FRDM K64 debugging using segger jlink debugger.

[kapil_p]

Hi,

I have a FRDM K64 evaluation board and using the MCUXpresso IDE.

I updated the bootloader to OpenSDA segger jlink , and successfully downloaded the code into board , but i want to use a external segger jlink debugger. 

To connect the external debugger used following steps.

1) Made a connection between the segger jlink debugger and K64 - J9.

    

2) Removed the tracks of J8 ,J11 and J12.

My segger is detecting is MCUXpresso but I not able to download the code.

* This is detection of segger.

* The errors generated while downloading the code.

I think i am missing something , I am new in kinetis controller and MCUXpresso.

Thank you.

[BlackNight]

Hi,

I'm wondering about:

>>2) Removed the tracks of J8 ,J11 and J12.

Why did you do this? To debug the FRDM-K64F with an external debug probe the only thing you have to do is to connect the cable to the SWD debug header, see Debugging the FRDM-K64F with P&E Multilink | MCU on Eclipse 

I hope this helps,

Erich

[kapil_p]

Hi Erich

Thank you for help

I read in some documents and also I searched on google some people mentioned that to use the Segger Jlink we have cut the track of J8 and J12 , this is the link where I found FRDM-K64F alternative JTAG Debugger - Question | Mbed 

Another doubt is when I try to download the code error is  

Connect Under Reset

Communication error while accessing MDM-AP.

I don't know what I am missing.

While downloading the Red LED (reset) is blinking.

[BlackNight]

So have you restored the connection/jumpers?

As for the jumpers J12 andd J8, please check the schematics:

They are used to disconnect the DIO and CLK signal from the on-board K20 (OpenSDA) to the target MCU.

So it might depend on what firmware you are running on the K20, but on my boards with the latest bootloader and firmware the K20/OpenSDA is not doing anything with these lines if I'm not using the K20. I'm using the 'generic' Segger firmware on my K64F and I can debug my board with an external J-Link without changing any jumpers.

Can you check again your wiring?

I hope this helps,

Erich

[kapil_p]

Hi Erich

Yes I restored the jumpers.

I am also using a generic Segger firmware (02_OpenSDA_FRDM-K64F.bin) on my K64 still I'm getting the same error.

First time I updated the boot loader and downloaded the code successfully , but I tried again it is not working. ans showing the following error.

I am not understanding which step I'm missing. 

1) Updated the firmware (Segger)  and downloaded the code ,  first time worked , after that not worked.

2) To use a external J-link debugger removed the tracks of J8,J12,J11 and tried to download but not worked.

3) Again restored the all jumpers and tried to download the code , not worked.

Thank you.

[BlackNight]

I think there is something wrong with your J-Link installation?

Can you verify to which installation the IDE points to?

If you are using the J-Link with other IDEs, I suggest you re-run the DLL updater too:

Other than that, can you post the log of the J-Link connection process from the Console view in Eclipse?

I hope this helps,

Erich

[kapil_p]

Hi Erich.

Thank you 

My installation of J-link 

This is the J-link connection process from the Console view in Eclipse

[19-8-2019 10:28:46] Executing Server: "C:\Program Files (x86)\SEGGER\JLink_V644i\JLinkGDBServerCL.exe" -nosilent -swoport 2334 -select USB=528001049 -telnetport 2335 -singlerun -endian little -noir -speed auto -port 2336 -vd -device MK64FN1M0xxx12 -if SWD -halt -reportuseraction
SEGGER J-Link GDB Server V6.44i Command Line Version

JLinkARM.dll V6.44i (DLL compiled May 17 2019 17:34:22)

Command line: -nosilent -swoport 2334 -select USB=528001049 -telnetport 2335 -singlerun -endian little -noir -speed auto -port 2336 -vd -device MK64FN1M0xxx12 -if SWD -halt -reportuseraction
-----GDB Server start settings-----
GDBInit file: none
GDB Server Listening port: 2336
SWO raw output listening port: 2334
Terminal I/O port: 2335
Accept remote connection: localhost only
Generate logfile: off
Verify download: on
Init regs on start: off
Silent mode: off
Single run mode: on
Target connection timeout: 0 ms
------J-Link related settings------
J-Link Host interface: USB
J-Link script: none
J-Link settings file: none
------Target related settings------
Target device: MK64FN1M0xxx12
Target interface: SWD
Target interface speed: auto
Target endian: little

