LaTeX tikz-timing - adjust fontsize independently for each row label

Question

I would like to be able to make the label below (which I have made red) have text size equivalent to \tiny but I can not figure out how to do it? I have not been able to find anyone else trying to change the label text size with tikz-timing; is it a PGF or tikz problem?

What is the syntax? I fear this is going to be an obvious misunderstanding of LaTeX, PGF, TikZ, and tikz-timing. I am a little confused which syntax to use when setting the style of the label.

I don't want to apply the changes to all labels as discussed in the following question: How can I change the font family in pgfplots?

Here is what I am starting with:

\begin{tikztimingtable}
  Clock 128\,MHz 0\degr    & H   12{2C} G \\ % ends with edge
  \color{red} Clock 128\,MHz 90\degr   & [C] 12{2C} C \\ % starts with edge
  Clock 128\,MHz 180\degr  & C   12{2C} G \\ % ends with edge
  Clock 128\,MHz 270\degr  &     12{2C} C \\
\end{tikztimingtable}

Attempted variations that do not work

  \color{red} Clock 128\,MHz 90\degr   & [C] 12{2C} C
  \color{red} \tiny Clock 128\,MHz 90\degr   & [C] 12{2C} C
  \color{red} \tiny{Clock 128\,MHz 90\degr}   & [C] 12{2C} C
  \tikzset{every axis label/.append style={font=\sffamily\footnotesize}}
      \color{red} Clock 128\,MHz 90\degr}   & [C] 12{2C} C
  \color{red} [font=\sffamily\footnotesize}] Clock 128\,MHz 90\degr}   & [C] 12{2C} C 
  \tikzset{every node/.append style={scale=0.3}}
      \color{red} Clock 128\,MHz 90\degr}   & [C] 12{2C} C

Edit

The following code is what breaks, I am trying to make it a standalone document class; type article works as you observed.

\documentclass[class=minimal,border=10pt]{standalone} %breaks on \tiny
  % Error|line 15|!Undefined sequence.<argument> \tinyClock\tiny Clock & [C] 12{2C} C\\
%\documentclass{article} % works with \tiny
%
\usepackage{tikz-timing}
% 
%
\begin{document}
%
\begin{tikztimingtable}
  Clock & H   12{2C} G \\
  \tiny Clock  & [C] 12{2C} C \\
  Clock & C   12{2C} G \\
  Clock &     12{2C} C \\
\end{tikztimingtable}
%
\end{document}

Answer 1

Please always post a complete, compilable but minimal example document which produces the issue you have. Code snippets are usually not very useful.

Usually simply adding \tiny should do the trick. The following minimal example works fine for me. I think some other setting in your document causes the problem. Create a copy and minimise your document in order to localise your problem. See I've just been asked to write a minimal example, what is that? for further details.

\documentclass{article}

\usepackage{tikz-timing}

\newcommand{\degr}{degr}

\begin{document}

\begin{tikztimingtable}
  Clock 128\,MHz 0\degr    & H   12{2C} G \\ % ends with edge
  \color{red}\tiny Clock 128\,MHz 90\degr   & [C] 12{2C} C \\ % starts with edge
  Clock 128\,MHz 180\degr  & C   12{2C} G \\ % ends with edge
  Clock 128\,MHz 270\degr  &     12{2C} C \\
\end{tikztimingtable}

\end{document}

---

Update

The minimal class you are using doesn't define \tiny at all. Note that minimal isn't a real class, just a really minimal set required to get a LaTeX document compiled. Please see the posts Why should the minimal class be avoided? for more details. There are some which consider minimal a good choice for standalone document (What is the advantage of using minimal over article when creating a standalone graphic?), but I had my good reason to use article as default class for it (I'm the author of standalone, and also tikz-timing). Simply do not use the minimal class. It's not intended for minimal documents or example and will cause problems with otherwise normal macros. See Why does the following code not compile? (tikz and scope) for a further example of such problems.