1 files changed, 73 insertions, 0 deletions
diff --git a/Drivers/BSP/Components/stm32wb_at/stm32wb_at_ll.c b/Drivers/BSP/Components/stm32wb_at/stm32wb_at_ll.c
new file mode 100644
index 000000000..5f74dd4a9
--- /dev/null
+++ b/Drivers/BSP/Components/stm32wb_at/stm32wb_at_ll.c
@@ -0,0 +1,73 @@
+/**
+  ******************************************************************************
+  * @file    stm32wb_at_ll.c
+  * @author  MCD Application Team
+  * @brief   Transport layer interface file, user have to implement these
+  *          functions in his application.
+  *
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2021 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32wb_at.h"
+#include "stm32wb_at_ll.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/**
+ * @brief  Init the transport module
+ * @param  None
+ * @retval 0 in case of success, an error code otherwise
+ */
+__weak uint8_t stm32wb_at_ll_Init(void)
+{
+  return 1;
+}
+
+/**
+ * @brief  De init the transport module
+ * @param  None
+ * @retval 0 in case of success, an error code otherwise
+ */
+__weak uint8_t stm32wb_at_ll_DeInit(void)
+{
+  return 1;
+}
+
+/**
+ * @brief  Triggers the reception of a byte
+ * @param  pBuff pointer to the first byte to transmit
+ * @param  Size byte count to transfer
+ * @retval 0 in case of success, an error code otherwise
+ */
+__weak uint8_t stm32wb_at_ll_Transmit(uint8_t *pBuff, uint16_t Size)
+{
+  UNUSED(pBuff);
+  UNUSED(Size);
+
+  return 1;
+}
+
+/**
+ * @brief  Triggers the reception of a byte
+ * @param  new_frame containts the length of a new frame received in rx buffer, else 0
+ * @retval None
+ */
+__weak void stm32wb_at_ll_Async_receive(uint8_t new_frame)
+{
+  UNUSED(new_frame);
+  return;
+}