AnsweredAssumed Answered

K22 segger J-Link debug problem

Question asked by JQ Wang on May 1, 2015
Latest reply on May 4, 2015 by JQ Wang

Hi,

 

I suddenly cannot start J-Link debug. I checked the J-link ok @FRDM-K22F board.

Log info:

 

SEGGER J-Link GDB Server V4.98d - Terminal output channel

 

Connection closed by the GDB server.

 

 

 

Exception condition detected on fd 0

 

Quit (expect signal SIGINT when the program is resumed)

 

Quit (expect signal SIGINT when the program is resumed)

 

Quit (expect signal SIGINT when the program is resumed)

 

Quit (expect signal SIGINT when the program is resumed)

 

error detected on stdin

 

 

 

SEGGER J-Link GDB Server V4.98d Command Line Version

 

 

 

JLinkARM.dll V4.98d (DLL compiled Apr 28 2015 13:58:23)

 

 

 

-----GDB Server start settings-----

 

GDBInit file: none

 

GDB Server Listening port: 2331

 

SWO raw output listening port: 2332

 

Terminal I/O port: 2333

 

Accept remote connection: localhost only

 

Generate logfile: off

 

Verify download: on

 

Init regs on start: on

 

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: MK22FN512xxx12

 

Target interface: JTAG

 

Target interface speed: 30kHz

 

Target endian: little

 

 

 

Connecting to J-Link...

 

J-Link is connected.

 

Firmware: J-Link V9 compiled Apr 21 2015 18:10:40

 

Hardware: V9.30

 

S/N: 59300951

 

Feature(s): GDB

 

Checking target voltage...

 

Target voltage: 3.40 V

 

Listening on TCP/IP port 2331

 

Connecting to target...ERROR: Could not connect to target.

 

Target connection failed. GDBServer will be closed...Restoring target state and closing J-Link connection...

 

Shutting down...

 

Could not connect to target.

 

Please check power, connection and settings.

 

 

please suggest how to solve this issue.

thanks,

JQ

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