Connecting to J-Link...
J-Link is connected.
Device "MK64FN1M0XXX12" selected.
Firmware: J-Link Lite-Cortex-M V8 compiled Sep 15 2016 12:05:01
Hardware: V8.00
S/N: 528001049
Feature(s): GDB
Checking target voltage...
Target voltage: 3.29 V
Listening on TCP/IP port 2336
Connecting to target...InitTarget()
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[2]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
AP[1]: JTAG-AP (IDR: 0x001C0000)
Iterating through AP map to find AHB-AP to use
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
FPUnit: 0 code (BP) slots and 0 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
ROMTbl[0][1]: E000E000, CID: FFF03D03, PID: 0BB00C05 ???
ROMTbl[0][2]: E0001000, CID: 05E00D0B, PID: 3BB00205 ???
ROMTbl[0][3]: E0002000, CID: 05E00D3B, PID: 2BB00305 ???
ROMTbl[0][4]: E00FF000, CID: FFF43D03, PID: 0BB4C405 ???
ROMTbl[0][5]: E0040000, CID: 05900D0B, PID: 0BB9A105 ???
ROMTbl[0][6]: E0041000, CID: 05900D0B, PID: 0BB92505 ???
ROMTbl[0][7]: E0042000, CID: 05900D0B, PID: 3BB90705 ???
ROMTbl[0][8]: E00FF000, CID: 05100D00, PID: 0BB4C405 ???
InitTarget()
Found SW-DP with ID 0x2BA01477
AP map detection skipped. Manually configured AP map found.
AP[0]: AHB-AP (IDR: Not set)
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
FPUnit: 0 code (BP) slots and 0 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
ROMTbl[0][1]: E000E000, CID: FFF03D03, PID: 0BB00C05 ???
ROMTbl[0][2]: E0001000, CID: 05E00D0B, PID: 3BB00205 ???
ROMTbl[0][3]: E0002000, CID: 05E00D3B, PID: 2BB00305 ???
ROMTbl[0][4]: E00FF000, CID: FFF43D03, PID: 0BB4C405 ???
ROMTbl[0][5]: E0040000, CID: 05900D0B, PID: 0BB9A105 ???
ROMTbl[0][6]: E0041000, CID: 05900D0B, PID: 0BB92505 ???
ROMTbl[0][7]: E0042000, CID: 05900D0B, PID: 3BB90705 ???
ROMTbl[0][8]: E00FF000, CID: 05100D00, PID: 0BB4C405 ???
WARNING: T-bit of XPSR is 0 but should be 1. Changed to 1.
Connected to target
Waiting for GDB connection...Connected to 127.0.0.1
Reading all registers
ERROR: Can not read register 25 (BASEPRI) while CPU is running
ERROR: Can not read register 26 (FAULTMASK) while CPU is running
ERROR: Can not read register 27 (CONTROL) while CPU is running
ERROR: Can not read register 32 (FPSCR) while CPU is running
ERROR: Can not read register 33 (FPS0) while CPU is running
ERROR: Can not read register 34 (FPS1) while CPU is running
ERROR: Can not read register 35 (FPS2) while CPU is running
ERROR: Can not read register 36 (FPS3) while CPU is running
ERROR: Can not read register 37 (FPS4) while CPU is running
ERROR: Can not read register 38 (FPS5) while CPU is running
ERROR: Can not read register 39 (FPS6) while CPU is running
ERROR: Can not read register 40 (FPS7) while CPU is running
ERROR: Can not read register 41 (FPS8) while CPU is running
ERROR: Can not read register 42 (FPS9) while CPU is running
ERROR: Can not read register 43 (FPS10) while CPU is running
ERROR: Can not read register 44 (FPS11) while CPU is running
ERROR: Can not read register 45 (FPS12) while CPU is running
ERROR: Can not read register 46 (FPS13) while CPU is running
ERROR: Can not read register 47 (FPS14) while CPU is running
ERROR: Can not read register 48 (FPS15) while CPU is running
ERROR: Can not read register 49 (FPS16) while CPU is running
ERROR: Can not read register 50 (FPS17) while CPU is running
ERROR: Can not read register 51 (FPS18) while CPU is running
ERROR: Can not read register 52 (FPS19) while CPU is running
ERROR: Can not read register 53 (FPS20) while CPU is running
ERROR: Can not read register 54 (FPS21) while CPU is running
ERROR: Can not read register 55 (FPS22) while CPU is running
ERROR: Can not read register 56 (FPS23) while CPU is running
ERROR: Can not read register 57 (FPS24) while CPU is running
