diff --git a/Core/Inc/main.h b/Core/Inc/main.h
index de7d845..3b630a2 100644
--- a/Core/Inc/main.h
+++ b/Core/Inc/main.h
@@ -63,8 +63,6 @@ void Error_Handler(void);
 #define LD3_GPIO_Port GPIOB
 #define USB_OverCurrent_Pin GPIO_PIN_5
 #define USB_OverCurrent_GPIO_Port GPIOG
-#define USB_PowerSwitchOn_Pin GPIO_PIN_6
-#define USB_PowerSwitchOn_GPIO_Port GPIOG
 #define STLK_RX_Pin GPIO_PIN_7
 #define STLK_RX_GPIO_Port GPIOG
 #define STLK_TX_Pin GPIO_PIN_8
diff --git a/Core/Inc/stm32l4xx_it.h b/Core/Inc/stm32l4xx_it.h
index ece519a..13dc2e9 100644
--- a/Core/Inc/stm32l4xx_it.h
+++ b/Core/Inc/stm32l4xx_it.h
@@ -53,6 +53,7 @@ void BusFault_Handler(void);
 void UsageFault_Handler(void);
 void DebugMon_Handler(void);
 void TIM6_DAC_IRQHandler(void);
+void LPUART1_IRQHandler(void);
 /* USER CODE BEGIN EFP */
 
 /* USER CODE END EFP */
diff --git a/Core/Src/main.c b/Core/Src/main.c
index 92a1acf..4ab0ea7 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -84,14 +84,15 @@ const osSemaphoreAttr_t si5351_attributes = {
 };
 /* USER CODE BEGIN PV */
 int leds_on = 1;
+uint8_t UART1_rxBuffer[12] = {0};
 /* USER CODE END PV */
 
 /* Private function prototypes -----------------------------------------------*/
 void SystemClock_Config(void);
 static void MX_GPIO_Init(void);
 static void MX_LPUART1_UART_Init(void);
-static void MX_I2C1_Init(void);
 static void MX_RTC_Init(void);
+static void MX_I2C1_Init(void);
 void StartDefaultTask(void *argument);
 void start_terminal_task(void *argument);
 void start_morse_task(void *argument);
@@ -116,6 +117,8 @@ int main(void)
 {
   /* USER CODE BEGIN 1 */
 	/* int status = 0; */
+
+
   /* USER CODE END 1 */
 
   /* MCU Configuration--------------------------------------------------------*/
@@ -137,8 +140,8 @@ int main(void)
   /* Initialize all configured peripherals */
   MX_GPIO_Init();
   MX_LPUART1_UART_Init();
-  MX_I2C1_Init();
   MX_RTC_Init();
+  MX_I2C1_Init();
   /* USER CODE BEGIN 2 */
 
   si5351_inst_t si5351_inst = 0;
@@ -179,7 +182,7 @@ int main(void)
   HAL_Delay(10000);
 #endif
 
-#if 1
+#if 0
   si5351_set_clk0(si5351_inst, 3550000);
   si5351_enable_output(si5351_inst,0);
 
@@ -213,7 +216,9 @@ int main(void)
 
 
 #endif
-  HAL_Delay(60000);
+  HAL_Delay(20000);
+
+#if 0
 	while (1) {
 
 		HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_SET);
@@ -244,6 +249,8 @@ int main(void)
 		HAL_ResumeTick();
 	}
 
+#endif
+
   /* World Youth ARDF Championship Romania 2022 */
   /* 80 m . RF power 3 W, QRG MOE-MO5: 3550 MHz, MO: 3600 MHz, Antenna 8m
    * 80 m Sprint pwr 1 W, TX 1-5: MOE-MO5: 3530 MHz, S: 3550 MHz, TX 1F-5F MOE-MO5: 3570 MHz
@@ -258,7 +265,7 @@ int main(void)
   // si5351_enable_output(si5351_inst,1);
   // HAL_Delay(1000);
 
-#if 0
+#if 1
   si5351_set_clk0(si5351_inst, 3550000);
 
   si5351_set_clk(si5351_inst, 3570000, 2, SI5351_PLLB);
@@ -294,16 +301,16 @@ int main(void)
 
   /* Create the thread(s) */
   /* creation of defaultTask */
-  defaultTaskHandle = osThreadNew(StartDefaultTask, NULL, &defaultTask_attributes);
+  //defaultTaskHandle = osThreadNew(StartDefaultTask, NULL, &defaultTask_attributes);
 
   /* creation of terminalTask */
   terminalTaskHandle = osThreadNew(start_terminal_task, NULL, &terminalTask_attributes);
 
