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Fix Wavedrom in Jupyter Notebook #484

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Fix Wavedrom in Jupyter Notebook #484

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9b28b05
Fix Wavedrom in Jupyter Notebook
ryoon Jun 5, 2026
2a89bb0
Remove unused `Javascript` from import
ryoon Jun 5, 2026
5e01e97
Periodically check if WaveDrom is loaded before calling
fdxmw Jun 10, 2026
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33 changes: 18 additions & 15 deletions pyrtl/simulation.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1769,22 +1769,25 @@ def render_trace(

from pyrtl.visualization import trace_to_html

htmlstring = trace_to_html(
self, trace_list=trace_list, sortkey=_trace_sort_key
display(
HTML(
trace_to_html(self, trace_list=trace_list, sortkey=_trace_sort_key)
),
HTML("""
<script src="https://cdnjs.cloudflare.com/ajax/libs/wavedrom/1.6.2/skins/default.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/wavedrom/1.6.2/wavedrom.min.js"></script>
"""),
# Wait for WaveDrom to load, polling every 100ms.
Javascript("""
var interval = setInterval(function() {
if (typeof WaveDrom !== 'undefined' &&
typeof WaveDrom.ProcessAll === 'function') {
clearInterval(interval);
WaveDrom.ProcessAll();
}
}, 100);
"""),
)
html_elem = HTML(htmlstring)
display(html_elem)
# print(htmlstring)
js_stuff = """
$.when(
$.getScript("https://cdnjs.cloudflare.com/ajax/libs/wavedrom/1.6.2/skins/default.js"),
$.getScript("https://cdnjs.cloudflare.com/ajax/libs/wavedrom/1.6.2/wavedrom.min.js"),
$.Deferred(function( deferred ){
$( deferred.resolve );
})).done(function(){
WaveDrom.ProcessAll();
});"""
display(Javascript(js_stuff))
else:
self.render_trace_to_text(
trace_list=trace_list,
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