【请前辈们指点一二】初学ARM11，自己在OK6410上写了一个LED程序，但有几个地方不太明白

OK6410使用VB.NET控制ARM11开发板LED程序
我是一个从单片机思想转变到ARM上来的，一开始很不习惯使用ARM的开发方式，主要是自己对嵌入式的架构理解起来不那么快，受单片机开发影响，P0=0;即可点亮LED灯的影响，一直没太搞懂arm上LED驱动是怎么回事，总想拿VB.NET写个程序能控制板子上的小灯。借鉴了一下别人的成果，写了这个小程序，希望对像我这样在门口的朋友有个指导意义。另有几个概念我梳理下，希望高手指点一下我的思路是否正确。
1.?对于跑WINCE系统的arm板原则上不允许客户的C程序直接访问物理地址或者虚拟地址
2.?对于用于的C程序想访问设备的话，系统里面必须要有驱动，驱动应该作为内核级程序运行的
3.?想点亮LED时应用程序必须通过方法去掉系统api，然后由系统对应去打开驱动，再利用驱动里的方法对应去操作寄存器
4.?送数取数
5.?为什么这个程序既能跑在wince下又能跑在X86下呢？??请高手指点

Imports?System
Imports?System.Collections.Generic
Imports?System.ComponentModel
Imports?System.Text
Imports?System.Drawing
Imports?System.Runtime.InteropServices
Public?Class?Form1
????Const?OPEN_EXISTING?=?3
????Const?GENERIC_READ?=?&H80000000
????Const?GENERIC_WRITE?=?&H40000000
????Const?INVALID_HANDLE_VALUE?=?-1

????Const?LED_1_ON?=?&H4001060
????Const?LED_2_ON?=?&H4001070
????Const?LED_3_ON?=?&H4001080
????Const?LED_4_ON?=?&H4001090

????Const?LED_1_OFF?=?&H4001061
????Const?LED_2_OFF?=?&H4001071
????Const?LED_3_OFF?=?&H4001081
????Const?LED_4_OFF?=?&H4001091

????Private?hPort?As?IntPtr
????Declare?Function?CreateFile?Lib?"coredll.dll"?Alias?"CreateFile"?(ByVal?lpFileName?As?String,?ByVal?dwDesiredAccess?As?Long,?ByVal?dwShareMode?As?Long,?ByVal?lpSecurityAttributes?As?IntPtr,?ByVal?dwCreationDisposition?As?Long,?ByVal?dwFlagsAndAttributes?As?Long,?ByVal?hTemplateFile?As?IntPtr)?As?IntPtr
????Declare?Function?DeviceIoControl?Lib?"coredll.dll"?Alias?"DeviceIoControl"?(ByVal?hDevice?As?System.IntPtr,?ByVal?dwIoControlCode?As?Long,?ByVal?lpInBuffer()?As?Byte,?ByVal?nInBufferSize?As?Long,?ByVal?lpOutBuffer()?As?Byte,?ByVal?nOutBufferSize?As?Long,?ByVal?lpBytesReturned?As?Long,?ByVal?lpOverlapped?As?System.IntPtr)?As?Boolean

????Private?Sub?Form1_Load(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?MyBase.Load

????End?Sub

????Private?Sub?Button1_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button1.Click
????????Try
????????????hPort?=?CreateFile("LED1:",?GENERIC_READ?Or?GENERIC_WRITE,?0,?IntPtr.Zero,?OPEN_EXISTING,?0,?IntPtr.Zero)
????????????Dim?led1()?As?Byte?=?{0}
????????????Dim?pout(10)?As?Byte
????????????DeviceIoControl(hPort,?LED_1_ON,?led1,?0,?pout,?0,?0,?IntPtr.Zero)?????'在这里修改LED_1_ON就可以对所有的LED进行操作
????????Catch?ex?As?Exception
????????????MsgBox("操作LED失败")
????????End?Try
????End?Sub

????Private?Sub?Button2_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button2.Click
????????Try
????????????hPort?=?CreateFile("LED1:",?GENERIC_READ?Or?GENERIC_WRITE,?0,?IntPtr.Zero,?OPEN_EXISTING,?0,?IntPtr.Zero)
????????????Dim?led1()?As?Byte?=?{0}
????????????Dim?pout(10)?As?Byte
????????????DeviceIoControl(hPort,?LED_1_OFF,?led1,?0,?pout,?0,?0,?IntPtr.Zero)
????????Catch?ex?As?Exception
????????????MsgBox("操作LED失败")
????????End?Try
????End?Sub

