omap3-pwm

A Linux Kernel module for Pulse Width Modulation on gumstix overo and beagleboard

This is a Linux Kernel module for gumstix overo and beagleboard (open embedded environment). It is derived from earlier works by Scott Ellis and Varun Jewalikar.

Features:
  • Sysfs and ioctl Interface
  • fixes the (unlocked) ioctl compilation issues for newer kernels
  • Supports all 4 PWM outputs on 40-pin extension header
  • All 4 PWM timers use 1.3 MHz system clock for better resolution
  • And thus: possibility to control servos and motor drivers (should be about 5 % duty cycle at 50 Hz for furthest in one direction, 10 % DC for the other and 7.5 % for neutral position)
Readme
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