---
name: "edge"
section: "9"
platform: "linux"
package: "linuxcnc-uspace"
version: "1:2.9.4-2+deb13u1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/edge/9"
---

# edge(9)

Edge detector

## NAME

edge - Edge detector

## SYNOPSIS

**loadrt edge \[count=*N*\|names=*name1*\[,*name2...*\]\]**

## FUNCTIONS

- **edge.***N*

  Produce output pulses from input edges

## PINS

- **edge.*N*.in bit in**

  - **edge.*N*.out bit out**

  Goes high when the desired edge is seen on 'in'

- **edge.*N*.out-invert bit out**

  Goes low when the desired edge is seen on 'in'

## PARAMETERS

- **edge.*N*.both bit rw (default: *FALSE*)**

  If TRUE, selects both edges.  Otherwise, selects one edge according to in-edge

- **edge.*N*.in-edge bit rw (default: *TRUE*)**

  If both is FALSE, selects the one desired edge: TRUE means falling, FALSE means rising

- **edge.*N*.out-width-ns s32 rw (default: *0*)**

  Time in nanoseconds of the output pulse

- **edge.*N*.time-left-ns s32 r**

  Time left in this output pulse

- **edge.*N*.last-in bit r**

  Previous input value

## AUTHOR

Jeff Epler

## LICENSE

GPL