J-LINK无法下载调试程序

eefocus_3871742

我想在RT117F评估板上面调试程序，用的仿真器是J-LINK，结果下载程序的时候出错：

ERROR: Could not connect to target.
  SEGGER J-Link GDB Server V7.80b Command Line Version
  JLinkARM.dll V7.80b (DLL compiled Sep 20 2022 17:10:13)
  Command line: -nosilent -swoport 2332 -select USB=25952328 -telnetport 2333 -singlerun -endian little -noir -speed auto -port 2331 -vd -device MIMXRT117HxxxA_M7 -if SWD -halt -reportuseraction
  -----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:            off
  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:                 MIMXRT117HxxxA_M7
  Target device parameters:      none
  Target interface:              SWD
  Target interface speed:        auto
  Target endian:                 little
  Connecting to J-Link...
  J-Link is connected.
  Device "MIMXRT117HXXXA_M7" selected.
  Firmware: J-Link V9 compiled Dec 13 2022 11:14:50
  Hardware: V9.20
  S/N: 25952328
  Feature(s): RDI, GDB, FlashDL, FlashBP, JFlash
  Checking target voltage...
  Target voltage: 3.30 V
  Listening on TCP/IP port 2331
  Connecting to target...
  Found SW-DP with ID 0x6BA02477
  Failed to power up DAP
  Found SW-DP with ID 0x6BA02477
  Failed to power up DAP
  Found SW-DP with ID 0x6BA02477
  Failed to power up DAP
  Found SW-DP with ID 0x6BA02477
  Failed to power up DAP
  ERROR: Could not connect to target.

请问一下可能是什么原因呢？谢谢      

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