diff --git a/Core/Src/dma.c b/Core/Src/dma.c
index c34a3c2..d3a1bd5 100644
--- a/Core/Src/dma.c
+++ b/Core/Src/dma.c
@@ -46,7 +46,7 @@ void MX_DMA_Init(void)
   __HAL_RCC_DMA1_CLK_ENABLE();
   __HAL_RCC_DMA2_CLK_ENABLE();
   /* DMA interrupt init */
-
+#if 0
   // **** TIM1_CH2 WS2812B @ PA-9
   HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);
   HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
@@ -59,7 +59,7 @@ void MX_DMA_Init(void)
   HAL_NVIC_SetPriority(DMA1_Channel3_IRQn, 0, 0);
   HAL_NVIC_EnableIRQ(DMA1_Channel3_IRQn);
   // **** SPI1
-
+#endif
   // **** I2C2
   /* DMA1_Channel4_IRQn interrupt configuration */
   HAL_NVIC_SetPriority(DMA1_Channel4_IRQn, 0, 0);
@@ -79,11 +79,11 @@ void MX_DMA_Init(void)
   HAL_NVIC_SetPriority(DMA1_Channel7_IRQn, 0, 0);
   HAL_NVIC_EnableIRQ(DMA1_Channel7_IRQn);
   // **** USART2
-
+#if 0
   /* DMA2_Channel1_IRQn interrupt configuration */
   HAL_NVIC_SetPriority(DMA2_Channel1_IRQn, 0, 0);
   HAL_NVIC_EnableIRQ(DMA2_Channel1_IRQn);
-
+#endif
 
 }
 
diff --git a/Core/Src/rtc.c b/Core/Src/rtc.c
index 436dbf3..7c2121f 100644
--- a/Core/Src/rtc.c
+++ b/Core/Src/rtc.c
@@ -67,7 +67,7 @@ void MX_RTC_Init(void)
   {
     Error_Handler();
   }
-
+#if 0
   /** Enable the Alarm A
   */
   sAlarm.BinaryAutoClr = RTC_ALARMSUBSECONDBIN_AUTOCLR_NO;
@@ -80,7 +80,7 @@ void MX_RTC_Init(void)
     Error_Handler();
   }
   /* USER CODE BEGIN RTC_Init 2 */
-
+#endif
   /* USER CODE END RTC_Init 2 */
 
 }
diff --git a/Core/Src/stm32wlxx_it.c b/Core/Src/stm32wlxx_it.c
index 3bb6950..d3a33e3 100644
--- a/Core/Src/stm32wlxx_it.c
+++ b/Core/Src/stm32wlxx_it.c
@@ -315,7 +315,7 @@ void DMA1_Channel5_IRQHandler(void)
   /* USER CODE BEGIN DMA1_Channel5_IRQn 0 */
 
   /* USER CODE END DMA1_Channel5_IRQn 0 */
-  HAL_DMA_IRQHandler(&hdma_usart2_tx);
+  HAL_DMA_IRQHandler(&hdma_i2c2_tx);
   /* USER CODE BEGIN DMA1_Channel5_IRQn 1 */
 
   /* USER CODE END DMA1_Channel5_IRQn 1 */
diff --git a/Core/Src/sys_app.c b/Core/Src/sys_app.c
index 2839e9d..a53bbe7 100644
--- a/Core/Src/sys_app.c
+++ b/Core/Src/sys_app.c
@@ -123,7 +123,7 @@ void SystemApp_Init(void)
   UTIL_LPM_Init();
   /* Disable Stand-by mode */
   //UTIL_LPM_SetOffMode((1 << CFG_LPM_APPLI_Id), UTIL_LPM_DISABLE);
-  UTIL_LPM_SetOffMode((1 << CFG_LPM_APPLI_Id), UTIL_LPM_ENABLE);
+  UTIL_LPM_SetOffMode((1 << CFG_LPM_APPLI_Id), UTIL_LPM_DISABLE);
 
 #if defined (LOW_POWER_DISABLE) && (LOW_POWER_DISABLE == 1)
   /* Disable Stop Mode */
diff --git a/Core/Src/usart_if.c b/Core/Src/usart_if.c
index a13826a..471af60 100644
--- a/Core/Src/usart_if.c
+++ b/Core/Src/usart_if.c
@@ -128,7 +128,7 @@ UTIL_ADV_TRACE_Status_t vcom_DeInit(void)
 
   /* ##-3- Disable the NVIC for DMA ########################################### */
   /* USER CODE BEGIN 1 */
-  HAL_NVIC_DisableIRQ(DMA1_Channel5_IRQn);
+  HAL_NVIC_DisableIRQ(DMA1_Channel7_IRQn);
 
