📄 os_core.lst
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876 1 OSIdleCtr = 0L; /* Clear the 32-bit idle counter
- */
877 1
878 1 #if OS_TASK_STAT_EN > 0
OSIdleCtrRun = 0L;
OSIdleCtrMax = 0L;
OSStatRdy = FALSE; /* Statistic task is not ready
- */
C51 COMPILER V8.05a OS_CORE 04/11/2007 16:19:49 PAGE 16
#endif
883 1 }
884 /*$PAGE*/
885 /*
886 *********************************************************************************************************
887 * INITIALIZATION
888 * INITIALIZE THE READY LIST
889 *
890 * Description: This function is called by OSInit() to initialize the Ready List.
891 *
892 * Arguments : none
893 *
894 * Returns : none
895 *********************************************************************************************************
896 */
897
898 static void OS_InitRdyList (void)
899 {
900 1 INT16U i;
901 1 INT8U *prdytbl;
902 1
903 1
904 1 OSRdyGrp = 0x00; /* Clear the ready list
- */
905 1 prdytbl = &OSRdyTbl[0];
906 1 for (i = 0; i < OS_RDY_TBL_SIZE; i++) {
907 2 *prdytbl++ = 0x00;
908 2 }
909 1
910 1 OSPrioCur = 0;
911 1 OSPrioHighRdy = 0;
912 1
913 1 OSTCBHighRdy = (OS_TCB *)0;
914 1 OSTCBCur = (OS_TCB *)0;
915 1 }
916
917 /*$PAGE*/
918 /*
919 *********************************************************************************************************
920 * INITIALIZATION
921 * CREATING THE IDLE TASK
922 *
923 * Description: This function creates the Idle Task.
924 *
925 * Arguments : none
926 *
927 * Returns : none
928 *********************************************************************************************************
929 */
930
931 static void OS_InitTaskIdle (void)
932 {
933 1 #if OS_TASK_CREATE_EXT_EN > 0
934 1 #if OS_STK_GROWTH == 1
(void)OSTaskCreateExt(OS_TaskIdle,
(void *)0, /* No arguments passed to OS_TaskIdle
-() */
&OSTaskIdleStk[OS_TASK_IDLE_STK_SIZE - 1], /* Set Top-Of-Stack
- */
OS_IDLE_PRIO, /* Lowest priority level
- */
OS_TASK_IDLE_ID,
C51 COMPILER V8.05a OS_CORE 04/11/2007 16:19:49 PAGE 17
&OSTaskIdleStk[0], /* 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 */
#else
945 1 (void)OSTaskCreateExt(OS_TaskIdle,
946 1 (void *)0, /* No arguments passed to OS_TaskIdle
-() */
947 1 &OSTaskIdleStk[0], /* Set Top-Of-Stack
- */
948 1 OS_IDLE_PRIO, /* Lowest priority level
- */
949 1 OS_TASK_IDLE_ID,
950 1 &OSTaskIdleStk[OS_TASK_IDLE_STK_SIZE - 1], /* Set Bottom-Of-Stack
- */
951 1 OS_TASK_IDLE_STK_SIZE,
952 1 (void *)0, /* No TCB extension
- */
953 1 OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);/* Enable stack checking + clear stac
-k */
954 1 #endif
955 1 #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
968 1 }
969 /*$PAGE*/
970 /*
971 *********************************************************************************************************
972 * INITIALIZATION
973 * CREATING THE STATISTIC TASK
974 *
975 * Description: This function creates the Statistic Task.
