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nrf_802154: rev 48cf89d207a0e1a71f3b62d172d0da3ad5af5a03
This commit updates revision of the nrf_802154 component. Signed-off-by: Dawid Przybylo <[email protected]>
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‎nrf_802154/doc/multiprotocol_support.rst‎

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@@ -75,6 +75,14 @@ Because of the nature of the Bluetooth Low Energy protocol (TDMA), the Bluetooth
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Dropped packets are common in wireless networks, and IEEE 802.15.4 based protocols are usually resilient to that.
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To mitigate the number of packets lost on IEEE 802.15.4 based protocol, prolong the timing parameters for Bluetooth Low Energy, such as the advertising interval or the connection interval.
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.. _rd_multiprotocol_support_measurements:
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Multiprotocol measurements
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==========================
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.. include:: multiprotocol_switching_tables.rst
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:start-line: 1
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.. _rd_multiprotocol_support_hf_clock:
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Handling high-frequency clock

‎nrf_802154/doc/multiprotocol_switching_tables.rst‎

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:orphan:
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.. note::
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The following data and tables are provided for informational purposes only, do not constitute requirements,
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and were obtained from measurements on Nordic development kits.
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Radio Transition Measurements
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-----------------------------
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The following measurement uses the nRF21540 Front-End Module (FEM) connected to a Nordic SoC, which provides
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essential timing data through GPIO pins.
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The RX_EN pin manages the Low-Noise Amplifier (LNA) function of the FEM.
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When RX_EN is low (deactivated), the LNA is disabled, indicating that receive operations are ending or the
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radio is being deactivated at the end of a time slot.
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During protocol transitions, radio switching timing metric is measured in both directions:
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Radio switching time:
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802.15.4 to Bluetooth transition:
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* Start: FEM RX_EN pin event (802.15.4 radio turning off on the end of 802.15.4 activity)
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* End: RADIO READY event for Bluetooth operation (Bluetooth LE radio turned on and ready)
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Bluetooth to 802.15.4 transition:
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* Start: RADIO DISABLED event (Bluetooth radio turning off)
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* End: RADIO READY event for 802.15.4 operation (802.15.4 radio turned on and ready)
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The measurements are collected during Bluetooth advertisement, scanning, and connection activities while the
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nRF 802.15.4 radio driver is in the receive state.
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Multiprotocol radio switching time comparison by device family
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--------------------------------------------------------------
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+--------------------+---------------------+-----------------+-----------------+------------------+
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| Bluetooth activity | Direction | nRF52 mean [µs] | nRF53 mean [µs] | nRF54L mean [µs] |
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+====================+=====================+=================+=================+==================+
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| advertisement | 802.15.4→Bluetooth | 324 | 346 | 268 |
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+--------------------+---------------------+-----------------+-----------------+------------------+
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| advertisement | Bluetooth→802.15.4 | 289 | 335 | 172 |
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+--------------------+---------------------+-----------------+-----------------+------------------+
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| scanning | 802.15.4→Bluetooth | 303 | 315 | 256 |
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+--------------------+---------------------+-----------------+-----------------+------------------+
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| scanning | Bluetooth→802.15.4 | 234 | 292 | 150 |
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+--------------------+---------------------+-----------------+-----------------+------------------+
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| connection | 802.15.4→Bluetooth | 386 | 388 | 348 |
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+--------------------+---------------------+-----------------+-----------------+------------------+
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| connection | Bluetooth→802.15.4 | 333 | 398 | 211 |
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+--------------------+---------------------+-----------------+-----------------+------------------+
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Multiprotocol radio switching time measurements by device family
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----------------------------------------------------------------
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nRF52 family
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^^^^^^^^^^^^
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+--------------------+---------------------+---------------------------------+
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| Bluetooth activity | Direction | Timings (min | mean | max) [µs] |
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+====================+=====================+=================================+
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| advertisement | 802.15.4→Bluetooth | 305 | 324 | 427 |
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+--------------------+---------------------+---------------------------------+
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| advertisement | Bluetooth→802.15.4 | 273 | 289 | 299 |
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+--------------------+---------------------+---------------------------------+
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| scanning | 802.15.4→Bluetooth | 287 | 303 | 317 |
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+--------------------+---------------------+---------------------------------+
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| scanning | Bluetooth→802.15.4 | 232 | 234 | 239 |
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+--------------------+---------------------+---------------------------------+
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| connection | 802.15.4→Bluetooth | 372 | 386 | 398 |
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+--------------------+---------------------+---------------------------------+
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| connection | Bluetooth→802.15.4 | 312 | 333 | 354 |
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+--------------------+---------------------+---------------------------------+
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nRF53 family
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^^^^^^^^^^^^
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+--------------------+---------------------+---------------------------------+
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| Bluetooth activity | Direction | Timings (min | mean | max) [µs] |
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+====================+=====================+=================================+
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| advertisement | 802.15.4→Bluetooth | 320 | 346 | 505 |
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+--------------------+---------------------+---------------------------------+
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| advertisement | Bluetooth→802.15.4 | 324 | 335 | 352 |
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+--------------------+---------------------+---------------------------------+
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| scanning | 802.15.4→Bluetooth | 298 | 315 | 328 |
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+--------------------+---------------------+---------------------------------+
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| scanning | Bluetooth→802.15.4 | 290 | 292 | 305 |
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+--------------------+---------------------+---------------------------------+
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| connection | 802.15.4→Bluetooth | 375 | 388 | 401 |
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+--------------------+---------------------+---------------------------------+
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| connection | Bluetooth→802.15.4 | 379 | 398 | 418 |
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+--------------------+---------------------+---------------------------------+
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nRF54L family
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^^^^^^^^^^^^^
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+--------------------+---------------------+---------------------------------+
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| Bluetooth activity | Direction | Timings (min | mean | max) [µs] |
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+====================+=====================+=================================+
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| advertisement | 802.15.4→Bluetooth | 184 | 268 | 273 |
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+--------------------+---------------------+---------------------------------+
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| advertisement | Bluetooth→802.15.4 | 171 | 172 | 173 |
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+--------------------+---------------------+---------------------------------+
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| scanning | 802.15.4→Bluetooth | 255 | 256 | 257 |
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+--------------------+---------------------+---------------------------------+
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| scanning | Bluetooth→802.15.4 | 149 | 150 | 150 |
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+--------------------+---------------------+---------------------------------+
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| connection | 802.15.4→Bluetooth | 345 | 348 | 348 |
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+--------------------+---------------------+---------------------------------+
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| connection | Bluetooth→802.15.4 | 195 | 211 | 225 |
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+--------------------+---------------------+---------------------------------+

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