Sending Response: [0x4, 0xB] in serial DFU ?

[mayuri]

 Hi,

I m using nrf52840 and m doing DFU over serial.

one side is master controller and other end is NRF DFU serial(secure bootloader uart debug code).

After sending init packet. i m getting correct CRC value from NRF by sending value 03.

And then i m sending 04 command.I m getting 0b response in master mcu. 

Here following error on nrf side

<warning> nrf_dfu_ver_validation: SD req not met.
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0xB
<warning> nrf_dfu_serial: DFU request completed with result: 0xB
<debug> nrf_dfu_serial: Sending Response: [0x4, 0xB]
<debug> app: Shutting down transports (found: 1)

i have no idea why its coming response like 0b.

i would appreciate any help

thnaks in advance.

[Turbo J]

mayuri said:

warning> nrf_dfu_ver_validation: SD req not met.

The softdevice in the chip is different from the softdevice required in the init packet.

You probably need to update the softdevice before you can DFU the new application.

[mayuri]

Now i get 01 response from nrf.As i follow this link.

After i started to sending image file from master mcu.

i m getting an error from NRF

nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x00026000, len=1 pages), queue usage: 1

<error> app: Received an error: 0x00000001!

Here is my NRF log

<info> app: Inside main
<debug> app: In nrf_bootloader_init
<debug> nrf_dfu_settings: Calling nrf_dfu_settings_init()...
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> nrf_dfu_settings: Settings OK
<debug> app: Enter nrf_bootloader_fw_activate
<info> app: No firmware to activate.
<debug> app: Enter nrf_dfu_app_is_valid
<debug> app: No valid app to boot.
<debug> app: DFU mode because app is not valid.
<info> nrf_bootloader_wdt: WDT is not enabled
<debug> app: in weak nrf_dfu_init_user
<debug> app: timer_stop (0x20000024)
<debug> app: timer_activate (0x20000024)
<info> app: Entering DFU mode.
<debug> app: Initializing transports (found: 1)
<debug> nrf_dfu_serial_uart: serial_dfu_transport_init()
<debug> nrf_dfu_serial_uart: serial_dfu_transport_init() completed
<debug> nrf_dfu_flash: Initializing nrf_fstorage_nvmc backend.
<debug> app: Enter main loop
<debug> app: Shutting down transports (found: 1)
<debug> nrf_dfu_serial: Received ping 1
<info> nrf_dfu_serial_uart: Allocated buffer 2000378C
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_PING
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x9, 0x1]
<debug> app: Shutting down transports (found: 1)
<debug> nrf_dfu_serial: Set receipt notif target: 0
<info> nrf_dfu_serial_uart: Allocated buffer 2000378C
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_RECEIPT_NOTIF_SET
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x2, 0x1]
<debug> app: Shutting down transports (found: 1)
<debug> nrf_dfu_serial: Received serial mtu
<info> nrf_dfu_serial_uart: Allocated buffer 2000378C
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_MTU_GET
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x7, 0x1]
<debug> app: Shutting down transports (found: 1)
<info> nrf_dfu_serial_uart: Allocated buffer 2000378C
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_SELECT (command)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x6, 0x1]
<debug> app: Shutting down transports (found: 1)
<info> nrf_dfu_serial_uart: Allocated buffer 2000378C
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (command)
<debug> app: timer_stop (0x20000024)
<debug> app: timer_activate (0x20000024)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x1, 0x1]
<debug> app: Shutting down transports (found: 1)
<info> nrf_dfu_serial_uart: Allocated buffer 20003810
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (command)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<debug> app: Shutting down transports (found: 1)
<info> nrf_dfu_serial_uart: Allocated buffer 2000378C
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (command)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<debug> app: Shutting down transports (found: 1)
<info> nrf_dfu_serial_uart: Allocated buffer 20003810
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (command)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<debug> app: Shutting down transports (found: 1)
<info> nrf_dfu_serial_uart: Allocated buffer 20003810
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_CRC_GET (command)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x3, 0x1]
<debug> app: Shutting down transports (found: 1)
<info> nrf_dfu_serial_uart: Allocated buffer 20003810
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (command)
<debug> nrf_dfu_validation: PB: Init packet data len: 64
<info> nrf_dfu_validation: Signature required. Checking signature.
<info> nrf_dfu_validation: Calculating init packet hash (init packet len: 64)
<info> nrf_dfu_validation: Verify signature
<info> nrf_dfu_validation: Image verified
<debug> app: Enter nrf_dfu_cache_prepare()
<debug> app: required_size: 0xACF4.
<debug> app: single_bank: false.
<debug> app: keep_app: false.
<debug> app: keep_softdevice: true.
<debug> app: SD_PRESENT: true.
<debug> app: Bank contents:
<debug> app: Bank 0 code: 0x00: Size: 0x0
<debug> app: Bank 1 code: 0x00: Size: 0x0
<debug> app: pass: 0.
<debug> app: cache_address: 0x26000.
<debug> app: cache_too_small: false.
<debug> app: keep_firmware: false.
<debug> app: delete_more: false.
<debug> nrf_dfu_validation: Write address set to 0x00026000
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x000FF000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x000FF000, len=1 pages), queue usage: 0
<debug> nrf_dfu_flash: Flash erase success: addr=0x000FF000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000FF000, src=0x20003D14, len=348 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000FF000, pending 0
<info> nrf_dfu_settings: Backing up settings page to address 0xFE000.
<debug> nrf_dfu_settings: Writing settings...
<debug> nrf_dfu_settings: Erasing old settings at: 0x000FE000
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x000FE000, len=1 pages), queue usage: 1
<debug> nrf_dfu_flash: Flash erase success: addr=0x000FE000, pending 0
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000FE000, src=0x20003E70, len=348 bytes), queue usage: 1
<debug> nrf_dfu_flash: Flash write success: addr=0x000FE000, pending 0
<debug> nrf_dfu_req_handler: Writing valid init command to flash.
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x4, 0x1]
<debug> app: Shutting down transports (found: 1)
<info> nrf_dfu_serial_uart: Allocated buffer 20003810
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_SELECT (data)
<debug> nrf_dfu_req_handler: crc = 0x0, offset = 0x0, max_size = 0x1000
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_serial: Sending Response: [0x6, 0x1]
<debug> app: Shutting down transports (found: 1)
<info> nrf_dfu_serial_uart: Allocated buffer 20003810
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (data)
<debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x00026000, len=1 pages), queue usage: 1
<error> app: Received an error: 0x00000001!

