public static int GetAcquisition(this ISmartScopeHardwareUsb usb, byte[] buffer)
{
usb.GetData(buffer, 0, Constants.SZ_HDR);
GCHandle handle = GCHandle.Alloc(buffer, GCHandleType.Pinned);
SmartScopeHeader hdr = (SmartScopeHeader)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(SmartScopeHeader));
handle.Free();
if (!hdr.IsValid())
{
Logger.Error("Invalid header magic");
return(0);
}
if (hdr.flags.HasFlag(HeaderFlags.TimedOut))
{
return(Constants.SZ_HDR);
}
if (hdr.flags.HasFlag(HeaderFlags.IsOverview))
{
usb.GetData(buffer, Constants.SZ_HDR, Constants.SZ_OVERVIEW);
return(Constants.SZ_HDR + Constants.SZ_OVERVIEW);
}
if (hdr.n_bursts == 0)
{
throw new ScopeIOException("number of bursts in this USB pacakge is 0, cannot fetch");
}
int len = hdr.n_bursts * hdr.bytes_per_burst;
usb.GetData(buffer, Constants.SZ_HDR, len);
return(Constants.SZ_HDR + len);
}
public SmartScopeInterfaceUsb(ISmartScopeHardwareUsb hwInterface)
{
this.usb = hwInterface;
}
