ADALM2000 dac push function cause reset

[xingzhan2012]

I use ADALM2000 to drive galvanometer, it seems that the dac will output zero value, then output what I pushed value after I call push function to send some value to it's DAC output-channel. So, it will cause galvanometer shaking. Another issue is that push function of analog-out-put is too slow in python program. I wander that is there any way to avoid this? Maybe you can repair that problem. thanks!