diff --git a/nucleo-wb55-zigbee/Core/Inc/main.h b/nucleo-wb55-zigbee/Core/Inc/main.h
index 31463dc..aa1c9c6 100644
--- a/nucleo-wb55-zigbee/Core/Inc/main.h
+++ b/nucleo-wb55-zigbee/Core/Inc/main.h
@@ -64,22 +64,12 @@ void Error_Handler(void);
 #define LED_GREEN_GPIO_Port GPIOB
 #define LED_RED_Pin GPIO_PIN_1
 #define LED_RED_GPIO_Port GPIOB
-#define JTMS_Pin GPIO_PIN_13
-#define JTMS_GPIO_Port GPIOA
-#define JTCK_Pin GPIO_PIN_14
-#define JTCK_GPIO_Port GPIOA
 #define B2_Pin GPIO_PIN_0
 #define B2_GPIO_Port GPIOD
 #define B3_Pin GPIO_PIN_1
 #define B3_GPIO_Port GPIOD
-#define JTDO_Pin GPIO_PIN_3
-#define JTDO_GPIO_Port GPIOB
 #define LED_BLUE_Pin GPIO_PIN_5
 #define LED_BLUE_GPIO_Port GPIOB
-#define STLINK_RX_Pin GPIO_PIN_6
-#define STLINK_RX_GPIO_Port GPIOB
-#define STLINK_TX_Pin GPIO_PIN_7
-#define STLINK_TX_GPIO_Port GPIOB
 /* USER CODE BEGIN Private defines */
 
 /* USER CODE END Private defines */
diff --git a/nucleo-wb55-zigbee/Core/Src/main.c b/nucleo-wb55-zigbee/Core/Src/main.c
index a80c017..479141d 100644
--- a/nucleo-wb55-zigbee/Core/Src/main.c
+++ b/nucleo-wb55-zigbee/Core/Src/main.c
@@ -115,20 +115,24 @@ void SystemClock_Config(void)
   RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
   RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
 
+  /** Configure LSE Drive Capability
+  */
+  HAL_PWR_EnableBkUpAccess();
+  __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW);
   /** Configure the main internal regulator output voltage
   */
   __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
   /** Initializes the RCC Oscillators according to the specified parameters
   * in the RCC_OscInitTypeDef structure.
   */
-  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSI1
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSE
                               |RCC_OSCILLATORTYPE_MSI;
+  RCC_OscInitStruct.LSEState = RCC_LSE_ON;
   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
   RCC_OscInitStruct.MSIState = RCC_MSI_ON;
   RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
   RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;
   RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_10;
-  RCC_OscInitStruct.LSIState = RCC_LSI_ON;
   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
   {
@@ -153,7 +157,7 @@ void SystemClock_Config(void)
   /** Initializes the peripherals clocks
   */
   PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_SMPS|RCC_PERIPHCLK_RTC;
-  PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
+  PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
   PeriphClkInitStruct.SmpsClockSelection = RCC_SMPSCLKSOURCE_HSI;
   PeriphClkInitStruct.SmpsDivSelection = RCC_SMPSCLKDIV_RANGE0;
   if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
@@ -212,7 +216,6 @@ static void MX_GPIO_Init(void)
   /* GPIO Ports Clock Enable */
