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问 我用LPC2220，现做一个程序老是出错，好象是缓冲区溢出，操作系统用的是UC/OS2  ，编译用ADS1。2，我怎么查看一个任务占用了多少RAM？在UC/OS2中局部变量是不是使用的任务建立起来的缓冲区？？？
答 1: 可以用可以调试操作系统的调试软件啊据说MICETEK的JEDIVIEW可以调试操作系统，去问一下 答 2: 参考邵贝贝的书4.3堆栈检验OSTaskStkChk() 答 3: look                      Uart0SendSTR("版本V1.0\r\n");
                      i = OSTimeGet()/100;
                      Uart0SendSTR("系统连续运行：");
                      Uart0SendNUM(i/3600,0,0);
                      i %= 3600;
                      Uart0SendSTR("小时");
                      Uart0SendNUM(i/60,0,0);
                      Uart0SendSTR("分");
                      Uart0SendNUM(i%60,0,0);
                      Uart0SendSTR("秒\r\n");
                      Uart0SendSTR("CPU利用率：");
                      Uart0SendNUM(OSCPUUsage,0,0);
                      Uart0SendSTR("%\r\n");
                      Uart0SendSTR("任务        总堆栈        空闲栈        运行态\r\n");
                      Uart0SendSTR("----        ------        ------        ------\r\n");                      
                      for(i = 0;i < OS_LOWEST_PRIO+1; i ++)
                      {
                          err = OSTaskQuery(i,&task_data);
                          if(err != OS_NO_ERR) continue;
                          if(i == 2) continue;
                          Uart0SendSTR((char *)task_name[i]);
                          Uart0SendSTR("\t\t");
                          err = OSTaskStkChk(i,&task_stk);
                          if(err != OS_NO_ERR) continue;
                          Uart0SendNUM(task_stk.OSFree+task_stk.OSUsed,0,0);
                          Uart0SendSTR("\t\t");
                          Uart0SendNUM(task_stk.OSFree,0,0);
                          Uart0SendSTR("\t\t");
                          err = task_data.OSTCBStat;
                          if(err == OS_STAT_RDY) Uart0SendSTR("就绪");
                          else if(err == OS_STAT_SEM) Uart0SendSTR("等信号量");
                          else if(err == OS_STAT_MBOX) Uart0SendSTR("等邮件");
                          else if(err == OS_STAT_Q) Uart0SendSTR("等消息队列");
                          else if(err == OS_STAT_SUSPEND) Uart0SendSTR("挂起");
                          else if(err == OS_STAT_MUTEX) Uart0SendSTR("等互斥量");
                          else if(err == OS_STAT_FLAG) Uart0SendSTR("等标志");
                          Uart0SendSTR("\r\n");
                      }
                      Uart0SendSTR("64B内存块剩余：");
                      err = OSSemQuery(mem64_sem,&mem_sem);
                      Uart0SendNUM(mem_sem.OSCnt,0,0);
                      Uart0SendSTR("\r\n");
                      Uart0SendSTR("256B内存块剩余：");
                      err = OSSemQuery(mem256_sem,&mem_sem);
                      Uart0SendNUM(mem_sem.OSCnt,0,0);
                      Uart0SendSTR("\r\n");
                      Uart0SendSTR("512B内存块剩余：");
                      err = OSSemQuery(mem512_sem,&mem_sem);
                      Uart0SendNUM(mem_sem.OSCnt,0,0);
                      Uart0SendSTR("\r\n");
                      Uart0SendSTR("1KB内存块剩余：");
                      err = OSSemQuery(mem1024_sem,&mem_sem);
                      Uart0SendNUM(mem_sem.OSCnt,0,0);
                      Uart0SendSTR("\r\n");
                      Uart0SendSTR("^_^\r\n");