分析rtos 2 ucos iii系统开发μ

PageApp.c包含应用程序代码，由用户编写。 OS_CFG.H（定制μCOS-III中的功能，#define 64u// #defineOS_CFG_SEM_EN /*Enable(1)orDisable(0)codegenerationforSEMAPHORES*/#define /*IncludecodeforOSSemDel()OSSemSet()#defineOS_CFG_Q_ENgenerationforQUEUES*/

/*Enable(1)orDisable(0)#define Includecodefor/*TASK #defineOS_CFG_STAT_TASK_EN /*Enable(1)orDisable(0)thestatisticstask*/

#define /*Stacksize/*STATISTICTASK（系统任务#define (OS_CFG_PRIO_MAXOS_CFG_STAT_TASK_RATE_HZ10u/*Rateof(10HzTyp.) /*Stack #define /*TickrateinHertz#defineOS_CFG_TICK_TASK_PRIO (OS_CFG_PRIO_MAX-3u)/*Priority #defineOS_CFG_TICK_TASK_STK_SIZE /*Stacksize*/#defineOS_CFG_TICK_WHEEL_SIZE /*Numberof'spokes'intickwheel;SHOULDbeprime/*用户任务的优先级配 用户任务的堆栈大小配

static staticCPU_STK_SIZEApp_Taskled1Stk[APP_CFG_TASK_LED_STK_SIZE];staticOS_TCB staticCPU_STK_SIZEstatic static intmain{OS_ERROSSemCreate(&Sem1,“mysem1”,(OS_SEM_CTR)0,&err);OSSemCreate(&Sem2,"my *)"AppTaskStart", {/*ShouldNeverGet }

OSInit(OS_ERR*p_err)intmain{OS_ERR {/*ShouldNeverGetHere*/

voidOSTaskCreate *p_tcb,// *p_name,//任务名称 p_task,//指向任务代码 //*p_stk_base,//堆栈基地址CPU_STK_SIZE )static App_TaskStartTCB;//staticCPU_STK_SIZEApp_TaskStartStk[APP_CFG_TASK_START_STK_SIZE];//staticvoid App_TaskStart(void*p_arg);任务代码函数声明intmain(void)//主函数{ *)"AppTaskStart",(OS_TASK_PTR)App_TaskStart,) )(APP_CFG_TASK_START_STK_SIZE/(OS_MSG_QTY )(OS_OPT_TASK_STK_CHK| staticvoidApp_TaskStart(void{ }}

OSTaskSuspend(OS_TCB*p_tcb,OS_ERR*OSSemCreate OSSemPend 。OSSemPost(OS_SEM OS_ERR。voidOSTimeDly void{OS_ERR}void{OS_ERRPORTA_ISFR|=

voidApp_Taskled2(void{OS_ERRos_err;CPU_TSts;{OSSemPend(&Sem2,0,....... #define #define #define #define static static staticCPU_STK_SIZEApp_TaskStartStk[APP_CFG_TASK_START_STK_SIZE];staticOS_TCB staticCPU_STK_SIZEApp_Taskled1Stk[APP_CFG_TASK_LED_STK_SIZE];staticOS_TCB staticCPU_STK_SIZEApp_Taskled2Stk[APP_CFG_TASK_LED_STK_SIZE];staticvoidApp_TaskStart staticvoidApp_Taskled1 staticvoid intmain{OS_ERROSInit(&err);//μC/OS-IIIOSSemCreate(&Sem1,“mysem1”,(OS_SEM_CTR)0,&err);//信号量创建 *)"AppTaskStart",(OS_TASK_PTR)App_TaskStart, *)0, ) )(APP_CFG_TASK_START_STK_SIZE/10u),(CPU_STK_SIZE)APP_CFG_TASK_START_STK_SIZE,(OS_MSG_QTY)0,(OS_TICK)0,(void *)0, )(OS_OPT_TASK_STK_CHK| staticvoidApp_TaskStart(void{OS_ERRos_err; PORTA_ISFR|=0x00000020;//清中断标志位 OSTaskCreate((OS_TCB *)"AppTaskled1",(OS_TASK_PTR)App_Taskled1,)/(CPU_STK_SIZE)APP_CFG_TASK_LED_STK_SIZE,(OS_MSG_QTY)0,(OS_TICK)0,(void*)0,(OS_OPT)(OS_OPT_TASK_STK_CHK| while(1){OSTimeDly(2000,OS_OPT_TIME_DLY,&os_err); }staticvoidApp_Taskled1(void{OS_E