A control circuit includes an operational amplifier having an inverting input, a non-inverting input, and an output, an array of impedance elements including capacitors are connected to the output of the operational amplifier, and a resistance switch crossbar array configured to store data in the form of high or low resistance states, wherein the resistance switch crossbar array is electrically connected between the array of impedance elements and the inverting input of the operational amplifier. The crossbar control circuit may be implemented in a control system to provide for adjustment of the control system to changes in environmental conditions or to change the function of the control system.