Could not connect to target.
Please check power, connection and settings.SEGGER J-Link GDB Server V6.42a Command Line Version
JLinkARM.dll V6.42a (DLL compiled Feb 1 2019 18:00:08)
Command line: -if jtag -device Cortex-M0 -endian little -speed auto -port 2331 -swoport 2332 -telnetport 2333 -vd -noreset -noir -localhostonly 1 -singlerun -strict -timeout 0 -nogui
-----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: Cortex-M0
Target interface: JTAG
Target interface speed: auto
Target endian: little
Connecting to J-Link...
J-Link is connected.
Firmware: J-Link OB-SAM3U128 V3 compiled Jan 7 2019 14:06:26
硬件:V3.00
S/N: 483000924
Feature(s): RDI
Checking target voltage...
Target voltage: 3.30 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...
QLayout: Attempting to add QLayout "" to MainWindow "", which already has a layout
QLayout: Attempting to add QLayout "" to MainWindow "", which already has a layout
Hi Mohammedhusen,
Could you please clarify if you have developed a custom board or if you are working on any of our development kits? I would suggest you to use the SmartSnippets and download firmware to the QSPI flash using both JTAG and UART. First, it is recommended to erase the QSPI flash. Are you able to download firmware through SmartSnippets? Also, I would suggest you to execute JLinkGDBServer.exe in the segger folder to see if Cortex-M0 can be found or not. This is just to check the SoC on your custom board run well.
Thanks, PM_Dialog
Hi PM_Dialog,
I have exactly the same problem but with da14695 on custom board. It is not possible to use uart in case of pcb layout, but jtag only. SmartSnippetsStudio and python scripts both works well, but in our project we need to use cli_programmer directly to boot prebuilded image to the device.
Could you please tell if you have solve this problem by this moment?
Thanks,
Feodor Alexandrov
Hi Feodor,
我们将把它offline from the forum and reach out to you direclty.
Thanks, PM_Dialog