nRF Mesh DFU over the air

Hello,
I'm trying to set up the DFU over the air mesh. Using the mesh SDK 5 and nRF SDK 7.1.0.
Using the DFU example from nrf sdk17.1.0, I successfully ran it.
When I tried to execute the DFU example located in mesh_sdk5, I cannot find my board via NRF connect app and cannot send a DFU package.
After reading some documentation, I have not been able to add DFU features to my application.
How do I add DFU over the air to my mesh network application?
Is it necessary to use the DFU bootloader and then add the application that uses buttonless DFU over mesh on top of it?  If so, how can I connect all this in Segger studio?

On nRF52832, I am using NRF SDK 7.1 and mesh SDK 5.

I appreciate your help in advance!

  • I successfully performed a Mesh DFU using nRF5 SDK for Mesh 5.0.0 in combination with nRF5 SDK 17.0.2 using the example provided in Mesh 5.0.0. I received an ERROR_INVALID_DATA error when I tried to copy parts of the example into my program. From the example, I copied the relevant parts. Can I integrate Mesh DFU into my program this way?

    Yes, the keys are correct. Checked it again.

    My error may be related to how I copied the relevant part from the Mesh DFU example. 

  • I verified that the code I copied from the Mesh DFU example matches the code I have on my DK. After adding some missing stuff, I was able to DFU my DK!

    nrfutil-mesh --verbose dfu serial -pkg blinky.zip -p COM3 -b 115200 --mesh
    Upgrading target on COM3 with DFU package D:\Nordic\mesh-nrfutil\blinky.zip. Flow control is disabled.
    Flushing com-port...
    Opened com-port
    Starting DFU upgrade of type 4, SoftDevice size: 0, bootloader size: 0, application size: 2180
    Sending DFU start packet, afterwards we wait for the flash on target to be initialized before continuing.
    1: PC -> target: 0502aabbccdd
    target -> PC: 0582aabbccdd
    Got echo response
    Sending DFU init packet
    Sending ready packet
    1: PC -> target: 1378fdff040fe9016a5259000000010002000000
    target -> PC: 16a6045900000001000200000059000000010001000000
    target -> PC: 1378fdff04000000000059000000010002000000
    target -> PC: 03847800
    1: PC -> target: 1378fdff040fe9016a5259000000010002000000
    target -> PC: 1378fdff040fe9016a5259000000010002000000
    target -> PC: 03847800
    Sending start packet
    1: PC -> target: 1478fcff0000e9016a52ffffffff2102000000000c
    target -> PC: 0da2010459000000010002000000
    target -> PC: 03847800
    Waiting for 0.0 seconds for flash bank erase to complete.
    Sending firmware file
      [------------------------------------]    1%  00:08:411: PC -> target: 1978fcff0100e9016a520000012075c301005dc301005fc30100
    target -> PC: 03847800
    1: PC -> target: 1978fcff0200e9016a5261c3010063c3010065c3010000000000
    target -> PC: 03847800
      [------------------------------------]    2%  00:08:341: PC -> target: 1978fcff0300e9016a5200000000000000000000000067c30100
    target -> PC: 03847800
    1: PC -> target: 1978fcff0400e9016a5269c30100000000006bc301006dc30100
    target -> PC: 03847800
      [#-----------------------------------]    3%  00:05:371: PC -> target: 1978fcff0500e9016a526fc301006fc301006fc301006fc30100
    target -> PC: 03847800
    1: PC -> target: 1978fcff0600e9016a526fc301006fc301006fc301006fc30100
    target -> PC: 03847800
    ......................
      [##################################--]   95%  00:00:031: PC -> target: 1978fcff8300e9016a52214602a8fff748fe039b002bf4d00198
    target -> PC: 03847800
    1: PC -> target: 1978fcff8400e9016a52d3e90021904702a8fff748fef4e70528
    target -> PC: 03847800
      [###################################-]   97%  00:00:021: PC -> target: 1978fcff8500e9016a5201d0fff712fe04b010bd00bf74c80100
    target -> PC: 03847800
    1: PC -> target: 1978fcff8600e9016a5215c80100000000000d0e0f1000000000
    target -> PC: 03847800
      [###################################-]   98%  00:00:001: PC -> target: 1978fcff8700e9016a520338fdd87047000050c8010058c80100
    target -> PC: 03847800
    1: PC -> target: 1978fcff8800e9016a520800000050c8010050c8010008000000
    target -> PC: 03847800
      [####################################]  100%          1: PC -> target: 0d78fcff8900e9016a520090d003
    target -> PC: 03847800
    DFU upgrade took 86.2359998226s
    Closing serial port...
    
