定时器中断驱动问题

mymehis

定时器中断驱动问题 [复制链接]

micro2440定时器中断，用定时器1，对应端口没有输出
以下是程序段

//中断IST
DWORD TIMER_IST(LPVOID lpParameter)
{DWORD dwRes = 0;
BOOL bRes = 1;
while(1)
{dwRes = WaitForSingleObject(hIntpar,INFINITE);
   if (dwRes != WAIT_OBJECT_0)
      {
      MessageBox(NULL,_T("Wait timer event failed."), NULL, MB_OK);
      return 0;
      }
   else
      {
      //MessageBox(NULL,_T("Wait timer event ok."), NULL, MB_OK);
      if (bRes)
            {
               GpioUp();
               }
      else
            {
            GpioDown();
               }
         bRes = !bRes;
      }
   InterruptDone(dwSysIntr);
}
  return 0;
}

//中断
VOID TimerInterrupt(void)
{
HANDLE hIntpar;  //事件
HANDLE hThreadIST;//线程
DWORD dwSysIntr;
DWORD dwIrq=IRQ_TIMER1;
BOOL bRes;
//BOOL bTimerThreadRun;

//获取逻辑中断号
bRes = KernelIoControl( IOCTL_HAL_REQUEST_SYSINTR,
            &dwIrq,
            sizeof( dwIrq ),
            &dwSysIntr,
            sizeof( dwSysIntr ),
            NULL );
if (!bRes)
{
  RETAILMSG(1,(TEXT("Get system interrupt failed. \n")));
// return FALSE;
}
//创建事件
hIntpar=CreateEvent(NULL,FALSE,FALSE,NULL);

//创建线程
DWORD dwThreadId;
hThreadIST=CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)TIMER_IST, NULL, CREATE_SUSPENDED, &dwThreadId);
CeSetThreadPriority(hThreadIST,5);
//注册中断事件
if(InterruptInitialize(dwSysIntr,hIntpar,NULL,NULL)){
   RETAILMSG(1,(TEXT("Init interrupt ok! \n")));
}
else{ RETAILMSG(1,(TEXT("Init interrupt failed! \n")));

  }

//bTimerThreadRun=TRUE;
//恢复线程等待
  ResumeThread(hThreadIST);
}

/*******************************************************************************************
函数名称: TIM_Init
描述: 驱动程序初始化函数
输入参数: DWORD dwContext: 设备管理器传递给本驱动的参数, 通常为流接口驱动在注册表内的位置
输出参数: 无
返回: 驱动程序句柄
*******************************************************************************************/
PUBLIC DWORD TIM_Init(DWORD dwContext)
{ TIM_InitializeAddresses();
TimerInterrupt();

#if 0
RETAILMSG(TRUE, (TEXT("v_pIOPregs->GPBCON is 0x%x).\r\n"), v_pIOPregs->GPBCON));
RETAILMSG(TRUE, (TEXT("v_PWMregs->TCFG0  is 0x%x).\r\n"), v_PWMregs->TCFG0));
RETAILMSG(TRUE, (TEXT("v_PWMregs->TCFG1  is 0x%x).\r\n"), v_PWMregs->TCFG1));
RETAILMSG(TRUE, (TEXT("v_PWMregs->TCMPB0 is 0x%x).\r\n"), v_PWMregs->TCMPB0));
RETAILMSG(TRUE, (TEXT("v_PWMregs->TCNTB0  is 0x%x).\r\n"), v_PWMregs->TCNTB0));
RETAILMSG(TRUE, (TEXT("v_PWMregs->TCON  is 0x%x).\r\n"), v_PWMregs->TCON));
#endif

