receive is active during the CSMA or LBT process.
Allow calling RAIL_RxConfig while receiving.
Added new receive event: RAIL_RX_CONFIG_PACKET_ABORTED
Added new RAIL_TxConfig API, along with more transmit events: RAIL_TX_CONFIG_CHANNEL_CLEAR, RAIL_TX_CONFIG_CCA_RETRY, RAIL_TX_CONFIG_START_CCA
Fixed a filtering bug in the IEEE 802.15.4 code. We were incorrectly filtering packets with a 0xFFFF source PANID while the coordinator which caused problems in the joining process. The new logic will only use the source PANID for filtering if we are the coordinator, there is no destination address, and the frame type is MAC command or Data.
Migrated to Gecko SDK 5.0, including the new em_core APIs for interrupt enabling and disabling. This adds required dependencies on the CORE_EnterCritical() and CORE_ExitCritical() functions.
Added new RSSI functions for hardware and software averaging: RAIL_StartAverageRSSI(), RAIL_GetAverageRSSI(), RAIL_AverageRSSIReady(), RAIL_PollAverageRSSI().
Added new RSSI callback: RAILCb_RssiAverageDone().
Added the ability to switch between multiple BLE phys, including 2Mbps phys, on chips that support the new phys.

1.4.0

Added support for the EFR32MG12P part family with larger RAM and Flash size variants along with some new chip features.
Renamed anything that was just efr32 in the previous releases to efr32xg1 to differentiate it from the new efr32xg12 family of parts.
Add support for the new BLE 2MBit PHY to the BLE acceleration and configuration APIs on EFR32xG12 chips.
Better optimize IR Calibration run times for all EFR32xG1 parts. You must use version 0.69 or later of the radio configurator.

1.3.2

Added RAIL_SetPtiProtocol() and RAIL_PtiProtocol_t . This function allows the application to configure RAIL's packet trace interface to output protocol specific data.
Fix BER functions to operate at 1Mbps data rates.
RAIL_RfIdle() does not clear the transmit buffer anymore. RAIL_TxDataLoad() resets the transmit buffer with every packet set. This fixes the case where RAIL_RfIdle() is called after RAIL_TxDataLoad().
Fixed bug when using fixed packet lengths configured via the Radio Configurator. RAIL_TxStart() will not overwrite the configured fixed length to the amount of data loaded by RAIL_TxDataLoad().
Fixed bug in RADIO_PA_Init() where ramp times greater than 11.2 ms would be truncated to a very short ramp.

1.3.1

Added IEEE 802.15.4 hardware acceleration. The new APIs can be found in protocol/ieee802154/rail_ieee802154.h . Documentation for these APIs can be found in IEEE 802.15.4 . This includes a new callback: RAILCb_IEEE802154_DataRequestCommand().
Added Auto Ack hardware acceleration. Documentation for these APIs can be found in Auto-ACK .
Added RAIL_TxStartWithOptions(). This new API takes a pointer to RAIL_TxOptions_t that contains options to modify the upcoming transmit.
Increased minimum state transition time to 100 us.
Added RAIL_STATUS_INVALID_CALL
Added RAIL_AppendedInfo_t::isAck

1.3.0

Added BLE hardware acceleration. The new APIs can be found in protocol/ble/rail_ble.h . Documentation for these APIs can be found in BLE .
Added RAIL_ScheduleRx() and RAIL_ScheduleRxConfig_t . This allows the application to schedule a RX window using the RAIL timebase.
Added RAIL_TIME_DISABLED enum to RAIL_TimeMode_t .
Added an extended idle function which gives you more control of how the radio is idled. See RAIL_RfIdleExt() and RAIL_RfIdleMode_t for more details.
Added RAIL_RX_CONFIG_TIMEOUT and RAIL_RX_CONFIG_SCHEDULED_RX_END
Added RAIL_TX_CONFIG_TX_ABORTED and RAIL_TX_CONFIG_TX_BLOCKED
Added an extended radio status callback that supports up to 32 different status reasons (RAILCb_RxRadioStatusExt()). You may implement this instead of RAILCb_RxRadioStatus() or continue using the old version if you do not need access to more than the first 8 status values.

1.2.7

Added FEM control signals
Added RAIL_SetPaCTune in order to tune the PA capacitor value for TX and RX.
Fix typo in RAIL_StreamMode_t : PSUEDO_RANDOM_STREAM to PSEUDO_RANDOM_STREAM

1.2.6

Added ability to reset demod.

