Create a stair step function

[Landauer]

I need to create a stair step analog function to control a galvonometer.  I am trying to scan a small chip with a laser.  I have one galvo to move side to side and one to move down the chip.  I currently use a triangle wave on a rising slope but this causes the system to zig-zag across the chip.  I would much rather have the side to side galvo scan straight across the chip.

[devchander]

Are you using a DAQ card to generate this 'stair step' analog function??

[Landauer]

We use a PCI-6229 with NI-DAQmx 8.3 to control the galvonometers.

[Raajit_Lall]

Hello Landauer,

Could you please elaborate as to how you are using the PCI-6229 to achieve this and why it is a problem to have the "side to side galvanometer" scan straight across the chip.

Thank you,

Raajit Lall

Applications Engineer

National Instruments

[devchander]

Also do post the vi that you are using