diff --git a/lib/stm32wba/BLE_TransparentMode/STM32_WPAN/Target/linklayer_plat.c b/lib/stm32wba/BLE_TransparentMode/STM32_WPAN/Target/linklayer_plat.c
index 138487b18..f51b04414 100644
--- a/lib/stm32wba/BLE_TransparentMode/STM32_WPAN/Target/linklayer_plat.c
+++ b/lib/stm32wba/BLE_TransparentMode/STM32_WPAN/Target/linklayer_plat.c
@@ -4,39 +4,13 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-
-
-/* USER CODE END Header */
-
-#ifndef __ZEPHYR__
-#include "stm32wbaxx_hal.h"
-#include "stm32wbaxx_hal_conf.h"
-#include "stm32wbaxx_ll_rcc.h"
-
-#include "app_common.h"
-#include "app_conf.h"
-#include "linklayer_plat.h"
 #include "scm.h"
-#include "log_module.h"
-#if (USE_TEMPERATURE_BASED_RADIO_CALIBRATION == 1)
-#include "adc_ctrl.h"
-#endif /* (USE_TEMPERATURE_BASED_RADIO_CALIBRATION == 1) */
-
-#if (CFG_LPM_LEVEL != 0)
-#include "stm32_lpm.h"
-#endif /* (CFG_LPM_LEVEL != 0) */
-/* USER CODE BEGIN Includes */
 
-#else
-#include "scm.h"
-#endif
 #define max(a,b) ((a) > (b) ? a : b)
 
 /* 2.4GHz RADIO ISR callbacks */
 typedef void (*radio_isr_cb_t) (void);
 
-
-
 /* Radio critical sections */
 static uint32_t primask_bit = 0;
 volatile int32_t irq_counter;
@@ -66,33 +40,6 @@ void LINKLAYER_PLAT_ClockInit(void)
 	__HAL_RCC_RADIO_CLK_ENABLE();
 }
 
-#ifndef __ZEPHYR__
-/**
-  * @brief  Link Layer active waiting loop.
-  * @param  delay: delay in us
-  * @retval None
-  */
-void LINKLAYER_PLAT_DelayUs(uint32_t delay)
-{
-__IO register uint32_t Delay = delay * (SystemCoreClock / 1000000U);
-	do
-	{
-		__NOP();
-	}
-	while (Delay --);
-}
-
-/**
-  * @brief  Link Layer assertion API
-  * @param  condition: conditional statement to be checked.
-  * @retval None
-  */
-void LINKLAYER_PLAT_Assert(uint8_t condition)
-{
-  assert_param(condition);
-}
-#endif
-
 /**
   * @brief  Enable/disable the Link Layer active clock (baseband clock).
   * @param  enable: boolean value to enable (1) or disable (0) the clock.
@@ -125,102 +72,6 @@ void LINKLAYER_PLAT_AclkCtrl(uint8_t enable)
   }
 }
 