   __HAL_RCC_GPIOC_CLK_ENABLE();
   __HAL_RCC_GPIOB_CLK_ENABLE();
-  __HAL_RCC_GPIOA_CLK_ENABLE();
   __HAL_RCC_GPIOD_CLK_ENABLE();
 
   /*Configure GPIO pin Output Level */
@@ -231,28 +234,12 @@ static void MX_GPIO_Init(void)
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
-  /*Configure GPIO pins : PA11 PA12 */
-  GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12;
-  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
-  GPIO_InitStruct.Pull = GPIO_NOPULL;
-  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
-  GPIO_InitStruct.Alternate = GPIO_AF10_USB;
-  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
-
   /*Configure GPIO pins : B2_Pin B3_Pin */
   GPIO_InitStruct.Pin = B2_Pin|B3_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
 
-  /*Configure GPIO pins : STLINK_RX_Pin STLINK_TX_Pin */
-  GPIO_InitStruct.Pin = STLINK_RX_Pin|STLINK_TX_Pin;
-  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
-  GPIO_InitStruct.Pull = GPIO_NOPULL;
-  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
-  GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
-  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
-
 }
 
 /* USER CODE BEGIN 4 */
diff --git a/nucleo-wb55-zigbee/nucleo-wb55-zigbee.ioc b/nucleo-wb55-zigbee/nucleo-wb55-zigbee.ioc
index e424189..d188d63 100644
--- a/nucleo-wb55-zigbee/nucleo-wb55-zigbee.ioc
+++ b/nucleo-wb55-zigbee/nucleo-wb55-zigbee.ioc
@@ -1,22 +1,37 @@
 #MicroXplorer Configuration settings - do not modify
 Mcu.Family=STM32WB
+VP_RTC_VS_RTC_Activate.Signal=RTC_VS_RTC_Activate
 ProjectManager.MainLocation=Core/Src
+PCC.Ble.Mode=NOT_SELECTED
+PC15-OSC32_OUT.Mode=LSE-External-Oscillator
+RCC.PLLQoutputFreq_Value=128000000
 RCC.USART1Freq_Value=32000000
+ProjectManager.ProjectFileName=nucleo-wb55-zigbee.ioc
 RCC.SAI1Freq_Value=128000000
 RCC.CortexFreq_Value=32000000
 ProjectManager.KeepUserCode=true
 Mcu.UserName=STM32WB55RGVx
+Mcu.PinsNb=10
+ProjectManager.NoMain=false
 RCC.RFWKPFreq_Value=976.5625
 RCC.SMPSCLockSelectionVirtualVirtual=RCC_SMPSCLKSOURCE_HSI
+RCC.HCLK3Freq_Value=32000000
 RCC.PLLSAI1RoutputFreq_Value=128000000
-PA14.GPIO_Label=JTCK
-ProjectManager.functionlistsort=1-MX_GPIO_Init-GPIO-false-HAL-true,2-SystemClock_Config-RCC-false-HAL-false
+ProjectManager.functionlistsort=1-MX_GPIO_Init-GPIO-false-HAL-true,2-SystemClock_Config-RCC-false-HAL-false,3-MX_RTC_Init-RTC-false-HAL-true
+PC4.Signal=GPIO_Input
 PD0.GPIO_Label=B2 [Push Button]
 VP_RTC_VS_RTC_Activate.Mode=RTC_Enabled
+PD1.Signal=GPIO_Input
+RCC.RTCFreq_Value=32768
+ProjectManager.DefaultFWLocation=true
 PB0.GPIO_Label=LED_GREEN
-PB6.GPIO_Label=STLINK_RX
 PD0.Locked=true
+ProjectManager.DeletePrevious=true
+RCC.HCLK2Freq_Value=32000000
+PC14-OSC32_IN.Signal=RCC_OSC32_IN
+boardIOC=true
 PinOutPanel.RotationAngle=0
+RCC.FamilyName=M
 RCC.MCO1PinFreq_Value=32000000
