5、os_cfg.h配置文件
#define OS_VIEW_MODULE 0 /* When 1, indicate that uC/OS-View is present */
/* ---------------------- MISCELLANEOUS ----------------------- */
#define OS_ARG_CHK_EN 1 /* Enable (1) or Disable (0) argument checking */
#define OS_CPU_HOOKS_EN 1 /* uC/OS-II hooks are found in the processor port files */
#define OS_DEBUG_EN 1 /* Enable(1) debug variables */
#define OS_EVENT_NAME_SIZE 32 /* Determine the size of the name of a Sem, Mutex, Mbox or Q */
#define OS_LOWEST_PRIO 63 /* Defines the lowest priority that can be assigned ... */
/* ... MUST NEVER be higher than 254! */
#define OS_MAX_EVENTS 10 /* Max. number of event control blocks in your application */
#define OS_MAX_FLAGS 5 /* Max. number of Event Flag Groups in your application */
#define OS_MAX_MEM_PART 5 /* Max. number of memory partitions */
#define OS_MAX_QS 4 /* Max. number of queue control blocks in your application */
#define OS_MAX_TASKS 20 /* Max. number of tasks in your application, MUST be >= 2 */
#define OS_SCHED_LOCK_EN 1 /* Include code for OSSchedLock() and OSSchedUnlock() */
#define OS_TASK_IDLE_STK_SIZE 128 /* Idle task stack size (# of OS_STK wide entries) */
#define OS_TASK_STAT_EN 1 /* 统计任务 */
#define OS_TASK_STAT_STK_SIZE 128 /* Statistics task stack size (# of OS_STK wide entries) */
#define OS_TASK_STAT_STK_CHK_EN 1 /* Check task stacks from statistic task */
#define OS_TICK_STEP_EN 0 /* Enable tick stepping feature for uC/OS-View */
#define OS_TICKS_PER_SEC 100 /* 与时钟节拍中断对应 */
/* ----------------------- EVENT FLAGS ------------------------ */
#define OS_FLAG_EN 1 /* Enable (1) or Disable (0) code generation for EVENT FLAGS */
#define OS_FLAG_WAIT_CLR_EN 1 /* Include code for Wait on Clear EVENT FLAGS */
#define OS_FLAG_ACCEPT_EN 1 /* Include code for OSFlagAccept() */
#define OS_FLAG_DEL_EN 1 /* Include code for OSFlagDel() */
#define OS_FLAG_NAME_SIZE 32 /* Determine the size of the name of an event flag group */
#define OS_FLAG_QUERY_EN 1 /* Include code for OSFlagQuery() */
#if OS_VERSION >= 280
#define OS_FLAGS_NBITS 16 /* Size in #bits of OS_FLAGS data type (8, 16 or 32) */
#endif
/* -------------------- MESSAGE MAILBOXES --------------------- */
#define OS_MBOX_EN 1 /* Enable (1) or Disable (0) code generation for MAILBOXES */
#define OS_MBOX_ACCEPT_EN 1 /* Include code for OSMboxAccept() */
#define OS_MBOX_DEL_EN 1 /* Include code for OSMboxDel() */
#define OS_MBOX_POST_EN 1 /* Include code for OSMboxPost() */
#define OS_MBOX_POST_OPT_EN 1 /* Include code for OSMboxPostOpt() */
#define OS_MBOX_QUERY_EN 1 /* Include code for OSMboxQuery() */
/* --------------------- MEMORY MANAGEMENT -------------------- */
#define OS_MEM_EN 1 /* Enable (1) or Disable (0) code generation for MEMORY MANAGER */
#define OS_MEM_QUERY_EN 1 /* Include code for OSMemQuery() */
#define OS_MEM_NAME_SIZE 32 /* Determine the size of a memory partition name */
/* ---------------- MUTUAL EXCLUSION SEMAPHORES --------------- */
#define OS_MUTEX_EN 1 /* Enable (1) or Disable (0) code generation for MUTEX */
#define OS_MUTEX_ACCEPT_EN 1 /* Include code for OSMutexAccept() */
#define OS_MUTEX_DEL_EN 1 /* Include code for OSMutexDel() */
#define OS_MUTEX_QUERY_EN 1 /* Include code for OSMutexQuery() */
/* ---------------------- MESSAGE QUEUES ---------------------- */
#define OS_Q_EN 1 /* Enable (1) or Disable (0) code generation for QUEUES */
