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  • Case ID: 220584
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BLE_App_Buttonless_DFU Example not Operating after slight code changes.

BendaEng

Hi, 

I am trying to modify the code in the BLE_App_Buttonless_DFU_pca10040_s132 example is SES. Without any modification the code compiles fine and can be recognized by nRF Connect. However, when I make small code changes the program still compiles and flashes but the nRF52832 device cannot be seen or connected to in nRF Connect. Using J-Link RTT Viewer V6.40 I see the following output. Does anyone know what this may mean?

<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: CRC check of app failed. Return 1
<info> nrf_dfu_settings: Backing up settings page to address 0x7E000.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<debug> app: Running nrf_bootloader_app_start with address: 0x00001000
<debug> app: Disabling interrupts. NVIC->ICER[0]: 0x0
<debug> app: running irq table set
<debug> app: After running irq table set
: 

Thanks for the help!

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  • 0

    Hello even i am facing the same trouble but my issue is not with respect to CRC i have posted the log below. can someone help me out?

    <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> app: Enter nrf_bootloader_fw_activate
    <info> app: No firmware to activate.
    <debug> app: Enter nrf_dfu_app_is_valid
    <debug> app: Return true. App was valid
    <debug> app: Running nrf_bootloader_app_start with address: 0x00001000
    <debug> app: Disabling interrupts. NVIC->ICER[0]: 0x0
    <debug> app: running irq table set
    <debug> app: After running irq table set

