A sample control application employing real time linux

摘要

In this paper a sample control application employing realtime linux as hard realtime operating system is presented. More precisely, a kernel module is in charge of getting a value from a DAQ-board, carrying out the control algorithm and putting the result out to the DAQ board. At the same time, these values are put into shared memory for display by a graphical user interface based on GTK+. The user application sets control parameters, adjusts a setpoint in shared memory, as well as starts, and stops the control process through FIFO-buffers.