GEARCHANGE(9)

NAME
gearchange - Select from one two speed ranges

SYNOPSIS

The output will be a value scaled for the selected gear, and clamped to the min/max values for that gear. The scale of gear 1 is assumed to be 1, so the output device scale should be chosen accordingly. The scale of gear 2 is relative to gear 1, so if gear 2 runs the spindle 2.5 times as fast as gear 1, scale2 should be set to 2.5.

FUNCTIONS

gearchange.N (requires a floating-point thread)

PINS

gearchange.N.sel bit in
    Gear selection input

gearchange.N.speed-in float in
    Speed command input

gearchange.N.speed-out float out
    Speed command to DAC/PWM

gearchange.N.dir-in bit in
    Direction command input

gearchange.N.dir-out bit out
    Direction output - possibly inverted for second gear

PARAMETERS

gearchange.N.min1 float rw (default: 0)
    Minimum allowed speed in gear range 1

gearchange.N.max1 float rw (default: 100000)
    Maximum allowed speed in gear range 1

gearchange.N.min2 float rw (default: 0)
    Minimum allowed speed in gear range 2

gearchange.N.max2 float rw (default: 100000)
    Maximum allowed speed in gear range 2

gearchange.N.scale2 float rw (default: 1.0)
    Relative scale of gear 2 vs. gear 1. Since it is assumed that gear 2 is "high gear", scale2 must be greater than 1, and will be reset to 1 if set lower.

gearchange.N.reverse bit rw (default: 0)
    Set to 1 to reverse the spindle in second gear.

AUTHOR

Stephen Wille Padnos

LICENSE

GPL