   return UTIL_ADV_TRACE_OK;
   /* USER CODE END 1 */
diff --git a/STM32CubeIDE/.settings/language.settings.xml b/STM32CubeIDE/.settings/language.settings.xml
index f00ccb2..fbde3f0 100644
--- a/STM32CubeIDE/.settings/language.settings.xml
+++ b/STM32CubeIDE/.settings/language.settings.xml
@@ -5,7 +5,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1553454923168292746" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-914207715913278870" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
@@ -16,7 +16,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1553454923168292746" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-914207715913278870" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
diff --git a/STM32CubeIDE/Release/Application/User/Core/subdir.mk b/STM32CubeIDE/Release/Application/User/Core/subdir.mk
index 88ecaa9..b7e62bc 100644
--- a/STM32CubeIDE/Release/Application/User/Core/subdir.mk
+++ b/STM32CubeIDE/Release/Application/User/Core/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Application/User/LoRaWAN/App/subdir.mk b/STM32CubeIDE/Release/Application/User/LoRaWAN/App/subdir.mk
index a2e3a46..83587c4 100644
--- a/STM32CubeIDE/Release/Application/User/LoRaWAN/App/subdir.mk
+++ b/STM32CubeIDE/Release/Application/User/LoRaWAN/App/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Application/User/LoRaWAN/Target/subdir.mk b/STM32CubeIDE/Release/Application/User/LoRaWAN/Target/subdir.mk
index f2fbaa6..795d1a7 100644
--- a/STM32CubeIDE/Release/Application/User/LoRaWAN/Target/subdir.mk
+++ b/STM32CubeIDE/Release/Application/User/LoRaWAN/Target/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Application/User/Startup/subdir.mk b/STM32CubeIDE/Release/Application/User/Startup/subdir.mk
index d0c679e..140938e 100644
--- a/STM32CubeIDE/Release/Application/User/Startup/subdir.mk
+++ b/STM32CubeIDE/Release/Application/User/Startup/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Application/User/TOF/App/subdir.mk b/STM32CubeIDE/Release/Application/User/TOF/App/subdir.mk
index ce33568..6cf3252 100644
--- a/STM32CubeIDE/Release/Application/User/TOF/App/subdir.mk
+++ b/STM32CubeIDE/Release/Application/User/TOF/App/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Application/User/TOF/Target/subdir.mk b/STM32CubeIDE/Release/Application/User/TOF/Target/subdir.mk
index 139123e..5f3a3a5 100644
--- a/STM32CubeIDE/Release/Application/User/TOF/Target/subdir.mk
+++ b/STM32CubeIDE/Release/Application/User/TOF/Target/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Application/User/TOF/vl53l0x/subdir.mk b/STM32CubeIDE/Release/Application/User/TOF/vl53l0x/subdir.mk
index 03bcb22..59fbacd 100644
--- a/STM32CubeIDE/Release/Application/User/TOF/vl53l0x/subdir.mk
+++ b/STM32CubeIDE/Release/Application/User/TOF/vl53l0x/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Drivers/BSP/STM32WLxx_Nucleo/subdir.mk b/STM32CubeIDE/Release/Drivers/BSP/STM32WLxx_Nucleo/subdir.mk
index bb422b6..0ae2267 100644
--- a/STM32CubeIDE/Release/Drivers/BSP/STM32WLxx_Nucleo/subdir.mk
+++ b/STM32CubeIDE/Release/Drivers/BSP/STM32WLxx_Nucleo/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Drivers/CMSIS/subdir.mk b/STM32CubeIDE/Release/Drivers/CMSIS/subdir.mk
index 6687803..84ff145 100644
--- a/STM32CubeIDE/Release/Drivers/CMSIS/subdir.mk
+++ b/STM32CubeIDE/Release/Drivers/CMSIS/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Drivers/STM32WLxx_HAL_Driver/subdir.mk b/STM32CubeIDE/Release/Drivers/STM32WLxx_HAL_Driver/subdir.mk
index bedfcf1..e45e7ff 100644
--- a/STM32CubeIDE/Release/Drivers/STM32WLxx_HAL_Driver/subdir.mk
+++ b/STM32CubeIDE/Release/Drivers/STM32WLxx_HAL_Driver/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Middlewares/LoRaWAN/subdir.mk b/STM32CubeIDE/Release/Middlewares/LoRaWAN/subdir.mk
index 4811cd4..59556e4 100644
--- a/STM32CubeIDE/Release/Middlewares/LoRaWAN/subdir.mk
+++ b/STM32CubeIDE/Release/Middlewares/LoRaWAN/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Middlewares/SubGHz_Phy/subdir.mk b/STM32CubeIDE/Release/Middlewares/SubGHz_Phy/subdir.mk
index bf48e59..bd1bf56 100644
--- a/STM32CubeIDE/Release/Middlewares/SubGHz_Phy/subdir.mk
+++ b/STM32CubeIDE/Release/Middlewares/SubGHz_Phy/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/Utilities/subdir.mk b/STM32CubeIDE/Release/Utilities/subdir.mk
index 34277f1..73f5ca0 100644
--- a/STM32CubeIDE/Release/Utilities/subdir.mk
+++ b/STM32CubeIDE/Release/Utilities/subdir.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
diff --git a/STM32CubeIDE/Release/makefile b/STM32CubeIDE/Release/makefile
index 075cedb..08d3e48 100644
--- a/STM32CubeIDE/Release/makefile
+++ b/STM32CubeIDE/Release/makefile
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 -include ../makefile.init
diff --git a/STM32CubeIDE/Release/objects.mk b/STM32CubeIDE/Release/objects.mk
index 574d50b..a5103de 100644
--- a/STM32CubeIDE/Release/objects.mk
+++ b/STM32CubeIDE/Release/objects.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 USER_OBJS :=
diff --git a/STM32CubeIDE/Release/sources.mk b/STM32CubeIDE/Release/sources.mk
index 2263890..8cc1ed4 100644
--- a/STM32CubeIDE/Release/sources.mk
+++ b/STM32CubeIDE/Release/sources.mk
@@ -1,6 +1,6 @@
 ################################################################################
 # Automatically-generated file. Do not edit!
-# Toolchain: GNU Tools for STM32 (11.3.rel1)
+# Toolchain: GNU Tools for STM32 (12.3.rel1)
 ################################################################################
 
 ELF_SRCS :=