/*
*********************************************************************************************************
* uC/OS-II
* The Real-Time Kernel
* CORE FUNCTIONS
*
* (c) Copyright 1992-2003, Jean J. Labrosse, Weston, FL
* All Rights Reserved
*
* File : OS_CORE.C
* By : Jean J. Labrosse
*********************************************************************************************************
*/
#ifndef OS_MASTER_FILE
#define OS_GLOBALS
#include <ucos_ii.h>
#endif
/*
*********************************************************************************************************
* MAPPING TABLE TO MAP BIT POSITION TO BIT MASK
*
* Note: Index into table is desired bit position, 0..7
* Indexed value corresponds to bit mask
*********************************************************************************************************
*/
INT8U const OSMapTbl[8] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80};
/*
*********************************************************************************************************
* PRIORITY RESOLUTION TABLE
*
* Note: Index into table is bit pattern to resolve highest priority
* Indexed value corresponds to highest priority bit position (i.e. 0..7)
*********************************************************************************************************
*/
INT8U const OSUnMapTbl[256] = {
0, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x00 to 0x0F */
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x10 to 0x1F */
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x20 to 0x2F */
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x30 to 0x3F */
6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x40 to 0x4F */
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x50 to 0x5F */
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x60 to 0x6F */
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x70 to 0x7F */
7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x80 to 0x8F */
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x90 to 0x9F */
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0xA0 to 0xAF */
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0xB0 to 0xBF */
6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0xC0 to 0xCF */
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0xD0 to 0xDF */
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0xE0 to 0xEF */
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0 /* 0xF0 to 0xFF */
};
/*$PAGE*/
/*
*********************************************************************************************************
* FUNCTION PROTOTYPES
*********************************************************************************************************
*/
static void OS_InitEventList(void);
static void OS_InitMisc(void);
static void OS_InitRdyList(void);
static void OS_InitTaskIdle(void);
#if OS_TASK_STAT_EN > 0
static void OS_InitTaskStat(void);
#endif
static void OS_InitTCBList(void);
/*$PAGE*/
/*
*********************************************************************************************************
* GET THE NAME OF A SEMAPHORE, MUTEX, MAILBOX or QUEUE
*
* Description: This function is used to obtain the name assigned to a semaphore, mutex, mailbox or queue.
*
* Arguments : pevent is a pointer to the event group. 'pevent' can point either to a semaphore,
* a mutex, a mailbox or a queue. Where this function is concerned, the actual
* type is irrelevant.
*
* pname is a pointer to an ASCII string that will receive the name of the semaphore,
* mutex, mailbox or queue. The string must be able to hold at least
* OS_EVENT_NAME_SIZE characters.
*
* err is a pointer to an error code that can contain one of the following values:
*
* OS_NO_ERR if the name was copied to 'pname'
* OS_ERR_EVENT_TYPE if 'pevent' is not pointing to the proper event
* control block type.
* OS_ERR_PNAME_NULL You passed a NULL pointer for 'pname'
* OS_ERR_PEVENT_NULL if you passed a NULL pointer for 'pevent'
*
* Returns : The length of the string or 0 if the 'pevent' is a NULL pointer.
*********************************************************************************************************
*/
#if OS_EVENT_NAME_SIZE > 1
INT8U OSEventNameGet (OS_EVENT *pevent, char *pname, INT8U *err)
{
#if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
OS_CPU_SR cpu_sr;
#endif
INT8U len;
OS_ENTER_CRITICAL();
#if OS_ARG_CHK_EN > 0
if (pevent == (OS_EVENT *)0) { /* Is 'pevent' a NULL pointer? */
OS_EXIT_CRITICAL(); /* Yes */
*err = OS_ERR_PEVENT_NULL;
return (0);
}
if (pname == (char *)0) { /* Is 'pname' a NULL pointer? */
OS_EXIT_CRITICAL(); /* Yes */
*err = OS_ERR_PNAME_NULL;
return (0);
}
#endif
switch (pevent->OSEventType) {
case OS_EVENT_TYPE_SEM:
case OS_EVENT_TYPE_MUTEX:
case OS_EVENT_TYPE_MBOX:
case OS_EVENT_TYPE_Q:
break;
default:
OS_EXIT_CRITICAL();
*err = OS_ERR_EVENT_TYPE;
return (0);
}
len = OS_StrCopy(pname, pevent->OSEventName); /* Copy name from OS_EVENT */
OS_EXIT_CRITICAL();
*err = OS_NO_ERR;
return (len);
}
#endif
/*$PAGE*/
/*
*********************************************************************************************************
* ASSIGN A NAME TO A SEMAPHORE, MUTEX, MAILBOX or QUEUE
*
* Description: This function assigns a name to a semaphore, mutex, mailbox or queue.