  • 0 in reply to Namdev

    <debug> app: Enter main loop
    <debug> nrf_dfu_ble: Connected
    <debug> nrf_dfu_ble: Received BLE_GAP_EVT_DATA_LENGTH_UPDATE_REQUEST.
    <debug> nrf_dfu_ble: Received BLE_GAP_EVT_DATA_LENGTH_UPDATE (27, max_rx_time 328).
    <debug> nrf_dfu_ble: Received BLE_GAP_EVT_PHY_UPDATE_REQUEST.
    <debug> nrf_dfu_ble: Received BLE_GAP_EVT_PHY_UPDATE (RX:2, TX:2, status:0)
    <debug> nrf_dfu_ble: Received BLE_GAP_EVT_CONN_PARAM_UPDATE
    <debug> nrf_dfu_ble: max_conn_interval: 12
    <debug> nrf_dfu_ble: min_conn_interval: 12
    <debug> nrf_dfu_ble: slave_latency: 0
    <debug> nrf_dfu_ble: conn_sup_timeout: 600
    <debug> nrf_dfu_ble: Received BLE_GAP_EVT_CONN_PARAM_UPDATE
    <debug> nrf_dfu_ble: max_conn_interval: 6
    <debug> nrf_dfu_ble: min_conn_interval: 6
    <debug> nrf_dfu_ble: slave_latency: 0
    <debug> nrf_dfu_ble: conn_sup_timeout: 500
    <debug> nrf_dfu_ble: Received BLE_GAP_EVT_CONN_PARAM_UPDATE
    <debug> nrf_dfu_ble: max_conn_interval: 12
    <debug> nrf_dfu_ble: min_conn_interval: 12
    <debug> nrf_dfu_ble: slave_latency: 0
    <debug> nrf_dfu_ble: conn_sup_timeout: 600
    <debug> nrf_dfu_ble: Received BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST (request: 517, reply: 247).
    <debug> nrf_dfu_ble: Received BLE_GAP_EVT_DATA_LENGTH_UPDATE_REQUEST.
    <debug> nrf_dfu_ble: Received BLE_GAP_EVT_DATA_LENGTH_UPDATE (251, max_rx_time 2120).
    <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_ble: Set receipt notif
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_RECEIPT_NOTIF_SET
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> app: Shutting down transports (found: 1)
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (command)
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> nrf_dfu_ble: Buffer 0x20007D30 acquired, len 140 (244)
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (command)
    <debug> nrf_dfu_ble: Freeing buffer 0x20007D30
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <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_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (command)
    <debug> nrf_dfu_validation: PB: Init packet data len: 63
    <info> nrf_dfu_validation: Signature required. Checking signature.
    <info> nrf_dfu_validation: Calculating init packet hash (init packet len: 63)
    <info> nrf_dfu_validation: Verify signature
    <info> nrf_dfu_validation: Image verified
    <debug> app: Enter nrf_dfu_cache_prepare()
    <debug> app: required_size: 0x6A0.
    <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: 0x01: Size: 0x6A0
    <debug> app: Bank 1 code: 0x00: Size: 0x0
    <debug> app: pass: 0.
    <debug> app: cache_address: 0x27000.
    <debug> app: cache_too_small: false.
    <debug> app: keep_firmware: false.
    <debug> app: delete_more: false.
    <debug> nrf_dfu_validation: Write address set to 0x00027000
    <debug> nrf_dfu_settings: Writing settings...
    <debug> nrf_dfu_settings: Erasing old settings at: 0x0007F000
    <debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007F000, len=1 pages), queue usage: 0
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007F000, src=0x20008F84, len=440 bytes), queue usage: 1
    <debug> nrf_dfu_req_handler: Writing valid init command to flash.
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <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_flash: Flash erase success: addr=0x0007F000, pending 1
    <debug> nrf_dfu_flash: Flash write success: addr=0x0007F000, pending 0
    <debug> app: Shutting down transports (found: 1)
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (data)
    <debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x00027000, len=1 pages), queue usage: 0
    <debug> nrf_dfu_req_handler: Creating object with size: 1696. Offset: 0x00000000, CRC: 0x00000000
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> nrf_dfu_ble: Buffer 0x20007D30 acquired, len 244 (244)
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00027000, src=0x20007D30, len=244 bytes), queue usage: 1
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> nrf_dfu_ble: Buffer 0x20007E24 acquired, len 244 (244)
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000270F4, src=0x20007E24, len=244 bytes), queue usage: 2
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> nrf_dfu_ble: Buffer 0x20007F18 acquired, len 244 (244)
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000271E8, src=0x20007F18, len=244 bytes), queue usage: 3
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> nrf_dfu_ble: Buffer 0x2000800C acquired, len 244 (244)
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000272DC, src=0x2000800C, len=244 bytes), queue usage: 4
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> nrf_dfu_ble: Buffer 0x20008100 acquired, len 244 (244)
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000273D0, src=0x20008100, len=244 bytes), queue usage: 5
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> nrf_dfu_flash: Flash erase success: addr=0x00027000, pending 5
