use AO0 generate nagetive pulse-train

[zhuaidao]

hi , i have a board pcie6321 ,and i want to generate nagetive pulse-train,such as the -5v square wave ,here is my code ,but it dosen't work ,it seems that the wave just have -500mv,how can I do to accomplish it?

[恩艾仪器]

Hi,

      For Win7,you can find VC examples "C:\Users\Public\Documents\National Instruments\NI-DAQ\Examples\DAQmx ANSI C\Analog Out\Generate Voltage\Volt Update\"