diff --git a/examples/chef/silabs/include/AppTask.h b/examples/chef/silabs/include/AppTask.h
index 2aa1b8acaaa847..578d0a17834d29 100644
--- a/examples/chef/silabs/include/AppTask.h
+++ b/examples/chef/silabs/include/AppTask.h
@@ -28,9 +28,8 @@
 
 #include "AppEvent.h"
 #include "BaseApplication.h"
-#include "FreeRTOS.h"
-#include "timers.h" // provides FreeRTOS timer support
 #include <ble/BLEEndPoint.h>
+#include <cmsis_os2.h>
 #include <lib/core/CHIPError.h>
 #include <platform/CHIPDeviceLayer.h>
 
diff --git a/examples/chef/silabs/src/AppTask.cpp b/examples/chef/silabs/src/AppTask.cpp
index 0375f68d542249..aed343e1b3750f 100644
--- a/examples/chef/silabs/src/AppTask.cpp
+++ b/examples/chef/silabs/src/AppTask.cpp
@@ -81,7 +81,7 @@ CHIP_ERROR AppTask::StartAppTask()
 void AppTask::AppTaskMain(void * pvParameter)
 {
     AppEvent event;
-    QueueHandle_t sAppEventQueue = *(static_cast<QueueHandle_t *>(pvParameter));
+    osMessageQueueId_t sAppEventQueue = *(static_cast<osMessageQueueId_t *>(pvParameter));
 
     CHIP_ERROR err = sAppTask.Init();
     if (err != CHIP_NO_ERROR)
@@ -94,11 +94,11 @@ void AppTask::AppTaskMain(void * pvParameter)
 
     while (true)
     {
-        BaseType_t eventReceived = xQueueReceive(sAppEventQueue, &event, pdMS_TO_TICKS(10));
-        while (eventReceived == pdTRUE)
+        osStatus_t eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, osWaitForever);
+        while (eventReceived == osOK)
         {
             sAppTask.DispatchEvent(&event);
-            eventReceived = xQueueReceive(sAppEventQueue, &event, 0);
+            eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, 0);
         }
     }
 }
diff --git a/examples/light-switch-app/silabs/include/AppTask.h b/examples/light-switch-app/silabs/include/AppTask.h
index 50a04dadf10df5..a6a74b4605f52c 100644
--- a/examples/light-switch-app/silabs/include/AppTask.h
+++ b/examples/light-switch-app/silabs/include/AppTask.h
@@ -28,9 +28,8 @@
 
 #include "AppEvent.h"
 #include "BaseApplication.h"
-#include "FreeRTOS.h"
-#include "timers.h" // provides FreeRTOS timer support
 #include <ble/BLEEndPoint.h>
+#include <cmsis_os2.h>
 #include <lib/core/CHIPError.h>
 #include <platform/CHIPDeviceLayer.h>
 
diff --git a/examples/light-switch-app/silabs/src/AppTask.cpp b/examples/light-switch-app/silabs/src/AppTask.cpp
index c9759d24118fdd..140a99136d6ef3 100644
--- a/examples/light-switch-app/silabs/src/AppTask.cpp
+++ b/examples/light-switch-app/silabs/src/AppTask.cpp
@@ -105,7 +105,7 @@ CHIP_ERROR AppTask::StartAppTask()
 void AppTask::AppTaskMain(void * pvParameter)
 {
     AppEvent event;
-    QueueHandle_t sAppEventQueue = *(static_cast<QueueHandle_t *>(pvParameter));
+    osMessageQueueId_t sAppEventQueue = *(static_cast<osMessageQueueId_t *>(pvParameter));
 
