how to update phy from 1M to 2M

RE: how to update phy from 1M to 2M

ell_pass — Tue, 01 Nov 2022 07:46:36 GMT

Actually, I just use a pristine build rather than build. I also don't understand why it works in the sample but not in my program.

RE: how to update phy from 1M to 2M

Kenneth — Mon, 31 Oct 2022 13:17:08 GMT

It is strange that it fails to build, if the only change you did was to add CONFIG_BT_AUTO_PHY_UPDATE=n to both prj.conf and \child_image\hci_rpmsg\boards\nrf5340dk_nrf5340_cpunet.conf

Maybe try with a pristine build?

Kenneth

RE: how to update phy from 1M to 2M

ell_pass — Mon, 31 Oct 2022 09:20:21 GMT

[quote userid="2111" url="~/f/nordic-q-a/93302/how-to-update-phy-from-1m-to-2m/392858"]you can disable the auto-initiate PHY uppdate procedure by setting this option to =n:[/quote]

When I tried to add "CONFIG_BT_AUTO_PHY_UPDATE = n" into prj.conf, it encountered an error.

error: Aborting due to Kconfig warnings

CMake Error at F:/v1.9.1/zephyr/cmake/kconfig.cmake:272 (message):
  command failed with return code: 1
Call Stack (most recent call first):
  F:/v1.9.1/zephyr/cmake/app/boilerplate.cmake:544 (include)
  F:/v1.9.1/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:24 (include)
  F:/v1.9.1/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:35 (include_boilerplate)
  CMakeLists.txt:13 (find_package)

Kconfig:

execute_process(
  COMMAND ${CMAKE_COMMAND} -E env
  ${COMMON_KCONFIG_ENV_SETTINGS}
  SHIELD_AS_LIST=${SHIELD_AS_LIST_ESCAPED_COMMAND}
  ${PYTHON_EXECUTABLE}
  ${ZEPHYR_BASE}/scripts/kconfig/kconfig.py
  --zephyr-base=${ZEPHYR_BASE}
  ${input_configs_are_handwritten}
  ${KCONFIG_ROOT}
  ${DOTCONFIG}
  ${AUTOCONF_H}
  ${PARSED_KCONFIG_SOURCES_TXT}
  ${input_configs}
  WORKING_DIRECTORY ${APPLICATION_SOURCE_DIR}
  # The working directory is set to the app dir such that the user
  # can use relative paths in CONF_FILE, e.g. CONF_FILE=nrf5.conf
  RESULT_VARIABLE ret
  )
if(NOT "${ret}" STREQUAL "0")
  message(FATAL_ERROR "command failed with return code: ${ret}")
endif()

This is where the error occurs.

if(NOT "${ret}" STREQUAL "0")
  message(FATAL_ERROR "command failed with return code: ${ret}")
endif()

When I tried to add "CONFIG_BT_AUTO_PHY_UPDATE = n" into nrf5340dk_nrf5340_cpunet.conf (\child_image\hci_rpmsg\boards\nrf5340dk_nrf5340_cpunet.conf), it encountered an error.

F:/EEG/1018.central_uart/child_image/hci_rpmsg/boards/nrf5340dk_nrf5340_cpunet.conf:26: warning: attempt to assign the value ' n' to the undefined symbol BT_AUTO_PHY_UPDATE 

error: Aborting due to Kconfig warnings

CMake Error at F:/v1.9.1/zephyr/cmake/kconfig.cmake:272 (message):
  command failed with return code: 1
Call Stack (most recent call first):
  F:/v1.9.1/zephyr/cmake/app/boilerplate.cmake:544 (include)
  F:/v1.9.1/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:24 (include)
  F:/v1.9.1/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:35 (include_boilerplate)
  CMakeLists.txt:5 (find_package)

Kconfig:(where errors occurs)

  if(NOT ${ret} EQUAL "0")
    message(FATAL_ERROR "CMake generation for ${ACI_NAME} failed, aborting. Command: ${ret}")
  endif()

RE: how to update phy from 1M to 2M

Kenneth — Thu, 27 Oct 2022 13:52:13 GMT

Hello,

You may find this useful:
Building a Bluetooth application on nRF Connect SDK - Part 3 Optimizing the connection

To have better control of the PHy update you can disable the auto-initiate PHY uppdate procedure by setting this option to =n:
https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/kconfig/index.html#CONFIG_BT_AUTO_PHY_UPDATE

And finally, to understand and observe the difference, I recommend to have an nRF sniffer running in parallell, then you can actually see the transmission on-air to observe what/where etc:
https://www.nordicsemi.com/Products/Development-tools/nrf-sniffer-for-bluetooth-le
(link to doc: https://infocenter.nordicsemi.com/topic/ug_sniffer_ble/UG/sniffer_ble/intro.html)

Kenneth