AnsweredAssumed Answered

S32K148 connection problem via JLink

Question asked by 文明 徐 on Apr 4, 2020
Latest reply on Apr 9, 2020 by 文明 徐

Hello,

 

CONNECTION LOG

SEGGER J-Link Commander V6.64 (Compiled Mar 13 2020 15:56:13)
DLL version V6.64, compiled Mar 13 2020 15:55:42

Connecting to J-Link via USB...O.K.
Firmware: J-Link V10 compiled Jan 7 2020 16:51:47
Hardware version: V10.10
S/N: 600110430
License(s): RDI, FlashBP, FlashDL, JFlash, GDB
VTref=4.384V


Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: S32K148
Type '?' for selection dialog
Device>
Please specify target interface:
J) JTAG (Default)
S) SWD
T) cJTAG
TIF>S
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>
Device "S32K148" selected.


Connecting to target via SWD
InitTarget() start
InitTarget()
Connect Under Reset
Communication error while accessing MDM-AP.
Connect Under Reset
InitTarget() end
InitTarget() start
InitTarget()
Connect Under Reset
Communication error while accessing MDM-AP.
Connect Under Reset
InitTarget() end
InitTarget() start
InitTarget()
Connect Under Reset
Communication error while accessing MDM-AP.
Connect Under Reset
InitTarget() end
InitTarget() start
InitTarget()
Connect Under Reset
Communication error while accessing MDM-AP.
Connect Under Reset
InitTarget() end
Cannot connect to target.

 

I successfully connected twice to same target board with same JLink, but most of times, it's failed. 

Please help me out. 

 

Best regards,

Matthew Xu

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