I came across this today https://github.com/Teknoman117/beaglebot/tree/master/hcsr04-demo
Might be just what you need. On Thursday, 10 July 2014 23:21:55 UTC+10, Mark A. Yoder wrote: > > I have a HC-SR04 Ultrasonic Ranging Module[1] I want to interface to the > Bone. It outputs a pulse whose width is proportional to the distance to > the object. > > The AM335x TRM says the eCAP Module (Enhanced Capture) can measure the > time of a pulse. Has anyone written an eCAP kernel driver? Are there other > ways to access the eCAP hardware? > > I'm running the 1-July-2014 Debian image. > > Thanks... > > --Mark > > [1] > https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=0CC4QFjAC&url=https%3A%2F%2Fdocs.google.com%2Fdocument%2Fd%2F1Y-yZnNhMYy7rwhAgyL_pfa39RsB-x2qR4vP8saG73rE%2Fedit&ei=cJG-U7ayGsyMyATGpoKIAQ&usg=AFQjCNEl7_92OTpEqYieKiT6D1fHJEwi9Q&sig2=aa8OnjEBQAGcLrjgDM4wSQ > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
