建立工程，成功创建两个虚拟串口

source/main/lock_resource.h

@@ -0,0 +1,53 @@
+/**
+  ******************************************************************************
+  * @file    lock_resource.h
+  * @author  MCD Application Team
+  * @brief   Header for lock_resource.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2019 STMicroelectronics. 
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the 
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __LOCK_RESOURCE_H__
+#define __LOCK_RESOURCE_H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32mp1xx_hal.h"
+
+
+/* Exported types ------------------------------------------------------------*/
+typedef enum
+{
+  LOCK_RESOURCE_STATUS_OK       = 0x00U,
+  LOCK_RESOURCE_STATUS_ERROR    = 0x01U,
+  LOCK_RESOURCE_STATUS_TIMEOUT  = 0x02U
+} LockResource_Status_t;
+
+/* Exported constants --------------------------------------------------------*/
+#define LOCK_RESOURCE_TIMEOUT   100U /* timeout in ms */
+
+/* Exported macro ------------------------------------------------------------*/
+#define PERIPH_LOCK(__Periph__)       Periph_Lock(__Periph__, LOCK_RESOURCE_TIMEOUT)
+#define PERIPH_UNLOCK(__Periph__)     Periph_Unlock(__Periph__)
+
+/* Exported functions ------------------------------------------------------- */
+LockResource_Status_t Periph_Lock(void* Peripheral, uint32_t Timeout);
+void Periph_Unlock(void* Peripheral);
+
+
+
+
+#endif /* __LOCK_RESOURCE_H__ */
+
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/