comp

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