On: How Does an FPGA Work?

[JohnFen]

Yes, I'm working on a Xilinx ARM processor with an FPGA. The FPGA and the CPU are independent units in the chip that can each operate with or without the other. We can indeed reprogram the FPGA without taking the system down.

[davemp → JohnFen]

It goes even further. You can partially reconfigure the FPGA fabric itself: https://support.xilinx.com/s/article/34924?language=en_US

[MSFT_Edging → davemp]

That's what I was referring to. Neat stuff.