参数位置改过后，问题解决了否 ：）

tvrc大侠： 不知您的问题解决了吗？我用cvi编程也遇到和老兄类似的问题。 数据采集卡用的是凌华的pci－9118，驱动程序装的是最新4.06版，我所用系统是PIII 500,windows xp,已经把驱动库文件PCI－DASK.dll和头文件DASK.h添加到工程文件中，代码参考pcis－dask code creator。 在调试程序时，编译已经通过，执行程序时，按动虚拟面板按钮，程序没有反应，查看变量，halfready总为0，跳不出do－while循环。我用卡自带的示例对卡作检测是正常的。我把源程序贴给您，烦请大侠百忙之中帮忙看看如何解决，感激不尽！祝工作愉快！ #include <windows.h> #include "easyio.h" #include <cvirte.h> #include <userint.h> #include "13.h" #include "Dask.h" //constants definition 用凌华pci－9118自己所带的code creator 自动生成的 #define CardNumber 0 #define ADChan 0 #define ScanCount 65536 #define SampleRate 8000.0000 //AI config constants definition #define ModeCtrl P9118_AI_BiPolar|P9118_AI_SingEnded #define FunCtrl P9118_AI_DtrgNegative|P9118_AI_EtrgNegative #define BurstNumber 0 #define PostCount 0 //variables definition I16 cardID = -1; I16 err=0; BOOLEAN HalfReady = 0; BOOLEAN fstop; U32 AccessCnt = 0; U32 MemSize = 0; U16 InBuf[65536]; //AI data buffer static int panelHandle; //CVI的主函数 int main (int argc, char *argv[]) { if (InitCVIRTE (0, argv, 0) == 0) return -1; /* out of memory */ if ((panelHandle = LoadPanel (0, "13.uir", PANEL)) < 0) return -1; DisplayPanel (panelHandle); RunUserInterface (); DiscardPanel (panelHandle); return 0; } //CVI面板上的数据采集按钮的回调函数，程序运行时按动该按钮，就驱动数采卡进行采集 int CVICALLBACK Start (int panel, int control, int event, void *callbackData, int eventData1, int eventData2) { switch (event) { case EVENT_COMMIT: cardID = Register_Card(PCI_9118DG, CardNumber); if (cardID<0) { //Error occurs !! //ToDo : Handle error here } err = AI_InitialMemoryAllocated(cardID,&MemSize); if (err!=NoError) { //Error occurs !! //ToDo : Handle error here } if (MemSize*1024 < ScanCount*sizeof(U16) ) { //available memory size for analog input in the device driver //is smaller than the data size specified!! //ToDo : do something here } err = AI_AsyncDblBufferMode(cardID, 1); if (err!=NoError) { //Error occurs !! //ToDo : Handle error here } err=AI_9118_Config(cardID, ModeCtrl, FunCtrl, BurstNumber, PostCount); if (err!=NoError) { //Error occurs !! //ToDo : Handle error here } err=AI_ContReadChannel (cardID, ADChan, AD_B_5_V, InBuf, ScanCount, SampleRate, ASYNCH_OP); if (err!=NoError) { //Error occurs !! //ToDo : Handle error here } do { do { AI_AsyncDblBufferHalfReady (cardID, &HalfReady, &fstop); } while (!HalfReady); 调试程序时，问题出在该处，变量halfReady总为0，程序跳不出do－while循环 //half buffer data is ready for read AI_AsyncDblBufferTransfer (cardID, InBuf); } while (!fstop); err = AI_AsyncClear(cardID, &AccessCnt); if (err!=NoError) { //Error occurs !! //ToDo : Handle error here } Release_Card(cardID); PlotY (panelHandle, PANEL_GRAPH, InBuf, 65536, VAL_DOUBLE, VAL_THIN_LINE, VAL_EMPTY_SQUARE, VAL_SOLID, 1, VAL_RED); break; } return 0; } //cvi 退出运行回调函数 int CVICALLBACK Quit (int panel, int control, int event, void *callbackData, int eventData1, int eventData2) { switch (event) { case EVENT_COMMIT: QuitUserInterface (0); break; } return 0; }