   /* creation of morseTask */
-  morseTaskHandle = osThreadNew(start_morse_task, (void*) si5351_inst, &morseTask_attributes);
+  //morseTaskHandle = osThreadNew(start_morse_task, (void*) si5351_inst, &morseTask_attributes);
 
   /* creation of clk2Task */
-  clk2TaskHandle = osThreadNew(start_clk2_task, (void*) si5351_inst, &clk2Task_attributes);
+  //clk2TaskHandle = osThreadNew(start_clk2_task, (void*) si5351_inst, &clk2Task_attributes);
 
   /* USER CODE BEGIN RTOS_THREADS */
   /* add threads, ... */
@@ -561,7 +568,7 @@ static void MX_GPIO_Init(void)
   HAL_GPIO_WritePin(GPIOB, LD3_Pin|LD2_Pin, GPIO_PIN_RESET);
 
   /*Configure GPIO pin Output Level */
-  HAL_GPIO_WritePin(USB_PowerSwitchOn_GPIO_Port, USB_PowerSwitchOn_Pin, GPIO_PIN_RESET);
+  HAL_GPIO_WritePin(GPIOG, GPIO_PIN_6, GPIO_PIN_RESET);
 
   /*Configure GPIO pin Output Level */
   HAL_GPIO_WritePin(LD1_GPIO_Port, LD1_Pin, GPIO_PIN_RESET);
@@ -667,12 +674,12 @@ static void MX_GPIO_Init(void)
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(USB_OverCurrent_GPIO_Port, &GPIO_InitStruct);
 
-  /*Configure GPIO pin : USB_PowerSwitchOn_Pin */
-  GPIO_InitStruct.Pin = USB_PowerSwitchOn_Pin;
+  /*Configure GPIO pin : PG6 */
+  GPIO_InitStruct.Pin = GPIO_PIN_6;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
-  HAL_GPIO_Init(USB_PowerSwitchOn_GPIO_Port, &GPIO_InitStruct);
+  HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
 
   /*Configure GPIO pin : LD1_Pin */
   GPIO_InitStruct.Pin = LD1_Pin;
@@ -692,6 +699,12 @@ static void MX_GPIO_Init(void)
 }
 
 /* USER CODE BEGIN 4 */
+void HAL_UART_RxCpltCallback(UART_HandleTypeDef *hlpuart) {
+    HAL_UART_Transmit(&hlpuart1, UART1_rxBuffer, 1, 100);
+    HAL_UART_Receive_IT(&hlpuart1, UART1_rxBuffer, 1);
+}
+
+
 /**
   * @brief  Retargets the C library printf function to the USART.
   * @param  None
@@ -893,9 +906,11 @@ void start_terminal_task(void *argument)
 	HAL_StatusTypeDef status;
 	RTC_TimeTypeDef time;
 	RTC_DateTypeDef date;
+	uint8_t LPUART1_rxBuffer[100];
 
 	/* Infinite loop */
 	for(;;) {
+		HAL_UART_Receive_IT(&hlpuart1, UART1_rxBuffer, 1);
 
 		status = HAL_RTC_GetTime(&hrtc, &time, RTC_FORMAT_BIN);
 		if (status != HAL_OK)
@@ -985,7 +1000,7 @@ void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
   /* USER CODE BEGIN Callback 0 */
 
   /* USER CODE END Callback 0 */
-  if (htim->Instance == TIM6) {
+if (htim->Instance == TIM6) {
     HAL_IncTick();
   }
   /* USER CODE BEGIN Callback 1 */
diff --git a/Core/Src/stm32l4xx_hal_msp.c b/Core/Src/stm32l4xx_hal_msp.c
index 13c3405..e163b55 100644
--- a/Core/Src/stm32l4xx_hal_msp.c
+++ b/Core/Src/stm32l4xx_hal_msp.c
@@ -196,6 +196,9 @@ void HAL_UART_MspInit(UART_HandleTypeDef* huart)
     GPIO_InitStruct.Alternate = GPIO_AF8_LPUART1;
     HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
 
+    /* LPUART1 interrupt Init */
+    HAL_NVIC_SetPriority(LPUART1_IRQn, 5, 0);
+    HAL_NVIC_EnableIRQ(LPUART1_IRQn);
   /* USER CODE BEGIN LPUART1_MspInit 1 */
 
   /* USER CODE END LPUART1_MspInit 1 */
@@ -225,6 +228,8 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
     */
     HAL_GPIO_DeInit(GPIOG, STLK_RX_Pin|STLK_TX_Pin);
 
