Simple script for J-Link RTT viewer

Volcano 2018-04-08 15:10

I debug NRF52 chip with JLink real time terminal. It’s pretty to use J-Link RTT viewer on my macOS. For example, I ran this command for open a RTT viewer window.

you@yourcomputer:~$JLinkExe -device nRF52 -speed 4000 -if SWD -autoconnect 1

SEGGER J-Link Commander V5.10u (Compiled Mar 17 2016 19:06:22)
DLL version V5.10u, compiled Mar 17 2016 19:06:19

Connecting to J-Link via USB...O.K.
Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Mar 15 2016 18:03:17
Hardware version: V1.00
VTref = 3.300V


Type "connect" to establish a target connection, '?' for help

We can use JLinkRTTClient to check the RTT output. But sometimes JLinkRTTClient will not reconnect if the JLinkExe reopened. A simple script can do this job

while true; do nc localhost 19021; sleep 2; done;

I’ve written this line in my makefile.

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