[mayuri]

yes, first time it entered into bootloader.

how do i check whether its enter into bootloader or not?

i put some log on bootloader code. But that also not printed in the second time while giving command .

[Vidar Berg]

mayuri said:

how do i check whether its enter into bootloader or not?

 If you have LED(s) on your board you can use those to indicate when you are in DFU mode.

mayuri said:

i put some log on bootloader code. But that also not printed in the second time while giving command .

 This is a known limitation with RTT logging in our examples (it does not work when transitioning from main app to bootloader and vice versa). You may try to disable logging in the app (temporarily) to see if that helps get you the log messages from the bootloader.

[mayuri]

It entered boatloader after few seconds it back to application code.

But i set NRF_BL_DFU_INACTIVITY_TIMEOUT_MS 120000.

i dont know what do to next?

[Vidar Berg]

In this test, are you starting the DFU transfer right after you have entered DFU mode, or do you only send the one command to jump from the app to the bootloader? The bootloader should stay in DFU mode for 2 minutes if you just enter DFU mode and do nothing.

[mayuri]

1) First, i m programming merged (sd+ booloader hex) in the NRF through jlink.

2) Then i m sending appilaction bin to NRF through uart from MASTER controller.

3) It s updating the firmware and entering into application mode.

4) Above scenario is working fine.

5) Second attempt.i send a command to running application.Its entering into bootloader for few seconds.

And then back to application mode.

Kindly guide me 

[Vidar Berg]

Point 1-4 is clear, but I'm wondering if you are attempting to start the DFU transfer in step 5 or if you are only sending that one command to enter bootloader mode.

[mayuri]

i m sending only command to enter booloader (second time).

1) when i connect rtt viewer , it hold on (ie bootloader mode.)

At the time i m sending dfu transfer, i not getting even ping response.

2) when i remove rtt viewer,it is entering into bootloader and then resetting back to previous application mode.

I m not including BL setting in Step 1.

it may cause any error

[mayuri]

it s working now.

the problem is application watch dog timer.now i increased watchdog greater than bootloader tinne inactivity. the reset wont happen it again.

Thanks for your support