    Closing serial port...
    Device programmed.

    However, I see the following output in the debugger:

    nrf_mesh_dfu.c,  593, 	SERIAL TX (type: 65534)
    serial_handler_device.c,  125, Echo data: : AABBCCDD
    nrf_mesh_dfu.c,  418, 	New firmware!
    main.c,   72, DFU type Application
    main.c,  117, Requesting DFU transfer with bank at 0x0004B000
    nrf_mesh_dfu.c,  554, 	RADIO TX! SLOT 0, count 3, interval: periodic, handle: FFFD
    nrf_mesh_dfu.c,  593, 	SERIAL TX (type: 65533)
    nrf_mesh_dfu.c,  554, 	RADIO TX! SLOT 0, count 3, interval: periodic, handle: FFFD
    nrf_mesh_dfu.c,  593, 	SERIAL TX (type: 65533)
    nrf_mesh_dfu.c,  458, 	DFU start
    nrf_mesh_dfu.c,  554, 	RADIO TX! SLOT 6, count 6, interval: exponential, handle: FFFC
    nrf_mesh_dfu.c,  357, Erase complete (0x4B000)
    nrf_mesh_dfu.c,  361, Flash idle.
    nrf_mesh_dfu.c,  482, 	DFU segment rx: 1/137
    nrf_mesh_dfu.c,  554, 	RADIO TX! SLOT 7, count 3, interval: exponential, handle: FFFC
    nrf_mesh_dfu.c,  352, Write complete (0x2000FE98)
    nrf_mesh_dfu.c,  361, Flash idle.
    nrf_mesh_dfu.c,  482, 	DFU segment rx: 2/137
    nrf_mesh_dfu.c,  554, 	RADIO TX! SLOT 1, count 3, interval: exponential, handle: FFFC
    nrf_mesh_dfu.c,  352, Write complete (0x2000FE98)
    nrf_mesh_dfu.c,  361, Flash idle.
    nrf_mesh_dfu.c,  482, 	DFU segment rx: 3/137
    nrf_mesh_dfu.c,  554, 	RADIO TX! SLOT 2, count 3, interval: exponential, handle: FFFC
    nrf_mesh_dfu.c,  352, Write complete (0x2000FE98)
    nrf_mesh_dfu.c,  361, Flash idle.
    ............
    nrf_mesh_dfu.c,  482, 	DFU segment rx: 135/137
    nrf_mesh_dfu.c,  554, 	RADIO TX! SLOT 3, count 3, interval: exponential, handle: FFFC
    nrf_mesh_dfu.c,  352, Write complete (0x2000FE98)
    nrf_mesh_dfu.c,  361, Flash idle.
    nrf_mesh_dfu.c,  482, 	DFU segment rx: 136/137
    nrf_mesh_dfu.c,  554, 	RADIO TX! SLOT 4, count 3, interval: exponential, handle: FFFC
    nrf_mesh_dfu.c,  352, Write complete (0x2000FE98)
    nrf_mesh_dfu.c,  361, Flash idle.
    nrf_mesh_dfu.c,  482, 	DFU segment rx: 137/137
    nrf_mesh_dfu.c,  629, 	TIMER set: 30000000us delay (@117850342)
    nrf_mesh_dfu.c,  554, 	RADIO TX! SLOT 5, count 3, interval: exponential, handle: FFFC
    nrf_mesh_dfu.c,  352, Write complete (0x2000FE98)
    nrf_mesh_dfu.c,  361, Flash idle.

    As a result, my DK has two lights on and does not go to the new program I updated to (blinky example).

    After restarting the device, it returns back to my program and not to the blinky example.

  • You need to let it wait a few seconds (10 seconds?) after it says "Device programmed.", and it should restart into the new FW. Please try with the unmodified DFU example first, to make sure that everything is set up correctly before you try to apply this to your own application. 

    BR,
    Edvin

  •   Have you tried DFU with other examples, instead of the Blinky? have you been able to flash them? I am only able to flash the Blinky 

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