This is a simple example of scheduled tasks under real time linux. Two tasks are scheduled to update signals to both DA ports on the ComputerBoard CIO-DAS1600. This was done on a 486 33Mhz machine. This zip file contains the following: Makefile README.TXT create_fifo.c das1600.h rt_process.c signal_generator sinewave.c The scheduler module must be loaded before running signal_generator. Must be run with root permissions. Paths in the makefile may have to be changed. There are no implied guarantee or warranty on this software. The source is provided and can be changed to fit your need. Bill Crum New Mexico Tech http://www.nmt.edu/~tobor tobor@nmt.edu