samples/doc: segger: rtt: enhanced tracing/logging

fg-cfh · cfriedt · commit 781b6d7b0ab5 · 2023-08-06T07:44:06.000-04:00
Fixes a minor documentation issue and suggests/documents additional RTT
tracing and logging options.

Showcases logging via RTT UART which is now available w/o restrictions
due to the preceding change. This has been tested on CC13/26xx hardware.

Signed-off-by: Florian Grandel &lt;fgrandel@code-for-humans.de&gt;
diff --git a/doc/services/tracing/index.rst b/doc/services/tracing/index.rst
@@ -139,7 +139,7 @@ file available in the tree to your local configuration directory to override the
 builtin table::
 
         # On Linux and MacOS
-        cp ZEPHYR_BASE/subsys/tracing/sysview/SYSVIEW_Zephyr.txt ~/.config/SEGGER/
+        cp $ZEPHYR_BASE/subsys/tracing/sysview/SYSVIEW_Zephyr.txt ~/.config/SEGGER/
 
 User-Defined Tracing
 ====================
diff --git a/samples/subsys/logging/logger/segger_uart_rtt.conf b/samples/subsys/logging/logger/segger_uart_rtt.conf
@@ -0,0 +1,4 @@
+CONFIG_USE_SEGGER_RTT=y
+CONFIG_UART_RTT=y
+CONFIG_UART_ASYNC_API=y
+CONFIG_LOG_BACKEND_UART_ASYNC=y
diff --git a/samples/subsys/logging/logger/segger_uart_rtt.overlay b/samples/subsys/logging/logger/segger_uart_rtt.overlay
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+/ {
+	chosen {
+		zephyr,console = &rtt0;
+	};
+
+	rtt0: rtt_chan0 {
+		compatible = "segger,rtt-uart";
+		status = "okay";
+	};
+};
diff --git a/samples/subsys/tracing/prj.conf b/samples/subsys/tracing/prj.conf
@@ -1,4 +1,7 @@
 # enable to use thread names
 CONFIG_THREAD_NAME=y
 CONFIG_MP_MAX_NUM_CPUS=1
+
+# Debugging
+CONFIG_DEBUG_OPTIMIZATIONS=n
 CONFIG_DEBUG_THREAD_INFO=y
diff --git a/samples/subsys/tracing/prj_sysview.conf b/samples/subsys/tracing/prj_sysview.conf
@@ -1,3 +1,5 @@
 CONFIG_TRACING=y
 CONFIG_SEGGER_SYSTEMVIEW=y
 CONFIG_IDLE_STACK_SIZE=2048
+CONFIG_SEGGER_SYSTEMVIEW_BOOT_ENABLE=n
+CONFIG_SEGGER_SYSVIEW_POST_MORTEM_MODE=n