     CHIP_ERROR err = sAppTask.Init();
     if (err != CHIP_NO_ERROR)
@@ -121,11 +121,11 @@ void AppTask::AppTaskMain(void * pvParameter)
     SILABS_LOG("App Task started");
     while (true)
     {
-        BaseType_t eventReceived = xQueueReceive(sAppEventQueue, &event, portMAX_DELAY);
-        while (eventReceived == pdTRUE)
+        osStatus_t eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, osWaitForever);
+        while (eventReceived == osOK)
         {
             sAppTask.DispatchEvent(&event);
-            eventReceived = xQueueReceive(sAppEventQueue, &event, 0);
+            eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, 0);
         }
     }
 }
diff --git a/examples/lighting-app/silabs/include/AppTask.h b/examples/lighting-app/silabs/include/AppTask.h
index 1f47264349bd51..450d9c61b719b4 100644
--- a/examples/lighting-app/silabs/include/AppTask.h
+++ b/examples/lighting-app/silabs/include/AppTask.h
@@ -28,10 +28,9 @@
 
 #include "AppEvent.h"
 #include "BaseApplication.h"
-#include "FreeRTOS.h"
 #include "LightingManager.h"
-#include "timers.h" // provides FreeRTOS timer support
 #include <ble/BLEEndPoint.h>
+#include <cmsis_os2.h>
 #include <lib/core/CHIPError.h>
 #include <platform/CHIPDeviceLayer.h>
 
diff --git a/examples/lighting-app/silabs/src/AppTask.cpp b/examples/lighting-app/silabs/src/AppTask.cpp
index 7430bd2828d233..338d6d85e2ef51 100644
--- a/examples/lighting-app/silabs/src/AppTask.cpp
+++ b/examples/lighting-app/silabs/src/AppTask.cpp
@@ -117,7 +117,7 @@ CHIP_ERROR AppTask::StartAppTask()
 void AppTask::AppTaskMain(void * pvParameter)
 {
     AppEvent event;
-    QueueHandle_t sAppEventQueue = *(static_cast<QueueHandle_t *>(pvParameter));
+    osMessageQueueId_t sAppEventQueue = *(static_cast<osMessageQueueId_t *>(pvParameter));
 
     CHIP_ERROR err = sAppTask.Init();
     if (err != CHIP_NO_ERROR)
@@ -134,11 +134,11 @@ void AppTask::AppTaskMain(void * pvParameter)
 
     while (true)
     {
-        BaseType_t eventReceived = xQueueReceive(sAppEventQueue, &event, portMAX_DELAY);
-        while (eventReceived == pdTRUE)
+        osStatus_t eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, osWaitForever);
+        while (eventReceived == osOK)
         {
             sAppTask.DispatchEvent(&event);
-            eventReceived = xQueueReceive(sAppEventQueue, &event, 0);
+            eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, 0);
         }
     }
 }
diff --git a/examples/lit-icd-app/silabs/include/AppTask.h b/examples/lit-icd-app/silabs/include/AppTask.h
index e653f3680defc2..1fc5f2fae5f18c 100644
--- a/examples/lit-icd-app/silabs/include/AppTask.h
+++ b/examples/lit-icd-app/silabs/include/AppTask.h
@@ -28,9 +28,8 @@
 
 #include "AppEvent.h"
 #include "BaseApplication.h"
-#include "FreeRTOS.h"
-#include "timers.h" // provides FreeRTOS timer support
 #include <ble/BLEEndPoint.h>
+#include <cmsis_os2.h>
 #include <lib/core/CHIPError.h>
 #include <platform/CHIPDeviceLayer.h>
 
diff --git a/examples/lit-icd-app/silabs/src/AppTask.cpp b/examples/lit-icd-app/silabs/src/AppTask.cpp
index f960375dab2b16..bb7bf1a77bc17e 100644
--- a/examples/lit-icd-app/silabs/src/AppTask.cpp
+++ b/examples/lit-icd-app/silabs/src/AppTask.cpp
@@ -94,7 +94,7 @@ CHIP_ERROR AppTask::StartAppTask()
 void AppTask::AppTaskMain(void * pvParameter)
 {
     AppEvent event;
-    QueueHandle_t sAppEventQueue = *(static_cast<QueueHandle_t *>(pvParameter));
+    osMessageQueueId_t sAppEventQueue = *(static_cast<osMessageQueueId_t *>(pvParameter));
 
