RTT log doesn't show in Debug Terminal of emStudio v4.3

[yf13]

Hi,

I am using nRF SDK v16 with nRF52DK (pca10040) development board.

I've chosen to use RTT logging and I can see my app logs in JLinkRTTViewer window --- however, I can't see those logs in "Debug Terminal" of SEGGER emStudio v4.3. I can debug and progrand program the device within emStudio. I am using Ubuntu 18.04 desktop.

Does any one have similar issues and knows how to show RTT logs in the Debug Terminal?

Regards,

yf13

[Martin Lesund]

Hi yf13,

I am sorry for the misunderstanding, there was a typo in the case I sent.

The correct line is:

NRF_FPRINTF_FLAG_AUTOMATIC_CR_ON_LF_ENABLED

[yf13]

actually I had a typo above as well, the sdk_config.h reads like:

$ fgrep FLAG_AUTO sdk_config.h 
// <q> NRF_FPRINTF_FLAG_AUTOMATIC_CR_ON_LF_ENABLED  - For each printed LF, function will add CR.
#ifndef NRF_FPRINTF_FLAG_AUTOMATIC_CR_ON_LF_ENABLED
#define NRF_FPRINTF_FLAG_AUTOMATIC_CR_ON_LF_ENABLED 0
$

But the Debug Terminal still shows nothing even though RTT Viewer works.

Regards,

yf13

[Martin Lesund]

hi yf13,

what example have you based your application on?

Could you check this in the sdk_config.h?

NRF_LOG_BACKEND_RTT_ENABLED 1

NRF_LOG_ENABLED 1

[yf13]

my app is based on ble_peripharal/ble_app_template but I changed it to use s112 since I don't need s132. To confirm gain, log related config lines here:

$ cat sdk_config.h | fgrep NRF_LOG_ | fgrep -e LOG_ENABLED -e RTT_ENABLED
// <e> NRF_LOG_BACKEND_RTT_ENABLED - nrf_log_backend_rtt - Log RTT backend
#ifndef NRF_LOG_BACKEND_RTT_ENABLED
#define NRF_LOG_BACKEND_RTT_ENABLED 1
// <e> NRF_LOG_ENABLED - nrf_log - Logger
#ifndef NRF_LOG_ENABLED
#define NRF_LOG_ENABLED 1

So it seems that they are both ENABLED, otherwise I won't be able to see logs in JLinkRTTViewer.

BTW, I can always see logs with JLinkRTTViewer --- initially there are extra empty lines in the viewer which I solved by set NRF_FPRINTF_FLAG_AUTOMATIC_CR_ON_LF_ENABLED to 0. However, I've never seen logs from the DebugTerminal in the studio.

Regards,

yf13

[Martin Lesund]

Hi yf13,

I assume you only have one RTT terminal viewer open and not both when you are testing this?

Because it will not work having the JLinkRTTViewer + the Segger RTT viewer open at the same time.

[yf13]

Sorry I had clicked "verify answers" by mistake so I clicked "reject answer" as remedy...

Yes, when using DebugTerminal, I was not using RTTViewer.