piclist 1998\05\26\100855a
>
Thread:
calculation in MPASM
www.piclist.com/techref/language/index.htm?key=asm
BY
:
Mark Jurras email (remove spam text)
I need to calculate a constant at compile time to set a delay. I have
an equate:
NumAve equ 0x40 ;Average 64 Readings
that I set for the number of A/D readings I want to average. I want to
average that number over one cycle of the AC power or 1/60 seconds. I
want to call a Macro (You know it well Andy!) with the amount of the
delay between A/D readings. The equation for the delay is:
1000000/60/NumAve-80
1000000 is me instruction rate
60 is the power line freq.
NumAve (see above)
80 is my A/D overhead
I want to invoke Andrew Warren's WAIT macro with
the result. Any hints how to setup the expression??
Thank you,
- -Mark
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