RETAILMSG(1, (TEXT("::: PWM_Init Sucessfully. \r\n")));

return (DWORD)1;
}

/*******************************************************************************************
函数名称: TIM_IOControl
描述: 驱动程序 I/O 请求
输入参数:
输出参数:
返回: TRUE: 成功 FALSE: 失败
*******************************************************************************************/
BOOL
TIM_IOControl(
DWORD Handle,
DWORD dwIoControlCode,
PBYTE pInBuf,
DWORD nInBufSize,
PBYTE pOutBuf,
DWORD nOutBufSize,
PDWORD pBytesReturned
)
{
BOOL bErr = FALSE;

switch (dwIoControlCode)
{
case IOCTL_TIM_SET_PRESCALER:    /* 设置预分频值 */
if (nInBufSize >= 2)                         /* 需要2个字节缓冲区 */
{
TIM_SetPrescaler(pInBuf[0], pInBuf[1]);
bErr = TRUE;
}
break;

case IOCTL_TIM_SET_DIVIDER:
      if (nInBufSize >= 2)                         /* 需要2个字节缓冲区 */
            bErr = TIM_SetDivider(pInBuf[0], pInBuf[1]);
            // 设置分频值       (定时器编号, 分频值)
   break;

case IOCTL_TIM_START:
if (nInBufSize >= 3)                         /* 需要3个字缓冲区 */
{
      DWORD t_num = *((DWORD *)pInBuf);
      DWORD cycle = *((DWORD *)(pInBuf + 4));
      DWORD duty = *((DWORD *)(pInBuf + 8));
#if 0
RETAILMSG(TRUE, (TEXT("t_num is 0x%x).\r\n"), t_num));
RETAILMSG(TRUE, (TEXT("cycle is 0x%x).\r\n"), cycle));
RETAILMSG(TRUE, (TEXT("duty  is 0x%x).\r\n"), duty));
#endif
         bErr = TIM_StartPWM(t_num, cycle, duty);
}
break;

case IOCTL_TIM_GET_FREQUENCY:
if ((nInBufSize >= 0) && (nOutBufSize > 0))
{
      DWORD t_num = *((DWORD *)pInBuf);

         bErr = TIM_GetFrequency(t_num, (DWORD *)pOutBuf);
*pBytesReturned = 1;
}
break;

default:
break;
}

return bErr;
} // TIM_IOControl

在应用程序中
void CTimeDlg::OnBnClickedStart()
{
// TODO: Add your control notification handler code here
BOOL ret;
BYTE prescale[2]={1,97};
BYTE divider[2]={1,2};
UpdateData(TRUE);

ret=::DeviceIoControl(hFile,IOCTL_TIM_SET_PRESCALER,prescale,2,NULL,0,NULL,NULL);
if(ret!=TRUE)
{MessageBox(_T("设置预分频失败"));
   return;
}

ret=::DeviceIoControl(hFile,IOCTL_TIM_SET_DIVIDER,divider,2,NULL,0,NULL,NULL);
if(ret!=TRUE)
{MessageBox(_T("设置分频失败"));
   return;
}

DWORD buff[3]={1,FREQ_VALUE,0};
ret=::DeviceIoControl(hFile,IOCTL_TIM_START,buff,3,NULL,0,NULL,NULL);
if(ret!=TRUE)
{MessageBox(_T("启动定时器失败"));
return;}

   DWORD timer=1,curfreq,actlen;
   ret=::DeviceIoControl(hFile,IOCTL_TIM_GET_FREQUENCY,&timer,1,&curfreq,1,&actlen,NULL);
   if(ret!=TRUE)
{MessageBox(_T("获取频率失败"));
   return;
     }
m_srtTIMfreq.Format(_T("%d"),curfreq);
UpdateData(FALSE);

}
用定时器0，TOUT0有输出。。。但用定时器1，中断，设置的端口没有反应，求助

jjt000440949

你没有对定时器1做设置和start吧。你的TIM_setXXX函数原型看不到。
不知你怎么做的。
TimerInterrupt 最好不要放到init中做，也放在iocontrol中做，因为你会改变timerIrq

定时器中断驱动问题 [复制链接]

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