A Small Multi-Tasking Operation System Using 8051: os

00001 #ifndef OS_CORE_H
00002 #define OS_CORE_H
00003 
00004 #define TASK_CSW_TIME 2
00005 
00006 typedef struct OS_CORE_CTRL{
00007     INT8U Status;                     // Flag of operation system 
00008     INT8U TaskCswTimer;
00009     INT8U TaskSwitch;
00010 };
00011 #define cStartRun 0x01
00012 #define  OS_ENTER_CRITICAL()   EA=0
00013 #define  OS_EXIT_CRITICAL()    EA=1 
00014 extern INT8U data OSRunning;
00015 extern struct   OS_CORE_CTRL OsCoreCtrl;
00016 extern void OsCorePowerOnInit(void) LargeReentrant;
00017 extern void OsCoreStart(void)       LargeReentrant;                          // wait for first timer 0 interrupt to switch into task
00018 extern void OsCoreScheduler(void)   LargeReentrant;
00019 extern void OsCoreSchedulerIsr(void) LargeReentrant;  
00020 #endif
os_core.h