+    /* LPUART1 interrupt DeInit */
+    HAL_NVIC_DisableIRQ(LPUART1_IRQn);
   /* USER CODE BEGIN LPUART1_MspDeInit 1 */
 
   /* USER CODE END LPUART1_MspDeInit 1 */
diff --git a/Core/Src/stm32l4xx_it.c b/Core/Src/stm32l4xx_it.c
index d371ded..62f399d 100644
--- a/Core/Src/stm32l4xx_it.c
+++ b/Core/Src/stm32l4xx_it.c
@@ -55,6 +55,7 @@
 /* USER CODE END 0 */
 
 /* External variables --------------------------------------------------------*/
+extern UART_HandleTypeDef hlpuart1;
 extern TIM_HandleTypeDef htim6;
 
 /* USER CODE BEGIN EV */
@@ -173,6 +174,20 @@ void TIM6_DAC_IRQHandler(void)
   /* USER CODE END TIM6_DAC_IRQn 1 */
 }
 
+/**
+  * @brief This function handles LPUART1 global interrupt.
+  */
+void LPUART1_IRQHandler(void)
+{
+  /* USER CODE BEGIN LPUART1_IRQn 0 */
+
+  /* USER CODE END LPUART1_IRQn 0 */
+  HAL_UART_IRQHandler(&hlpuart1);
+  /* USER CODE BEGIN LPUART1_IRQn 1 */
+
+  /* USER CODE END LPUART1_IRQn 1 */
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */
diff --git a/stm32l4a6zg-f0x.at1.ioc b/stm32l4a6zg-f0x.at1.ioc
index e7d2aa2..e42a43f 100644
--- a/stm32l4a6zg-f0x.at1.ioc
+++ b/stm32l4a6zg-f0x.at1.ioc
@@ -82,61 +82,61 @@ Mcu.Pin32=PA7
 Mcu.Pin33=PC4
 Mcu.Pin34=PC5
 Mcu.Pin35=PB0
-Mcu.Pin36=PB1
-Mcu.Pin37=PB2
-Mcu.Pin38=PF11
-Mcu.Pin39=PF12
+Mcu.Pin36=PB2
+Mcu.Pin37=PF11
+Mcu.Pin38=PF12
+Mcu.Pin39=PF13
 Mcu.Pin4=PE6
-Mcu.Pin40=PF13
-Mcu.Pin41=PF14
-Mcu.Pin42=PF15
-Mcu.Pin43=PG0
-Mcu.Pin44=PG1
-Mcu.Pin45=PE7
-Mcu.Pin46=PE8
-Mcu.Pin47=PE9
-Mcu.Pin48=PE10
-Mcu.Pin49=PE11
+Mcu.Pin40=PF14
+Mcu.Pin41=PF15
+Mcu.Pin42=PG0
+Mcu.Pin43=PG1
+Mcu.Pin44=PE7
+Mcu.Pin45=PE8
+Mcu.Pin46=PE9
+Mcu.Pin47=PE10
+Mcu.Pin48=PE11
+Mcu.Pin49=PE12
 Mcu.Pin5=PC13
-Mcu.Pin50=PE12
-Mcu.Pin51=PE13
-Mcu.Pin52=PE14
-Mcu.Pin53=PE15
-Mcu.Pin54=PB10
-Mcu.Pin55=PB11
-Mcu.Pin56=PB12
-Mcu.Pin57=PB13
-Mcu.Pin58=PB14
-Mcu.Pin59=PB15
+Mcu.Pin50=PE13
+Mcu.Pin51=PE14
+Mcu.Pin52=PE15
+Mcu.Pin53=PB10
+Mcu.Pin54=PB11
+Mcu.Pin55=PB12
+Mcu.Pin56=PB13
+Mcu.Pin57=PB14
+Mcu.Pin58=PB15
+Mcu.Pin59=PD8
 Mcu.Pin6=PC14-OSC32_IN (PC14)
-Mcu.Pin60=PD8
-Mcu.Pin61=PD9
-Mcu.Pin62=PD10
-Mcu.Pin63=PD11
-Mcu.Pin64=PD12
-Mcu.Pin65=PD13
-Mcu.Pin66=PD14
-Mcu.Pin67=PD15
-Mcu.Pin68=PG2
-Mcu.Pin69=PG3
+Mcu.Pin60=PD9
+Mcu.Pin61=PD10
+Mcu.Pin62=PD11
+Mcu.Pin63=PD12
+Mcu.Pin64=PD13
+Mcu.Pin65=PD14
+Mcu.Pin66=PD15
+Mcu.Pin67=PG2
+Mcu.Pin68=PG3
+Mcu.Pin69=PG4
 Mcu.Pin7=PC15-OSC32_OUT (PC15)
-Mcu.Pin70=PG4
-Mcu.Pin71=PG5
-Mcu.Pin72=PG6
-Mcu.Pin73=PG7
-Mcu.Pin74=PG8
-Mcu.Pin75=PC6
-Mcu.Pin76=PC7
-Mcu.Pin77=PC8
-Mcu.Pin78=PC9
-Mcu.Pin79=PA8
+Mcu.Pin70=PG5
