https://madoc.bib.uni-mannheim.de/809/ is one of a gazillion papers you can find with ancient technology called web search.

It was ten years ago I worked on an oscilloscope for CERN with FPGA trigger. You were able to update the trigger portion of the bitstream at any time, without a reset. Typically that was a FIR filter but it could be anything.

Like anything else, once you work with a system, it gives you ten ideas where to go next...

It doesn't say LLM anywhere.