Hardware Description Languages for FPGA Design

This module introduces the basics of the VHDL language for logic design. It describes the use of VHDL as a design entry method for logic design in FPGAs and ASICs. To provide context, it shows where VHDL is used in the FPGA design flow. Then a simple example, a 4-bit comparator, is used as a first phrase in the language. VHDL rules and syntax are explained, along with statements, identifiers and keywords. Finally, use of simulation as a means of testing VHDL circuit designs is demonstrated using ModelSim, a simulator software tool. Programming assignments are used to develop skills and reinforce the concepts presented.

In this module use of the VHDL language to perform logic design is explored further. Many examples of combinatorial and synchronous logic circuits are presented and explained, including flip-flops, counters, registers, memories, tri-state buffers and finite state machines. Methods of hierarchical design and modular design techniques are explained and demonstrated. How to create test benches is described as a means for design verification. Students are giving ample opportunity to practice and refined their design technique using the programming assignments.

This module introduces the basics of the Verilog language for logic design. It describes the use of Verilog as a design entry method for logic design in FPGAs and ASICs, including the history of Verilog's development. Then a simple example, a 4-bit comparator, is used as a first phrase in the language. Verilog rules and syntax are explained, along with statements, operators and keywords. Finally, use of simulation as a means of testing Verilog circuit designs is demonstrated using ModelSim, a simulator tool. Programming assignments are used to develop skills and reinforce the concepts presented.