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timestamps as used on mainframes/unix etc are imho the simplest,easiest and most efficient way to measure time periods accurately. they work marvelously on pic micros too, i have tried to...
Note to self, revisit this thread later.
i did a little test , your way is 4 times bigger code and executes upto 10 times slower #CONFIG __config _CONFIG1, _FEXTOSC_OFF & _RSTOSC_HFINT32 & _CLKOUTEN_OFF & _CSWEN_OFF & _FCMEN_ON ...
Modded this code for program: https://dt.picbasic.co.uk/CODEX/ETimer Elapsed_DN.bas came from here: https://www.picbasic.co.uk/forum/content.php/527-Re-Elapsed-Timer-Demo
16F18877 Program: #CONFIG __config _CONFIG1, _FEXTOSC_OFF & _RSTOSC_HFINT32 & _CLKOUTEN_OFF & _CSWEN_OFF & _FCMEN_ON __config _CONFIG2, _MCLRE_ON & _PWRTE_OFF & _LPBOREN_OFF &...
Weeeeee! https://youtu.be/gvKmfPcCTvg?si=-a1qpOElWniaTyAb
...insert facepalm emote here... Who knows how long this thing has been working. :wink:
Typo? RESETn is a low-active input so it wants a pullup, not pulldown... The traces show you're getting a NAK to the first byte (chip address), so that needs to get fixed before anything else.
Image 3: 9784 Image 4: 9785
Logic Probe readings of SCL/SDA lines. #CONFIG __config _CONFIG1, _FEXTOSC_OFF & _RSTOSC_HFINT32 & _CLKOUTEN_OFF & _CSWEN_OFF & _FCMEN_ON __config _CONFIG2, _MCLRE_ON & _PWRTE_OFF &...
loop:
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Re: Temp variables exceeding LastTvar "Increase the MaxTvars constant"
timestamps as used on mainframes/unix etc are imho the simplest,easiest and most efficient way to measure time periods accurately. they work marvelously on pic micros too, i have tried to...
richard Today, 05:47