March 2002
Intermediate to advanced
432 pages
9h
English
Content preview from Embedded Linux®: Hardware, Software, and Interfacing
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Implementing the Race Timer
After the Project Trailblazer engineers resolve the average interrupt latency question, they can design the race timer. All the Project Trailblazer target boards have the input/output (I/O) and speed capability to act as the race timer. For this design, the engineers decide to use the MZ104 as the controller. Figure 11.7 shows a schematic of the race timer.
Figure 11.7. A schematic of the race timer.
The race timer should have the following functional features:
It must have 1ms accuracy.
It should display the current race time at the finish line.
It should provide a status display to officials operating the timer.
It should ...
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