-#ifndef __ZEPHYR__
-/**
-  * @brief  Link Layer RNG request.
-  * @param  ptr_rnd: pointer to the variable that hosts the number.
-  * @param  len: number of byte of anthropy to get.
-  * @retval None
-  */
-void LINKLAYER_PLAT_GetRNG(uint8_t *ptr_rnd, uint32_t len)
-{
-  uint32_t nb_remaining_rng = len;
-  uint32_t generated_rng;
-
-  /* Get the requested RNGs (4 bytes by 4bytes) */
-  while(nb_remaining_rng >= 4)
-  {
-    generated_rng = 0;
-    HW_RNG_Get(1, &generated_rng);
-    memcpy((ptr_rnd+(len-nb_remaining_rng)), &generated_rng, 4);
-    nb_remaining_rng -=4;
-  }
-
-  /* Get the remaining number of RNGs */
-  if(nb_remaining_rng>0){
-    generated_rng = 0;
-    HW_RNG_Get(1, &generated_rng);
-    memcpy((ptr_rnd+(len-nb_remaining_rng)), &generated_rng, nb_remaining_rng);
-  }
-}
-
-/**
-  * @brief  Initialize Link Layer radio high priority interrupt.
-  * @param  intr_cb: function pointer to assign for the radio high priority ISR routine.
-  * @retval None
-  */
-void LINKLAYER_PLAT_SetupRadioIT(void (*intr_cb)())
-{
-  radio_callback = intr_cb;
-  HAL_NVIC_SetPriority((IRQn_Type) RADIO_INTR_NUM, RADIO_INTR_PRIO_HIGH, 0);
-  HAL_NVIC_EnableIRQ((IRQn_Type) RADIO_INTR_NUM);
-}
-
-/**
-  * @brief  Initialize Link Layer SW low priority interrupt.
-  * @param  intr_cb: function pointer to assign for the SW low priority ISR routine.
-  * @retval None
-  */
-void LINKLAYER_PLAT_SetupSwLowIT(void (*intr_cb)())
-{
-  low_isr_callback = intr_cb;
-
-  HAL_NVIC_SetPriority((IRQn_Type) RADIO_SW_LOW_INTR_NUM, RADIO_SW_LOW_INTR_PRIO, 0);
-  HAL_NVIC_EnableIRQ((IRQn_Type) RADIO_SW_LOW_INTR_NUM);
-}
-
-/**
-  * @brief  Trigger the link layer SW low interrupt.
-  * @param  None
-  * @retval None
-  */
-void LINKLAYER_PLAT_TriggerSwLowIT(uint8_t priority)
-{
-  uint8_t low_isr_priority = RADIO_INTR_PRIO_LOW;
-
-  /* Check if a SW low interrupt as already been raised.
-   * Nested call far radio low isr are not supported
-   **/
-
-  if(NVIC_GetActive(RADIO_SW_LOW_INTR_NUM) == 0)
-  {
-    /* No nested SW low ISR, default behavior */
-
-    if(priority == 0)
-    {
-      low_isr_priority = RADIO_SW_LOW_INTR_PRIO;
-    }
-
-    HAL_NVIC_SetPriority((IRQn_Type) RADIO_SW_LOW_INTR_NUM, low_isr_priority, 0);
-  }
-  else
-  {
-    /* Nested call detected */
-    /* No change for SW radio low interrupt priority for the moment */
-
-    if(priority != 0)
-    {
-      /* At the end of current SW radio low ISR, this pending SW low interrupt
-       * will run with RADIO_INTR_PRIO_LOW priority
-       **/
-      radio_sw_low_isr_is_running_high_prio = 1;
-    }
-  }
-
-  HAL_NVIC_SetPendingIRQ((IRQn_Type) RADIO_SW_LOW_INTR_NUM);
-}
-#endif
-
 /**
   * @brief  Enable interrupts.
   * @param  None
@@ -253,104 +104,6 @@ void LINKLAYER_PLAT_DisableIRQ(void)
   irq_counter ++;
 }
 
-#ifndef __ZEPHYR__
-/**
-  * @brief  Enable specific interrupt group.
-  * @param  isr_type: mask for interrupt group to enable.
-  *         This parameter can be one of the following:
-  *         @arg LL_HIGH_ISR_ONLY: enable link layer high priority ISR.
-  *         @arg LL_LOW_ISR_ONLY: enable link layer SW low priority ISR.
-  *         @arg SYS_LOW_ISR: mask interrupts for all the other system ISR with
-  *              lower priority that link layer SW low interrupt.
-  * @retval None
-  */
-void LINKLAYER_PLAT_EnableSpecificIRQ(uint8_t isr_type)
-{
-  if( (isr_type & LL_HIGH_ISR_ONLY) != 0 )
-  {
-    prio_high_isr_counter--;
-    if(prio_high_isr_counter == 0)
-    {
-      /* When specific counter for link layer high ISR reaches 0, interrupt is enabled */
-      HAL_NVIC_EnableIRQ(RADIO_INTR_NUM);
-      /* USER CODE BEGIN LINKLAYER_PLAT_EnableSpecificIRQ_1*/
-
-      /* USER CODE END LINKLAYER_PLAT_EnableSpecificIRQ_1*/
-    }
-  }
-
-  if( (isr_type & LL_LOW_ISR_ONLY) != 0 )
-  {
-    prio_low_isr_counter--;
-    if(prio_low_isr_counter == 0)
-    {
-      /* When specific counter for link layer SW low ISR reaches 0, interrupt is enabled */
-      HAL_NVIC_EnableIRQ(RADIO_SW_LOW_INTR_NUM);
-    }
-
-  }
-
-  if( (isr_type & SYS_LOW_ISR) != 0 )
-  {
-    prio_sys_isr_counter--;
-    if(prio_sys_isr_counter == 0)
-    {
-      /* Restore basepri value */
-      __set_BASEPRI(local_basepri_value);
-    }
-  }
-}
-
-/**
-  * @brief  Disable specific interrupt group.
-  * @param  isr_type: mask for interrupt group to disable.
-  *         This parameter can be one of the following:
-  *         @arg LL_HIGH_ISR_ONLY: disable link layer high priority ISR.
-  *         @arg LL_LOW_ISR_ONLY: disable link layer SW low priority ISR.
-  *         @arg SYS_LOW_ISR: unmask interrupts for all the other system ISR with
-  *              lower priority that link layer SW low interrupt.
-  * @retval None
-  */
-void LINKLAYER_PLAT_DisableSpecificIRQ(uint8_t isr_type)
-{
-  if( (isr_type & LL_HIGH_ISR_ONLY) != 0 )
-  {
-    prio_high_isr_counter++;
-    if(prio_high_isr_counter == 1)
-    {
-      /* USER CODE BEGIN LINKLAYER_PLAT_DisableSpecificIRQ_1*/
-
-      /* USER CODE END LINKLAYER_PLAT_DisableSpecificIRQ_1*/
-      /* When specific counter for link layer high ISR value is 1, interrupt is disabled */
-      HAL_NVIC_DisableIRQ(RADIO_INTR_NUM);
-    }
-  }
-
-  if( (isr_type & LL_LOW_ISR_ONLY) != 0 )
-  {
-    prio_low_isr_counter++;
-    if(prio_low_isr_counter == 1)
-    {
-      /* When specific counter for link layer SW low ISR value is 1, interrupt is disabled */
-      HAL_NVIC_DisableIRQ(RADIO_SW_LOW_INTR_NUM);
-    }
-  }
-
-  if( (isr_type & SYS_LOW_ISR) != 0 )
-  {
-    prio_sys_isr_counter++;
-    if(prio_sys_isr_counter == 1)
-    {
-      /* Save basepri register value */
-      local_basepri_value = __get_BASEPRI();
-
-      /* Mask all other interrupts with lower priority that link layer SW low ISR */
-      __set_BASEPRI_MAX(RADIO_INTR_PRIO_LOW<<4);
-    }
-  }
-}
-#endif
-
 /**
   * @brief  Enable link layer high priority ISR only.
   * @param  None
@@ -387,115 +140,6 @@ void LINKLAYER_PLAT_DisableRadioIT(void)
   /* USER CODE END LINKLAYER_PLAT_DisableRadioIT_2*/
 }
 
