nrf52840 17.1.0 s140 SDK :- examples/dfu/secure_bootloader/pca10056_s140_ble_debug
We are using the secure bootloader with BLE debug and have combined BLE and UART for the DFU bootloader. However, while performing DFU over-the-air (FOTA) from a mobile device, I am trying to send data to print BLE packets using UART. I am able to send only one packet; after that, the transmission stops, and I cannot send additional data. For reference, see the log below.
We call the function from nrf_dfu_ble.c:
static void on_write(ble_dfu_t * p_dfu, ble_evt_t const * p_ble_evt)
{
// Existing code
nrf_drv_uart_tx(&m_uart, data, length);
// Existing code
}
Note: We need to achieve this using only in this SDK version pca10056_s140_ble_debug.
<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: Using settings page.
<debug> nrf_dfu_settings: Copying forbidden parts from backup page.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<info> nrf_dfu_settings: Backing up settings page to address 0xFE000.
<debug> nrf_dfu_settings: Destination settings are identical to source, write not needed. Skipping.
<debug> app: Enter nrf_bootloader_fw_activate
<info> app: No firmware to activate.
<info> app: Boot validation failed. 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 (0x20005998)
<debug> app: timer_activate (0x20005998)
<info> app: Entering DFU mode.
<debug> app: Initializing transports (found: 2)
<debug> nrf_dfu_ble: Initializing BLE DFU transport
<debug> nrf_dfu_ble: Setting up vector table: 0x000E8000
<debug> nrf_dfu_ble: Enabling SoftDevice.
<debug> nrf_dfu_ble: Configuring BLE stack.
<debug> nrf_dfu_ble: Enabling the BLE stack.
<debug> nrf_dfu_ble: No advertising name found
<debug> nrf_dfu_ble: Using default advertising name
<debug> nrf_dfu_ble: Advertising...
<debug> nrf_dfu_ble: BLE DFU transport initialized.
<debug> nrf_dfu_serial_uart: serial_dfu_transport_init()
<debug> nrf_dfu_serial_uart: serial_dfu_transport_init() completed
<info> nrf_dfu_serial_uart: Sending initial byte 0x24
<debug> nrf_dfu_flash: Initializing nrf_fstorage_sd backend.
<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_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: 2)
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_CREATE (command)
<debug> app: timer_stop (0x20005998)
<debug> app: timer_activate (0x20005998)
<debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1
<debug> nrf_dfu_ble: Buffer 0x20006ED8 acquired, len 141 (244)
<debug> nrf_dfu_ble: Copying 141 bytes from p_write_evt->data to p_balloc_buf:
12 8A 01 0A 44 08 01 12|....D...
40 08 01 10 34 1A 02 80|@...4...
02 20 00 28 00 30 00 38|. .(.0.8
E0 F0 03 42 24 08 03 12|...B$...
20 60 23 74 3A 38 1B 65| `#t:8.e
2E 68 F0 F3 05 97 26 76|.h....&v
D3 61 C0 4C 00 F4 D7 E6|.a.L....
B2 44 DE EC 6C 90 75 1E|.D..l.u.
D7 48 00 52 04 08 01 12|.H.R....
00 10 00 1A 40 CA 06 15|....@...
<debug> nrf_dfu_ble: Sending 141 bytes via UART:
12 8A 01 0A 44 08 01 12|....D...
40 08 01 10 34 1A 02 80|@...4...
02 20 00 28 00 30 00 38|. .(.0.8
E0 F0 03 42 24 08 03 12|...B$...
20 60 23 74 3A 38 1B 65| `#t:8.e
2E 68 F0 F3 05 97 26 76|.h....&v
D3 61 C0 4C 00 F4 D7 E6|.a.L....
B2 44 DE EC 6C 90 75 1E|.D..l.u.
D7 48 00 52 04 08 01 12|.H.R....
00 10 00 1A 40 CA 06 15|....@...
<debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_OBJECT_WRITE (command)
<debug> nrf_dfu_ble: Freeing buffer 0x20006ED8
<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: 64
<info> nrf_dfu_validation: Signature required. Checking signature.
<info> nrf_dfu_validation: Calculating hash (len: 64)
<info> nrf_dfu_validation: Verify signature
<info> nrf_dfu_validation: Image verified
<info> nrf_dfu_validation: Total size= 0
<debug> app: Enter nrf_dfu_cache_prepare()
<debug> app: required_size: 0xF860.
<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> nrf_dfu_validation: Write address set to 0x00027000
<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: nrf_fstorage_write(addr=0x000FF000, src=0x200084EC, len=896 bytes), queue usage: 1
<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: 2
<debug> nrf_dfu_flash: nrf_fstorage_write(addr=0x000FE000, src=0x2000816C, len=896 bytes), queue usage: 3
<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> app: timer_stop (0x20005998)
<debug> app: timer_fire (0x20005998)
<info> app: Inactivity timeout.
<debug> app: Resetting bootloader.
<info> nrf_dfu_settings: Backing up settings page to address 0xFE000.
<error> app: Received a fault! id: 0x00004002, pc: 0x00000000, info: 0x2003FF20
