我想用UcosIII做个让音乐播放9秒的程序，怎么做，一个按键启动播放，9秒后停止，再按还可以在播放9秒

ai602683692 · 发表于 2016-11-18 14:05:39

本帖最后由 ai602683692 于 2016-11-18 15:20 编辑

求救呀按两次Key3,key4就崩溃了，\template\default\common\header.htm
#include "includes.h
"#include "bell.h"

#define START_TASK_PRIO             3

#define START_STK_SIZE                64

OS_TCB StartTaskTCB;

CPU_STK START_TASK_STK[START_STK_SIZE];

void start_task(void *p_arg);

#define KEY_TASK_PRIO             4

#define KEY_STK_SIZE                128

OS_TCB KeyTaskTCB;

CPU_STK KEY_TASK_STK[KEY_STK_SIZE];
void key_task(void *p_arg);

#define BELL_TASK_PRIO             10

#define BELL_STK_SIZE                128

OS_TCB BellTaskTCB;

CPU_STK BELL_TASK_STK[BELL_STK_SIZE];
void bell_task(void *p_arg);

int main(void)
{
      OS_ERR err;
      CPU_SR_ALLOC();
      BSP_Init();


      OSInit(&err);
      OS_CRITICAL_ENTER();

      OSTaskCreate((OS_TCB       * )&StartTaskTCB,
                              (CPU_CHAR       * )"start task",
               (OS_TASK_PTR )start_task,
               (void             * )0,
               (OS_PRIO       )START_TASK_PRIO,
               (CPU_STK * )&START_TASK_STK[0],
               (CPU_STK_SIZE)START_STK_SIZE/10,
               (CPU_STK_SIZE)START_STK_SIZE,
               (OS_MSG_QTY  )0,
               (OS_TICK       )0,
               (void          * )0,
               (OS_OPT    )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR,
               (OS_ERR       * )&err);
      OS_CRITICAL_EXIT();
      OSStart(&err);
      while(1);
}

//¿aê¼èÎÎñoˉêy
void start_task(void *p_arg)
{
      OS_ERR err;
      CPU_SR_ALLOC();
      p_arg = p_arg;


      CPU_Init();
#if OS_CFG_STAT_TASK_EN > 0u
OSStatTaskCPUUsageInit(&err);
#endif

#ifdef CPU_CFG_INT_DIS_MEAS_EN
CPU_IntDisMeasMaxCurReset();
#endif



      OS_CRITICAL_ENTER();

            OSTaskCreate((OS_TCB       * )&KeyTaskTCB,
      (CPU_CHAR       * )"key task",
               (OS_TASK_PTR )key_task,
               (void             * )0,
               (OS_PRIO       )KEY_TASK_PRIO,
               (CPU_STK * )&KEY_TASK_STK[0],
               (CPU_STK_SIZE)KEY_STK_SIZE/10,
               (CPU_STK_SIZE)KEY_STK_SIZE,
               (OS_MSG_QTY  )0,
               (OS_TICK       )0,
               (void          * )0,
               (OS_OPT    )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR,
               (OS_ERR       * )&err);

      OS_TaskSuspend((OS_TCB*)&StartTaskTCB,&err);
      OS_CRITICAL_EXIT();
}

void key_task(void *p_arg)
{
      u8 key;
            OS_ERR err;
         p_arg = p_arg;

while(1)
{

      key=KEY_Scan(0);

      switch(key)
               {
               case KEY3_PRES:
                     LED1=0;
                  OSTaskCreate((OS_TCB       * )&BellTaskTCB,
            (CPU_CHAR       * )"bell task",
               (OS_TASK_PTR )bell_task,
               (void             * )0,
               (OS_PRIO       )BELL_TASK_PRIO,
               (CPU_STK * )&BELL_TASK_STK[0],
               (CPU_STK_SIZE)BELL_STK_SIZE/10,
               (CPU_STK_SIZE)BELL_STK_SIZE,
               (OS_MSG_QTY  )0,
               (OS_TICK       )0,
               (void          * )0,
               (OS_OPT    )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR,
               (OS_ERR       * )&err);
      break;

               case KEY4_PRES :

               LED1=1;

               OSTaskDel((OS_TCB       * )&BellTaskTCB,&err);

               break;

               case KEY5_PRES:
                        OS_TaskSuspend((OS_TCB*)&BellTaskTCB,&err);
               break;
               case KEY6_PRES:
                        OS_TaskResume((OS_TCB*)&BellTaskTCB,&err);
               break;

               default :
   break;

      }

  delay_ms(30);
}
}

void bell_task(void *p_arg)
{

      p_arg = p_arg;

      while(1)
      {

            bmp3_play();

      }

  }