ERROR: Can not read register 58 (FPS25) while CPU is running
ERROR: Can not read register 59 (FPS26) while CPU is running
ERROR: Can not read register 60 (FPS27) while CPU is running
ERROR: Can not read register 61 (FPS28) while CPU is running
ERROR: Can not read register 62 (FPS29) while CPU is running
ERROR: Can not read register 63 (FPS30) while CPU is running
ERROR: Can not read register 64 (FPS31) while CPU is running
ERROR: Can not read register 33 (FPS0) while CPU is running
ERROR: Can not read register 34 (FPS1) while CPU is running
ERROR: Can not read register 35 (FPS2) while CPU is running
ERROR: Can not read register 36 (FPS3) while CPU is running
ERROR: Can not read register 37 (FPS4) while CPU is running
ERROR: Can not read register 38 (FPS5) while CPU is running
ERROR: Can not read register 39 (FPS6) while CPU is running
ERROR: Can not read register 40 (FPS7) while CPU is running
ERROR: Can not read register 41 (FPS8) while CPU is running
ERROR: Can not read register 42 (FPS9) while CPU is running
ERROR: Can not read register 43 (FPS10) while CPU is running
ERROR: Can not read register 44 (FPS11) while CPU is running
ERROR: Can not read register 45 (FPS12) while CPU is running
ERROR: Can not read register 46 (FPS13) while CPU is running
ERROR: Can not read register 47 (FPS14) while CPU is running
ERROR: Can not read register 48 (FPS15) while CPU is running
ERROR: Can not read register 49 (FPS16) while CPU is running
ERROR: Can not read register 50 (FPS17) while CPU is running
ERROR: Can not read register 51 (FPS18) while CPU is running
ERROR: Can not read register 52 (FPS19) while CPU is running
ERROR: Can not read register 53 (FPS20) while CPU is running
ERROR: Can not read register 54 (FPS21) while CPU is running
ERROR: Can not read register 55 (FPS22) while CPU is running
ERROR: Can not read register 56 (FPS23) while CPU is running
ERROR: Can not read register 57 (FPS24) while CPU is running
ERROR: Can not read register 58 (FPS25) while CPU is running
ERROR: Can not read register 59 (FPS26) while CPU is running
ERROR: Can not read register 60 (FPS27) while CPU is running
ERROR: Can not read register 61 (FPS28) while CPU is running
ERROR: Can not read register 62 (FPS29) while CPU is running
ERROR: Can not read register 63 (FPS30) while CPU is running
ERROR: Can not read register 64 (FPS31) while CPU is running
Read 4 bytes @ address 0x00000000 (Data = 0x23000042)
Connected to 127.0.0.1
Reading all registers
ERROR: Can not read register 0 (R0) while CPU is running
ERROR: Can not read register 1 (R1) while CPU is running
ERROR: Can not read register 2 (R2) while CPU is running
ERROR: Can not read register 3 (R3) while CPU is running
ERROR: Can not read register 4 (R4) while CPU is running
ERROR: Can not read register 5 (R5) while CPU is running
ERROR: Can not read register 6 (R6) while CPU is running
ERROR: Can not read register 7 (R7) while CPU is running
ERROR: Can not read register 8 (R8) while CPU is running
ERROR: Can not read register 9 (R9) while CPU is running
ERROR: Can not read register 10 (R10) while CPU is running
ERROR: Can not read register 11 (R11) while CPU is running
ERROR: Can not read register 12 (R12) while CPU is running
ERROR: Can not read register 13 (R13) while CPU is running
ERROR: Can not read register 14 (R14) while CPU is running
ERROR: Can not read register 15 (R15) while CPU is running
ERROR: Can not read register 16 (XPSR) while CPU is running
ERROR: Can not read register 17 (MSP) while CPU is running
ERROR: Can not read register 18 (PSP) while CPU is running
ERROR: Can not read register 24 (PRIMASK) while CPU is running
ERROR: Can not read register 25 (BASEPRI) while CPU is running
ERROR: Can not read register 26 (FAULTMASK) while CPU is running
ERROR: Can not read register 27 (CONTROL) while CPU is running
ERROR: Can not read register 32 (FPSCR) while CPU is running
ERROR: Can not read register 33 (FPS0) while CPU is running
ERROR: Can not read register 34 (FPS1) while CPU is running
ERROR: Can not read register 35 (FPS2) while CPU is running
ERROR: Can not read register 36 (FPS3) while CPU is running
ERROR: Can not read register 37 (FPS4) while CPU is running
ERROR: Can not read register 38 (FPS5) while CPU is running
ERROR: Can not read register 39 (FPS6) while CPU is running
ERROR: Can not read register 40 (FPS7) while CPU is running
ERROR: Can not read register 41 (FPS8) while CPU is running
ERROR: Can not read register 42 (FPS9) while CPU is running
ERROR: Can not read register 43 (FPS10) while CPU is running
ERROR: Can not read register 44 (FPS11) while CPU is running
ERROR: Can not read register 45 (FPS12) while CPU is running
ERROR: Can not read register 46 (FPS13) while CPU is running
ERROR: Can not read register 47 (FPS14) while CPU is running
ERROR: Can not read register 48 (FPS15) while CPU is running
ERROR: Can not read register 49 (FPS16) while CPU is running
ERROR: Can not read register 50 (FPS17) while CPU is running
ERROR: Can not read register 51 (FPS18) while CPU is running
ERROR: Can not read register 52 (FPS19) while CPU is running
ERROR: Can not read register 53 (FPS20) while CPU is running
ERROR: Can not read register 54 (FPS21) while CPU is running
ERROR: Can not read register 55 (FPS22) while CPU is running
ERROR: Can not read register 56 (FPS23) while CPU is running
ERROR: Can not read register 57 (FPS24) while CPU is running
ERROR: Can not read register 58 (FPS25) while CPU is running
ERROR: Can not read register 59 (FPS26) while CPU is running
ERROR: Can not read register 60 (FPS27) while CPU is running
ERROR: Can not read register 61 (FPS28) while CPU is running
ERROR: Can not read register 62 (FPS29) while CPU is running
ERROR: Can not read register 63 (FPS30) while CPU is running
ERROR: Can not read register 64 (FPS31) while CPU is running
ERROR: Can not read register 33 (FPS0) while CPU is running
ERROR: Can not read register 34 (FPS1) while CPU is running
ERROR: Can not read register 35 (FPS2) while CPU is running
ERROR: Can not read register 36 (FPS3) while CPU is running
ERROR: Can not read register 37 (FPS4) while CPU is running
ERROR: Can not read register 38 (FPS5) while CPU is running
ERROR: Can not read register 39 (FPS6) while CPU is running
ERROR: Can not read register 40 (FPS7) while CPU is running
ERROR: Can not read register 41 (FPS8) while CPU is running
ERROR: Can not read register 42 (FPS9) while CPU is running
ERROR: Can not read register 43 (FPS10) while CPU is running
ERROR: Can not read register 44 (FPS11) while CPU is running
ERROR: Can not read register 45 (FPS12) while CPU is running
ERROR: Can not read register 46 (FPS13) while CPU is running
ERROR: Can not read register 47 (FPS14) while CPU is running
ERROR: Can not read register 48 (FPS15) while CPU is running
ERROR: Can not read register 49 (FPS16) while CPU is running
ERROR: Can not read register 50 (FPS17) while CPU is running
ERROR: Can not read register 51 (FPS18) while CPU is running
ERROR: Can not read register 52 (FPS19) while CPU is running
ERROR: Can not read register 53 (FPS20) while CPU is running
ERROR: Can not read register 54 (FPS21) while CPU is running
ERROR: Can not read register 55 (FPS22) while CPU is running
ERROR: Can not read register 56 (FPS23) while CPU is running
ERROR: Can not read register 57 (FPS24) while CPU is running
ERROR: Can not read register 58 (FPS25) while CPU is running
