Instaburst on a nRF52840

RE: Instaburst on a nRF52840

Gerry — Wed, 23 May 2018 09:21:40 GMT

Thanks Bjorn

RE: Instaburst on a nRF52840

Bjørn Kvaale — Wed, 23 May 2018 08:04:46 GMT

You have to use cmake unfortunately. Talked to one of the mesh developers & he said you can enable it via:

cmake -DEXPERIMENTAL_INSTABURST_ENABLED=ON

You also want to switch out mesh/core/src/core_tx_adv.c with

mesh/core/src/core_tx_instaburst.c

& add these files too:

mesh/bearer/src/instaburst.c

mesh/bearer/src/instaburst_rx.c

mesh/bearer/src/instaburst_tx.c

mesh/bearer/src/adv_ext_tx.c

mesh/bearer/src/adv_ext_packet.c

Then, you can generate a new SES project via cmake with the command:

cmake -DGENERATE_SES_PROJECTS=ON

Instaburst is unfortunately not Bluetooth Mesh compliant. Take a look at the second paragraph in the link I sent you:

"Instaburst is a Nordic proprietary feature that does not adhere to the Bluetooth Mesh specification. It is currently in an experimental stage, and does not have the same requirements to test coverage, API stability or spec-compliance as the rest of the Nordic nRF5 SDK for Mesh."

RE: Instaburst on a nRF52840

Gerry — Tue, 22 May 2018 18:52:03 GMT

Thanks Bjorn,

I'm not able to remake the project file using CMakeList.txt, since we changed a lot there. If I got this right, changing the following files in the project and setting EXPERIMENTAL_INSTABURST_ENABLED = 1 should also do the job, right?


if (EXPERIMENTAL_INSTABURST_ENABLED)
    set(MESH_CORE_SOURCE_FILES ${MESH_CORE_SOURCE_FILES}
        "${CMAKE_CURRENT_SOURCE_DIR}/src/core_tx_instaburst.c")
else()
    set(MESH_CORE_SOURCE_FILES ${MESH_CORE_SOURCE_FILES}
        "${CMAKE_CURRENT_SOURCE_DIR}/src/core_tx_adv.c")
endif()


if (EXPERIMENTAL_INSTABURST_ENABLED)
    set(MESH_BEARER_SOURCE_FILES ${MESH_BEARER_SOURCE_FILES}
        "${CMAKE_CURRENT_SOURCE_DIR}/src/instaburst.c"
        "${CMAKE_CURRENT_SOURCE_DIR}/src/instaburst_rx.c"
        "${CMAKE_CURRENT_SOURCE_DIR}/src/instaburst_tx.c"
        "${CMAKE_CURRENT_SOURCE_DIR}/src/adv_ext_tx.c"
        "${CMAKE_CURRENT_SOURCE_DIR}/src/adv_ext_packet.c"
        CACHE INTERNAL "")
endif()

We do not have to be compatible with other mesh products, but we want to meet Bluetooth SIG requirements and get our product certified. Is that possible using Instaburst?

RE: Instaburst on a nRF52840

Bjørn Kvaale — Tue, 22 May 2018 11:43:57 GMT

Hi Gerry,

Take a look at "usage in the mesh" section of this link for more info. Should be possible to get instaburst enabled for the 52840.