刚接触wince，我把例程中的LED驱动中的GPB8改称GPF5，具体改动如下：
BOOL LEDGpioInit()
{
RETAILMSG(1,(TEXT("LED_Gpio_Setting----\r\n")));
.....
// s2440IOP->rGPBCON  = (s2440IOP->rGPBCON  &~(3 << 16)) | (1<< 16); // GPB8 ==
s2440IOP->rGPFCON  = (s2440IOP->rGPFCON  &~(3 << 10)) | (1<< 10);
//GPF5==OUTPUT
OUTPUT.
return TRUE;
}
BOOL LED_IOControl(DWORD hOpenContext,
       DWORD dwCode,
       PBYTE pBufIn,
       DWORD dwLenIn,
       PBYTE pBufOut,
       DWORD dwLenOut,
       PDWORD pdwActualOut)
{
LEDGpioInit();
switch(dwCode)
{
....
  case IO_CTL_LED_4_ON:
// s2440IOP->rGPBDAT=s2440IOP->rGPBDAT&~(0x1<<8);
  s2440IOP->rGPFDAT=s2440IOP->rGPFDAT&~(0x1<<5);//GPF5置低

  break;
  .....
  case IO_CTL_LED_4_OFF:
  //s2440IOP->rGPBDAT=s2440IOP->rGPBDAT|(0x1<<8);
  s2440IOP->rGPFDAT=s2440IOP->rGPFDAT|(0x1<<5);//GPF5置高

  break;
  default:
  break;  
}
    
RETAILMSG(1,(TEXT("LED:Ioctl code = 0x%x\r\n"), dwCode));
return TRUE;
}
    其他的我没有动，改完我在PB5里编译了一下，然后就SYSGEN了，再把生成的bin烧入核心板，然后调用“mini2440测试”程序测试，怎么点“LED4_ON”或者“LED4_OFF”都没有用，在示波器上看不到任何电平变化。PF5偶尔还有脉冲，这是为什么？请高手指点

可能还要改init.c里面的设置，同样仿照GPB端口

谢谢二楼回复！但是我在init.c里参照GPB端口对GPF5进行设置
还是不行，出现的结果跟前面一样。不知还有什么地方不对？
init.c在Kernel/Oal下

我后来在init.c里仅仅将GPF端口初始化一下，其他的都不动
也不对GPF5进行任何操作，
但用示波器在GPF5上测的有脉冲出现（当wince 起来之后）
具体改动如下：
void ConfigureGPIO()
{
......
   s2440IOP->GPBDAT    = 0x62;
    s2440IOP->GPBUP     = 0x7FF;
    s2440IOP->GPBCON    = 0x15401; //0x2A96A4;
.......
//增加GPF端口初始化
    s2440IOP->GPFDAT    = 0xF0;
    s2440IOP->GPFUP     = 0xFF;
    s2440IOP->GPFCON    = 0x55aa;
.......
}
请指点

是不是該先確認一下GPF5是不是被用來控制其他裝置了？

我也遇到的类似的问题，麻烦高手看看
在友善光盘提供的BSP和LEDtest代码中，改动如下代码，想实现GPF5的高低电平变化，可是没能成功

改动文件1：C:\WINCE500\PLATFORM\mini2440\Src\Kernel\Oal\init.c
    s2440IOP->GPECON    = (s2440IOP->GPECON & ~(0x3<<30)) | (0x1<<30);
    s2440IOP->GPECON    = (s2440IOP->GPECON & ~(0x3<<28)) | (0x1<<28);
//增加GPF端口初始化
s2440IOP->GPFDAT = 0xF0;
s2440IOP->GPFUP = 0xFF;
s2440IOP->GPFCON = 0x55aa;......

改动文件2：C:\WINCE500\PLATFORM\mini2440\Src\Drivers\LEDdriver\LEDdriver.cpp
#define IO_CTL_LED_4_OFF 0x09
#define IO_CTL_LED_ALL_OFF 0x0a
#define IO_WHJ_ON 0x0b
#define IO_WHJ_OFF 0x0c......