-#ifndef __ZEPHYR__
-/**
-  * @brief  Link Layer notification for radio activity start.
-  * @param  None
-  * @retval None
-  */
-void LINKLAYER_PLAT_StartRadioEvt(void)
-{
-  __HAL_RCC_RADIO_CLK_SLEEP_ENABLE();
-  NVIC_SetPriority(RADIO_INTR_NUM, RADIO_INTR_PRIO_HIGH);
-#if (CFG_SCM_SUPPORTED == 1)
-  scm_notifyradiostate(SCM_RADIO_ACTIVE);
-#endif /* CFG_SCM_SUPPORTED */
-}
-
-/**
-  * @brief  Link Layer notification for radio activity end.
-  * @param  None
-  * @retval None
-  */
-void LINKLAYER_PLAT_StopRadioEvt(void)
-{
-  __HAL_RCC_RADIO_CLK_SLEEP_DISABLE();
-  NVIC_SetPriority(RADIO_INTR_NUM, RADIO_INTR_PRIO_LOW);
-#if (CFG_SCM_SUPPORTED == 1)
-  scm_notifyradiostate(SCM_RADIO_NOT_ACTIVE);
-#endif /* CFG_SCM_SUPPORTED */
-}
-
-/**
-  * @brief  Link Layer notification for RCO calibration start.
-  * @param  None
-  * @retval None
-  */
-void LINKLAYER_PLAT_RCOStartClbr(void)
-{
-#if (CFG_SCM_SUPPORTED == 1)
-#if (CFG_LPM_LEVEL != 0)
-#if (CFG_LPM_STDBY_SUPPORTED == 1)
-  UTIL_LPM_SetOffMode(1U << CFG_LPM_LL_HW_RCO_CLBR, UTIL_LPM_DISABLE);
-#endif /* (CFG_LPM_STDBY_SUPPORTED == 1) */
-  UTIL_LPM_SetStopMode(1U << CFG_LPM_LL_HW_RCO_CLBR, UTIL_LPM_DISABLE);
-#endif /* (CFG_LPM_LEVEL != 0) */
-  scm_setsystemclock(SCM_USER_LL_HW_RCO_CLBR, HSE_32MHZ);
-  while (LL_PWR_IsActiveFlag_VOS() == 0);
-#endif /* CFG_SCM_SUPPORTED */
-}
-
-/**
-  * @brief  Link Layer notification for RCO calibration end.
-  * @param  None
-  * @retval None
-  */
-void LINKLAYER_PLAT_RCOStopClbr(void)
-{
-#if (CFG_SCM_SUPPORTED == 1)
-#if (CFG_LPM_LEVEL != 0)
-#if (CFG_LPM_STDBY_SUPPORTED == 1)
-  UTIL_LPM_SetOffMode(1U << CFG_LPM_LL_HW_RCO_CLBR, UTIL_LPM_ENABLE);
-#endif /* (CFG_LPM_STDBY_SUPPORTED == 1) */
-  UTIL_LPM_SetStopMode(1U << CFG_LPM_LL_HW_RCO_CLBR, UTIL_LPM_ENABLE);
-#endif /* (CFG_LPM_LEVEL != 0) */
-  scm_setsystemclock(SCM_USER_LL_HW_RCO_CLBR, HSE_16MHZ);
-  while (LL_PWR_IsActiveFlag_VOS() == 0);
-#endif /* CFG_SCM_SUPPORTED */
-}
-
-/**
-  * @brief  Link Layer requests temperature.
-  * @param  None
-  * @retval None
-  */
-void LINKLAYER_PLAT_RequestTemperature(void)
-{
-#if (USE_TEMPERATURE_BASED_RADIO_CALIBRATION == 1)
-  ll_sys_bg_temperature_measurement();
-#endif /* USE_TEMPERATURE_BASED_RADIO_CALIBRATION */
-}
-
-/**
-  * @brief  Enable RTOS context switch.
-  * @param  None
-  * @retval None
-  */
-void LINKLAYER_PLAT_EnableOSContextSwitch(void)
-{
-}
-
-/**
-  * @brief  Disable RTOS context switch.
-  * @param  None
-  * @retval None
-  */
-void LINKLAYER_PLAT_DisableOSContextSwitch(void)
-{
-}
-
-/**
- * @brief Notify the upper layer that new Link Layer timings have been applied.
- * @param evnt_timing[in]: Evnt_timing_t pointer to structure contains drift time , execution time and scheduling time
- * @retval None.
- */
-void LINKLAYER_PLAT_SCHLDR_TIMING_UPDATE_NOT(Evnt_timing_t * p_evnt_timing)
-{
-  /* USER CODE BEGIN LINKLAYER_PLAT_SCHLDR_TIMING_UPDATE_NOT_0 */
-
-  /* USER CODE END LINKLAYER_PLAT_SCHLDR_TIMING_UPDATE_NOT_0 */
-}
-
 /**
   * @brief  Get the ST company ID.
   * @param  None
@@ -516,13 +160,6 @@ uint32_t LINKLAYER_PLAT_GetUDN(void)
   return LL_FLASH_GetUDN();
 }
 
