unit1.cpp

赛普拉斯的USB芯片CY7C68013的上位机驱动程序

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"

#include "CyAPI.h"

#include <math.h>

CCyUSBDevice *FX2Device;





void __fastcall FindFX2(void);


//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
   //bArrival  = false;
   //AppDir    = ExtractFileDir(Application->ExeName);

   FX2Device = new CCyUSBDevice(Handle);
   FindFX2();
}
//---------------------------------------------------------------------------
void __fastcall FindFX2(void)
{
    // Disable as if no device found
    int devices = FX2Device->DeviceCount();
    if (devices == 0)
    {
        return;    //找不到设备
    }
    //Form1->Edit1->Text = VID;
    int d = 0;
    int VID = 0;
    while ((d < devices ) && (VID != 0x0547))
    {
        FX2Device->Open(d);
        if (!FX2Device->IsOpen())
        {                               // Try a reset
            FX2Device->Reset();
            Sleep(1000);
            FX2Device->Open(d);
        }
        VID = FX2Device->VendorID;
        d++;
    }

    if (FX2Device->IsOpen())
    {
        if (VID == 0x0547)
        {
            // All the control transfers use REQ_VENDOR and TGT_DEVICE
            FX2Device->ControlEndPt->ReqType = REQ_VENDOR;
            FX2Device->ControlEndPt->Target = TGT_DEVICE;
            Form1->Edit1->Text = FX2Device->ProductID;
        }
    }
    
    //throw Exception("No USB Devices connected.");



}

void __fastcall ResetFX2(UCHAR ucStop)
{
  if (!FX2Device->IsOpen()) throw Exception("No USB Devices connected.");

  FX2Device->ControlEndPt->ReqCode = 0xA0;
  FX2Device->ControlEndPt->Value = 0xE600;
  FX2Device->ControlEndPt->Index = 0;

  long len = 1;
  FX2Device->ControlEndPt->Write(&ucStop,len);
}






void __fastcall TForm1::Button1Click(TObject *Sender)
{

   
    CCyBulkEndPoint *BulkInEpt = NULL;
    CCyBulkEndPoint  *BulkOutEpt = NULL;

    int  eptCount = FX2Device->EndPointCount();
    Form1->Edit1->Text = eptCount;
    for  (int  i=1; i<eptCount;  i++)
    {
        bool  bIn = FX2Device->EndPoints[i]->Address  & 0x80;
        bool  bBulk =  (FX2Device->EndPoints[i]->Attributes == 2);
        if (bBulk  && bIn) BulkInEpt = (CCyBulkEndPoint *) FX2Device->EndPoints[i];
        if  (bBulk && !bIn) BulkOutEpt = (CCyBulkEndPoint *) FX2Device->EndPoints[i];
        //Form1->Edit1->Text = i;
    }

     /**/







    
    /*   */
    OVERLAPPED outOvLap, inOvLap;
    outOvLap.hEvent  = CreateEvent(NULL, false, false,"CYUSB_OUT");
    //inOvLap.hEvent   = CreateEvent(NULL, false, false,"CYUSB_IN");
    char  inBuf[128];
    ZeroMemory(inBuf,  128);
    char buffer[128];
    LONG  length = 128;


    // Just to  be cute, request the return data bef
    UCHAR  *inContext;
    //inContext = FX2Device->BulkInEndPt->BeginDataXfer(inBuf,length,&inOvLap);
    UCHAR  *outContext = FX2Device->BulkOutEndPt->BeginDataXfer(buffer,length,&outOvLap);
    FX2Device->BulkOutEndPt->WaitForXfer(&outOvLap,100);
    //FX2Device->BulkInEndPt->WaitForXfer(&inOvLap,100);
    FX2Device->BulkOutEndPt->FinishDataXfer(buffer,length,&outOvLap,outContext);
    //FX2Device->BulkInEndPt->FinishDataXfer(inBuf,length,&outOvLap,outContext);
    CloseHandle(outOvLap.hEvent);
    //CloseHandle(inOvLap.hEvent);
    Form1->Edit1->Text = eptCount;

    ShowMessage("ok");
    
}
//---------------------------------------------------------------------------