high speed aquisition

[huangwu]

Now I'm going to develop a device driver in win2K for LV system,which can control a PCI Mutilfunction board(AD,DA,DIO,C/T).We  already have developed a driver in win DDK,and it works good. 

It's seems that there are many way roading to the aim,but what I should choose?

Now I have the follow thoughts:

1.Using VISA

2.Using C++ to call the APIs in the windows drivers.And then using VIs to call the APIs gernerated in C++.Maybe I should call the APIs directly from the windows drivers,but how can I use a pointer and receive datas that posted by the drivers.In this way ,the aquisition datas was copied for so many times and obvios not good for performce.

The driver should work in a high speed condition(eg.16bitsX1M),especialy in datas delivering.And then ,we should think about  the developing time(TTM).

Who will give me some advices about these?Or another better way?

Thanks a lot .