Debugging LPC55S69 using LinkServer stopped working

[philipouellette]

I am working with an LPC55S69 eval PCB and have run into a snag with the built-in LinkServer debugger.

It was working fine until I tried using the "Erase Flash action using LinkServer" function. After that I can no longer debug using the LinkServer.  Each time I get the same error: 

Error in final launch sequence:

Failed to execute MI command:
-target-select extended-remote | crt_emu_cm_redlink -msg-port=51066 -g -mi -2 -pLPC55S69 -vendor=NXP --bootromstall 0x50000040 -ProbeHandle=1 -CoreIndex=1 -cache=disable --flash-hashing --flash-driver-reset SOFT -x C:/Users/pouellette/Documents/Coding/MCUEXpresso/LPC55S69_Project/Debug --flash-dir C:/nxp/MCUXpressoIDE_11.2.0_4120/ide/plugins/com.nxp.mcuxpresso.tools.bin.win32_11.2.0.202007070855/binaries/Flash --flash-dir C:/Users/pouellette/Documents/Coding/MCUEXpresso/.mcuxpressoide_packages_support/LPC55S69_support/Flash --telnet 3330
Error message from debugger back end:
Remote communication error. Target disconnected.: Success.
Failed to execute MI command:
-target-select extended-remote | crt_emu_cm_redlink -msg-port=51066 -g -mi -2 -pLPC55S69 -vendor=NXP --bootromstall 0x50000040 -ProbeHandle=1 -CoreIndex=1 -cache=disable --flash-hashing --flash-driver-reset SOFT -x C:/Users/pouellette/Documents/Coding/MCUEXpresso/LPC55S69_Project/Debug --flash-dir C:/nxp/MCUXpressoIDE_11.2.0_4120/ide/plugins/com.nxp.mcuxpresso.tools.bin.win32_11.2.0.202007070855/binaries/Flash --flash-dir C:/Users/pouellette/Documents/Coding/MCUEXpresso/.mcuxpressoide_packages_support/LPC55S69_support/Flash --telnet 3330
Error message from debugger back end:
Remote communication error. Target disconnected.: Success.

I noticed this thread which suggested changing the LinkServer Debug "Flash driver reset handling" and the behavior was the same with each setting

https://community.nxp.com/t5/LPC-Microcontrollers/FreeRTOS-LPCXpresso55S69-Devboard-debugging-proble...

I am using MCUXpresso IDE v11.2.0 [Build 4120] [2020-07-09]

[philipouellette]

F.Y.I. My Segger J-Link works fine.

I grabbed a fresh LPC55S69 Eval PCB and it behaves exactly the same way.

Note: I am able to perform ISP using the LinkServer. I am unable to debug using the the LinkServer.

[gusarambula]

Hello Philipouellette,

Have you tried loading the  debug firmware again? You can flash this firmware easily using the LPCScrypt tool (available in the link below).

https://www.nxp.com/design/microcontrollers-developer-resources/lpc-microcontroller-utilities/lpcscr...

I hope that this information helps!

Regards,
Gustavo

[philipouellette]

Contents of Console after attempting to debug.

MCUXpresso IDE RedlinkMulti Driver v11.1 (Jul 7 2020 10:48:32 - crt_emu_cm_redlink build 5)
Found chip XML file in C:/Users/pouellette/Documents/Coding/MCUEXpresso/LPC55S69_Project/Debug\LPC55S69.xml
( 5) Remote configuration complete
Reconnected to existing LinkServer process.
Probe Firmware: LPC-LINK2 CMSIS-DAP V5.224 (NXP Semiconductors)
Serial Number: ESAVBQCQ
VID:PID: 1FC9:0090
USB Path: \\?\hid#vid_1fc9&pid_0090&mi_00#b&1a3b00b9&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}
Using memory from core 1 after searching for a good core
Cannot halt processor
Request debug reset of DAP
Cannot halt processor
Request debug reset of DAP
( 40) No Halt
debug interface type = Cortex-M33 (DAP DP ID 6BA02477) over SWD TAP 0
processor type = Cortex-M33 (CPU ID 00000D21) on DAP AP 1
number of h/w breakpoints = 8
number of flash patches = 0
number of h/w watchpoints = 4
Probe(0): Connected&Reset. DpID: 6BA02477. CpuID: 00000D21. Info: <None>
Debug protocol: SWD. RTCK: Disabled. Vector catch: Disabled.
Content of CoreSight Debug ROM(s):
RBASE E00FE000: CID B105100D PID 0000095000 ROM (type 0x1)
ROM 1 E00FF000: CID B105100D PID 04000BB4C9 ROM (type 0x1)
ROM 2 E000E000: CID B105900D PID 04000BBD21 CSt ARM ARMv8-M type 0x0 Misc - Undefined
ROM 2 E0001000: CID B105900D PID 04000BBD21 CSt ARM DWTv2 type 0x0 Misc - Undefined
ROM 2 E0002000: CID B105900D PID 04000BBD21 CSt ARM FPBv2 type 0x0 Misc - Undefined
ROM 2 E0000000: CID B105900D PID 04000BBD21 CSt ARM ITMv2 type 0x43 Trace Source - Bus
ROM 1 E0040000: CID B105900D PID 04000BBD21 CSt type 0x11 Trace Sink - TPIU
Cannot halt processor
Failed on chip setup: Ep(04). Cannot halt processor.