📄 os_core.lst
字号:
810 * Returns : none
811 *********************************************************************************************************
812 */
813
814 static void OS_InitEventList (void)
815 {
816 #if OS_EVENT_EN && (OS_MAX_EVENTS > 0)
817 #if (OS_MAX_EVENTS > 1)
818 INT16U i;
819 OS_EVENT *pevent1;
820 OS_EVENT *pevent2;
821
822
823 OS_MemClr((INT8U *)&OSEventTbl[0], sizeof(OSEventTbl)); /* Clear the event table */
824 pevent1 = &OSEventTbl[0];
825 pevent2 = &OSEventTbl[1];
826 for (i = 0; i < (OS_MAX_EVENTS - 1); i++) { /* Init. list of free EVENT control blocks */
827 pevent1->OSEventType = OS_EVENT_TYPE_UNUSED;
828 pevent1->OSEventPtr = pevent2;
829 #if OS_EVENT_NAME_SIZE > 1
830 pevent1->OSEventName[0] = '?'; /* Unknown name */
831 pevent1->OSEventName[1] = OS_ASCII_NUL;
832 #endif
833 pevent1++;
C51 COMPILER V8.08 OS_CORE 08/04/2008 21:49:51 PAGE 16
834 pevent2++;
835 }
836 pevent1->OSEventType = OS_EVENT_TYPE_UNUSED;
837 pevent1->OSEventPtr = (OS_EVENT *)0;
838 #if OS_EVENT_NAME_SIZE > 1
839 pevent1->OSEventName[0] = '?';
840 pevent1->OSEventName[1] = OS_ASCII_NUL;
841 #endif
842 OSEventFreeList = &OSEventTbl[0];
843 #else
OSEventFreeList = &OSEventTbl[0]; /* Only have ONE event control block */
OSEventFreeList->OSEventType = OS_EVENT_TYPE_UNUSED;
OSEventFreeList->OSEventPtr = (OS_EVENT *)0;
#if OS_EVENT_NAME_SIZE > 1
OSEventFreeList->OSEventName[0] = '?'; /* Unknown name */
OSEventFreeList->OSEventName[1] = OS_ASCII_NUL;
#endif
#endif
852 #endif
853 }
854 /*$PAGE*/
855 /*
856 *********************************************************************************************************
857 * INITIALIZATION
858 * INITIALIZE MISCELLANEOUS VARIABLES
859 *
860 * Description: This function is called by OSInit() to initialize miscellaneous variables.
861 *
862 * Arguments : none
863 *
864 * Returns : none
865 *********************************************************************************************************
866 */
867
868 static void OS_InitMisc (void)
869 {
870 #if OS_TIME_GET_SET_EN > 0
871 OSTime = 0L; /* Clear the 32-bit system clock */
872 #endif
873
874 OSIntNesting = 0; /* Clear the interrupt nesting counter */
875 OSLockNesting = 0; /* Clear the scheduling lock counter */
876
877 OSTaskCtr = 0; /* Clear the number of tasks */
878
879 OSRunning = FALSE; /* Indicate that multitasking not started */
880
881 OSCtxSwCtr = 0; /* Clear the context switch counter */
882 OSIdleCtr = 0L; /* Clear the 32-bit idle counter */
883
884 #if OS_TASK_STAT_EN > 0
885 OSIdleCtrRun = 0L;
886 OSIdleCtrMax = 0L;
887 OSStatRdy = FALSE; /* Statistic task is not ready */
888 #endif
889 }
890 /*$PAGE*/
891 /*
892 *********************************************************************************************************
893 * INITIALIZATION
894 * INITIALIZE THE READY LIST
895 *
C51 COMPILER V8.08 OS_CORE 08/04/2008 21:49:51 PAGE 17
896 * Description: This function is called by OSInit() to initialize the Ready List.