ERROR: Can not read register 59 (FPS26) while CPU is running
ERROR: Can not read register 60 (FPS27) while CPU is running
ERROR: Can not read register 61 (FPS28) while CPU is running
ERROR: Can not read register 62 (FPS29) while CPU is running
ERROR: Can not read register 63 (FPS30) while CPU is running
ERROR: Can not read register 64 (FPS31) while CPU is running
Read 4 bytes @ address 0xDEADBEEE (Data = 0x00422300)
Read 4 bytes @ address 0xDEADBEEF (Data = 0x00004223)
Reading 64 bytes @ address 0x00004200
Received monitor command: reset
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.SYSRESETREQ.
Reset: SYSRESETREQ has confused core.
Found SW-DP with ID 0x2BA01477
AP map detection skipped. Manually configured AP map found.
AP[0]: AHB-AP (IDR: Not set)
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
Reset: Using fallback: VECTRESET.
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.VECTRESET.
Reset: VECTRESET has confused core.
Reset: Using fallback: Reset pin.
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via reset pin
Reset: VC_CORERESET did not halt CPU. (Debug logic also reset by reset pin?).
Reset: Reconnecting and manually halting CPU.
Found SW-DP with ID 0x2BA01477
AP map detection skipped. Manually configured AP map found.
AP[0]: AHB-AP (IDR: Not set)
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
WARNING: T-bit of XPSR is 0 but should be 1. Changed to 1.
AfterResetTarget()
Resetting target
Downloading 14416 bytes @ address 0x00000000 - Verified OK
Downloading 16 bytes @ address 0x00003850 - Verified OK
ERROR: Verification of RAMCode failed @ address 0x1FFF0000.
Write: 0xA801BE00 F0009900
Read: 0xE000EDF4 A801BE00
Failed to prepare for programming.
Failed to download RAMCode!
Writing register (PC = 0x 1d4)
Writing register (XPSR = 0xdfadbeef)
Read 4 bytes @ address 0x000001D4 (Data = 0x00000000)
Reading all registers
ERROR: Can not read register 25 (BASEPRI) while CPU is running
ERROR: Can not read register 26 (FAULTMASK) while CPU is running
ERROR: Can not read register 27 (CONTROL) while CPU is running
ERROR: Can not read register 32 (FPSCR) while CPU is running
ERROR: Can not read register 33 (FPS0) while CPU is running
ERROR: Can not read register 34 (FPS1) while CPU is running
ERROR: Can not read register 35 (FPS2) while CPU is running
ERROR: Can not read register 36 (FPS3) while CPU is running
ERROR: Can not read register 37 (FPS4) while CPU is running
ERROR: Can not read register 38 (FPS5) while CPU is running
ERROR: Can not read register 39 (FPS6) while CPU is running
ERROR: Can not read register 40 (FPS7) while CPU is running
ERROR: Can not read register 41 (FPS8) while CPU is running
ERROR: Can not read register 42 (FPS9) while CPU is running
ERROR: Can not read register 43 (FPS10) while CPU is running
ERROR: Can not read register 44 (FPS11) while CPU is running
ERROR: Can not read register 45 (FPS12) while CPU is running
ERROR: Can not read register 46 (FPS13) while CPU is running
ERROR: Can not read register 47 (FPS14) while CPU is running
ERROR: Can not read register 48 (FPS15) while CPU is running
ERROR: Can not read register 49 (FPS16) while CPU is running
ERROR: Can not read register 50 (FPS17) while CPU is running
ERROR: Can not read register 51 (FPS18) while CPU is running
ERROR: Can not read register 52 (FPS19) while CPU is running
ERROR: Can not read register 53 (FPS20) while CPU is running
ERROR: Can not read register 54 (FPS21) while CPU is running
ERROR: Can not read register 55 (FPS22) while CPU is running
ERROR: Can not read register 56 (FPS23) while CPU is running
ERROR: Can not read register 57 (FPS24) while CPU is running
ERROR: Can not read register 58 (FPS25) while CPU is running
ERROR: Can not read register 59 (FPS26) while CPU is running
