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Secure DFU ble debug code

hello

I am using sdk 15.3 example code of DFU (secure_boot loader \ pca10040_ble)

I want to debug code but i can not.I getting error like that "Error Flash Download Failed - Cortex-m4"

I am using s132_nrf52_6.1.1_softdevice .i have using nrf52832 board and Compiler Keil 5

Also i have setting address of IROM1 = 0x78000 and Size 0x6000,  IRAM1 =0x200057B8 and size 0xa848.

Please help me to resolve these query

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  • Thanks for confirming that it's not a build issue. Could you also include the log when you are attempting to flash the device? 

    Also, try to do a full chip erase first with nrfjprog or with the programmer app. 

    e.g., nrfjprog --erase

  • Hello 

    I am also done with Full chip erase but still we found same issue.

    please refer attachment file this is log file of flash

    //*****************************************Log File ***************************************************//Log file of flash

    *** Using Compiler 'V5.05 update 2 (build 169)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
    Build target 'nrf52832_xxaa_s132'
    compiling nrf_bootloader_app_start_final.c...
    linking...
    Program Size: Code=28552 RO-data=2296 RW-data=188 ZI-data=25912
    FromELF: creating hex file...
    ".\_build\nrf52832_xxaa_s132.axf" - 0 Error(s), 0 Warning(s).
    Build Time Elapsed: 00:00:03
    Load "D:\\CurrentProject\\Nordic_Common_Code\\SoftDevice\\nRF5_SDK_15.3.0_59ac345\\bkup\\nRF5_SDK_15.3.0_59ac345\\examples\\dfu\\secure_bootloader\\pca10040_ble\\arm5_no_packs\\_build\\nrf52832_xxaa_s132.axf"
    Error: Flash Download failed - Target DLL has been cancelled
    Flash Load finished at 13:51:02
    Load "D:\\CurrentProject\\Nordic_Common_Code\\SoftDevice\\nRF5_SDK_15.3.0_59ac345\\bkup\\nRF5_SDK_15.3.0_59ac345\\examples\\dfu\\secure_bootloader\\pca10040_ble\\arm5_no_packs\\_build\\nrf52832_xxaa_s132.axf"
    Set JLink Project File to "D:\CurrentProject\Nordic_Common_Code\SoftDevice\nRF5_SDK_15.3.0_59ac345\bkup\nRF5_SDK_15.3.0_59ac345\examples\dfu\secure_bootloader\pca10040_ble\arm5_no_packs\JLinkSettings.ini"
    * JLink Info: Device "NRF52832_XXAA" selected.

    JLink info:
    ------------
    DLL: V6.40 , compiled Oct 26 2018 15:06:02
    Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Jul 12 2018 11:44:41
    Hardware: V1.00
    S/N : 681936529

    * JLink Info: Found SW-DP with ID 0x2BA01477
    * JLink Info: Found SW-DP with ID 0x2BA01477
    * JLink Info: Scanning AP map to find all available APs
    * JLink Info: AP[2]: Stopped AP scan as end of AP map has been reached
    * JLink Info: AP[0]: AHB-AP (IDR: 0x24770011)
    * JLink Info: AP[1]: JTAG-AP (IDR: 0x02880000)
    * JLink Info: Iterating through AP map to find AHB-AP to use
    * JLink Info: AP[0]: Core found
    * JLink Info: AP[0]: AHB-AP ROM base: 0xE00FF000
    * JLink Info: CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
    * JLink Info: Found Cortex-M4 r0p1, Little endian.
    * JLink Info: FPUnit: 6 code (BP) slots and 2 literal slots
    * JLink Info: CoreSight components:
    * JLink Info: ROMTbl[0] @ E00FF000
    * JLink Info: ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS-M7
    * JLink Info: ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT
    * JLink Info: ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB
    * JLink Info: ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM
    * JLink Info: ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU
    * JLink Info: ROMTbl[0][5]: E0041000, CID: B105900D, PID: 000BB925 ETM
    ROMTableAddr = 0xE00FF000
    * JLink Info: Reset: Halt core after reset via DEMCR.VC_CORERESET.
    * JLink Info: Reset: Reset device via AIRCR.SYSRESETREQ.

    Target info:
    ------------
    Device: nRF52832_xxAA
    VTarget = 3.300V
    State of Pins:
    TCK: 0, TDI: 1, TDO: 1, TMS: 1, TRES: 1, TRST: 1
    Hardware-Breakpoints: 6
    Software-Breakpoints: 8192
    Watchpoints: 4
    JTAG speed: 1000 kHz

    Erase Failed!
    Error: Flash Download failed - "Cortex-M4"
    Flash Load finished at 13:53:46

  • Hi,

    The IC does not have a JTAG interface, only SWD. Maybe that's why the erase fails. Check if "SW" is selected in the Jlink settings. 

  • Hello 

    I am already set SW in Setting 

    Please Refer attachment file.

    jtag setting

  • That is strange. Are you able to program and debug other SDK examples? Have you tried to program the same hex with nrfjprog?

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