FPGA programming is the process of preparing and creating a software program that works with an exact hardware circuit. It is a hardware-programmable technology that uses the combination of logic gates and memory blocks to undertake computing tasks. The goal is to develop a system that produces the desired output when powered on.
Implementing an FPGA solution requires a lot planning to ensure that all features are included, and will work correctly. A requirements document field programmable gate arrays that includes all specifications and details can help in reducing potential issues with the implementation process. It is also an excellent idea to model the design at different stages of development using tools such as Mentor Graphics Questa and Cadence Vivado along with Simulink.
VHDL and Verilog have traditionally been the two most popular programming languages used for FPGA programming. VHDL is similar to C and has a syntax more conducive to writing programs. Verilog is more like V and some find it easier to use.
Typically, an FPGA design is implemented as a logic block known as a logic cell (LC) or a logic block (LB). It is a logic block that has standard functions like multiplication, addition and subtraction with some basic error checking like the negation and sign of numbers. It also includes lookup tables (LUTs) that contain predefined lists of logic outputs that can be used for any combination of inputs.