Verilog Procedural Interface

<p>The Verilog Procedural Interface (VPI), originally known as PLI 2.0, is an interface primarily intended for the <a href="/facts/C_(programming_language)/Ky2No763">C</a> <a href="/facts/Programming_language/cWTYbgWa">programming language</a>. It allows behavioral <a href="/facts/Verilog/efVqbKXg">Verilog</a> code to invoke C functions, and C functions to invoke standard Verilog system tasks. The Verilog Procedural Interface is part of the <a href="/facts/IEEE_1364/efVqbKXg">IEEE 1364</a> Programming Language Interface standard; the most recent edition of the standard is from 2005. VPI is sometimes also referred to as PLI 2, since it replaces the <a href="/facts/Deprecated/1aQL7rnP">deprecated</a> <a href="/facts/Verilog/efVqbKXg">Program Language Interface (PLI)</a>.
</p><p>While PLI 1 was deprecated in favor of VPI (aka. PLI 2), PLI 1 is still commonly used over VPI due to its much more widely documented tf_put, tf_get function interface that is described in many verilog reference books.
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Verilog Procedural Interface open-in-new

Verilog Procedural Interface