+Mcu.Pin71=PG6
+Mcu.Pin72=PG7
+Mcu.Pin73=PG8
+Mcu.Pin74=PC6
+Mcu.Pin75=PC7
+Mcu.Pin76=PC8
+Mcu.Pin77=PC9
+Mcu.Pin78=PA8
+Mcu.Pin79=PA9
 Mcu.Pin8=PF0
-Mcu.Pin80=PA9
-Mcu.Pin81=PA10
-Mcu.Pin82=PA11
-Mcu.Pin83=PA12
-Mcu.Pin84=PA13 (JTMS/SWDIO)
-Mcu.Pin85=PA14 (JTCK/SWCLK)
+Mcu.Pin80=PA10
+Mcu.Pin81=PA11
+Mcu.Pin82=PA12
+Mcu.Pin83=PA13 (JTMS/SWDIO)
+Mcu.Pin84=PA14 (JTCK/SWCLK)
+Mcu.Pin85=PA15 (JTDI)
 Mcu.Pin86=PD0
 Mcu.Pin87=PD1
 Mcu.Pin88=PD3
@@ -162,6 +162,7 @@ NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:true\:false\:true
 NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:true\:false\:true
 NVIC.ForceEnableDMAVector=true
 NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:true\:false\:true
+NVIC.LPUART1_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true\:true
 NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true\:false\:true\:false\:true
 NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:true\:false\:true
 NVIC.PendSV_IRQn=true\:15\:0\:false\:false\:false\:true\:true\:false\:true
@@ -199,6 +200,7 @@ PA14\ (JTCK/SWCLK).GPIO_Label=TCK
 PA14\ (JTCK/SWCLK).Locked=true
 PA14\ (JTCK/SWCLK).Mode=Trace_Asynchronous_SW
 PA14\ (JTCK/SWCLK).Signal=SYS_JTCK-SWCLK
+PA15\ (JTDI).Signal=GPIO_Analog
 PA2.Mode=Clock-out-LSCO
 PA2.Signal=RCC_LSCO
 PA3.Signal=GPIO_Analog
@@ -215,7 +217,6 @@ PA9.GPIO_Label=USB_VBUS
 PA9.Locked=true
 PA9.Signal=USB_OTG_FS_VBUS
 PB0.Signal=GPIO_Analog
-PB1.Signal=GPIO_Analog
 PB10.Signal=GPIO_Analog
 PB11.Signal=GPIO_Analog
 PB12.Signal=GPIO_Analog
@@ -370,8 +371,6 @@ PG5.GPIOParameters=GPIO_Label
 PG5.GPIO_Label=USB_OverCurrent [STMPS2151STR_FAULT]
 PG5.Locked=true
 PG5.Signal=GPIO_Input
-PG6.GPIOParameters=GPIO_Label
-PG6.GPIO_Label=USB_PowerSwitchOn [STMPS2151STR_EN]
 PG6.Locked=true
 PG6.Signal=GPIO_Output
 PG7.GPIOParameters=GPIO_Speed,GPIO_Label
@@ -419,7 +418,7 @@ ProjectManager.StackSize=0x400
 ProjectManager.TargetToolchain=STM32CubeIDE
 ProjectManager.ToolChainLocation=
 ProjectManager.UnderRoot=true
-ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_LPUART1_UART_Init-LPUART1-false-HAL-true,4-MX_I2C1_Init-I2C1-false-HAL-true,5-MX_RTC_Init-RTC-false-HAL-true
+ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_LPUART1_UART_Init-LPUART1-false-HAL-true,4-MX_RTC_Init-RTC-false-HAL-true,5-MX_I2C1_Init-I2C1-false-HAL-true
 RCC.ADCFreq_Value=48000000
 RCC.AHBCLKDivider=RCC_SYSCLK_DIV8
 RCC.AHBFreq_Value=5916666.666666667
@@ -498,3 +497,4 @@ VP_SYS_VS_tim6.Mode=TIM6
 VP_SYS_VS_tim6.Signal=SYS_VS_tim6
 board=NUCLEO-L4A6ZG
 boardIOC=true
+isbadioc=false