ERROR: Can not read register 60 (FPS27) while CPU is running
ERROR: Can not read register 61 (FPS28) while CPU is running
ERROR: Can not read register 62 (FPS29) while CPU is running
ERROR: Can not read register 63 (FPS30) while CPU is running
ERROR: Can not read register 64 (FPS31) while CPU is running
ERROR: Can not read register 33 (FPS0) while CPU is running
ERROR: Can not read register 34 (FPS1) while CPU is running
ERROR: Can not read register 35 (FPS2) while CPU is running
ERROR: Can not read register 36 (FPS3) while CPU is running
ERROR: Can not read register 37 (FPS4) while CPU is running
ERROR: Can not read register 38 (FPS5) while CPU is running
ERROR: Can not read register 39 (FPS6) while CPU is running
ERROR: Can not read register 40 (FPS7) while CPU is running
ERROR: Can not read register 41 (FPS8) while CPU is running
ERROR: Can not read register 42 (FPS9) while CPU is running
ERROR: Can not read register 43 (FPS10) while CPU is running
ERROR: Can not read register 44 (FPS11) while CPU is running
ERROR: Can not read register 45 (FPS12) while CPU is running
ERROR: Can not read register 46 (FPS13) while CPU is running
ERROR: Can not read register 47 (FPS14) while CPU is running
ERROR: Can not read register 48 (FPS15) while CPU is running
ERROR: Can not read register 49 (FPS16) while CPU is running
ERROR: Can not read register 50 (FPS17) while CPU is running
ERROR: Can not read register 51 (FPS18) while CPU is running
ERROR: Can not read register 52 (FPS19) while CPU is running
ERROR: Can not read register 53 (FPS20) while CPU is running
ERROR: Can not read register 54 (FPS21) while CPU is running
ERROR: Can not read register 55 (FPS22) while CPU is running
ERROR: Can not read register 56 (FPS23) while CPU is running
ERROR: Can not read register 57 (FPS24) while CPU is running
ERROR: Can not read register 58 (FPS25) while CPU is running
ERROR: Can not read register 59 (FPS26) while CPU is running
ERROR: Can not read register 60 (FPS27) while CPU is running
ERROR: Can not read register 61 (FPS28) while CPU is running
ERROR: Can not read register 62 (FPS29) while CPU is running
ERROR: Can not read register 63 (FPS30) while CPU is running
ERROR: Can not read register 64 (FPS31) while CPU is running
Read 4 bytes @ address 0x00000000 (Data = 0x23000042)
Reading 64 bytes @ address 0x000005C0
Read 2 bytes @ address 0x000005FE (Data = 0xF00F)
Received monitor command: semihosting enable
Semi-hosting enabled (Handle on BKPT)
Received monitor command: exec SetRestartOnClose=1
Executed SetRestartOnClose=1
Received monitor command: reset
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.SYSRESETREQ.
Reset: SYSRESETREQ has confused core.
Found SW-DP with ID 0x2BA01477
AP map detection skipped. Manually configured AP map found.
AP[0]: AHB-AP (IDR: Not set)
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
Reset: Using fallback: VECTRESET.
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.VECTRESET.
Reset: VECTRESET has confused core.
Reset: Using fallback: Reset pin.
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via reset pin
Reset: VC_CORERESET did not halt CPU. (Debug logic also reset by reset pin?).
Reset: Reconnecting and manually halting CPU.
Found SW-DP with ID 0x2BA01477
AP map detection skipped. Manually configured AP map found.
AP[0]: AHB-AP (IDR: Not set)
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
WARNING: T-bit of XPSR is 0 but should be 1. Changed to 1.
AfterResetTarget()
Resetting target
Reading 64 bytes @ address 0xDEADBEC0
WARNING: Failed to read memory @ address 0xDEADBEC0
WARNING: Failed to read memory @ address 0xDEADBEEE
Setting breakpoint @ address 0x000005FE, Size = 2, BPHandle = 0x0001
Starting target CPU...
ERROR: CPU is not halted
ERROR: Can not read register 15 (R15) while CPU is running
Reading all registers
ERROR: Can not read register 0 (R0) while CPU is running
ERROR: Can not read register 1 (R1) while CPU is running
ERROR: Can not read register 2 (R2) while CPU is running
ERROR: Can not read register 3 (R3) while CPU is running
ERROR: Can not read register 4 (R4) while CPU is running
ERROR: Can not read register 5 (R5) while CPU is running
ERROR: Can not read register 6 (R6) while CPU is running
ERROR: Can not read register 7 (R7) while CPU is running
ERROR: Can not read register 8 (R8) while CPU is running
ERROR: Can not read register 9 (R9) while CPU is running
ERROR: Can not read register 10 (R10) while CPU is running
ERROR: Can not read register 11 (R11) while CPU is running
ERROR: Can not read register 12 (R12) while CPU is running
ERROR: Can not read register 13 (R13) while CPU is running
ERROR: Can not read register 14 (R14) while CPU is running
ERROR: Can not read register 15 (R15) while CPU is running
ERROR: Can not read register 16 (XPSR) while CPU is running
ERROR: Can not read register 17 (MSP) while CPU is running
ERROR: Can not read register 18 (PSP) while CPU is running
ERROR: Can not read register 24 (PRIMASK) while CPU is running
ERROR: Can not read register 25 (BASEPRI) while CPU is running
ERROR: Can not read register 26 (FAULTMASK) while CPU is running
ERROR: Can not read register 27 (CONTROL) while CPU is running
ERROR: Can not read register 32 (FPSCR) while CPU is running
ERROR: Can not read register 33 (FPS0) while CPU is running
ERROR: Can not read register 34 (FPS1) while CPU is running
ERROR: Can not read register 35 (FPS2) while CPU is running
ERROR: Can not read register 36 (FPS3) while CPU is running
ERROR: Can not read register 37 (FPS4) while CPU is running
ERROR: Can not read register 38 (FPS5) while CPU is running
ERROR: Can not read register 39 (FPS6) while CPU is running
ERROR: Can not read register 40 (FPS7) while CPU is running
ERROR: Can not read register 41 (FPS8) while CPU is running
ERROR: Can not read register 42 (FPS9) while CPU is running
ERROR: Can not read register 43 (FPS10) while CPU is running
ERROR: Can not read register 44 (FPS11) while CPU is running
ERROR: Can not read register 45 (FPS12) while CPU is running
ERROR: Can not read register 46 (FPS13) while CPU is running
ERROR: Can not read register 47 (FPS14) while CPU is running
ERROR: Can not read register 48 (FPS15) while CPU is running
ERROR: Can not read register 49 (FPS16) while CPU is running
ERROR: Can not read register 50 (FPS17) while CPU is running
ERROR: Can not read register 51 (FPS18) while CPU is running
ERROR: Can not read register 52 (FPS19) while CPU is running
ERROR: Can not read register 53 (FPS20) while CPU is running
ERROR: Can not read register 54 (FPS21) while CPU is running
ERROR: Can not read register 55 (FPS22) while CPU is running
ERROR: Can not read register 56 (FPS23) while CPU is running
ERROR: Can not read register 57 (FPS24) while CPU is running
ERROR: Can not read register 58 (FPS25) while CPU is running
ERROR: Can not read register 59 (FPS26) while CPU is running
ERROR: Can not read register 60 (FPS27) while CPU is running
ERROR: Can not read register 61 (FPS28) while CPU is running
ERROR: Can not read register 62 (FPS29) while CPU is running
ERROR: Can not read register 63 (FPS30) while CPU is running
ERROR: Can not read register 64 (FPS31) while CPU is running
ERROR: Can not read register 33 (FPS0) while CPU is running
ERROR: Can not read register 34 (FPS1) while CPU is running
ERROR: Can not read register 35 (FPS2) while CPU is running
ERROR: Can not read register 36 (FPS3) while CPU is running
ERROR: Can not read register 37 (FPS4) while CPU is running
ERROR: Can not read register 38 (FPS5) while CPU is running
ERROR: Can not read register 39 (FPS6) while CPU is running
ERROR: Can not read register 40 (FPS7) while CPU is running
ERROR: Can not read register 41 (FPS8) while CPU is running
ERROR: Can not read register 42 (FPS9) while CPU is running
ERROR: Can not read register 43 (FPS10) while CPU is running
ERROR: Can not read register 44 (FPS11) while CPU is running
ERROR: Can not read register 45 (FPS12) while CPU is running
ERROR: Can not read register 46 (FPS13) while CPU is running
ERROR: Can not read register 47 (FPS14) while CPU is running
ERROR: Can not read register 48 (FPS15) while CPU is running
ERROR: Can not read register 49 (FPS16) while CPU is running
ERROR: Can not read register 50 (FPS17) while CPU is running
ERROR: Can not read register 51 (FPS18) while CPU is running
ERROR: Can not read register 52 (FPS19) while CPU is running
ERROR: Can not read register 53 (FPS20) while CPU is running
ERROR: Can not read register 54 (FPS21) while CPU is running
ERROR: Can not read register 55 (FPS22) while CPU is running
ERROR: Can not read register 56 (FPS23) while CPU is running
ERROR: Can not read register 57 (FPS24) while CPU is running
ERROR: Can not read register 58 (FPS25) while CPU is running
ERROR: Can not read register 59 (FPS26) while CPU is running
ERROR: Can not read register 60 (FPS27) while CPU is running
ERROR: Can not read register 61 (FPS28) while CPU is running
ERROR: Can not read register 62 (FPS29) while CPU is running
ERROR: Can not read register 63 (FPS30) while CPU is running
ERROR: Can not read register 64 (FPS31) while CPU is running
Removing breakpoint @ address 0x000005FE, Size = 2
WARNING: CPU could not be halted
ERROR: Could not start CPU core. (ErrorCode: -1)
WARNING: Failed to read memory @ address 0xDEADBEEE
Reading 64 bytes @ address 0xDEADBEC0
WARNING: Failed to read memory @ address 0xDEADBEC0
WARNING: Failed to read memory @ address 0xDEADBEEE
WARNING: Failed to read memory @ address 0xDEADBEEE
Reading 64 bytes @ address 0xDEADBEC0
WARNING: Failed to read memory @ address 0xDEADBEC0
WARNING: Failed to read memory @ address 0xDEADBEF0
Reading 64 bytes @ address 0xDEADBEC0
WARNING: Failed to read memory @ address 0xDEADBEC0
WARNING: Failed to read memory @ address 0xDEADBEF0
GDB closed TCP/IP connection
GDB closed TCP/IP connection
Restoring target state and closing J-Link connection...
Shutting down...

Server has been shut down.

And the error displaying is 

Thank you

Kapil Patil

[kapil_p]

Hi Erich 

If I click on option NO

I am getting an following error ,

  

I checked this error reason which you replied in

Why - No source available for "g_pfnVectors() at 0x0" 

But my problem is not solved.

Thank you.

Kapil Patil

[kapil_p]

Hi Erich,

The above all errors are generating when I am using the J-link lite CortexM external debugger.

Sorry I not mentioned this above messages.

Thank you

Kapil Patil

[BlackNight]

The messages from the J-Link indicate that it is not able to completely stop the target.

Not sure how long your SWD debug cable is, or if there are any EMI issues. Keep the cable as short as possible.

The other thought I have: does debugging with that J-Link work for other boards? I had at least one unit which somehow got damaged.

[kapil_p]

Hi Erich 

Thanks a lot for the help.

Now I am able to download the code successfully.

Thank you

Kapil Patil

[BlackNight]

Hi Papil,

what did you change?

Erich

[kapil_p · Accepted solution]

Hi Erich

I changed the restored jumpers , the previous jumper connectors are loose.

Thank you once again for the help.

Thank you

Kapil Patil