more component for port

2026-05-29 21:27:35 +08:00
parent 345be1983b
commit d57a09872d
6 changed files with 412 additions and 0 deletions
@@ -0,0 +1,34 @@
+#ifndef INCLUDED_OS_LOOPDELAY_H
+#define INCLUDED_OS_LOOPDELAY_H
+
+#ifndef INCLUDED_OS_TYPES_H
+#include <os_types.h>
+#endif /*INCLUDED_OS_TYPES_H*/
+
+#define OS_LOOP_DELAY_US(n) (n * SystemCoreClock/3000000)
+#define OS_LOOP_DELAY_MS(n) (n * SystemCoreClock/3000)
+#define OS_LOOP_DELAY_S(n)  (n * SystemCoreClock/3)
+
+/*
+
+    72Mhz时钟时，当ulCount为1时，函数耗时3个时钟，延时=3*1/72us=1/24us
+
+    SystemCoreClock=72000000
+
+    us级延时,延时n微秒
+    LoopDelay(n*(SystemCoreClock/3000000));
+
+    ms级延时,延时n毫秒
+    LoopDelay(n*(SystemCoreClock/3000));
+
+    m级延时,延时n秒
+    LoopDelay(n*(SystemCoreClock/3));
+*/
+
+void os_loop_delay(unsigned long ulCount);
+
+#define OS_LoopDelayUS(n)   os_loop_delay(OS_LOOP_DELAY_US(n))
+#define OS_LoopDelayMS(n)   os_loop_delay(OS_LOOP_DELAY_MS(n))
+#define OS_LoopDelayS(n)    os_loop_delay(OS_LOOP_DELAY_S(n))
+
+#endif /*INCLUDED_OS_LOOPDELAY_H*/