????Private?Sub?Button3_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button3.Click
????????Try
????????????hPort?=?CreateFile("LED1:",?GENERIC_READ?Or?GENERIC_WRITE,?0,?IntPtr.Zero,?OPEN_EXISTING,?0,?IntPtr.Zero)
????????????Dim?led1()?As?Byte?=?{0}
????????????Dim?pout(10)?As?Byte
????????????DeviceIoControl(hPort,?LED_2_OFF,?led1,?0,?pout,?0,?0,?IntPtr.Zero)
????????Catch?ex?As?Exception
????????????MsgBox("操作LED失败")
????????End?Try
????End?Sub

????Private?Sub?Button4_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button4.Click
????????Try
????????????hPort?=?CreateFile("LED1:",?GENERIC_READ?Or?GENERIC_WRITE,?0,?IntPtr.Zero,?OPEN_EXISTING,?0,?IntPtr.Zero)
????????????Dim?led1()?As?Byte?=?{0}
????????????Dim?pout(10)?As?Byte
????????????DeviceIoControl(hPort,?LED_3_OFF,?led1,?0,?pout,?0,?0,?IntPtr.Zero)
????????Catch?ex?As?Exception
????????????MsgBox("操作LED失败")
????????End?Try
????End?Sub

????Private?Sub?Button5_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button5.Click
????????Try
????????????hPort?=?CreateFile("LED1:",?GENERIC_READ?Or?GENERIC_WRITE,?0,?IntPtr.Zero,?OPEN_EXISTING,?0,?IntPtr.Zero)
????????????Dim?led1()?As?Byte?=?{0}
????????????Dim?pout(10)?As?Byte
????????????DeviceIoControl(hPort,?LED_4_OFF,?led1,?0,?pout,?0,?0,?IntPtr.Zero)
????????Catch?ex?As?Exception
????????????MsgBox("操作LED失败")
????????End?Try
????End?Sub

????Private?Sub?Button6_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button6.Click
????????Try
????????????hPort?=?CreateFile("LED1:",?GENERIC_READ?Or?GENERIC_WRITE,?0,?IntPtr.Zero,?OPEN_EXISTING,?0,?IntPtr.Zero)
????????????Dim?led1()?As?Byte?=?{0}
????????????Dim?pout(10)?As?Byte
????????????DeviceIoControl(hPort,?LED_2_ON,?led1,?0,?pout,?0,?0,?IntPtr.Zero)?????'在这里修改LED_1_ON就可以对所有的LED进行操作
????????Catch?ex?As?Exception
????????????MsgBox("操作LED失败")
????????End?Try
????End?Sub

????Private?Sub?Button7_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button7.Click
????????Try
????????????hPort?=?CreateFile("LED1:",?GENERIC_READ?Or?GENERIC_WRITE,?0,?IntPtr.Zero,?OPEN_EXISTING,?0,?IntPtr.Zero)
????????????Dim?led1()?As?Byte?=?{0}
????????????Dim?pout(10)?As?Byte
????????????DeviceIoControl(hPort,?LED_3_ON,?led1,?0,?pout,?0,?0,?IntPtr.Zero)?????'在这里修改LED_1_ON就可以对所有的LED进行操作
????????Catch?ex?As?Exception
????????????MsgBox("操作LED失败")
????????End?Try
????End?Sub

????Private?Sub?Button8_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button8.Click
????????Try
????????????hPort?=?CreateFile("LED1:",?GENERIC_READ?Or?GENERIC_WRITE,?0,?IntPtr.Zero,?OPEN_EXISTING,?0,?IntPtr.Zero)
????????????Dim?led1()?As?Byte?=?{0}
????????????Dim?pout(10)?As?Byte
????????????DeviceIoControl(hPort,?LED_4_ON,?led1,?0,?pout,?0,?0,?IntPtr.Zero)?????'在这里修改LED_1_ON就可以对所有的LED进行操作
????????Catch?ex?As?Exception
????????????MsgBox("操作LED失败")
????????End?Try
????End?Sub
End?Class

路过，帮顶，，，，

路过，学习一下！

共同学习，希望高手点评

期待高手解答。

不错，学习下^_^