init project

Signed-off-by: a1012112796 <1012112796@qq.com>

libraries/HAL_Drivers/drv_lptim.h

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author          Notes
+ * 2019-05-06     Zero-Free       first version
+ */
+
+#ifndef  __DRV_PMTIMER_H__
+#define  __DRV_PMTIMER_H__
+
+#include <rtthread.h>
+
+rt_uint32_t stm32l4_lptim_get_countfreq(void);
+rt_uint32_t stm32l4_lptim_get_tick_max(void);
+rt_uint32_t stm32l4_lptim_get_current_tick(void);
+
+rt_err_t stm32l4_lptim_start(rt_uint32_t load);
+void stm32l4_lptim_stop(void);
+
+#endif /* __DRV_PMTIMER_H__ */