how to generate an arbitrary digital waveform using PXI6259

[loster]

Hi, all,

    I want using the PXI6259 I/O to generate an arbitrary digital waveform. but don't know how to generate it. does any one has such labview VI examples or have done it before?

for example:500ns ----low

                    400ns-----high

                    900ns-----low

                    600ns-----high

                    1200ns---low

the min pulse width is 400ns.

very thanks for your help