*
* Arguments : pevent is a pointer to the event group. 'pevent' can point either to a semaphore,
* a mutex, a mailbox or a queue. Where this function is concerned, it doesn't
* matter the actual type.
*
* pname is a pointer to an ASCII string that will be used as the name of the semaphore,
* mutex, mailbox or queue. The string must be able to hold at least
* OS_EVENT_NAME_SIZE characters.
*
* err is a pointer to an error code that can contain one of the following values:
*
* OS_NO_ERR if the requested task is resumed
* OS_ERR_EVENT_TYPE if 'pevent' is not pointing to the proper event
*
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Protues仿真ARM,I2C,SPI,LED仿真显示 (989个子文件)
os_cpu_a.asm 16KB
os_cpu_a.asm 16KB
os_cpu_a.asm 16KB
os_cpu_a.asm 16KB
os_cpu_a.asm 16KB
os_core.c 65KB
os_core.c 65KB
os_core.c 65KB
os_core.c 65KB
os_core.c 65KB
os_flag.c 51KB
os_flag.c 51KB
os_flag.c 51KB
os_flag.c 51KB
os_flag.c 51KB
OS_CORE.C 49KB
OS_CORE.C 49KB
OS_CORE.C 49KB
OS_CORE.C 49KB
OS_CORE.C 49KB
OS_CORE.C 49KB
os_task.c 44KB
os_task.c 44KB
os_task.c 44KB
os_task.c 44KB
os_task.c 44KB
OS_FLAG.C 43KB
OS_FLAG.C 43KB
OS_FLAG.C 43KB
OS_FLAG.C 43KB
OS_FLAG.C 43KB
OS_FLAG.C 43KB
os_q.c 36KB
os_q.c 36KB
os_q.c 36KB
os_q.c 36KB
os_q.c 36KB
OS_TASK.C 35KB
OS_TASK.C 35KB
OS_TASK.C 35KB
OS_TASK.C 35KB
OS_TASK.C 35KB
OS_TASK.C 35KB
OS_Q.C 34KB
OS_Q.C 34KB
OS_Q.C 34KB
OS_Q.C 34KB
OS_Q.C 34KB
OS_Q.C 34KB
os_mutex.c 28KB
os_mutex.c 28KB
os_mutex.c 28KB
os_mutex.c 28KB
os_mutex.c 28KB
OS_MUTEX.C 27KB
OS_MUTEX.C 27KB
OS_MUTEX.C 27KB
OS_MUTEX.C 27KB
OS_MUTEX.C 27KB
OS_MUTEX.C 27KB
os_mbox.c 24KB
os_mbox.c 24KB
os_mbox.c 24KB
os_mbox.c 24KB
os_mbox.c 24KB
OS_MBOX.C 23KB
OS_MBOX.C 23KB
OS_MBOX.C 23KB
OS_MBOX.C 23KB
OS_MBOX.C 23KB
OS_MBOX.C 23KB
os_sem.c 20KB
os_sem.c 20KB
os_sem.c 20KB
os_sem.c 20KB
os_sem.c 20KB
OS_SEM.C 19KB
OS_SEM.C 19KB
OS_SEM.C 19KB
OS_SEM.C 19KB
OS_SEM.C 19KB
OS_SEM.C 19KB
os_mem.c 17KB
os_mem.c 17KB
os_mem.c 17KB
os_mem.c 17KB
os_mem.c 17KB
bsp.c 16KB
bsp.c 16KB
bsp.c 16KB
bsp.c 16KB
bsp.c 16KB
OS_MEM.C 14KB
OS_MEM.C 14KB
OS_MEM.C 14KB
OS_MEM.C 14KB
OS_MEM.C 14KB
OS_MEM.C 14KB
os_cpu_c.c 13KB
os_cpu_c.c 13KB
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资源评论
- xinbenbei2014-05-22Proteus在MCS-51&ARM7系统中的应用百例 里面的文件啊
- Fabregas72013-05-26整理的不错,不过没找到要用的
- lynn17052013-05-08好像没有对应的proteus中有C程序
- chenzuihanjiang2012-12-03楼主整理的很好,文件都能使用,谢谢分享!!!
- banchengfeng2014-11-08资料有用,新手学习帮手,谢谢楼主。
lijianguozxj
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