 ProjectManager.StackSize=0x400
 PB5.GPIOParameters=GPIO_Label
@@ -27,170 +42,117 @@ NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false\:false
 Mcu.IP2=RTC
 Mcu.IP3=SYS
 Mcu.IP0=NVIC
-PA12.Locked=true
 Mcu.IP1=RCC
-PA12.Signal=USB_DP
 Mcu.UserConstants=
 RCC.VCOSAI1OutputFreq_Value=256000000
+ProjectManager.TargetToolchain=STM32CubeIDE
 Mcu.ThirdPartyNb=0
 RCC.HCLKFreq_Value=32000000
 Mcu.IPNb=4
+RCC.HCLKRFFreq_Value=16000000
 ProjectManager.PreviousToolchain=
 RCC.APB2TimFreq_Value=32000000
 PCC.Ble.PowerLevel=Min
-PB6.Signal=USART1_TX
-Mcu.Pin6=PB0
-PD0.Signal=GPIO_Input
-Mcu.Pin7=PB1
-Mcu.Pin8=PA11
-Mcu.Pin9=PA12
-OSC_OUT.Signal=RCC_OSC_OUT
-RCC.AHBFreq_Value=32000000
-Mcu.Pin0=PC13
-Mcu.Pin1=PC14-OSC32_IN
-Mcu.Pin2=PC15-OSC32_OUT
-Mcu.Pin3=PC4
-Mcu.Pin4=OSC_OUT
-Mcu.Pin5=OSC_IN
-ProjectManager.ProjectBuild=false
-RCC.HSE_VALUE=32000000
-NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false
-RCC.FCLK2Freq_Value=32000000
-NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:false
-NVIC.SysTick_IRQn=true\:0\:0\:false\:false\:true\:false\:true
-PD1.GPIOParameters=GPIO_Label
-PD1.GPIO_Label=B3 [Push Button]
-ProjectManager.FirmwarePackage=STM32Cube FW_WB V1.11.1
-MxDb.Version=DB.6.0.21
-PB0.GPIOParameters=GPIO_Label
-ProjectManager.BackupPrevious=false
-RCC.VCOInputFreq_Value=32000000
-PC4.GPIO_Label=B1 [Push Button]
-PB1.GPIO_Label=LED_RED
-File.Version=6
-PB3.GPIOParameters=GPIO_Label
-PB7.Signal=USART1_RX
-RCC.PLLRCLKFreq_Value=128000000
-PB6.Locked=true
-NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false\:false
-PB6.GPIOParameters=GPIO_Label
-ProjectManager.HalAssertFull=false
-PB0.Locked=true
-ProjectManager.ProjectName=nucleo-wb55-zigbee
-RCC.APB3Freq_Value=16000000
-PA13.GPIOParameters=GPIO_Label
-PB7.GPIO_Label=STLINK_TX
-Mcu.Package=VFQFPN68
-PB1.Signal=GPIO_Output
-PA14.Locked=true
-ProjectManager.ToolChainLocation=
-RCC.LSI_VALUE=32000
-VP_SYS_VS_Systick.Signal=SYS_VS_Systick
-RCC.LSCOPinFreq_Value=32000
-PB5.GPIO_Label=LED_BLUE
-RCC.PLLPoutputFreq_Value=128000000
-RCC.APB1TimFreq_Value=32000000
-NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false
-PC4.Locked=true
-RCC.LPUART1Freq_Value=32000000
-RCC.SMPSDivider=1
-ProjectManager.CustomerFirmwarePackage=
-PC4.GPIOParameters=GPIO_Label
-PC14-OSC32_IN.Locked=true
-RCC.MSIClockRange=RCC_MSIRANGE_10
-RCC.HSI48_VALUE=48000000
-PB3.Locked=true
-PB3.GPIO_Label=JTDO
-VP_RTC_VS_RTC_Activate.Signal=RTC_VS_RTC_Activate
-PCC.Ble.Mode=NOT_SELECTED
-RCC.PLLQoutputFreq_Value=128000000
-ProjectManager.ProjectFileName=nucleo-wb55-zigbee.ioc
-Mcu.PinsNb=20
-ProjectManager.NoMain=false
-PC13.Locked=true
-RCC.HCLK3Freq_Value=32000000
-PC13.Signal=SYS_WKUP2
-PC4.Signal=GPIO_Input
-PD1.Signal=GPIO_Input
-ProjectManager.DefaultFWLocation=true
-OSC_IN.Locked=true
-ProjectManager.DeletePrevious=true
-RCC.HCLK2Freq_Value=32000000