     CHIP_ERROR err = sAppTask.Init();
     if (err != CHIP_NO_ERROR)
@@ -110,11 +110,11 @@ void AppTask::AppTaskMain(void * pvParameter)
     SILABS_LOG("App Task started");
     while (true)
     {
-        BaseType_t eventReceived = xQueueReceive(sAppEventQueue, &event, portMAX_DELAY);
-        while (eventReceived == pdTRUE)
+        osStatus_t eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, osWaitForever);
+        while (eventReceived == osOK)
         {
             sAppTask.DispatchEvent(&event);
-            eventReceived = xQueueReceive(sAppEventQueue, &event, 0);
+            eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, 0);
         }
     }
 }
diff --git a/examples/lock-app/silabs/include/AppTask.h b/examples/lock-app/silabs/include/AppTask.h
index 01dbee88262543..e1560ac19439b5 100644
--- a/examples/lock-app/silabs/include/AppTask.h
+++ b/examples/lock-app/silabs/include/AppTask.h
@@ -28,10 +28,9 @@
 
 #include "AppEvent.h"
 #include "BaseApplication.h"
-#include "FreeRTOS.h"
 #include "LockManager.h"
-#include "timers.h" // provides FreeRTOS timer support
 #include <ble/BLEEndPoint.h>
+#include <cmsis_os2.h>
 #include <lib/core/CHIPError.h>
 #include <platform/CHIPDeviceLayer.h>
 
diff --git a/examples/lock-app/silabs/src/AppTask.cpp b/examples/lock-app/silabs/src/AppTask.cpp
index 2510fa7f351c03..6937dbb78e8aa5 100644
--- a/examples/lock-app/silabs/src/AppTask.cpp
+++ b/examples/lock-app/silabs/src/AppTask.cpp
@@ -210,7 +210,7 @@ CHIP_ERROR AppTask::StartAppTask()
 void AppTask::AppTaskMain(void * pvParameter)
 {
     AppEvent event;
-    QueueHandle_t sAppEventQueue = *(static_cast<QueueHandle_t *>(pvParameter));
+    osMessageQueueId_t sAppEventQueue = *(static_cast<osMessageQueueId_t *>(pvParameter));
 
     CHIP_ERROR err = sAppTask.Init();
     if (err != CHIP_NO_ERROR)
@@ -230,11 +230,11 @@ void AppTask::AppTaskMain(void * pvParameter)
 
     while (true)
     {
-        BaseType_t eventReceived = xQueueReceive(sAppEventQueue, &event, portMAX_DELAY);
-        while (eventReceived == pdTRUE)
+        osStatus_t eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, osWaitForever);
+        while (eventReceived == osOK)
         {
             sAppTask.DispatchEvent(&event);
-            eventReceived = xQueueReceive(sAppEventQueue, &event, 0);
+            eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, 0);
         }
     }
 }
diff --git a/examples/pump-app/silabs/include/AppTask.h b/examples/pump-app/silabs/include/AppTask.h
index 84e44d45a4b302..69bf7021bf47dd 100644
--- a/examples/pump-app/silabs/include/AppTask.h
+++ b/examples/pump-app/silabs/include/AppTask.h
@@ -28,10 +28,9 @@
 
 #include "AppEvent.h"
 #include "BaseApplication.h"
-#include "FreeRTOS.h"
 #include "PumpManager.h"
-#include "timers.h" // provides FreeRTOS timer support
 #include <ble/BLEEndPoint.h>
+#include <cmsis_os2.h>
 #include <lib/core/CHIPError.h>
 #include <platform/CHIPDeviceLayer.h>
 
diff --git a/examples/pump-app/silabs/src/AppTask.cpp b/examples/pump-app/silabs/src/AppTask.cpp
index 365c53fc7a33ac..1b4881ff77db51 100644
--- a/examples/pump-app/silabs/src/AppTask.cpp
+++ b/examples/pump-app/silabs/src/AppTask.cpp
@@ -125,7 +125,7 @@ CHIP_ERROR AppTask::StartAppTask()
 void AppTask::AppTaskMain(void * pvParameter)
 {
     AppEvent event;
-    QueueHandle_t sAppEventQueue = *(static_cast<QueueHandle_t *>(pvParameter));
+    osMessageQueueId_t sAppEventQueue = *(static_cast<osMessageQueueId_t *>(pvParameter));
 
