Changelog

All notable changes to this project are documented in this file.

Added

  • Added ble_controller_support_dle() which makes LE Data Length Extension support configurable.

  • Added preliminary support for the S140 variant with the nRF5340 device. The BLE controller for nRF5340 supports the same feature set as its nRF52 Series counterpart. The following library has been added:

    • ble_controller/lib/cortex-m33+nodsp/soft-float/libble_controller_s140.a

Changes

  • mpsl_init() is no longer called by ble_controller_init(). Application is therefore responsible for calling mpsl_init(), and it must be done before ble_controller_init() is called.

  • Clock configuration parameters are now contained in mpsl_clock_lfclk_cfg_t instead of nrf_lf_clock_cfg_t, and must be provided to mpsl_init() instead of ble_controller_init().

  • Clock accuracy must now be specified in parts per million (ppm) instead of the previous enum value.

  • The IRQ line to pend for low priority signal processing must be provided to mpsl_init() instead of ble_controller_init().

  • The application must call mpsl_low_priority_process() instead of ble_controller_low_prio_tasks_process() to process low priority signals.

  • mpsl_uninit() is no longer called by ble_controller_disable(). Application must therefore call mpsl_uninit() after ble_controller_disable() to uninitialize MPSL.

  • Interrupt handler APIs for the following peripherals are moved to MPSL: RADIO, RTC0, TIMER0, and POWER_CLOCK.

  • High frequency clock API (ble_controller_hf_clock_...) is removed. Use corresponding API in MPSL instead.

  • Temperature API (ble_controller_temp_get()) is removed. Use corresponding API in MPSL instead.

  • Timeslot API is removed. Use corresponding API in MPSL instead.

  • Version numbers have been removed from the libraries.

Bugfixes

  • Fixed an issue on nRF53 that could cause poor performance when performing active scanning.

  • Fixed an issue on nRF53 where an assert could occur when receiving extended advertising packets.

  • Fixed an issue where the application could not immediately restart a connectable advertiser after a high duty cycle advertiser timed out.

  • Fixed an issue on nRF53 where the T_IFS in certain conditions was off by 5 us.

  • Fixed an issue where a control packet could be sent twice even after the packet was ACKed. This would only occur if the radio was forced off due to an unforeseen condition.

  • Fixed an issue in HCI LE Set Extended Scan Enable where UNSUPPORTED_FEATURE was returned when duplicate filtering was enabled.

  • Fixed an issue in HCI LE Set Advertising Parameters where UNSUPPORTED_FEATURE was returned when secondary_max_skip was set to a non-zero value.

  • Fixed an issue on nRF53 where the radio stayed in the TX state longer than expected. This issue occured when sending a packet on either LE 1M or LE 2M PHY after receiving or transmitting a packet on LE Coded PHY. If this occured while performing a Link Layer Control Procedure, the controller could end up retransmitting an ACKed packet, resulting in a disconnect.

  • Fixed an issue where an assert could occur when receiving a packet with a CRC error after performing a data length procedure on Coded PHY.

  • Fixed an issue where an assert occurred when setting a secondary PHY to 0 when using HCI LE Set Extended Advertising Parameters. This issue occurred when the advertising type was set to legacy advertising.

ble_controller 0.3.0-3.prealpha

Added

  • Added support for nRF52833.

Bugfixes

  • Fixed an issue where hci_data_get() could return “No data available” when there was data available. This issue would only occur when connected to multiple devices at the same time.

ble_controller 0.3.0-2.prealpha

Bugfixes

  • Fixed an issue where an assert occured when the host issued LE Write Suggested Default Data Length.

ble_controller 0.3.0-1.prealpha

Added

  • Increased the number of supported SoC and library combinations.

  • Added API for estimating the dynamic memory usage returned by ble_controller_cfg_set().

  • Added a new header ble_controller_hci_vs.h that exposes definitions of Vendor Specific HCI commands and events.

  • Added support for connection intervals less than the standard minimum of 7.5 ms. Note that this a proprietary feature that is not BLE compliant. This proprietary feature is named ‘Low Latency Packet Mode (LLPM)’.

  • Added support for enabling or disabling connection event length extension. When disabled, the maximum connection event length is set by ble_controller_cfg_event_length_t::event_length_us. When enabled, the maximum connection event length is determined by the connection interval.

  • Added support for generating QoS Connection event reports. When enabled, one report is generated with every connection event. The report contains information that can be used to change the BLE channel map.

Bugfixes

  • Fixed an issue where HCI Read Local Supported Commands command did not indicate support for HCI LE Set Privacy Mode command.

  • Fixed an issue where an ASSERT occured when setting advertising data after HCI Reset without setting advertising parameters.

  • Fixed an issue where an ASSERT occured when writing to flash.

  • Fixed an issue where a directed advertiser could time out without sending a packet on air.

Changes

  • The VersNr field in the LL_VERSION_IND packet now contains the value 0x0A to indicate Bluetooth Core Specification v5.1 compatibility.

  • Bluetooth Core Specification Erratum #10750 is incorporated. The LE Data Length Change event will now be raised when switching to and from Coded PHY. On-air behavior has not changed.

  • Bluetooth Core Specification Erratum #10818 is incorporated. The controller now allows HCI ACL data packets with 0-length payload, but does not transmit anything until receiving the next non-zero continuation fragment.

  • Cleaned up invalid doxygen comments.

ble_controller 0.2.0-4.prealpha

  • Added a workaround to block the host from sending HCI commands when a shared command is in progress.

ble_controller 0.2.0-3.prealpha

  • Fixed a bug causing an assert in ble_controller_soc.c:29.

  • Changed naming to “nRF BLE Controller” in the documentation.

ble_controller 0.2.0-2.prealpha

Minor documentation fixes.

Changes

  • Added names to nested structs and unions in timeslot.h as a workaround for a Sphinx documentation build issue.

  • Fixed internal links to functions and files.

ble_controller 0.2.0-1.prealpha

Updated BLE controller with bugfixes and updated APIs.

Added

Bugfixes

  • Fixed an issue in HCI control flow that severely limited BLE throughput.

Changes

  • Moved fault_handler and p_clk_cfg from ble_controller_enable() to ble_controller_init().

  • Changed ble_controller_process_SWI5_IRQ() to be IRQ independent. The generic ble_controller_low_prio_tasks_process() is used instead and SWI5 is no longer reserved.

  • Aligned naming for ble_controller configuration names.

  • Made minor changes to existing API.

  • Improved API documentation.

ble_controller 0.1.0-2.prealpha

No change to library files.

Added

  • Headers necessary to utilize the timeslot API.

ble_controller 0.1.0-1.prealpha

Initial release.

Added

  • Added the following ble_controller_nrf52_0.1.0-1.prealpha library variants, each in soft-float, softfp-float, and hard-float builds:

    • libble_controller_s112_nrf52_0.1.0-1.prealpha.a

    • libble_controller_s132_nrf52_0.1.0-1.prealpha.a

    • libble_controller_s140_nrf52_0.1.0-1.prealpha.a