-PC14-OSC32_IN.Signal=RCC_OSC32_IN
-boardIOC=true
-RCC.FamilyName=M
-PA13.Signal=SYS_JTMS-SWDIO
-PA11.Locked=true
-PC15-OSC32_OUT.Locked=true
-ProjectManager.TargetToolchain=STM32CubeIDE
-PB7.GPIOParameters=GPIO_Label
-RCC.HCLKRFFreq_Value=16000000
 PB5.Locked=true
+PD0.Signal=GPIO_Input
+Mcu.Pin6=PD1
+Mcu.Pin7=PB5
 ProjectManager.RegisterCallBack=
-OSC_IN.Signal=RCC_OSC_IN
+Mcu.Pin8=VP_RTC_VS_RTC_Activate
 RCC.USBFreq_Value=128000000
-RCC.LSE_VALUE=32768
+Mcu.Pin9=VP_SYS_VS_Systick
 PC15-OSC32_OUT.Signal=RCC_OSC32_OUT
+RCC.AHBFreq_Value=32000000
 RCC.PLLSAI1PoutputFreq_Value=128000000
+Mcu.Pin0=PC14-OSC32_IN
 PB1.Locked=true
+Mcu.Pin1=PC15-OSC32_OUT
+Mcu.Pin2=PC4
+Mcu.Pin3=PB0
+Mcu.Pin4=PB1
+Mcu.Pin5=PD0
 RCC.SMPSCLockSelectionVirtual=RCC_SMPSCLKSOURCE_HSI
+ProjectManager.ProjectBuild=false
+RCC.HSE_VALUE=32000000
+NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false
+RCC.FCLK2Freq_Value=32000000
+NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:false
 board=P-NUCLEO-WB55-Nucleo
 RCC.Cortex2Freq_Value=32000000
 RCC.VCOOutputFreq_Value=256000000
+PD1.GPIOParameters=GPIO_Label
+NVIC.SysTick_IRQn=true\:0\:0\:false\:false\:true\:false\:true
+RCC.RTCClockSelection=RCC_RTCCLKSOURCE_LSE
 ProjectManager.LastFirmware=true
 RCC.SMPS1Freq_Value=16000000
+PD1.GPIO_Label=B3 [Push Button]
+ProjectManager.FirmwarePackage=STM32Cube FW_WB V1.11.1
+MxDb.Version=DB.6.0.21
+PB0.GPIOParameters=GPIO_Label
 RCC.APB2Freq_Value=32000000
+ProjectManager.BackupPrevious=false
 MxCube.Version=6.2.1
+PC14-OSC32_IN.Mode=LSE-External-Oscillator
+RCC.VCOInputFreq_Value=32000000
 PCC.Ble.DataLength=6
+PC4.GPIO_Label=B1 [Push Button]
 RCC.I2C1Freq_Value=32000000
 RCC.RNGFreq_Value=32000
+RCC.LCDFreq_Value=32768
+PB1.GPIO_Label=LED_RED
 RCC.PLLSAI1QoutputFreq_Value=128000000
 RCC.ADCFreq_Value=128000000
+File.Version=6
 VP_SYS_VS_Systick.Mode=SysTick
 NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false
-OSC_OUT.Locked=true
+RCC.PLLRCLKFreq_Value=128000000
+NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false\:false
 ProjectManager.FreePins=false
-RCC.IPParameters=ADCFreq_Value,AHBFreq_Value,APB1Freq_Value,APB1TimFreq_Value,APB2Freq_Value,APB2TimFreq_Value,APB3Freq_Value,Cortex2Freq_Value,CortexFreq_Value,FCLK2Freq_Value,FCLKCortexFreq_Value,FamilyName,HCLK2Freq_Value,HCLK3Freq_Value,HCLKFreq_Value,HCLKRFFreq_Value,HSE_VALUE,HSI48_VALUE,HSI_VALUE,I2C1Freq_Value,I2C3Freq_Value,LPTIM1Freq_Value,LPTIM2Freq_Value,LPUART1Freq_Value,LSCOPinFreq_Value,LSE_VALUE,LSI_VALUE,MCO1PinFreq_Value,MSIClockRange,PLLPoutputFreq_Value,PLLQoutputFreq_Value,PLLRCLKFreq_Value,PLLSAI1PoutputFreq_Value,PLLSAI1QoutputFreq_Value,PLLSAI1RoutputFreq_Value,PWRFreq_Value,RFWKPFreq_Value,RNGFreq_Value,SAI1Freq_Value,SMPS1Freq_Value,SMPSCLockSelectionVirtual,SMPSCLockSelectionVirtualVirtual,SMPSDivider,SYSCLKFreq_VALUE,USART1Freq_Value,USBFreq_Value,VCOInputFreq_Value,VCOOutputFreq_Value,VCOSAI1OutputFreq_Value
