Synthesis vs Simulation in VHDL

Simulation in VHDL: It describes the behaviour of the circuit in terms of input signals, the output signals, knowledge of delays. The behaviour described in terms of occurrences of events and waveforms on signals. In this mode, design description is compiled and simulated and the results are evaluated. Simulation process in VHDL is based on

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VHDL Modelling Styles: Behavioral, Dataflow, Structural

An architecture can be written in one of three basic coding styles: (1) Dataflow (2) Behavioral (3) Structural. The difference between these styles is based on the type of concurrent statements used: A dataflow architecture uses only concurrent signal assignment statements. A behavioral architecture uses only process statements. A structural architecture uses only component instantiation

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