The attached zip file has the three files required to run the demo on a RedPItaya running pynq.

It wors like this:  Read from ADC1.  Send bits to two paths.  Add offset_1 and send to DAC1 and add offset_2 and send to DAC2

The notebook demonstrates how to run it, and how to set the offset values.

I tested it by inputting a square pulse and measure a latency of 10 uSec.