重构BSP架构

2026-05-24 16:29:34 +08:00
parent e0d75f4eb2
commit 15fd21eba6
66 changed files with 5320 additions and 0 deletions
@@ -0,0 +1,64 @@
+#include "Bsp.h"
+
+#define  DEM_CR      *(volatile u32 *)0xE000EDFC
+#define  DWT_CR      *(volatile u32 *)0xE0001000
+#define  DWT_CYCCNT  *(volatile u32 *)0xE0001004
+
+#define  DEM_CR_TRCENA                   (1 << 24)
+#define  DWT_CR_CYCCNTENA                (1 <<  0)
+
+/**
+ * @brief  初始化延时函数
+ * @param  void
+ * @retval void
+ * @note   void
+ * @example void
+ */
+void SystemDelayConfig(void)
+{
+    DEM_CR  |=  DEM_CR_TRCENA; 
+    DWT_CR  |=  DWT_CR_CYCCNTENA;
+    DWT_CYCCNT = 0;
+}
+
+/**
+ * @brief  读取DWT计数器的值
+ * @param  void
+ * @retval void
+ * @note   void
+ * @example void
+ */
+uint32_t SystemGetDwtCnt(void)
+{
+    return((uint32_t)DWT_CYCCNT);
+}
+
+/**
+ * @brief  微秒级延时函数
+ * @param  void
+ * @retval void
+ * @note   void
+ * @example void
+ */
+void SystemDelayUs(uint32_t Us)
+{
+     uint32_t Start = 0,End = 0,Ts = 0;
+     Start = SystemGetDwtCnt();
+ 
+     Ts =  Us * (SystemCoreClock / 1000000U);      
+ 
+     End = Start + Ts;      
+ 
+     while(SystemGetDwtCnt() < End){;} 
+}
+/**
+ * @brief  毫秒级延时函数
+ * @param  void
+ * @retval void
+ * @note   void
+ * @example void
+ */
+void SystemDelayMs(uint32_t Ms)
+{
+    SystemDelayUs(Ms * 1000);
+}