1、實驗十 數碼管與 LED 點陣控制綜合實驗一、實驗目的1、掌握制作驅動程序和加載驅動的過程。2、理解數碼管和LED 點陣的控制程序。3、熟練的運用Plantform Build 5.0和 EVC4.0 。二、實驗內容使用 Plantform Build 5.0 對其數碼管和 LED 點陣的驅動程序進行編譯， 將重新編譯的內核下載到實驗平臺內。再通過 EVC4.0 制作出的圖形界面對數碼管和 LED 點陣進行控制。三、預備知識1、 Plantform Build 5.0和 EVC4.0 軟件的運用。2、內核驅動的制作和加載過程。3、對 C+的編程理解。四、實驗設備及工具硬件： PC一臺 P3 以

2、上， UP-TECH S2410/P270 DVP 實驗箱（包含270 核心板、串口線、并口線、 USB從口線、網線、電源、光盤等）一臺。軟件： PC機操作系統WinXP， EVC4.0 開發環境， WinCE500五、實驗原理及說明數碼管寄存器CPLD 以靜態方式驅動2 個 7 段數碼管，顯示內容和寄存器值對應。默認值 0xFF 熄滅地址 A4A3A2A1=1000（十位）1001 （個位）位76543210定義DPGFEDCBA讀出值與寫入值相同。數碼管各筆畫位置以及數字符號的段碼查其他文檔。物理地址：270 核心板：0x1000 0110 0x1000 0112點陣LED寄存器組CPLD

3、 以動態掃描方式驅動8×8 點陣 LED ，顯示內容和寄存器組值對應。CPLD 內部包含在點陣 LED 上顯示滾動效果的 UPTECH 字樣的代碼，此功能在系統復位后自動運行，在 CPU 首次寫入點陣 LED 寄存器時停止，之后顯示內容由所寫內容決定。點陣 LED 寄存器組共 8 個字節寄存器， 地址 A4A3A2A1= 從 0000 到 0111，按地址遞增順序分別對應點陣 LED 模塊從左到右的 8 個列。每個字節寄存器對應一列，字節寄存器內8 個位對應該列的8 個 LED ，從 Bit0到 Bit7分別對應從上到下的LED 。r01234567eeeeeeeeetttttttt

4、tsyyyyyyyyigBBBBBBBBeRb0b0b0b0b0b0b0b0b1b1b1b1b1b1b1b1b2b2b2b2b2b2b2b2b3b3b3b3b3b3b3b3b4b4b4b4b4b4b4b4b5b5b5b5b5b5b5b5b6b6b6b6b6b6b6b61b7b7b7b7b7b7b7b701010101A:00110011400001111A00000000物理地址：270 核心板：0x1000 0100 、 0x1000 0102、 0x1000 0104 。 0x1000 011E六、實驗步驟(一) 定制并下載操作系統、導出SDK 包1.將自己定制的操作系統文件夾拷貝到C:W

5、INCE500PBWORKSPACE文件夾下2. 在 PB 中打開該工程3. 添加支持 MFC 、的下列組件：CORE OSAPPLICA TIONSAND SERVERC.LIBRARIESANDC+Runtime Support for Exception Handling and Runtime Type InformationCOREAPPLICATIONSANDSERVERC.LIBRARIESANDFullCRuntimeCOREOSAPPLICA TIONSANDSERVERComponentServices(COMandDCOM) Microsoft Foundation Cl

6、asses (MFC)在此先不用編譯和下載(二) 編寫數碼管和點陣驅動程序1、在 Platform Builder 中選擇“File ”->“ New Project or File ”，創建一個“ Windows CE Dynamic link library ”項目，項目的名稱填寫“ ArrayLed ”（如下圖所示）2、按 OK按鈕，其他窗口選擇默認設置。 在 DLL 的類型界面中 （如圖 3-2 所示）選中 A Simple Windows CE DLL projects ， Platform Builder 將生成 DLL 框架代碼。3、在 Platform Builder中修

