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PDF documents are not translated. Resources Sitemap Accessibility Help Center. Montgomery County Overview. Montgomery County Code. Preliminary Information. Part I. The Charter. This is especially good to know if you pass 'true' as the parameter and then calculate the difference between two float values -- the result is already in seconds; it doesn't need to be divided by a million.
All these timing scripts rely on microtime which relies on gettimebyday 2 This can be inaccurate on servers that run ntp to syncronise the servers time. This may seem a bit picky, but I recently saw a server that's clock was an hour out, and they'd set it to 'drift' to the correct time clock is speeded up until it reaches the correct time Those sorts of things can make a real impact. Set this in you php. It happens because the float returned has a big integer section, what crops the decimal one leaving it with less than 6 digits.
Here is a solution to easily calculate the execution time of a script without having to alter any configuration parameter. It uses the former way of getting microseconds. If it happens to land on an exact second, it returns an integer instead. Always Float! The description of "msec", in this documentation, is very bad. It is NOT the microseconds that have elapsed since "sec" if so, it should be given as an integer, without the "0.
It IS the fractional part of the time elapsed since "sec", with microseconds 10E-6 precision, if the last "00" are not considered significant". Is there something I should be doing in the interrupt at overflow? I've been debugging this all afternoon without luck. Here TIM5 cycling on an F7, rolls every 43, doesn't filp into bit mode.
I need a more granular time than what is given in ticks. I don't care if they are microseconds between incoming pulses. Before the timer overflow, all is well. Consequently, the routine that looks at the timing thinks all pulses are fast after the overflow opposed to a scale of from 1 to 4 and all above 4 are treated the same way.
But it no matter the accuracy of the count, it should be consistent and it isnt. It should be around 10, So I have something else wrong here that I don't understand. I mean, the setup code for TIM5 is pretty basic. I tried moving the PSC register from 39 to 7 and back to 3, with no change in the delta count.
I have to think about this now as it isn't working as expected. The overflow isn't set.
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