Implementation and application of HDLC protocol based on FPGA in radar processing system

To meet the communications requirements of a wide band radar system, a HDLC controller based on FPGA was designed. The controller is set to idle mode when system reset or software reset occurs. The controller can be set to receiving or sending mode by software control. The special feature of the controller is especial low error rate and using very little hardware resource. Finally the controller was integrated into a wide band radar system, which proved the correctness and dependability of the controller.