7、改 ArrayLed.cpp 的 DllMain 函數 .4、對數碼管和LED點陣驅動的程序進行編寫。（紅色為手動增加）驅動代碼如下：/ ArrayLed.cpp : Defines the entry point for the DLL application./#include "stdafx.h"extern "C"VirtualCopy(PVOID,PVOID,DWORD,DWORD);#define COMMAND_INIT0x1#define COMMAND_ARRAYSHOW0x2#define COMMAND_LEDSHOW0x3#def

8、ine COMMAND_LEDOFF0x4#define COMMAND_ARRAYOFF0x5typedef structshort unsigned int led8;LedArray;typedef structshort unsigned int high;short unsigned int low;Led;LedArray *ledarr=NULL;LedArray *temp=NULL;Led *ledshow=NULL;BOOL APIENTRY DllMain( HANDLE hModule,DWORD ul_reason_for_call,LPVOID lpReserved

9、)return TRUE;DWORD LED_Init(DWORD dwContext)int i=0;ledarr = (LedArray *)VirtualAlloc(0, sizeof(LedArray), MEM_RESERVE, PAGE_NOACCESS);if (ledarr = NULL)RETAILMSG(1,(TEXT("For LED : VirtualAlloc failed!rn");return 0;elseif (!VirtualCopy(PVOID)ledarr, (PVOID)(0x10000000>>8), sizeof(Le

10、dArray),PAGE_PHYSICAL|PAGE_READWRITE | PAGE_NOCACHE)RETAILMSG(1,(TEXT("For LED: VirtualCopy failed!rn");return 0;temp=ledarr;temp=(LedArray *)(unsigned char *)ledarr+0x100);ledshow=(Led *)(unsigned char *)ledarr + 0x110);for(i=0;i<8;i+)temp->ledi=0x0;ledshow->high=0xf9;ledshow->

11、;low=0xc0;RETAILMSG(1,(TEXT("For LED: init is ok!rn");return 1;DWORD LED_Open(DWORD hDeviceContext,DWORD AccessCode,DWORD ShareMode)/ LED_Init(hDeviceContext); return 1;DWORD LED_Read(DWORD Handle,LPVOID pBuffer,DWORD dwNumBytes)return 0;BOOL LED_Close(DWORD Handle)/ VirtualFree(ledarr, 0,

12、 MEM_RELEASE); return 1;/LED_CloseBOOL LED_Deinit(DWORD dwContext)return TRUE;DWORD LED_Write(DWORD hOpenContext,LPCVOID pBuffer,DWORD Count)return 0;DWORD LED_Seek(DWORD hOpenContext,long Amount ,DWORD Type)return 0;BOOL LED_IOControl(DWORD hOpenContext,DWORD dwCode ,short unsigned int* pBufIn,DWOR

13、D dwLenIn,PBYTE pBufOut,DWORD dwLenOut,PDWORD pdwActualOut)LedArray *array_show=(LedArray *)pBufIn;/ Led *led_show=(Led *)pBufIn; switch(dwCode)case COMMAND_INIT:RETAILMSG(1,(TEXT("For LED: init CE!rn");temp->led0=0x01;temp->led1=0x02;temp->led2=0x04;temp->led3=0x08;temp->le

14、d4=0x10;temp->led5=0x20;temp->led6=0x40;temp->led7=0x80;ledshow->high=0xf9;ledshow->low=0xa4;break;case COMMAND_ARRAYSHOW:for(int i=0;i<8;i+)temp->ledi=array_show->ledi;break;case COMMAND_LEDSHOW:RETAILMSG(1,(TEXT("For LED: AP use it and valueis %x,%x!rn"),*pBufIn,*

15、(pBufIn+1);ledshow->high=*pBufIn;ledshow->low=*(pBufIn+1);break;case COMMAND_LEDOFF:ledshow->high=0xff;ledshow->low=0xff;break;case COMMAND_ARRAYOFF:for(int i=0;i<8;i+)temp->ledi=0x0;break;default :break;return TRUE;void LED_PowerUp(void);void LED_PowerDown(void);5、展開 Paramter File