#define OS_Q_ACCEPT_EN 1 /* Include code for OSQAccept() */
#define OS_Q_DEL_EN 1 /* Include code for OSQDel() */
#define OS_Q_FLUSH_EN 1 /* Include code for OSQFlush() */
#define OS_Q_POST_EN 1 /* Include code for OSQPost() */
#define OS_Q_POST_FRONT_EN 1 /* Include code for OSQPostFront() */
#define OS_Q_POST_OPT_EN 1 /* Include code for OSQPostOpt() */
#define OS_Q_QUERY_EN 1 /* Include code for OSQQuery() */
/* ------------------------ SEMAPHORES ------------------------ */
#define OS_SEM_EN 1 /* Enable (1) or Disable (0) code generation for SEMAPHORES */
#define OS_SEM_ACCEPT_EN 1 /* Include code for OSSemAccept() */
#define OS_SEM_DEL_EN 1 /* Include code for OSSemDel() */
#define OS_SEM_QUERY_EN 1 /* Include code for OSSemQuery() */
#define OS_SEM_SET_EN 1 /* Include code for OSSemSet() */
/* --------------------- TASK MANAGEMENT ---------------------- */
#define OS_TASK_CHANGE_PRIO_EN 1 /* Include code for OSTaskChangePrio() */
#define OS_TASK_CREATE_EN 1 /* Include code for OSTaskCreate() */
#define OS_TASK_CREATE_EXT_EN 1 /* Include code for OSTaskCreateExt() */
#define OS_TASK_DEL_EN 1 /* Include code for OSTaskDel() */
#define OS_TASK_NAME_SIZE 32 /* Determine the size of a task name */
#define OS_TASK_PROFILE_EN 1 /* Include variables in OS_TCB for profiling */
#define OS_TASK_QUERY_EN 1 /* Include code for OSTaskQuery() */
#define OS_TASK_SUSPEND_EN 1 /* Include code for OSTaskSuspend() and OSTaskResume() */
#define OS_TASK_SW_HOOK_EN 1 /* Include code for OSTaskSwHook() */
/* --------------------- TIME MANAGEMENT ---------------------- */
#define OS_TIME_DLY_HMSM_EN 1 /* Include code for OSTimeDlyHMSM() */
#define OS_TIME_DLY_RESUME_EN 1 /* Include code for OSTimeDlyResume() */
#define OS_TIME_GET_SET_EN 1 /* Include code for OSTimeGet() and OSTimeSet() */
#define OS_TIME_TICK_HOOK_EN 1 /* Include code for OSTimeTickHook() */
#if OS_VERSION < 280
typedef INT16U OS_FLAGS;
#endif
6、includes.h文件
//必备的头文件
#include "os_cpu.h"
#include "os_cfg.h"
#include "ucos_ii.h"
//其他
#include "string.h"
7、应用程序文件 main.c
OS_STK TestTask1Stk[1024];
OS_STK TestTask2Stk[1024];
void TestTask2(void *pdata);
void TestTask1(void *pdata)
{
#if OS_CRITICAL_METHOD==3
OS_CPU_SR cpu_sr;
#endif
pdata=pdata;
startTimeTick();//开启时钟中断
OSStatInit();//开启统计任务
OSTaskCreateExt(TestTask2,(void *)0,&TestTask2Stk[1023],6,
6,&TestTask2Stk[0],1024,(void *)0,
OS_TASK_OPT_STK_CHK|OS_TASK_OPT_STK_CLR);
while(1){
OS_ENTER_CRITICAL();
putStr("In task1 !\r\n");
OS_EXIT_CRITICAL();
OSTimeDly(OS_TICKS_PER_SEC);
}
}
void TestTask2(void *pdata)
{
#if OS_CRITICAL_METHOD==3
OS_CPU_SR cpu_sr;
#endif
pdata=pdata;
while(1){
OS_ENTER_CRITICAL();
putStr("In task2 !\r\n");
OS_EXIT_CRITICAL();
OSTimeDlyHMSM(0,0,2,0);
}
}
int main(void)
{
OSInit();
uart0_init();
putStr("uC/OS V2.52\r\n");
startTimer4();//初始化定时器4
OSTaskCreateExt(TestTask1,(void *)0,&TestTask1Stk[1023],5,
5,&TestTask1Stk[0],1024,(void *)0,
OS_TASK_OPT_STK_CHK|OS_TASK_OPT_STK_CLR);
OSStart();
return 0;
}
8、移植测试
用仿真器和LED闪烁配合，我使用OpenJtag仿真器，开发板上有2个LED
首先保证编译正确；
接着验证OSTaskStkInit和OSStartHighRdy函数；
添加一个任务，验证OSCtxSw函数；
最后验证OSInitCtxSw和OSTickISR，这一步是最难的，先保证定时器运行正常（暂时不进行任务切换），然后单步调试这两个函数，重点观察cpu状态和寄存器以及堆栈中的内容是否如自己所想。
9、运行结果：
uC/OS V2.52
In task1 !
In task2 !
CPUUsage=0%
In task1 !
CPUUsage=1%
In task1 !
In task2 !
CPUUsage=1%
In task1 !
CPUUsage=1%
。。。。。。。。。。
所有代码下载：
 |
| 文件: |
qt2410e_ucos2_gyh.tar.gz |
| 大小: |
557KB |
| 下载: |
下载 | |
