I wrote a simple program to talk to a Phidgets servo controller, and hooked up a 9 gram servo to it. It is based on Simple Servo.
The program is contained here:
After I wrote it, it was working. Meaning that the servo would rotate as instructed and stopped.
Then I forgot about it for a day, rebooted my Linux system, and after that as soon as I start the program, the servo begins to spin endlessly.
It seems to happen even if I comment out the part responsible for actually actuating the servo and occurs during initialization.
Any idea why a servo would endlessly spin and not stop?