+RCC.IPParameters=ADCFreq_Value,AHBFreq_Value,APB1Freq_Value,APB1TimFreq_Value,APB2Freq_Value,APB2TimFreq_Value,APB3Freq_Value,Cortex2Freq_Value,CortexFreq_Value,FCLK2Freq_Value,FCLKCortexFreq_Value,FamilyName,HCLK2Freq_Value,HCLK3Freq_Value,HCLKFreq_Value,HCLKRFFreq_Value,HSE_VALUE,HSI48_VALUE,HSI_VALUE,I2C1Freq_Value,I2C3Freq_Value,LCDFreq_Value,LPTIM1Freq_Value,LPTIM2Freq_Value,LPUART1Freq_Value,LSCOPinFreq_Value,LSI_VALUE,MCO1PinFreq_Value,MSIClockRange,PLLPoutputFreq_Value,PLLQoutputFreq_Value,PLLRCLKFreq_Value,PLLSAI1PoutputFreq_Value,PLLSAI1QoutputFreq_Value,PLLSAI1RoutputFreq_Value,PWRFreq_Value,RFWKPFreq_Value,RNGFreq_Value,RTCClockSelection,RTCFreq_Value,SAI1Freq_Value,SMPS1Freq_Value,SMPSCLockSelectionVirtual,SMPSCLockSelectionVirtualVirtual,SMPSDivider,SYSCLKFreq_VALUE,USART1Freq_Value,USBFreq_Value,VCOInputFreq_Value,VCOOutputFreq_Value,VCOSAI1OutputFreq_Value
 ProjectManager.AskForMigrate=true
 Mcu.Name=STM32WB55RGVx
 RCC.LPTIM2Freq_Value=32000000
-PA13.GPIO_Label=JTMS
+ProjectManager.HalAssertFull=false
+PB0.Locked=true
+ProjectManager.ProjectName=nucleo-wb55-zigbee
 ProjectManager.UnderRoot=true
+RCC.APB3Freq_Value=16000000
 ProjectManager.CoupleFile=false
-PB3.Signal=SYS_JTDO-SWO
 RCC.SYSCLKFreq_VALUE=32000000
+Mcu.Package=VFQFPN68
 PB5.Signal=GPIO_Output
+PB1.Signal=GPIO_Output
 PCC.Ble.ConnectionInterval=1000.0
 NVIC.ForceEnableDMAVector=true
 KeepUserPlacement=false
-PA14.GPIOParameters=GPIO_Label
 NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true\:false\:false
-PA13.Locked=true
 ProjectManager.CompilerOptimize=6
-PA11.Signal=USB_DM
-PA14.Signal=SYS_JTCK-SWCLK
+ProjectManager.ToolChainLocation=
+RCC.LSI_VALUE=32000
+VP_SYS_VS_Systick.Signal=SYS_VS_Systick
+RCC.LSCOPinFreq_Value=32000
 ProjectManager.HeapSize=0x200
-Mcu.Pin15=PB5
 NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false
-Mcu.Pin16=PB6
-Mcu.Pin13=PD1
-Mcu.Pin14=PB3
-Mcu.Pin19=VP_SYS_VS_Systick
 ProjectManager.ComputerToolchain=false
-Mcu.Pin17=PB7
 RCC.HSI_VALUE=16000000
-Mcu.Pin18=VP_RTC_VS_RTC_Activate
 NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
-Mcu.Pin11=PA14
-Mcu.Pin12=PD0
+PB5.GPIO_Label=LED_BLUE
 PD0.GPIOParameters=GPIO_Label
-Mcu.Pin10=PA13
-PB7.Locked=true
+RCC.PLLPoutputFreq_Value=128000000
+RCC.APB1TimFreq_Value=32000000
+NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false
 RCC.PWRFreq_Value=32000000
+PC4.Locked=true
+RCC.LPUART1Freq_Value=32000000
 RCC.APB1Freq_Value=32000000
 PD1.Locked=true
+RCC.SMPSDivider=1
 PB0.Signal=GPIO_Output
+ProjectManager.CustomerFirmwarePackage=
+PC4.GPIOParameters=GPIO_Label
 ProjectManager.DeviceId=STM32WB55RGVx
+RCC.MSIClockRange=RCC_MSIRANGE_10
 ProjectManager.LibraryCopy=1
+RCC.HSI48_VALUE=48000000
 PB1.GPIOParameters=GPIO_Label
 isbadioc=false