A Performance Analysis System for the Sport of Bowling
A Performance Analysis System for the Sport of Bowling
A Performance Analysis System for the Sport of Bowling
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Appendix A: SMARTDOT Module Embedded S<strong>of</strong>tware Flowcharts<br />
LIGHT SAMPLE ISR FLOWCHART<br />
On:<br />
Timer 0 (T0)<br />
Overflow<br />
A<br />
B<br />
C<br />
Disable Interrupts<br />
Push ACC<br />
Push PSW<br />
First Sample = TRUE<br />
New Sample = TRUE<br />
Turn ON TSL251<br />
(start next ADC conversion)<br />
First<br />
Sample<br />
Of<br />
240 Hz<br />
Pair?<br />
YES<br />
Sample = ADAT<br />
(from previous conversion)<br />
YES<br />
Reached<br />
Shutdown<br />
Time?<br />
NO<br />
Is<br />
Sample<br />
=<br />
Release<br />
Level?<br />
YES<br />
NO<br />
NO<br />
Impact = FALSE<br />
First Sample = FALSE<br />
Is<br />
Sample<br />
Level below<br />
Shutdown<br />
Level?<br />
NO<br />
Reset Shutdown Count<br />
<strong>for</strong> Release Time Out<br />
Release = TRUE<br />
Sample += ADAT<br />
(from previous conversion)<br />
NO<br />
Is<br />
Sum<br />
><br />
255?<br />
YES<br />
B<br />
Sample = 127<br />
(clip to 127 <strong>for</strong> Impact Bit)<br />
YES<br />
Shutdown Count++<br />
Has it<br />
been<br />
Dark<br />
too Long?<br />
NO<br />
NO<br />
Has<br />
Release<br />
Already<br />
Occurred?<br />
YES<br />
Reset Shutdown Count<br />
<strong>for</strong> Shutdown Time Out<br />
Update Run Time<br />
Turn Off TSL251<br />
(waits <strong>for</strong> ADC to complete)<br />
Pop PSW<br />
Pop ACC<br />
Enable Interrupts<br />
Sample /= 2<br />
(average out 240 Hz noise)<br />
YES<br />
Shutdown = TRUE<br />
(reached Shutdown condition)<br />
A<br />
Figure A-2<br />
C<br />
RETURN FROM INTERRUPT<br />
A-3
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