ADC-dirver.rar_2410 wince ad_adc wince_wince ad转换_wince spi_

/********************************************************** * * 文件名: ADC.c * 功能: IO 口驱动相关函数实现 * 作者: Z.C.F **********************************************************/ #include "windows.h" #include "s2410.h" #include "Windev.h" //---------------------------------------------------------- //宏定义 //---------------------------------------------------------- #define IOCTL_SET_UP \ CTL_CODE(FILE_DEVICE_UNKNOWN, 0x802, METHOD_BUFFERED, FILE_ANY_ACCESS) HINSTANCE hInst; //--------------------------------------------------------- //全局变量 //--------------------------------------------------------- /********************************************************** * 函数名: DLLEntry * 功能: DLL入口函数 * 主要屏蔽了一些加载卸载信息 * 输入参数: * hinstDll: DLL句柄 * DwReason: 挂载状态 * lpReserved: 保留 * 输出参数: * TURE: 挂载成功 **********************************************************/ BOOL DllEntry( HINSTANCE hinstDll, /*@parm Instance pointer. */ DWORD dwReason, /*@parm Reason routine is called. */ LPVOID lpReserved /*@parm system parameter. */ ) { hInst=hinstDll; if ( dwReason == DLL_PROCESS_ATTACH ) { DisableThreadLibraryCalls((HMODULE) hinstDll); RETAILMSG(1,(TEXT("ADC DLL ATTACHED!\r\n"))); } if ( dwReason == DLL_PROCESS_DETACH ) { RETAILMSG(1,(TEXT("ADC DLL DETACHED!\r\n"))); } return(TRUE); } /********************************************************* * 函数名: ADC_Init * 功能: * 输入参数:dwcontext * 输出参数: 无 * 返回值: 返回ADC设备句柄 *********************************************************/ HANDLE ADC_Init(DWORD dwcontext) { volatile ADCreg *pADCIOreg; pADCIOreg = NULL; RETAILMSG( 1, (TEXT("Initialing pADCIOreg!\r\n"))); //分配空间 pADCIOreg = ( ADCreg * )VirtualAlloc( 0, sizeof(ADCreg), MEM_RESERVE, PAGE_NOACCESS ); if( !pADCIOreg ) { RETAILMSG( 1, (TEXT("Unable to alloc memory for ADCIOreg!\r\n"))); return NULL; } if( !VirtualCopy((PVOID)pADCIOreg, (PVOID)(ADC_BASE), sizeof(ADCreg), PAGE_READWRITE | PAGE_NOCACHE )) { RETAILMSG(1, (TEXT("For ADCIOreg, virtual copy failed!\r\n"))); return NULL; } return pADCIOreg; } /***************************************************************** * 函数名 : ADC_Deinit * 功能 : * 输入参数: dwcontext: * 输出参数: * 返回值 : ******************************************************************/ BOOL ADC_Deinit(volatile ADCreg* dwcontext) { if (!dwcontext) { SetLastError(ERROR_INVALID_HANDLE); return(FALSE); } LocalFree(dwcontext); return(TRUE); } /********************************************************* * 函数名: ADC_Open * 功能: 打开设备 * 输入参数: * dwcontext: * dwaccess: * dwshare: * 输出参数: 无 * 返回值: 返回打开的ADC设备句柄 *********************************************************/ HANDLE ADC_Open(volatile ADCreg *dwcontext,DWORD dwaccess,DWORD dwshare) { //WORD temp; RETAILMSG(1, (TEXT("adc, open ADCIOreg\r\n"))); //RETAILMSG( 1, (TEXT("rADCCON = %x\r\n"), hDeviceContext->pADCregs->rADCCON)); //RETAILMSG( 1, (TEXT("AccessCode = %x, ShareMode = %x, DM61xIO = %x\r\n"), AccessCode, ShareMode, hDeviceContext)); return dwcontext; } /***************************************************************** * 函数名 : ADC_Close * 功能 : * 输入参数: * dwopen: * 输出参数: * 返回值 : ******************************************************************/ BOOL ADC_Close(volatile ADCreg* dwopen) { if ( !dwopen ) { SetLastError(ERROR_INVALID_HANDLE); return(FALSE); } return(TRUE); } /********************************************************* * 