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

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

yf13 — Sun, 12 Jan 2020 00:18:28 GMT

I confirmed that my working sdk_config.h doesn't have the RETARGET related lines as well.

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

yf13 — Sat, 11 Jan 2020 05:11:44 GMT

Somehow after using a clean sdk_config.h I can see the RTT log in Debug Terminal. But I can't tell which factor dominate the change.

I am sure I have almost the same as your above mentioned configs... just need double check the RETARGET_ENABLED one later.

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

Bjoern Gutgesell — Fri, 10 Jan 2020 08:40:28 GMT

Hi,

i had the same problem, and spent one whole day to solve this:

in sdk_config.h set:

#define NRF_LOG_ENABLED 1

#define NRF_LOG_BACKEND_UART_ENABLED 0

#define NRF_LOG_BACKEND_RTT_ENABLED 1

#define NRF_FPRINTF_FLAG_AUTOMATIC_CR_ON_LF_ENABLED 0

in sdk_config.h delete lines whith:

RETARGET_ENABLED

best regards

Bjoern

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

yf13 — Tue, 17 Dec 2019 12:07:35 GMT

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

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

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

Martin Lesund — Fri, 13 Dec 2019 14:31:46 GMT

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.

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

yf13 — Thu, 12 Dec 2019 02:28:18 GMT

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

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

Martin Lesund — Wed, 11 Dec 2019 15:02:36 GMT

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

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

yf13 — Wed, 11 Dec 2019 14:50:18 GMT

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

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

Martin Lesund — Wed, 11 Dec 2019 09:29:42 GMT

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

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

yf13 — Wed, 11 Dec 2019 01:32:15 GMT

Thanks, actually I already have NRF_PRINTF_FLAG_AUTOMATIC_CR_ON_LF_ENABLED as 0 in my sdk_config.h, but it doesn't help.

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

Martin Lesund — Tue, 10 Dec 2019 10:27:45 GMT

Hi yf13,

Please refer to this answer.

Best regards,

Martin L.