The Schedule Platform For Dynamic Reconfigurable Technology Research

With the rapid growth of wearable devices, it has been widely used in various fields, including military,medical and other fields. Demand from different fields are constantly changing,which make wearable computer need more complex and diverse applications.Thus, it require this kind computer have high performance, and contain abundant sensing equipments and accessories,which make the computer’s on-board area larger than ideal case and increase energey consumption.It’s a deviation from the small volume、low power consumption and light weight characteristics of wearable computers.To solve this problem, dynamic reconfigurable technology is an effectively method used in wearable computers.But the dynamic reconfiguration technology has IP configuration time-consuming problem, results in function switch slots increasing.Besides,aiming at the application features of the wearable computers, there were no specific schedule strategy studies about dynamic reconfigurable hardware-software task.This study based on the heterogeneous multi-process platform, achieving the dynamic reconfigurable schedule platform,unifiedly managing the reconfigurable resources; Linux operating system was used to controll the flexibility switches of the software and hardware,combining the advantages of software and hardware tasks, balancing the overall computing system resources to enhance overall system performance.The main works in this articl e are as follows:Dynamic reconfiguration platform design and implementation: analyse the application characteristics of the wearable computers, design and complete the schedule platform, determine the reconstruction task schedule model、 multi-process reconstruction task management 、 multi-IP core extension methods and reconstruction condition monitoring methods.Study FPGA configuration: figure out the FPGA collocation methods,provide an programme using CPLD as the configuration controller to accelerate the process of FPGA configuration,research the whole and part configuration process es,propose decreasing configuration time methods through depressing the profile size by patial reconfiguration.Research and implementation of hardware and software configuration controller: depend on the specific application scenario of wearable computers,give four schedule strategies about load balancing、priority efficient、lowest power consumption and user choice,and analyze the four schedule strategies, provide the detailed implementation methods.Finally,after the actual test,it showed that reconfigurable dynamic schedule platform can perform basic functions and manage IP cores.When the experiments of FPGA configuration and software hardware configuration controller was explored, results showed that the configuration strategy can significantly shorten the given configuration time,and coordinating scheduling software and hardware can meet the application demand of wearable computers.In conclusion, our works showed that dynamic reconfiguration technology combined with proper schedule platform can solve the bottleneck of wearable computer.