    <debug> nrf_dfu_flash: Flash write success: addr=0x00027000, pending 4
    <debug> nrf_dfu_ble: Freeing buffer 0x20007D30
    <debug> nrf_dfu_flash: Flash write success: addr=0x000270F4, pending 3
    <debug> nrf_dfu_ble: Freeing buffer 0x20007E24
    <debug> nrf_dfu_flash: Flash write success: addr=0x000271E8, pending 2
    <debug> nrf_dfu_ble: Freeing buffer 0x20007F18
    <debug> nrf_dfu_flash: Flash write success: addr=0x000272DC, pending 1
    <debug> nrf_dfu_ble: Freeing buffer 0x2000800C
    <debug> nrf_dfu_flash: Flash write success: addr=0x000273D0, pending 0
    <debug> nrf_dfu_ble: Freeing buffer 0x20008100
    <debug> nrf_dfu_ble: Buffer 0x20008100 acquired, len 244 (244)
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000274C4, src=0x20008100, len=244 bytes), queue usage: 0
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> nrf_dfu_ble: Buffer 0x2000800C acquired, len 232 (244)
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (data)
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000275B8, src=0x2000800C, len=232 bytes), queue usage: 1
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_CRC_GET (data)
    <debug> nrf_dfu_req_handler: Offset:1696, CRC:0xC8F8C92F
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> nrf_dfu_flash: Flash write success: addr=0x000274C4, pending 1
    <debug> nrf_dfu_ble: Freeing buffer 0x20008100
    <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_EXECUTE (data)
    <debug> nrf_dfu_flash: Flash write success: addr=0x000275B8, pending 0
    <debug> nrf_dfu_ble: Freeing buffer 0x2000800C
    <debug> nrf_dfu_req_handler: Postvalidation of firmware image.
    <debug> nrf_dfu_validation: Hash verification. Firmware start address: 0x27000, size: 0x6A0
    <debug> nrf_dfu_validation: Invalidating old application in bank 0.
    <debug> nrf_dfu_settings: Writing settings...
    <debug> nrf_dfu_settings: Erasing old settings at: 0x0007F000
    <debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007F000, len=1 pages), queue usage: 0
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007F000, src=0x20008F84, len=440 bytes), queue usage: 1
    <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
    <debug> nrf_dfu_flash: Flash erase success: addr=0x0007F000, pending 1
    <debug> nrf_dfu_flash: Flash write success: addr=0x0007F000, pending 0
    <debug> nrf_dfu_req_handler: All flash operations have completed. DFU completed.
    <debug> app: Shutting down transports (found: 1)
    <debug> nrf_dfu_ble: Shutting down BLE transport.
    <debug> nrf_dfu_ble: Disconnecting.
    <debug> nrf_dfu_ble: BLE transport shut down.
    <debug> app: Resetting bootloader.
    <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> app: Enter nrf_bootloader_fw_activate
    <debug> app: Valid App
    <debug> app: Enter nrf_dfu_app_continue
    <info> nrf_bootloader_wdt: WDT is not enabled
    <debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x00026000, len=1 pages), queue usage: 0
    <debug> nrf_dfu_flash: Flash erase success: addr=0x00026000, pending 0
    <debug> app: Copying 0x27000 to 0x26000, size: 0x6A0
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x00026000, src=0x00027000, len=1696 bytes), queue usage: 1
    <debug> nrf_dfu_flash: Flash write success: addr=0x00026000, pending 0
    <debug> nrf_dfu_settings: Writing settings...
    <debug> nrf_dfu_settings: Erasing old settings at: 0x0007F000
    <debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007F000, len=1 pages), queue usage: 1
    <debug> nrf_dfu_flash: Flash erase success: addr=0x0007F000, pending 0
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007F000, src=0x20008F84, len=440 bytes), queue usage: 1
    <debug> nrf_dfu_flash: Flash write success: addr=0x0007F000, pending 0
    <debug> app: Setting app as valid
    <debug> nrf_dfu_settings: Writing settings...
    <debug> nrf_dfu_settings: Erasing old settings at: 0x0007F000
    <debug> nrf_dfu_flash: nrf_fstorage_erase(addr=0x0x0007F000, len=1 pages), queue usage: 1
    <debug> nrf_dfu_flash: Flash erase success: addr=0x0007F000, pending 0
    <debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x0007F000, src=0x20008F84, len=440 bytes), queue usage: 1
    <debug> nrf_dfu_flash: Flash write success: addr=0x0007F000, pending 0
    <debug> app: Resetting bootloader.
    <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> app: Enter nrf_bootloader_fw_activate
    <info> app: No firmware to activate.
    <debug> app: Enter nrf_dfu_app_is_valid
    <debug> app: Return true. App was valid
    <debug> app: Running nrf_bootloader_app_start with address: 0x00001000
    <debug> app: Disabling interrupts. NVIC->ICER[0]: 0x0
    <debug> app: running irq table set
    <debug> app: After running irq table set

  • 0 in reply to Namdev

    Please  create a new case for your question. Please describe with more information about how you test and what you observed. 

    It looks like the bootloader working fine. You may need to check if the app can run after the update. 

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