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Application Development
Figure 16.
Depending on the software configuration, analog data is collected as 8, 10, or 12 bits. Make sure this field
matches how the software is configured.
Figure 17.
The final field that must be completed is the Number of teeth. This is the number of teeth on the flywheel
as used for synchronization and engine speed measurement. Use the total number of teeth including
missing teeth as the spacing is the important characteristic. For example, an engine may have a 12 minus
one tooth configuration, meaning 12 equally spaced teeth and one of the teeth is removed for
synchronization. In this case the relevant number is 12.
Small Engine Reference Design User Manual, Rev. 3.0
Freescale Semiconductor
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