Re: [9fans] OT: hard realtime, timing diagram GUI.

["Steve Simon" <steve@quintile.net>]

> I don't understand why realtime matters.

Only that such diagrams are more important in realtime systems.

> How do you want these events represented on the timing diagram?

I suspose a clock line, left to right, at the top.

events appear as signals, one below the other running paralle to the clock line.
These  change state on a rising edge of a clock, and a different coloured bezier curve
(with optional label) links an event to any events it triggers.

allow me to colour signals so interrupts and clock are clearly different
and add labels to signals and I would be happy.

The idea is this diagram would be built by a cron job from regression tests every night
and if the timings drifted in the system it should be quite easy to see where the time
has been wasted.

Alternatively A GUI interface could be used - this might have advantages (cursors?)
but really a PDF and page(1) would probably do.

Somthing like graphviz for timing diagrammes.

-Steve