BOOL LEDGpioInit()
{
    RETAILMSG(1,(TEXT("LED_Gpio_Setting----\r\n")));
    s2440IOP->rGPBCON  = (s2440IOP->rGPBCON  &~(3 << 10)) | (1<< 10);    // GPB5 == OUTPUT.
    s2440IOP->rGPBCON  = (s2440IOP->rGPBCON  &~(3 << 12)) | (1<< 12);    // GPB6 == OUTPUT.
    s2440IOP->rGPBCON  = (s2440IOP->rGPBCON  &~(3 << 14)) | (1<< 14);    // GPB7 == OUTPUT.
    s2440IOP->rGPBCON  = (s2440IOP->rGPBCON  &~(3 << 16)) | (1<< 16);    // GPB8 == OUTPUT.
    s2440IOP->rGPFCON  = (s2440IOP->rGPFCON  &~(3 << 10)) | (1<< 10);    // GPF5 == OUTPUT   WHJ.
    return TRUE;
}

BOOL LED_IOControl(DWORD hOpenContext,
                   DWORD dwCode,
                   PBYTE pBufIn,
                   DWORD dwLenIn,
                   PBYTE pBufOut,
                   DWORD dwLenOut,
                   PDWORD pdwActualOut)
{
    LEDGpioInit();
    switch(dwCode)
    {
    case IO_CTL_LED_1_ON:
        s2440IOP->rGPBDAT=s2440IOP->rGPBDAT&~(0x1<<5);
        break;
    case IO_CTL_LED_2_ON:
        s2440IOP->rGPBDAT=s2440IOP->rGPBDAT&~(0x1<<6);
        break;
    case IO_CTL_LED_3_ON:
        s2440IOP->rGPBDAT=s2440IOP->rGPBDAT&~(0x1<<7);
        break;
    case IO_CTL_LED_4_ON:
        s2440IOP->rGPBDAT=s2440IOP->rGPBDAT&~(0x1<<8);
        break;
    case IO_CTL_LED_ALL_ON:
        s2440IOP->rGPBDAT=s2440IOP->rGPBDAT&~(0xF<<5);
        break;
    case IO_CTL_LED_1_OFF:
        s2440IOP->rGPBDAT=s2440IOP->rGPBDAT|(0x1<<5);
        break;
    case IO_CTL_LED_2_OFF:
        s2440IOP->rGPBDAT=s2440IOP->rGPBDAT|(0x1<<6);
        break;
    case IO_CTL_LED_3_OFF:
        s2440IOP->rGPBDAT=s2440IOP->rGPBDAT|(0x1<<7);
        break;
    case IO_CTL_LED_4_OFF:
        s2440IOP->rGPBDAT=s2440IOP->rGPBDAT|(0x1<<8);
        break;
    case IO_CTL_LED_ALL_OFF:
        s2440IOP->rGPBDAT=s2440IOP->rGPBDAT|(0xF<<5);
        break;
    case IO_WHJ_ON:
        s2440IOP->rGPFDAT=s2440IOP->rGPFDAT&~(0x1<<5);
        break;
    case IO_WHJ_OFF:
        s2440IOP->rGPFDAT=s2440IOP->rGPFDAT|(0x1<<5);
        break;
    default:
        break;        
    }


改动文件3：D:\mini2440\evc\my2440\LEDtest\LEDTESTDlg.cpp

......
void CLEDTESTDlg::OnButton1()
{
    // TODO: Add your control notification handler code here
    DeviceIoControl(leddriver,IO_CTL_LED_1_ON, NULL,0,NULL,0,NULL,NULL);
    MessageBox(L"1");
    DeviceIoControl(leddriver,IO_WHJ_ON, NULL,0,NULL,0,NULL,NULL);
    MessageBox(L"2");
}
......

void CLEDTESTDlg::OnButton6()
{
    // TODO: Add your control notification handler code here
    DeviceIoControl(leddriver,IO_CTL_LED_1_OFF,NULL,0,NULL,0,NULL,NULL);
    MessageBox(L"3");
    DeviceIoControl(leddriver,IO_WHJ_OFF,NULL,0,NULL,0,NULL,NULL);
    MessageBox(L"4");
}

......

接着楼上，我装的系统是友善光盘中的wince5.0

这里人气不旺啊
这两天想到个原因，BSP中改动的代码没有编译。于是，自己重新编译了一个NK.bin文件。
GPF5是有脉冲输出了，但是没有规律。还请高手指点哈啊

可以了嘛？LZ

问题解决了么,搂住?俺也急切想知道怎么解决,谢谢