' TIME_1.BAS
'
' Shows how to measure "high", "low" times and period.
' Duty cycle also calculated.  Signal source on pin7.  

' P. H. Anderson, MSU, 17 Nov, '96

symbol high_time=w2
symbol low_time= w3
symbol period= w4
symbol symmetry=w5

	dirs=%00001111
	pins=%00000000
	
top:
	pulsin 7, 1, high_time 	'get the high time
	pulsin 7, 0, low_time 	'get low time
	period=high_time+low_time
	symmetry=100*high_time/low_time
	debug high_time, low_time, period, symmetry
	goto top	'continuous loop