comp - Two input comparator with hysteresis
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loadrt comp [count=N|names=name1[,name2...]] |
comp.N (requires a floating-point thread)
Update the comparator
comp.N.in0 float in
Inverting input to the comparator
comp.N.in1 float in
Non-inverting input to the comparator
comp.N.out bit out
Normal output. True when in1 > in0 (see parameter hyst for details)
comp.N.equal bit out
Match output. True when difference between in1 and in0 is less than hyst/2
comp.N.hyst float rw (default: 0.0)
Hysteresis of the comparator (default 0.0)
With zero hysteresis, the output is true when in1 > in0. With nonzero hysteresis, the output switches on and off at two different values, separated by distance hyst around the point where in1 = in0. Keep in mind that floating point calculations are never absolute and it is wise to always set hyst if you intend to use equal
Jeff Epler
GPL