976 *
977 * Arguments : none
978 *
979 * Returns : none
980 *********************************************************************************************************
981 */
982
983 #if OS_TASK_STAT_EN > 0
static void OS_InitTaskStat (void)
{
#if OS_TASK_CREATE_EXT_EN > 0
#if OS_STK_GROWTH == 1
(void)OSTaskCreateExt(OS_TaskStat,
(void *)0, /* No args passed to OS_TaskStat()*
-/
&OSTaskStatStk[OS_TASK_STAT_STK_SIZE - 1], /* Set Top-Of-Stack *
-/
C51 COMPILER V8.05a OS_CORE 04/11/2007 16:19:49 PAGE 18
OS_STAT_PRIO, /* One higher than the idle task *
-/
OS_TASK_STAT_ID,
&OSTaskStatStk[0], /* Set Bottom-Of-Stack *
-/
OS_TASK_STAT_STK_SIZE,
(void *)0, /* No TCB extension *
-/
OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR); /* Enable stack checking + clear *
-/
#else
(void)OSTaskCreateExt(OS_TaskStat,
(void *)0, /* No args passed to OS_TaskStat()*
-/
&OSTaskStatStk[0], /* Set Top-Of-Stack *
-/
OS_STAT_PRIO, /* One higher than the idle task *
-/
OS_TASK_STAT_ID,
&OSTaskStatStk[OS_TASK_STAT_STK_SIZE - 1], /* Set Bottom-Of-Stack *
-/
OS_TASK_STAT_STK_SIZE,
(void *)0, /* No TCB extension *
-/
OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR); /* Enable stack checking + clear *
-/
#endif
#else
#if OS_STK_GROWTH == 1
(void)OSTaskCreate(OS_TaskStat,
(void *)0, /* No args passed to OS_TaskStat()*
-/
&OSTaskStatStk[OS_TASK_STAT_STK_SIZE - 1], /* Set Top-Of-Stack *
-/
OS_STAT_PRIO); /* One higher than the idle task *
-/
#else
(void)OSTaskCreate(OS_TaskStat,
(void *)0, /* No args passed to OS_TaskStat()*
-/
&OSTaskStatStk[0], /* Set Top-Of-Stack *
-/
OS_STAT_PRIO); /* One higher than the idle task *
-/
#endif
#endif
}
#endif
1023 /*$PAGE*/
1024 /*
1025 *********************************************************************************************************
1026 * INITIALIZATION
1027 * INITIALIZE THE FREE LIST OF TASK CONTROL BLOCKS
1028 *
1029 * Description: This function is called by OSInit() to initialize the free list of OS_TCBs.
1030 *
1031 * Arguments : none
1032 *
1033 * Returns : none
1034 *********************************************************************************************************
1035 */
1036
C51 COMPILER V8.05a OS_CORE 04/11/2007 16:19:49 PAGE 19
1037 static void OS_InitTCBList (void)
1038 {
1039 1 INT8U i;
1040 1 OS_TCB *ptcb1;
1041 1 OS_TCB *ptcb2;
1042 1
1043 1
1044 1 (void)memset(&OSTCBTbl[0], 0, sizeof(OSTCBTbl)); /* Clear all the TCBs */
1045 1 (void)memset(&OSTCBPrioTbl[0], 0, sizeof(OSTCBPrioTbl)); /* Clear the priority table */
1046 1 ptcb1 = &OSTCBTbl[0];
1047 1 ptcb2 = &OSTCBTbl[1];
1048 1 for (i = 0; i < (OS_MAX_TASKS + OS_N_SYS_TASKS - 1); i++) { /* Init. list of free TCBs */
1049 2 ptcb1->OSTCBNext = ptcb2;
1050 2 #if OS_TASK_NAME_SIZE > 0
(void)strcpy(ptcb1->OSTCBTaskName, "?"); /* Unknown name */
#endif
1053 2 ptcb1++;
1054 2 ptcb2++;
1055 2 }
1056 1 ptcb1->OSTCBNext = (OS_TCB *)0; /* Last OS_TCB */
1057 1 #if OS_TASK_NAME_SIZE > 0
(void)strcpy(ptcb1->OSTCBTaskName, "?");
#endif
1060 1 OSTCBList = (OS_TCB *)0; /* TCB lists initializations */
1061 1 OSTCBFreeList = &OSTCBTbl[0];
1062 1 }
1063 /*$PAGE*/
1064 /*
1065 *********************************************************************************************************
1066 * SCHEDULER
1067 *
1068 * Description: This function is called by other uC/OS-II services to determine whether a new, high
1069 * priority task has been made ready to run. This function is invoked by TASK level code
1070 * ⌨️ 快捷键说明
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