I have a Kinetis K70 that I want to erase and program with J-Link Plus.
Everything used to work fine in the past with the same target device and J-Link probe, but now the operation is unsuccessful.
As soon I power on the target device, the J-Link LED changes from green to red.
I have tried to change host PC and J-Link probe, but the problem persists.
Any hint about the cause of the problem and what to try?
Here is the log of J-Link Commander V6.96 of what I have tried so far:
SEGGER J-Link Commander V6.96 (Compiled Feb 19 2021 09:57:05)
DLL version V6.96, compiled Feb 19 2021 09:55:51
Connecting to J-Link via USB...O.K.
Firmware: J-Link V10 compiled Aug 9 2021 10:30:48
Hardware version: V10.10
S/N: 600110993
License(s): RDI, FlashBP, FlashDL, JFlash, GDB
VTref=3.296V
Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: MK70FN1M0XXX15
Type '?' for selection dialog
Device>
Please specify target interface:
J) JTAG (Default)
S) SWD
T) cJTAG
TIF>S
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>
Device "MK70FN1M0XXX15" selected.
Connecting to target via SWD
InitTarget()
Found SW-DP with ID 0x2BA01477
DPIDR: 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: 6 code (BP) slots and 2 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS-M7
ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT
ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB
ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM
ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU
ROMTbl[0][5]: E0041000, CID: B105900D, PID: 000BB925 ETM
ROMTbl[0][6]: E0042000, CID: B105900D, PID: 003BB907 ETB
ROMTbl[0][7]: E0043000, CID: B105900D, PID: 001BB908 CSTF
Cortex-M4 identified.
J-Link>erase
Without any give address range, Erase Chip will be executed
Erasing device...
****** Error: Failed to download RAMCode.
Failed to prepare for programming.
Failed to download RAMCode!
ERROR: Erase returned with error code -1.
J-Link>unlock kinetis
Found SWD-DP with ID 0x2BA01477
Unlocking device...O.K.
J-Link>erase
Without any give address range, Erase Chip will be executed
CPU could not be halted
Erasing device...
CPU could not be halted
****** Error: Cannot read register 16 (XPSR) while CPU is running
Cannot read register 20 (CFBP) while CPU is running
Cannot read register 0 (R0) while CPU is running
Cannot read register 1 (R1) while CPU is running
Cannot read register 2 (R2) while CPU is running
Cannot read register 3 (R3) while CPU is running
Cannot read register 4 (R4) while CPU is running
Cannot read register 5 (R5) while CPU is running
Cannot read register 6 (R6) while CPU is running
Cannot read register 7 (R7) while CPU is running
Cannot read register 8 (R8) while CPU is running
Cannot read register 9 (R9) while CPU is running
Cannot read register 10 (R10) while CPU is running
Cannot read register 11 (R11) while CPU is running
Cannot read register 12 (R12) while CPU is running
Cannot read register 14 (R14) while CPU is running
Cannot read register 15 (R15) while CPU is running
Cannot read register 17 (MSP) while CPU is running
Cannot read register 18 (PSP) while CPU is running
****** Error: Failed to prepare for programming.
Could not preserve target memory.
ERROR: Erase returned with error code -1.
J-Link>h
CPU could not be halted
J-Link>r
Reset delay: 0 ms
Reset type NORMAL: Resets core & peripherals via SYSRESETREQ & VECTRESET bit.
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.SYSRESETREQ.
AfterResetTarget()
J-Link>erase
Without any give address range, Erase Chip will be executed
Erasing device...
****** Error: Failed to prepare for programming.
Could not preserve target memory.
ERROR: Erase returned with error code -1.
J-Link>
It seems that the problem might somewhat be recoverable by connecting at fixed low speed (100 kHz or even 10 kHz), but only through JLinkGDBServerCL within the Kinetis KDS, not with the J-Link Commander.
Everything used to work fine in the past with the same target device and J-Link probe, but now the operation is unsuccessful.
As soon I power on the target device, the J-Link LED changes from green to red.
I have tried to change host PC and J-Link probe, but the problem persists.
Any hint about the cause of the problem and what to try?
Here is the log of J-Link Commander V6.96 of what I have tried so far:
SEGGER J-Link Commander V6.96 (Compiled Feb 19 2021 09:57:05)
DLL version V6.96, compiled Feb 19 2021 09:55:51
Connecting to J-Link via USB...O.K.
Firmware: J-Link V10 compiled Aug 9 2021 10:30:48
Hardware version: V10.10
S/N: 600110993
License(s): RDI, FlashBP, FlashDL, JFlash, GDB
VTref=3.296V
Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: MK70FN1M0XXX15
Type '?' for selection dialog
Device>
Please specify target interface:
J) JTAG (Default)
S) SWD
T) cJTAG
TIF>S
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>
Device "MK70FN1M0XXX15" selected.
Connecting to target via SWD
InitTarget()
Found SW-DP with ID 0x2BA01477
DPIDR: 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: 6 code (BP) slots and 2 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS-M7
ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT
ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB
ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM
ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU
ROMTbl[0][5]: E0041000, CID: B105900D, PID: 000BB925 ETM
ROMTbl[0][6]: E0042000, CID: B105900D, PID: 003BB907 ETB
ROMTbl[0][7]: E0043000, CID: B105900D, PID: 001BB908 CSTF
Cortex-M4 identified.
J-Link>erase
Without any give address range, Erase Chip will be executed
Erasing device...
****** Error: Failed to download RAMCode.
Failed to prepare for programming.
Failed to download RAMCode!
ERROR: Erase returned with error code -1.
J-Link>unlock kinetis
Found SWD-DP with ID 0x2BA01477
Unlocking device...O.K.
J-Link>erase
Without any give address range, Erase Chip will be executed
CPU could not be halted
Erasing device...
CPU could not be halted
****** Error: Cannot read register 16 (XPSR) while CPU is running
Cannot read register 20 (CFBP) while CPU is running
Cannot read register 0 (R0) while CPU is running
Cannot read register 1 (R1) while CPU is running
Cannot read register 2 (R2) while CPU is running
Cannot read register 3 (R3) while CPU is running
Cannot read register 4 (R4) while CPU is running
Cannot read register 5 (R5) while CPU is running
Cannot read register 6 (R6) while CPU is running
Cannot read register 7 (R7) while CPU is running
Cannot read register 8 (R8) while CPU is running
Cannot read register 9 (R9) while CPU is running
Cannot read register 10 (R10) while CPU is running
Cannot read register 11 (R11) while CPU is running
Cannot read register 12 (R12) while CPU is running
Cannot read register 14 (R14) while CPU is running
Cannot read register 15 (R15) while CPU is running
Cannot read register 17 (MSP) while CPU is running
Cannot read register 18 (PSP) while CPU is running
****** Error: Failed to prepare for programming.
Could not preserve target memory.
ERROR: Erase returned with error code -1.
J-Link>h
CPU could not be halted
J-Link>r
Reset delay: 0 ms
Reset type NORMAL: Resets core & peripherals via SYSRESETREQ & VECTRESET bit.
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.SYSRESETREQ.
AfterResetTarget()
J-Link>erase
Without any give address range, Erase Chip will be executed
Erasing device...
****** Error: Failed to prepare for programming.
Could not preserve target memory.
ERROR: Erase returned with error code -1.
J-Link>
It seems that the problem might somewhat be recoverable by connecting at fixed low speed (100 kHz or even 10 kHz), but only through JLinkGDBServerCL within the Kinetis KDS, not with the J-Link Commander.