Timing Error with 12F629

[Bruce]

Hi Dick,

94 seconds is about right. If you run this through MPLAB with a breakpoint
set on NEXT, you'll see it takes 9.4 seconds total just to reach NEXT.

Run through 10-times, and you end up with around 94 seconds to complete
your 10 pass loop.

You're forgetting to add-in the over-head for PBP commands.

for i = 1 to 10
counter = 0
while counter < time*500 '(40*500*10 = 200,000)
GPIO.4 = 1 '(75% duty cyle) 
pauseus 150 '(pwm = 5000 hz (.000200 sec. period))
GPIO.4 = 0
pauseus 50
counter = counter+1
wend
next ' <-- Takes 9.4 seconds to get here the first time

Try it with these changes for around 40.0366 S.

Time = 29
while counter < time*493