Controller module implementation to reduce interrupt in CNPC uplink

The unmanned aerial vehicle is used in diverse area. In order to make more use of the unmanned aerial vehicle, reliable communication system is required. CNPC has been developed to standardize the communication system for unmanned aerial vehicle over 150kg. CNPC uplink should support diverse UAV in TDD. To implement CNPC in real world, operating system and FPGA should be used with the interface between the two. To reduce the use of interrupts in uplink implementations on FPGA, simple controller is designed to generate signals which act as the interrupts whenever other user message is needed. To implement this controller in FPGA, this paper deals with timing diagram for this module.