Jlink 命令【常用命令】

本文摘录于：http://blog.sina.com.cn/s/blog_533f26760102vq3s.html

这里只做学习之用

几个常用命令：

  usb--------连接目标板
  r----------重启目标板
  halt-------停止cpu运行的程序
  loadbin----加载可执行的二进制文件
  g----------跳到代码段地址执行
  s----------单步执行（调试用）
  setpc-----设置pc寄存器的值（调试用）
  setbp-----设置断点
  Regs-------读寄存器组织
  wreg-------写寄存器
  mem--------读内存
  w4---------写内存
  power off mmu---关闭mmu，这个对于裸板调试很重要
  w4 cpsr,0x0000001f------切换到系统模式
  speed------设置jtag的传输速率
  rce 0,c0,c0,0-----设置cp15寄存器的第1个寄存器为0

其他命令：

ite 32-bit items. Syntax: w4 ,(hex)（读内存32字节）
wm        Write test words. Syntax: wm
is        Identify length of scan chain selectregister
ms        Measure length of scan chain. Syntax: ms
mr        Measure RTCK react time. Syntax: mr
q         Quit（推出）
qc        Close JLink connection andquit（关闭jlink连接，并退出）
r         Reset target       (RESET)（重启目标）
rx        Reset target        (RESET).Syntax: rx （延时重启）
RSetType   Set the current reset type. Syntax:RSetType
Regs      Display contents of registers（显示寄存器信息）
wreg       Writeregister.   Syntax: wreg , （写继承器）
SetBP      Setbreakpoint.   Syntax: SetBP [A/T][S/H]（设置断点）
SetWP      SetWatchpoint. Syntax: [R/W] [ [] [A-Mask]]（设置监视点）
ClrBP      Clearbreakpoint. Syntax: ClrBP  （清除断点）
ClrWP      Clearwatchpoint. Syntax: ClrWP  （清楚监视点）
VCatch     Write vector catch.Syntax: VCatch
loadbin    Load binary file intotarget memory.（下载bin文件到目标内存）
           Syntax: loadbin ,
savebin    Saves target memoryinto binary file.（保存BIN文件）
           Syntax: savebin , ,
SetPC      Setthe PC to specified value. Syntax: SetPC （设置PC（r15）寄存器）
le        Change to little endian mode（设置成小端模式）
be        Change to big endian mode（设置成大端模式）
log       Enables log to file.  Syntax:log
unlock     Unlocks a device.Syntax: unlock
          Type unlockwithout to get a list
          ofsupported device names.
          nRESET hasto be connected
---- CP15 ------------
rce       Read CP15.  Syntax: rce , , ,（读CP15）
wce       Write CP15. Syntax: wce , , , , (写CP15)
---- ICE -------------
Ice       Show state of the embedded ice macrocell (ICEbreaker)
ri        Read Ice reg.  Syntax: ri(hex)
wi        Write Ice reg. Syntax: wi , (hex)
---- ETM -------------
etm       Show ETM status
re        Read ETM reg.  Syntax: re
we        Write ETM reg. Syntax: we , (hex)
es        Start trace
---- ETB -------------
etb       Show ETB status
rb        Read ETB register.  Syntax:rb
wb        Write ETB register. Syntax: wb , (hex)
---- TRACE -----------
TAddBranch TRACE - Add branch instruction to trace buffer.Paras:,
TAddInst   TRACE - Add (non-branch) instruction totrace buffer. Syntax:
TClear     TRACE - Clearbuffer
TSetSize   TRACE - Set Size of trace buffer
TSetFormat TRACE - SetFormat
TSR       TRACE - Show Regions (and analyze tracebuffer)
TStart     TRACE - Start
TStop      TRACE- Stop
---- SWO -------------
SWOSpeed   SWO - Show supported speeds
SWOStart   SWO - Start
SWOStop    SWO - Stop
SWOStat    SWO - Display SWOstatus
SWORead    SWO - Read and displaySWO data
SWOShow    SWO - Read and analyzeSWO data
SWOFlush   SWO - Flush data
---- File I/O --------
fwrite     Write file toemulator
fread      Readfile from emulator
fshow      Readand display file from emulator
fdelete    Delete file onemulator
fsize     Display size of file on emulator
---- Test ------------
thg       Run go/halt 1000 times
ts        Run step 1000 times
testwspeed Test download speed.   Syntax:testwspeed [ []]
testrspeed Test upload speed.    Syntax: testrspeed [ [] [s>]]
testcspeed Test CPU speed.       Syntax: testcspeed []
---- JTAG ------------
Config     Set number of IR/DRbits before ARM device.
           Syntax: Config ,
speed      SetJTAG speed. Syntax: speed |auto|adaptive, e.g. speed 2000,
speed a
i         Read JTAG Id (Host CPU)
wjc       Write JTAG command (IR). Syntax: wjc (hex)
wjd       Write JTAG data (DR). Syntax: wjd (hex),(dec)
RTAP       ResetTAP Controller using state machine (111110)
wjraw      WriteRaw JTAG data. Syntax: wjraw , ,
rt        Reset TAP Controller (nTRST)
---- JTAG-Hardware ---
c00       Create clock with TDI = TMS = 0
c         Clock
0         Clear TDI
1         Set  TDI
t0        Clear TMS
t1        Set   TMS
trst0      ClearTRST
trst1      Set  TRST
r0        Clear RESET
r1        Set   RESET
---- Connection ------
usb       Connect to J-Link via USB. Syntax: usb , where port is 0..3
ip        Connect to J-Link ARM Pro or J-Link TCP/IPServer via TCP/IP.
          Syntax:ip
---- Configuration ---
si        Select target interface. Syntax: si ,
          where0=JTAG and 1=SWD.
power     Switch power supply for target. Syntax: power[perm],
          where Stateis either On or Off. Example: power on perm
wconf      Writeconfiguration byte. Syntax: wconf ,
rconf      Readconfiguration bytes. Syntax: rconf
usbaddr    Assign usb address tothe connected J-Link: Syntax: usbaddr =
ipaddr     Show/Assign IP addressand subnetmask of/to the connected J-Link.
gwaddr     Show/Assign networkgateway address of/to the connected J-Link.
dnsaddr    Show/Assign networkDNS server address of/to the connected J-Link.
conf       Showconfiguration of the connected J-Link.
ecp       Enable the  J-Link controlpanel.
calibrate  Calibrate the target currentmeasurement.
selemu     Select a emulator tocommunicate with,
          from a listof all emulators which are connected to the host
          Theinterfaces to search on, can be specified
           Syntax: selemu [ ...]
ShowEmuList Shows a list of all emulators which are connected tothe host.
           Theinterfaces to search on, can be specified.
           Syntax: ShowEmuList [ ...]
----------------------
NOTE: Specifying a filename in command line
will start J-Link Commander in script mode.