how to use swo debug in 52832 with jlink

[shai735]

i have used this case:devzone.nordicsemi.com/.../using-swo-with-nrf52-redux  and add ENABLE_SWO  but when i flash and use jlink swo viewer,it will have this problem.

if use jlink.exe and input command.it will have this problem.it can't receive swo debug

could you give me some help please? Thanks very much

[Jared]

Hi there,

What's reason for using SWO? It's usually not required to get log output from the RTT, that would only require SWDCLK and SWDIO,

regards

Jared 

[shai735]

I just want to try three debug ways in nrf mcu,like rtt ,uart and swo.but in swo,i fellow the case which i provide,but can't get correct debug.The problem is that j-link update to make it?Thanks!

[Jared]

Hi,

SWO is not necessary to get basic debug information over RTT. Just connect SWDIO and SWDCLK correctly, make sure that RTT has been enabled as backend for the log module in the project settings. Then open J-link RTT viewer and you should be able to read out the debug logs.

regards

Jared