Pulse is a project mainly written in C, it's free.
Generate some square wave pulses of varying width and offset
Generate some square pulses using the Overo PWM outputs with a slow frequency and very small duty cycle.
For example, I want a 100 usec signal on PWM8 and a 150 usec signal on PWM9 that starts 20 usec after the PWM8 signal.
___________
| |PWM8 _| |____
________________
| |PWM9 __| |____
The driver is a kernel module that allows me to control the PWM timers to get this kind of behavior.
The control program will provide a simpler interface to the kernel module.
This is for generating some test signals for some other equipment I am working on, but this piece is pretty generic.