Writing the Register-Transfer Level (RTL) description of the circuit.
The primary design software for Intel (formerly Altera) FPGAs, such as the Cyclone and Stratix families. modern digital designs with eda vhdl and fpga pdf link
Instead of simulation, formal methods mathematically prove that a design meets its specification. Tools like SymbiYosys (open-source) and Questa Formal are gaining traction. Writing the Register-Transfer Level (RTL) description of the
Modern FPGAs often include "Hard IP" blocks—pre-integrated components like ARM processors, high-speed transceivers, and dedicated DSP slices—creating a hybrid environment known as a Programmable SoC. The Integrated Design Cycle which is permanently hardwired during manufacturing
The Field Programmable Gate Array (FPGA) is the physical silicon that brings VHDL code to life. Unlike an Application-Specific Integrated Circuit (ASIC), which is permanently hardwired during manufacturing, an FPGA can be reprogrammed indefinitely.