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diff --git a/tex/model-hardware.tex b/tex/model-hardware.tex new file mode 100644 index 0000000..df0a220 --- /dev/null +++ b/tex/model-hardware.tex @@ -0,0 +1,184 @@ +\section{Development model} +The workflow for the development is show in figure +\ref{fig:gajski-kuhn-ychart}. In the Gajski-Kuhn Y-model has 3 axis for the +perspectives of the product. It is typical to start from the behavioral axis, +by treating the systems as a black-box, and then to jump back and forth between +the other axis while gravitating towards the origin (project goal). +\begin{figure}[h] + \centering + \resizebox{\linewidth}{!}{ + \begin{tikzpicture}[ + font=\ttfamily, + ] + \draw[gray] node[ + circle, + fill = gray, + minimum size = 2mm, + outer sep = 0, + inner sep = 0, + ] (O) at (0,0) {}; + + \foreach \r/\desc in { + 1/{Electrical}, + 2/{Logic gates}, + 3/{Register transfer}, + 4/{Architecture}, + 5/{System} + }{ + \draw[gray, dashed] (O) circle (\r); + \draw[gray] (90:\r) + node[ + above = 1mm, + align = center, + font = \small\ttfamily, + fill = white, + ] {\desc}; + } + + \draw[red, thick] (O) to ++(30:6) + node[ + above = 3mm, + align = center, + text width = 2cm + ] {\textbf{Structural Perspective}}; + \foreach \r/\desc in { + 1/{Transistors, Wires}, + 2/{Gates, Latches, Flip-Flops}, + 3/{ALUs, Registers, Memories}, + 4/{Subblocks}, + 5/{Top blocks, I/O} + } { + \draw[red] (30:\r) + node[ + circle, minimum size = 2mm, + fill = red, + outer sep = 0, + inner sep = 0 + ] {} + node[ + below right = 2mm, + align = left, + font = \small\ttfamily, + fill = white, + ] {\desc}; + } + + \draw[blue, thick] (O) to ++(150:6) + node[ + above = 3mm, + align = center, + text width = 2cm + ] {\textbf{Behavioral Perspective}}; + \foreach \r/\desc in { + 1/{Transfer functions}, + 2/{Truth tables, State graphs}, + 3/{Data moves and operations}, + 4/{Subtasks}, + 5/{Algorithm} + } { + \draw[blue] (150:\r) + node[ + circle, minimum size = 2mm, + fill = blue, + outer sep = 0, + inner sep = 0 + ] {} + node[ + below left = 2mm, + align = right, + font = \small\ttfamily, + fill = white, + ] {\desc}; + } + + \draw[green!60!black, thick] (O) to ++(270:6) + node[ + below = 3mm, + align = center, + text width = 2cm + ] {\textbf{Physical Perspective}}; + \foreach \r/\desc in { + 1/{Mask polygons, Detailed layout}, + 2/{Standard cells, Macro cells}, + 3/{Placement and routing}, + 4/{Floorplan partitioning}, + 5/{Chip or board} + } { + \draw[green!60!black] (270:\r) + node[ + circle, minimum size = 2mm, + fill = green!60!black, + outer sep = 0, + inner sep = 0 + ] {} + node[ + right = 2mm, + align = left, + font = \small\ttfamily, + fill = white, + ] {\desc}; + } + + \end{tikzpicture} + } + \caption{ + Gajski-Kuhn Y-chart. + \label{fig:gajski-kuhn-ychart} + } +\end{figure} + +%% TODO: finish picture +\iffalse +Figure \ref{fig:asic-design-flow} shows a typical flow diagram of how an ASIC device +is designed. +\begin{figure}[h] + \begin{tikzpicture}[ + scale = .7, + font = \small\ttfamily, + bubble/.style = { + rectangle, + draw = black, thick, + fill = lightgray!10, + align = center, + text width = 2.1cm, + rounded corners = 5pt, + }, + box/.style = { + rectangle, + draw = black, thick, + fill = lightgray!10, + align = center, + text width = 2.1cm, + }, + lib/.style = { + rectangle, + draw = black, gray, thick, dashed, + fill = lightgray!10, + align = center, + text width = 2.1cm, + }, + ghost/.style = { + outer sep = 0, + inner sep = 0, + } + ] + \matrix[row sep = 5mm, column sep = 5mm]{ + \node[bubble] (dd) {Design Description}; & & \node[bubble] (tbd) {Testbench Description}; \\ + \node[ghost] (A) {}; & \node[box] (fs) {Functional Simulation}; \\ + \node[box] (so) {Synthesis \& Optimization}; & \node[lib] (se) {Standard Elements}; \\ + \node[ghost] (lineA) {}; & & \node[ghost] (lineB) {}; \\ + \node[box] (tm) {Technology Mapping}; \\ + \node[box] (ts) {Test Synthesis}; \\ + \node[bubble] (gates) {}; & \node[box] (pres) {Prelayout Simulation}; \\ + \node[box] (l) {Layout}; & \node[box] (posts) {Postlayout Simulation}; \\ + \node[bubble] (design) {}; & & \node[lib] {Technology Library}; \\ + }; + \end{tikzpicture} + \caption{ + Design flow for an ASIC device. + \label{fig:asic-design-flow} + } +\end{figure} +\fi + +% \section{Hardware} |