-/* USER CODE BEGIN LINKLAYER_PLAT 0 */
-
-/* Radio bus clock control variables */
-uint8_t AHB5_SwitchedOff = 0;
-uint32_t radio_sleep_timer_val = 0;
-#endif
-
 /**
   * @brief  Notify the Link Layer platform layer the system will enter in WFI 
   *         and AHB5 clock may be turned of regarding the 2.4Ghz radio state. 
@@ -560,5 +197,3 @@ void LINKLAYER_PLAT_NotifyWFIExit(void)
     radio_sleep_timer_val = ll_intf_cmn_get_slptmr_value();
   }
 }
-
-/* USER CODE END LINKLAYER_PLAT 0 */
diff --git a/lib/stm32wba/BLE_TransparentMode/STM32_WPAN/Target/ll_sys_if.c b/lib/stm32wba/BLE_TransparentMode/STM32_WPAN/Target/ll_sys_if.c
index 317cd0a20..3fd8b505f 100644
--- a/lib/stm32wba/BLE_TransparentMode/STM32_WPAN/Target/ll_sys_if.c
+++ b/lib/stm32wba/BLE_TransparentMode/STM32_WPAN/Target/ll_sys_if.c
@@ -8,55 +8,38 @@
 #include "ll_intf_cmn.h"
 #include "utilities_common.h"
 
-static void ll_sys_sleep_clock_source_selection(void);
+static void ll_sys_sleep_clock_source_selection(void)
+{
+	uint16_t freq_value = 0;
+	uint32_t linklayer_slp_clk_src = LL_RCC_RADIOSLEEPSOURCE_NONE;
 
-void ll_sys_reset(void);
+	linklayer_slp_clk_src = LL_RCC_RADIO_GetSleepTimerClockSource();
+	switch (linklayer_slp_clk_src) {
+	case LL_RCC_RADIOSLEEPSOURCE_LSE:
+		linklayer_slp_clk_src = RTC_SLPTMR;
+		break;
 