     CHIP_ERROR err = sAppTask.Init();
     if (err != CHIP_NO_ERROR)
@@ -142,11 +142,11 @@ void AppTask::AppTaskMain(void * pvParameter)
 
     while (true)
     {
-        BaseType_t eventReceived = xQueueReceive(sAppEventQueue, &event, portMAX_DELAY);
-        while (eventReceived == pdTRUE)
+        osStatus_t eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, osWaitForever);
+        while (eventReceived == osOK)
         {
             sAppTask.DispatchEvent(&event);
-            eventReceived = xQueueReceive(sAppEventQueue, &event, 0);
+            eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, 0);
         }
     }
 }
diff --git a/examples/smoke-co-alarm-app/silabs/include/AppTask.h b/examples/smoke-co-alarm-app/silabs/include/AppTask.h
index b91ef5e1335a28..9e68505d341a36 100644
--- a/examples/smoke-co-alarm-app/silabs/include/AppTask.h
+++ b/examples/smoke-co-alarm-app/silabs/include/AppTask.h
@@ -26,10 +26,9 @@
 
 #include "AppEvent.h"
 #include "BaseApplication.h"
-#include "FreeRTOS.h"
 #include "SmokeCoAlarmManager.h"
-#include "timers.h" // provides FreeRTOS timer support
 #include <ble/BLEEndPoint.h>
+#include <cmsis_os2.h>
 #include <lib/core/CHIPError.h>
 #include <platform/CHIPDeviceLayer.h>
 
diff --git a/examples/smoke-co-alarm-app/silabs/src/AppTask.cpp b/examples/smoke-co-alarm-app/silabs/src/AppTask.cpp
index 0ead0862709abd..9db4af7c127902 100644
--- a/examples/smoke-co-alarm-app/silabs/src/AppTask.cpp
+++ b/examples/smoke-co-alarm-app/silabs/src/AppTask.cpp
@@ -112,7 +112,7 @@ CHIP_ERROR AppTask::StartAppTask()
 void AppTask::AppTaskMain(void * pvParameter)
 {
     AppEvent event;
-    QueueHandle_t sAppEventQueue = *(static_cast<QueueHandle_t *>(pvParameter));
+    osMessageQueueId_t sAppEventQueue = *(static_cast<osMessageQueueId_t *>(pvParameter));
 
     CHIP_ERROR err = sAppTask.Init();
     if (err != CHIP_NO_ERROR)
@@ -129,11 +129,11 @@ void AppTask::AppTaskMain(void * pvParameter)
 
     while (true)
     {
-        BaseType_t eventReceived = xQueueReceive(sAppEventQueue, &event, portMAX_DELAY);
-        while (eventReceived == pdTRUE)
+        osStatus_t eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, osWaitForever);
+        while (eventReceived == osOK)
         {
             sAppTask.DispatchEvent(&event);
-            eventReceived = xQueueReceive(sAppEventQueue, &event, 0);
+            eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, 0);
         }
     }
 }
diff --git a/examples/thermostat/silabs/include/AppTask.h b/examples/thermostat/silabs/include/AppTask.h
index 695b7d5b8ed751..25177b9ab43808 100644
--- a/examples/thermostat/silabs/include/AppTask.h
+++ b/examples/thermostat/silabs/include/AppTask.h
@@ -32,11 +32,10 @@
 
