我使用的是JLINKV8，某宝上的买的。这个JLINK的1脚和2脚是相连的。和一般的有点不一样。
我用它在下载程序的时候出现了这个问题。很奇怪。请大婶帮我看看
SEGGER J-Link GDB Server V4.92 Command Line Version

JLinkARM.dll V4.92 (DLL compiled Sep 30 2014 09:33:42)

-----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:     5 sec.
------J-Link related settings------
J-Link Host interface:         USB
J-Link script:                 none
J-Link settings file:          none
------Target related settings------
Target device:                 MKL16Z256xxx4
Target interface:              SWD
Target interface speed:        2000kHz
Target endian:                 little

Connecting to J-Link...
J-Link is connected.
Firmware: J-Link ARM V8 compiled Dec  1 2009 11:42:48
Hardware: V8.00
S/N: 304230680
Feature(s): RDI,FlashDL,FlashBP,JFlash,GDBFULL
Checking target voltage...
Target voltage: 3.33 V
Listening on TCP/IP port 2331
Connecting to target...Connected to target
Waiting for GDB connection...Connected to 127.0.0.1
Reading all registers
Read 4 bytes @ address 0x00000000 (Data = 0x1FFFEAC8)
Target interface speed set to 1000 kHz
Resetting target
Halting target CPU...
...Target halted (PC = 0x00000504)
R0 = 00000000, R1 = 00000100, R2 = 00000105, R3 = 4004A000
R4 = 1FFFE2E8, R5 = 1FFFE358, R6 = 00000000, R7 = 1FFFEAB0
R8 = DB3B2388, R9 = 10285E50, R10= A86A2104, R11= 070A2A24
R12= 0445AA03, R13= 1FFFEAC8, MSP= 1FFFEAC8, PSP= 10835080
R14(LR) = 00000669, R15(PC) = 00000504
XPSR 01000000, APSR 00000000, EPSR 01000000, IPSR 00000000
CFBP 00000000, CONTROL 00, FAULTMASK 00, BASEPRI 00, PRIMASK 00
Reading all registers
Select auto target interface speed (2000 kHz)
Flash breakpoints enabled
Semi-hosting enabled (VectorAddr = 0x08)
Semihosting I/O set to TELNET Client
SWO disabled succesfully.
Connected to 127.0.0.1
Connected to 127.0.0.1
Connected to 127.0.0.1
Connected to 127.0.0.1