16、s，打開導出函數的定義文件ArrayLed.def 。增加內容如下：LIBRARY LEDEXPORTSLED_InitLED_OpenLED_CloseLED_DeinitLED_IOControlLED_ReadLED_WriteLED_Seek6、在 Fileview 中選中 MyDriver工程點擊右鍵， 選擇 “ Build Current Project ”編譯工程， 排除所有錯誤。如下圖所示7、編譯成功后選擇菜單 “Build OS ”->“ Open Build Release Directory ”，然后輸入命令： dumpbin /exports ArrayLed.d

17、ll ，確保驅動接口 DLL 函數被正確導出。8、展開 fileView，修改 Parameter Files選項下的ArrayLed.reg文件，增加如下內容：HKEY_LOCAL_MACHINEDriversBuiltInArrayLed"Prefix"="LED""Dll"="ArrayLed.dll""Index"=dword:1"Order"=dword:1"Ioctl"=dword:19、點擊“ SYSGEN ”重新編譯10、導出針對該平臺的S

18、DK 包11、將新建平臺下載到實驗箱中12、安裝 SDK 包13、通過“ Remote Process Viewer”或超級終端查看驅動是否正確加載(三) 編寫驅動程序測試程序1、打開 EVC4.0 ，新建一個MFC 、基于 Dialog 的工程，注意選擇CPU 型號如下圖2、打開ResourceView 頁，對其圖形的控制界面進行設計，如下圖，該圖形界面分別有兩個“ Group Box ”控件，分別命名為： “ LED ”、“ ArrayLed ”，兩個“ Edit Box ”控件，四個Button 按鍵，分別將其顯示改為如下圖每個按鈕的屬性如下如3、雙擊各個按鍵，針對各個按鍵編程，如下（紅

19、色為手動添加）：void CLEDDlg:OnButton1() /七段數碼管顯示/ TODO: Add your control notification handler code here this->UpdateData();if(hLed=INVALID_HANDLE_VALUE) /打開數碼管設備hLed=CreateFile(TEXT("LED1:"),GENERIC_READGENERIC_WRITE,0,NULL,OPEN_EXISTING,0,0);show_led.high=LedDatam_show/10;/計算七段數碼管高位show_led.l

20、ow=LedDatam_show%10;/ 低位|short unsigned int *temp=(short unsigned int*)(&show_led); DeviceIoControl(hLed,COMMAND_IOCTRL_LED,temp,sizeof(show_led),NULL,NULL,NULL,NULL); /IoControl控制數碼管顯示，傳遞現實參數void CLEDDlg:OnButton2()/關閉七段數碼管/ TODO: Add your control notification handler code here if(hLed=INVALID_

21、HANDLE_VALUE)hLed=CreateFile(TEXT("LED1:"),GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING ,0,0); DeviceIoControl(hLed,COMMAND_IOCTRL_LEDOFF,NULL,NULL,NULL,NULL,NULL,NULL);void CLEDDlg:OnButton3() /點陣數碼管顯示/ TODO: Add your control notification handler code here UpdateData();int i=0,j=0;for(

22、i=0;i<4;i+)show_arrayi=LedLetterm_arrayshow/10i;/ 計算高位for(i=4;i<8;i+)show_arrayi=LedLetterm_arrayshow%10j;/ 計算低位j+;DeviceIoControl(hLed,COMMAND_IOCTRL_ARRAYLED,show_array,sizeof(show_array),NULL,NULL,NULL,NULL); /設備iocontrol控制設備顯示void CLEDDlg:OnButton4() / 關閉點陣數碼管/ TODO: Add your control notif

23、ication handler code hereDeviceIoControl(hLed,COMMAND_IOCTRL_ARRAYOFF,NULL,NULL,NULL,NULL,N ULL,NULL);4、在窗口中右鍵菜單中選擇“ClassWizare”5、如下圖，從左邊選擇“ DestoryWindow ”到右邊，點擊“ ADD Function ” ,并編輯代碼，紅色為手動添加BOOL CLEDDlg:DestroyWindow()/ TODO: Add your specialized code here and/or call the base class CloseHandle(h

24、Led);hLed=INVALID_HANDLE_V ALUE; / 銷毀窗口是關閉 設備句柄return CDialog:DestroyWindow();6、修改 LedDlg.cpp 文件，紅色部分為手動添加/ LEDDlg.cpp : implementation file/#include "stdafx.h" #include "LED.h" #include "LEDDlg.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE =

25、 _FILE_;#endif#define COMMAND_IOCTRL_ARRAYLED2#define COMMAND_IOCTRL_LED3#define COMMAND_IOCTRL_LEDOFF4#define COMMAND_IOCTRL_ARRAYOFF5HANDLE hLed=INV ALID_HANDLE_V ALUE;structshort unsigned int high;short unsigned int low;show_led;/七段數碼管傳送參數shortunsignedLedData=0xc0,0xF9,0xA4,0xB0,0x99 ,0x92,0x82,0

26、xF8,0x80,0x90,0x88 ,0x83,0xC6,0xA1,0x86,0x8E;/ 七段數碼管short unsigned int LedLetter104=/ 點陣數碼管數字字模int0xfe,0x82,0x82,0xfe,0x00,0x00,0x00,0xfe,0xf2,0x92,0x92,0x9e,0x92,0x92,0x92,0xfe,0x1e,0x10,0x10,0xfe,0x9e,0x92,0x92,0xf2,0xfe,0x92,0x92,0xf2,0x02,0x02,0x02,0xfe,0xfe,0x92,0x92,0xfe,0x9e,0x92,0x92,0xfe;sh

27、ort unsigned int show_array8; / 點陣數碼管傳送參數/LedLetter0=0xfe,0x82,0x82,0xfe;/ CLEDDlg dialogCLEDDlg:CLEDDlg(CWnd* pParent /*=NULL*/): CDialog(CLEDDlg:IDD, pParent)/AFX_DATA_INIT(CLEDDlg)m_show = 0;m_arrayshow = 0;/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hI

28、con = AfxGetApp()->LoadIcon(IDR_MAINFRAME);void CLEDDlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CLEDDlg)DDX_Text(pDX, IDC_EDIT1, m_show);DDV_MinMaxInt(pDX, m_show, 0, 99);DDX_Text(pDX, IDC_EDIT2, m_arrayshow);DDV_MinMaxUInt(pDX, m_arrayshow, 0, 99);/AFX_DATA_MA

29、PBEGIN_MESSAGE_MAP(CLEDDlg, CDialog)/AFX_MSG_MAP(CLEDDlg)ON_BN_CLICKED(IDC_BUTTON1, OnButton1)ON_BN_CLICKED(IDC_BUTTON2, OnButton2)ON_BN_CLICKED(IDC_BUTTON3, OnButton3)ON_BN_CLICKED(IDC_BUTTON4, OnButton4)/AFX_MSG_MAPEND_MESSAGE_MAP()/ CLEDDlg message handlersBOOL CLEDDlg:OnInitDialog()CDialog:OnIni

30、tDialog();/ Set the icon for this dialog.The framework does this automatically/ when the application's main window is not a dialogSetIcon(m_hIcon, TRUE);/ Set big iconSetIcon(m_hIcon, FALSE);/ Set small iconCenterWindow(GetDesktopWindow(); / center to the hpc screen/ TODO: Add extra initializati

31、on hereif(hLed=INVALID_HANDLE_VALUE)/打開設備hLed=CreateFile(TEXT("LED1:"),GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,0,0);return TRUE;/ return TRUEunless you set the focus to a control7、修改 LEDDlg.h 文件，紅色字體為手動添加#if !defined(AFX_LEDDLG_H_51CB7AF0_707A_4CC5_982F_7CBA0C2E11C5_INCLUDED_)#define AFX_LEDDLG_H_51CB7AF0_707A_4CC5_982F_7CBA0C2E11