函数名: ADC_Read * 功能: 打开设备 * 输入参数: * dwopen: * pBuffer: * dwcount: * 输出参数: 读缓存 * 返回值: * 0表示文件末 * 1表示错误 * 返回读取的字节数表示成功 *********************************************************/ ULONG ADC_Read(volatile ADCreg *dwopen,LPVOID pbuffer,DWORD dwcount) { return 0; } /********************************************************* * 函数名: ADC_Write * 功能: 打开设备 * 输入参数: * dwopen: * pBuffer: * dwcount: * 输出参数: * 返回值: *********************************************************/ ULONG ADC_Write(volatile ADCreg *dwopen, LPCVOID pbuffer, DWORD dwcount ) { return 0; } /***************************************************************** * 函数名 : ADC_Seek * 功能 : * 输入参数: * hOpenContext: * Amount: * Type : * 输出参数: * 返回值 : ******************************************************************/ ULONG ADC_Seek( DWORD hOpenContext, long Amount, WORD Type ) { return 0; } /***************************************************************** * 函数名 : ADC_IOControl * 功能 : * 输入参数: * hOpenDM61xIOreg: * dwCode: * pBufIn : * dwLenIn : * pBufOut: * dwLenOut : * pdwActualOut : * 输出参数: * 返回值 : ******************************************************************/ BOOL ADC_IOControl(volatile ADCreg* pADCIOreg,DWORD dwCode,PBYTE pBufIn,DWORD dwLenIn, PBYTE pBufOut,DWORD dwLenOut,PDWORD pdwActualOut ) { int iDigiValue = 0; if(pADCIOreg == INVALID_HANDLE_VALUE) { RETAILMSG(1, (TEXT("Invalid handle!\r\n"))); return FALSE; } switch(dwCode) { case IOCTL_SET_UP: iDigiValue = Read_Adc( pADCIOreg,*pBufIn); *( int* )pBufOut = iDigiValue; } RETAILMSG(1, (TEXT("adc, read after.\r\n"))); return TRUE; } /***************************************************************** * 函数名 : ADC_PowerUp * 功能 : 打开电源 * 输入参数: * pHead * 输出参数: * 返回值 : ******************************************************************/ void ADC_PowerUp(volatile ADCreg *pHead) /*@parm Handle to device. */ { } /***************************************************************** * 函数名 : ADC_PowerDown * 功能 : 关闭电源 * 输入参数: * pHead * 输出参数: * 返回值 : ******************************************************************/ void ADC_PowerDown(volatile ADCreg *pHead) /*@parm Handle to device. */ { } // config the adc registers and read the digital data int Read_Adc( volatile ADCreg* pADCIOreg,int ch ) { RETAILMSG(1, (TEXT("channel:%d\r\n")),ch); pADCIOreg->rADCCON = (1<<14)|(ch<<3)|(19<<6); // setup channel //pADCIOreg->rADCCON |= 0<<3; // setup channel pADCIOreg->rADCCON |= 0x1; // start adc while(pADCIOreg->rADCCON & 0x1); //check if Enable_start is low while(!(pADCIOreg->rADCCON & 0x8000)); //check if End of Conversion flag is high return ( (int)pADCIOreg->rADCDAT0 & 0x3ff ); //return the digital value } /* void Test_Adc(PBYTE pBufOut) { int i,key; int a0=0; //Initialize variables key=1; preScaler = ADC_FREQ; preScaler = PCLK/ADC_FREQ -1; //PCLK:50.7MHz if (key == 0) { for(i=0;i<REQCNT;i++) //May 08, 2002 SOP { a0=ReadAdc(0); } } else if(key == 1) { for(i=0;i<REQCNT;i++) // ? { a0=ReadAdc(0); } } // read digital data to buffer *(WORD*)pBufOut++ = a0; rADCCON=(0<<14)|(19<<6)|(7<<3)|(1<<2); //stand by mode to reduce power consumption } int ReadAdc(int ch) { int i; static int prevCh=-1; rADCCON = (1<<14)|(preScaler<<6)|(ch<<3); //setup channel if(prevCh!=ch) { rADCCON = (1<<14)|(preScaler<<6)|(ch<<3); //setup channel