JLinkExe connect crashes firmware

[schef]

Hello, 4 of 5 times when i want to connect to my firmware using RTT the firmware crashes. Commands that i use are:

terminal one: JLinkExe -if SWD -device nrf52 -speed 4000 -autoconnect 1

terminal two: telnet localhost 19021

Now why i write connect in terminal one is related to this thread here: devzone.nordicsemi.com/.../

I use SEGGER J-Link Commander V6.22g (Compiled Jan 17 2018 16:40:37) on ubuntu with nrf52832 and sdk14.1.

Thanks

[Vidar Berg]

Hello,

I'm using a similar approach for viewing RTT logs on windows, and haven't experienced this problem. Maybe it helps if you reset the chip after connecting:

jlink.exe (JLinkExe on ubuntu) -if SWD -device nrf52 -speed 4000 -autoconnect 1 -CommanderScript run.jlink
jlinkrttclient

Attachment

• run.jlink

[schef]

Here is something i got <error> app: fatal error id: 4097 <error> app: SOFTDEVICE: INVALID MEMORY ACCESS app_error_save_and_stop ERROR 1405 [Unknown error code] at KGJh��@h:1024 - 1s

[schef]

I don't want to reset the chip this is the thing :)

[Vidar Berg]

I updated my Jlink to 6.22g but did not manage to reproduce this (I.e., assert when attaching to running target). Have you tried the same with our SDK examples?

[schef]

No i have not. I should.