897 *
898 * Arguments : none
899 *
900 * Returns : none
901 *********************************************************************************************************
902 */
903
904 static void OS_InitRdyList (void)
905 {
906 INT8U i;
907 #if OS_LOWEST_PRIO <= 63
908 INT8U *prdytbl;
909 #else
INT16U *prdytbl;
#endif
912
913
914 OSRdyGrp = 0; /* Clear the ready list */
915 prdytbl = &OSRdyTbl[0];
916 for (i = 0; i < OS_RDY_TBL_SIZE; i++) {
917 *prdytbl++ = 0;
918 }
919
920 OSPrioCur = 0;
921 OSPrioHighRdy = 0;
922
923 OSTCBHighRdy = (OS_TCB *)0;
924 OSTCBCur = (OS_TCB *)0;
925 }
926
927 /*$PAGE*/
928 /*
929 *********************************************************************************************************
930 * INITIALIZATION
931 * CREATING THE IDLE TASK
932 *
933 * Description: This function creates the Idle Task.
934 *
935 * Arguments : none
936 *
937 * Returns : none
938 *********************************************************************************************************
939 */
940
941 static void OS_InitTaskIdle (void)
942 {
943 #if OS_TASK_NAME_SIZE > 14
944 INT8U err;
945 #endif
946
947
948 #if OS_TASK_CREATE_EXT_EN > 0
949 #if OS_STK_GROWTH == 1
950 (void)OSTaskCreateExt(OS_TaskIdle,
951 (void *)0, /* No arguments passed to OS_TaskIdle
-() */
952 &OSTaskIdleStk[OS_TASK_IDLE_STK_SIZE - 1], /* Set Top-Of-Stack
- */
953 OS_IDLE_PRIO, /* Lowest priority level
- */
954 OS_TASK_IDLE_ID,
C51 COMPILER V8.08 OS_CORE 08/04/2008 21:49:51 PAGE 18
955 &OSTaskIdleStk[0], /* Set Bottom-Of-Stack
- */
956 OS_TASK_IDLE_STK_SIZE,
957 (void *)0, /* No TCB extension
- */
958 OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);/* Enable stack checking + clear stac
-k */
959 #else
(void)OSTaskCreateExt(OS_TaskIdle,
(void *)0, /* No arguments passed to OS_TaskIdle
-() */
&OSTaskIdleStk[0], /* Set Top-Of-Stack
- */
OS_IDLE_PRIO, /* Lowest priority level
- */
OS_TASK_IDLE_ID,
&OSTaskIdleStk[OS_TASK_IDLE_STK_SIZE - 1], /* Set Bottom-Of-Stack
- */
OS_TASK_IDLE_STK_SIZE,
(void *)0, /* No TCB extension
- */
OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);/* Enable stack checking + clear stac
-k */
#endif
970 #else
#if OS_STK_GROWTH == 1
(void)OSTaskCreate(OS_TaskIdle,
(void *)0,
&OSTaskIdleStk[OS_TASK_IDLE_STK_SIZE - 1],
OS_IDLE_PRIO);
#else
(void)OSTaskCreate(OS_TaskIdle,
(void *)0,
&OSTaskIdleStk[0],
OS_IDLE_PRIO);
#endif
#endif
983
984 #if OS_TASK_NAME_SIZE > 14
985 OSTaskNameSet(OS_IDLE_PRIO, (INT8U *)"uC/OS-II Idle", &err);
986 #endif
987 }
988 /*$PAGE*/
989 /*
990 *********************************************************************************************************
991 * INITIALIZATION
992 * CREATING THE STATISTIC TASK
993 *
994 * Description: This function creates the Statistic Task.
995 *
996 * Arguments : none
997 *
998 * Returns : none
999 *********************************************************************************************************
1000 */
1001
1002 #if OS_TASK_STAT_EN > 0
1003 static void OS_InitTaskStat (void)
1004 {
1005 #if OS_TASK_NAME_SIZE > 14
1006 INT8U err;
1007 #endif
C51 COMPILER V8.08 OS_CORE 08/04/2008 21:49:51 PAGE 19
1008
1009
1010 #if OS_TASK_CREATE_EXT_EN > 0
1011 #if OS_STK_GROWTH == 1
1012 (void)OSTaskCreateExt(OS_TaskStat,
1013 (void *)0, /* No args passed to OS_TaskStat()*
-/
1014 &OSTaskStatStk[OS_TASK_STAT_STK_SIZE - 1], /* Set Top-Of-Stack *
-/
1015 OS_STAT_PRIO, /* One higher than the idle task *
-/
1016 OS_TASK_STAT_ID,
1017 &OSTaskStatStk[0], /*⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -