用NI公司的PCI6025E这块板卡做一个信号发生器遇到的难题

wzyhqu

我现在正在用NI公司的PCI6025E这块板卡做一个信号发生器，要求达到频率1.5K以上，但是我在用输出模块时运行会出现10843的错误信息。我去NI网站他说是：PCI6025E这块卡doesn't have a FIFO buffer for AO operations。并且解决的方法是：Another solution would be to force the device to use Direct Memory Access (DMA) for analog output operations. This can be done by using Set DAQ Device Information.vi, which can be found in the Functions Pallette under the Data Acquisition » Calibration and Configuration sub-pallette. DMA's allow data to be moved from one location to another in a computer without intervention from the CPU. Before using this option, make sure that the device can support DMA operations and has DMA's available for use. This information should be listed under Appendix A of the User Manual of the device.
<>我想请你帮忙，我该怎么运用DMA来解决这块难题.</P>

vi123

不是叫你用set daq device informaition.vi么

wzyhqu

但是，这个都不知道怎么用，从来没有看见过关于这个方面的问题