-#ifndef __ZEPHYR__
-void ll_sys_bg_process_init(void)
-{
-	/* Register Link Layer task */
-	UTIL_SEQ_RegTask(1U << CFG_TASK_LINK_LAYER, UTIL_SEQ_RFU, ll_sys_bg_process);
-}
+	case LL_RCC_RADIOSLEEPSOURCE_LSI:
+		linklayer_slp_clk_src = RCO_SLPTMR;
+		break;
 
-void ll_sys_schedule_bg_process(void)
-{
-	UTIL_SEQ_SetTask(1U << CFG_TASK_LINK_LAYER, TASK_PRIO_LINK_LAYER);
-}
+	case LL_RCC_RADIOSLEEPSOURCE_HSE_DIV1000:
+		linklayer_slp_clk_src = CRYSTAL_OSCILLATOR_SLPTMR;
+		break;
 
-void ll_sys_schedule_bg_process_isr(void)
-{
-	UTIL_SEQ_SetTask(1U << CFG_TASK_LINK_LAYER, TASK_PRIO_LINK_LAYER);
+	case LL_RCC_RADIOSLEEPSOURCE_NONE:
+		/* No Link Layer sleep clock source selected */
+		assert_param(0);
+		break;
+	}
+	ll_intf_cmn_le_select_slp_clk_src((uint8_t)linklayer_slp_clk_src, &freq_value);
 }
-#endif
 
 void ll_sys_config_params(void)
 {
 	ll_intf_config_ll_ctx_params(USE_RADIO_LOW_ISR, NEXT_EVENT_SCHEDULING_FROM_ISR);
 }
 
-#ifndef __ZEPHYR__
-#if (USE_TEMPERATURE_BASED_RADIO_CALIBRATION == 1)
-void ll_sys_bg_temperature_measurement_init(void)
-{
-  	/* Register Temperature Measurement task */
-  	UTIL_SEQ_RegTask(1U << CFG_TASK_TEMP_MEAS, UTIL_SEQ_RFU, TEMPMEAS_RequestTemperatureMeasurement);
-}
-
-void ll_sys_bg_temperature_measurement(void)
-{
-	static uint8_t initial_temperature_acquisition = 0;
-
-	if (initial_temperature_acquisition == 0) {
-		TEMPMEAS_RequestTemperatureMeasurement();
-		initial_temperature_acquisition = 1;
-	} else {
-		UTIL_SEQ_SetTask(1U << CFG_TASK_TEMP_MEAS, CFG_SEQ_PRIO_0);
-		}
-}
-#endif /* USE_TEMPERATURE_BASED_RADIO_CALIBRATION */
-#endif
-
 #if (CFG_RADIO_LSE_SLEEP_TIMER_CUSTOM_SCA_RANGE == 0)
 uint8_t ll_sys_BLE_sleep_clock_accuracy_selection(void)
 {
@@ -90,33 +73,6 @@ uint8_t ll_sys_BLE_sleep_clock_accuracy_selection(void)
 }
 #endif /* CFG_RADIO_LSE_SLEEP_TIMER_CUSTOM_SCA_RANGE */
 
-void ll_sys_sleep_clock_source_selection(void)
-{
-	uint16_t freq_value = 0;
-	uint32_t linklayer_slp_clk_src = LL_RCC_RADIOSLEEPSOURCE_NONE;
-
-	linklayer_slp_clk_src = LL_RCC_RADIO_GetSleepTimerClockSource();
-	switch (linklayer_slp_clk_src) {
-	case LL_RCC_RADIOSLEEPSOURCE_LSE:
-		linklayer_slp_clk_src = RTC_SLPTMR;
-		break;
-
-	case LL_RCC_RADIOSLEEPSOURCE_LSI:
-		linklayer_slp_clk_src = RCO_SLPTMR;
-		break;
-
-	case LL_RCC_RADIOSLEEPSOURCE_HSE_DIV1000:
-		linklayer_slp_clk_src = CRYSTAL_OSCILLATOR_SLPTMR;
-		break;
-
-	case LL_RCC_RADIOSLEEPSOURCE_NONE:
-		/* No Link Layer sleep clock source selected */
-		assert_param(0);
-		break;
-	}
-	ll_intf_cmn_le_select_slp_clk_src((uint8_t)linklayer_slp_clk_src, &freq_value);
-}
-
 void ll_sys_reset(void)
 {
 #if (CFG_RADIO_LSE_SLEEP_TIMER_CUSTOM_SCA_RANGE == 0)