1.2.5

Fixed register settings for BER testing.
Fixed packet buffer for contents larger than 170 bytes.

1.2.4

Presented worst case RfSense wake period

1.2.3

Optimized address filtering code for operation at higher data rates.
Clarified data rate limitations of address filtering.

1.2.2

Added RAIL_SetTime() in order to allow the user to change the RAIL timebase with microsecond granularity.
Removed spurious calls to RAIL_RxRadioStatus() with the RAIL_RX_CONFIG_BUFFER_OVERFLOW argument, which were happening when receive was aborted due to events such as address filtering failures.
Fixed incorrect PA output power calculations.

1.2.1

Allow RAIL_RxStart() and RAIL_TxStart() to not error if the radio is heading to idle after a call to RAIL_RfIdle(). Application code does not have to wait until the radio is completely idle before calling a receive or transmit operation as long as the radio is heading to idle.

1.2.0

Fixed IR calibration such that calibration values are more accurate for radio configurations with datarates below 10Kbps.
Fixed IR calibration such that the default calibration value is applied when a better calibration value is unable to be calculated.
Added RAIL_CalInit() for calibration initialization.
Added BER test API and structures for diagnostic use - RAIL_BerConfigSet(), RAIL_BerRxStart(), RAIL_BerRxStop(), RAIL_BerStatusGet(), RAIL_BerConfig_t, RAIL_BerStatus_t.
Enabled DC Calibration during initialization.

1.1.1

Fixed CCA timing to prevent invalid CCA failures when starting out of IDLE state.
Fixed RX state transitions to TX when ignoring CRC errors. Will properly take the success route when a CRC error occurs while ignoring CRC errors.
Fixed TX error state transition after CCA failure.

1.1.0

RAIL_RX_CONFIG_INVALID_CRC changed to RAIL_RX_CONFIG_FRAME_ERROR
- This now accurately represents the callback flag.
- A frame error is either an invalid crc, a frame coding error, or a variable length error. On detection of a frame error, the radio will proceed to the defined error state.
RAIL_SetRxTransitions() and RAIL_SetTxTransitions() APIs added
- Add ability to configure radio to automatically to transition to a given radio state on completion of a receive or transmit event.
RAIL_SetStateTiming() API added
- State transition times can be configured. The given timestamps will not perfectly match on-air times, due to the RX and TX chain delays, which are dependent on the radio configuration.
RAIL_AddressFilterByFrameType() added
- If address filtering and frame type length decoding are both enabled, this gives the ability to enable or disable address filtering per frame type

1.0.0

Return quarter dBm resolution from RAIL_RxGetRSSI(). This changes the return value to an int16_t from an int8_t.
Added calibration APIs ( Calibration )
- The RAIL library will notify the application via callback, RAILCb_CalNeeded(), whenever it detects a calibration is needed.
- An API is provided allowing the application to choose when to calibrate the radio, to pass in a known calibration value, or force a calibration to occur.
RAIL_TxPowerSet() returns the power level that can be set which might not match the requested power level.

Beta 1 - November 16, 2015

Exposed EFR32 RF Energy Sensing capability via a RAIL API.
- This functionality allows the radio to be woken from sleep by a large amount of energy over the air.
Added new RAIL Timer APIs ( System Timing )
- This provides access to a hardware timer running at the RAIL timebase. You can use this to implement simple protocol timing that may be needed by your low level radio code.
- This change also adds a new RAILCb_TimerExpired() that must be implemented by your application.
Added APIs to access the bit rate and symbol rate for the current PHY (RAIL_BitRateGet(), RAIL_SymbolRateGet()).
Cleaned up RAIL type names so that they all begin with the RAIL_ prefix. This will require updates to existing application code.
Initial integration with Simplicity Studio's application builder tools

Alpha 2 - September 14, 2015

Filtering of receive packets based on defined address fields and compare values. See Address Filtering for more details.
Added different Pre-Transmit options for the Tx function.
- Scheduling of packet transmission at an absolute time or after a defined delay.
- Packet transmission conditional on Clear Channel Assessment (CSMA, LBT).
The ability to read RSSI manually with RAIL_RxGetRSSI().
Support for building RAIL applications using both GCC and IAR toolchains.

Alpha 1

Initial release with support for transmit receive and basic radio configuration.