tikz-timing modified characters

Question

I'm trying to recreate the timing diagrams for AHB-lite and APB, but I'm having some issues recreating the "Transient" and "HIGH/LOW to HIGH" timing characters.

Goal

Current Solution

Code

\documentclass{scrartcl}
\usepackage{tikz}
\usepackage{tikz-timing}
\usetikztiminglibrary{either}
\newcommand{\timingaxis}[1][]{%
  \begin{scope}[#1]
  \draw [timing/table/axis] (0,+1) -- (\twidth+1,+1);
  \foreach \n in {0,1,...,\twidth} {
    \draw [timing/table/axis ticks]
        (\n,+1) -- +(0,-.2)
        node [below,inner sep=2pt] {\scalebox{.75}{\tiny\n}};
  }
  \draw [timing/table/axis] (0,-\rowdist\nrows+1.5\rowdist) -- (\twidth+1,-\rowdist\nrows+1.5\rowdist);
  \foreach \n in {0,1,...,\twidth} {
    \draw [timing/table/axis ticks]
        (\n,-\rowdist\nrows+1.5\rowdist) -- +(0,-.2)
        node [below,inner sep=2pt] {\scalebox{.75}{\tiny\n}};
  }
  \end{scope}
}
\tikzset{%
    timing/table/axis/.style={->,>=latex},
    timing/table/axis ticks/.style={},
}
\begin{document}
% Defining foreground (fg) and background (bg) colors
\definecolor{bgblue}{rgb}{0.41961,0.80784,0.80784}%
\definecolor{bgred}{rgb}{1,0.61569,0.61569}%
\definecolor{fgblue}{rgb}{0,0,0.6}%
\definecolor{fgred}{rgb}{0.6,0,0}%
\begin{figure}
    \centering
    \begin{tikztimingtable}[
        timing/coldist=4pt,     % column distance
        xscale=2.05,yscale=1.1, % scale diagrams
        semithick               % set line width
      ]
      \
      HCLK          & 4H 3{4C}  [[timing/slope=0]] H\
      \
      HADDR[31:0]   & 0.2D 0.4U {7.6D{A}} 0.4U {7.6D{B}} 0.4U 0.4D \
      HWRITE        & 0.4H 0.4e 7.7L 0.2E0H 7.7E 0.4U 0.4D \
      HDATA[31:0]   & 0.2D 0.4U 7.6D 5U {3D{Data (A)}} 0.4U 0.4D \
      HREADY        & 0.4H [| timing/e/background/ ={ fill=gray } |]0.2e 7.8H 0.2e 8H 0.2E0H 0.4E \
      \
    \begin{extracode}
      \begin{pgfonlayer}{background}
        \begin{scope}[semitransparent,semithick, loosely dotted]
          \vertlines[red]{0,2,4,...,16}
          \vertlines[blue]{1,3,5,...,16}
        \end{scope}
      \end{pgfonlayer}
        \timingaxis\relax
      \tablerules
      % \begin{pgfonlayer}{background}
      %   \foreach \n in {1,...,8}
      %     \draw [help lines] (A\n) -- (B\n);
      % \end{pgfonlayer}
    \end{extracode}
    \end{tikztimingtable}
    \caption{AHB-Lite Read transfer}
    \label{fig:ahbl1}
\end{figure}
\end{document}

Answer 1

I'm not very familiar with tikz but I'm trying to solve your problem. I think you are close to the goal. All you need is to read the manual, try different ideas, and think more, never give up! Below is what I'm thinking:

1. Looks like some polygons did not fill correctly, just make the timing/e/background/.style={fill=gray} to be global, and now all the polygons fill gray:
2. But the HWRITE row looks strange, after changing to HWRITE& 0.4H 0.4e 7.7L 0.2E 0H 7.7D 0.4U 0.4D look close to our goal. Then read the tikz-timing manual 4.3 Overlays, we use the overlay to cover the strange path， change to HWRITE & 0.4H 0.4e 7.7L 0.2E 0H O{0D} 7.7D 0.4U 0.4D, look worse! But don't worry, since tikz-timing is always under the control of tikz, add an offset to the overlays HWRITE & 0.4H 0.4e 7.7L 0.2E 0H O{[yshift=-3.9]0D} 7.7D{} 0.4U 0.4D:
3. The same way to solve the last row HREADY & 0.4H 0.2e 7.8H 0.2e 8H 0.2E 0L O{[yshift=3.9]0D} 0.4D The final code should be:

\documentclass{scrartcl}
\usepackage{tikz}
\usepackage{tikz-timing}
\usetikztiminglibrary{either}
\newcommand{\timingaxis}[1][]{%
  \begin{scope}[#1]
  \draw [timing/table/axis] (0,+1) -- (\twidth+1,+1);
  \foreach \n in {0,1,...,\twidth} {
    \draw [timing/table/axis ticks]
        (\n,+1) -- +(0,-.2)
        node [below,inner sep=2pt] {\scalebox{.75}{\tiny\n}};
  }
  \draw [timing/table/axis] (0,-\rowdist\nrows+1.5\rowdist) -- (\twidth+1,-\rowdist\nrows+1.5\rowdist);
  \foreach \n in {0,1,...,\twidth} {
    \draw [timing/table/axis ticks]
        (\n,-\rowdist\nrows+1.5\rowdist) -- +(0,-.2)
        node [below,inner sep=2pt] {\scalebox{.75}{\tiny\n}};
  }
  \end{scope}
}
\tikzset{%
    timing/table/axis/.style={->,>=latex},
    timing/table/axis ticks/.style={},
}
\begin{document}
% Defining foreground (fg) and background (bg) colors
\definecolor{bgblue}{rgb}{0.41961,0.80784,0.80784}%
\definecolor{bgred}{rgb}{1,0.61569,0.61569}%
\definecolor{fgblue}{rgb}{0,0,0.6}%
\definecolor{fgred}{rgb}{0.6,0,0}%
\begin{figure}
    \centering
    \begin{tikztimingtable}[
        timing/coldist=4pt,     % column distance
        xscale=2.05,yscale=1.1, % scale diagrams
        semithick,               % set line width
        timing/e/background/.style={fill=gray},
      ]
      \
      HCLK          & 4H 3{4C}  [[timing/slope=0]] H\
      \
      HADDR[31:0]   & 0.2D 0.4U {7.6D{A}} 0.4U {7.6D{B}} 0.4U 0.4D \
      HWRITE        & 0.4H 0.4e 7.7L 0.2E 0H O{[yshift=-3.9]0D} 7.7D{} 0.4U 0.4D \
      HDATA[31:0]   & 0.2D 0.4U 7.6D 5U {3D{Data (A)}} 0.4U 0.4D \
      HREADY        & 0.4H 0.2e 7.8H 0.2e 8H 0.2E 0L O{[yshift=3.9]0D} 0.4D\
      \
    \begin{extracode}
      \begin{pgfonlayer}{background}
        \begin{scope}[semitransparent,semithick, loosely dotted]
          \vertlines[red]{0,2,4,...,16}
          \vertlines[blue]{1,3,5,...,16}
        \end{scope}
      \end{pgfonlayer}
        \timingaxis\relax
      \tablerules
      % \begin{pgfonlayer}{background}
      %   \foreach \n in {1,...,8}
      %     \draw [help lines] (A\n) -- (B\n);
      % \end{pgfonlayer}
    \end{extracode}
    \end{tikztimingtable}
    \caption{AHB-Lite Read transfer}
    \label{fig:ahbl1}
\end{figure}
\end{document}