Could not find RTT Control Block - Systemview

[morpho]

I am trying to set up a Segger Systemview for trace FreeRTOS/ISR events while the application is running, but upon doing so, I see Could not find RTT Control Block.
Timeout: 20000 ms error.

Target interface = SWD at a speed of 4MHz, and RTT Control block = Auto Detection.

[Amanda Hsieh]

Hi, 

This post might help. 

-Amanda H.

[morpho]

Hi! In the last comment, it's mentioned that the changes will be integrated into the nRF's SDK 10 months ago. Can you please clarify if they have been integrated yet?

[Amanda Hsieh]

Hi,

Unfortunately, not yet. Sorry for the inconvenience. 

-Amanda H.

[morpho]

What's the preferred way of applying a patch? I downloaded the patch files and run the following commands inside project/pca10056/s140/ses, and get an error: 

error: invalid path '../../../../../../external/freertos/source/include/FreeRTOS.h'

git diff ../../../../../../external/freertos/source/include/FreeRTOS.h ../../../../SystemView\ Patched\ files/FreeRTOS.h > rtos-conf.patch

git apply rtos-conf.patch

[Amanda Hsieh]

I would suggest you consult the patch owner. 

-Amanda H.

[morpho]

so Nordic doesn't really have official support for systemview since the patches aren't integrated?

[Amanda Hsieh]

We take a look at that patched file. It is not a patch file format, so you cannot use the git diff. Try to unzip the file and replace the corresponding files in the SDK. 

-Amanda H.

[morpho]

I'm now seeing Could not find SystemView Buffer error. Am I not supposed to invoking some APIs in the application?

[Amanda Hsieh]

Hi, 

Check out this post. I would also suggest to seek support from segger segger.com/ticket/

-Amanda H.