FPGA programming is the method of designing and planning software programs that work 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 main goal is to develop a system that can produce the desired output when powered on.
Implementing an FPGA solution requires a lot planning to ensure that all features are in place, and will work correctly. A requirements document that includes all specifications and information can assist in reducing any potential problems in the process of implementation. It is also beneficial to test the design in various stages of the development using tools like Mentor Graphics Questa and Cadence Vivado along with Simulink.
Two programming languages have traditionally contributed to the majority of work involved in FPGA programming: VHDL and Verilog. VHDL has a syntax similar to C which makes it easier to write programs. Verilog has more of a V-like syntax and is deemed more user-friendly by certain.
Typically an FPGA design is implemented as a logic block called a logic cell (LC) or a logic block (LB). It is comprised of common logic functions, such as get more multiplication, subtraction, and addition, in addition to some basic error checks such as the sign or negation of a number value. It also contains lookup tables (LUTs) which store predefined lists of logic outputs that can be used for any combination of inputs.