tikz-timing package gives up on path after 25 clock cycles

Question

I'm using the tikz-timing package to do some timing diagrams, but it seems that it has an upper limit of 25 clock cycles.

While

\documentclass[a4paper]{article}
\usepackage{tikz-timing}
\begin{document}

\begin{tikztimingtable}
 clk          &  50{C} \\
 temp &   25{HL}  \\
\end{tikztimingtable}%
\end{document}

works just fine, but if I change to

\documentclass[a4paper]{article}
\usepackage{tikz-timing}
\begin{document}

\begin{tikztimingtable}
 clk          &  51{C} \\
 temp &   25{HL}  \\
\end{tikztimingtable}%
\end{document}

I get a "giving up on this path. did you forget a semicolon?" error. Anybody know how to do longer timing diagrams?

Answer 1

I'm the author of tikz-timing. This error happens when TikZ, which is internally used by tikz-timing, has to expand too many macros before finding the semicolon. The maximal number of macro expansions got reduced with PGF/TikZ v2.00 which causes trouble with tikz-timing which needs sometimes a lot of expansions, especially for longer signals (even if these can be written quite short).

To overcome this issue I changed tikz-timing in v0.7b to locally increase the maximum numbers of macro expansions inside the internal TikZ command to the original used value. Therefore an package update should fix this issue as already stated in the comments by others.

As a workaround you can ensure that the internal TikZ path is never too long by adding ; into your tikz-timing line. This characters closes the internal TikZ-path at this point (like ; does in TikZ). So, try 50{C};50{C} instead of 100{C} for example.