 #include "AppEvent.h"
 #include "BaseApplication.h"
-#include "FreeRTOS.h"
 #include "SensorManager.h"
 #include "TemperatureManager.h"
-#include "timers.h" // provides FreeRTOS timer support
 #include <ble/BLEEndPoint.h>
+#include <cmsis_os2.h>
 #include <lib/core/CHIPError.h>
 #include <platform/CHIPDeviceLayer.h>
 
diff --git a/examples/thermostat/silabs/src/AppTask.cpp b/examples/thermostat/silabs/src/AppTask.cpp
index b58ad0a288a99e..e033a3fe2b9144 100644
--- a/examples/thermostat/silabs/src/AppTask.cpp
+++ b/examples/thermostat/silabs/src/AppTask.cpp
@@ -113,7 +113,7 @@ CHIP_ERROR AppTask::StartAppTask()
 void AppTask::AppTaskMain(void * pvParameter)
 {
     AppEvent event;
-    QueueHandle_t sAppEventQueue = *(static_cast<QueueHandle_t *>(pvParameter));
+    osMessageQueueId_t sAppEventQueue = *(static_cast<osMessageQueueId_t *>(pvParameter));
 
     CHIP_ERROR err = sAppTask.Init();
     if (err != CHIP_NO_ERROR)
@@ -129,11 +129,11 @@ void AppTask::AppTaskMain(void * pvParameter)
     SILABS_LOG("App Task started");
     while (true)
     {
-        BaseType_t eventReceived = xQueueReceive(sAppEventQueue, &event, portMAX_DELAY);
-        while (eventReceived == pdTRUE)
+        osStatus_t eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, osWaitForever);
+        while (eventReceived == osOK)
         {
             sAppTask.DispatchEvent(&event);
-            eventReceived = xQueueReceive(sAppEventQueue, &event, 0);
+            eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, 0);
         }
     }
 }
diff --git a/examples/window-app/silabs/include/AppTask.h b/examples/window-app/silabs/include/AppTask.h
index bd05d30f85acd1..268e5eea415a06 100644
--- a/examples/window-app/silabs/include/AppTask.h
+++ b/examples/window-app/silabs/include/AppTask.h
@@ -27,9 +27,8 @@
 #include <stdint.h>
 
 #include "BaseApplication.h"
-#include "FreeRTOS.h"
-#include "timers.h" // provides FreeRTOS timer support
 #include <ble/BLEEndPoint.h>
+#include <cmsis_os2.h>
 #include <lib/core/CHIPError.h>
 #include <platform/CHIPDeviceLayer.h>
 
diff --git a/examples/window-app/silabs/src/AppTask.cpp b/examples/window-app/silabs/src/AppTask.cpp
index e8b5cc332bfc2f..f255beda6851b6 100644
--- a/examples/window-app/silabs/src/AppTask.cpp
+++ b/examples/window-app/silabs/src/AppTask.cpp
@@ -80,9 +80,8 @@ CHIP_ERROR AppTask::StartAppTask()
 
 void AppTask::AppTaskMain(void * pvParameter)
 {
-
     AppEvent event;
-    QueueHandle_t sAppEventQueue = *(static_cast<QueueHandle_t *>(pvParameter));
+    osMessageQueueId_t sAppEventQueue = *(static_cast<osMessageQueueId_t *>(pvParameter));
 
     CHIP_ERROR err = sAppTask.Init();
     if (err != CHIP_NO_ERROR)
@@ -102,11 +101,11 @@ void AppTask::AppTaskMain(void * pvParameter)
 
     while (true)
     {
-        BaseType_t eventReceived = xQueueReceive(sAppEventQueue, &event, portMAX_DELAY);
-        while (eventReceived == pdTRUE)
+        osStatus_t eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, osWaitForever);
+        while (eventReceived == osOK)
         {
             sAppTask.DispatchEvent(&event);
-            eventReceived = xQueueReceive(sAppEventQueue, &event, 0);
+            eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, 0);
         }
     }
 }