Transplantation And Optimization Of YunOs Mobile Phone System Based On MT6735 Platform

In nowadays many embedded smart device have entered people's life.PDA,smart module,wearable devices,smart phones have become an indispensable tool in people's life,and the smart phones is especially protruding.It has the ability of processing a variety of RF signal,transmitting multimedia audio and sensing signal,network information,which is not only due to the hardware device and also more get benefits from a number of embedded OS software which support to these devices such as iOS,Android,YunOS,Symbian,WM and so on.This paper is about exploration for how to transplant and optimize of the YunOS.First of all the paper introduce the hardware MT6735 and the other peripheral units.At the same time comparing with other platform for competition with advantages and disadvantages,such as Qualcomm,Spreadtrum platform.Explain the configuration of other peripheral units be used in this project,and interface principle and control mode.The second part introduce the Android6.0 OS which has been used on the mt6735.Expound it's organization way and the basic architecture.Then leads to what YunOS5.1.0 done for rebuilding the system wihich is based on the Android6.0,introducing the architecture and code organization way.The next is to describe how to configure the Linux kernel-3.18 and how to mount the peripheral units and optimize for the performance of these device for the project,how to solve the problem of the same IC ID compatible.The paper mainly introduces LCM TP driver transplantation and optimization process of the sensor module in the system for the project,and the system framework layer and driver layer how to interact.The paper also illustrates the process of a APK to call a peripheral unit,analysis the function module code.Finally,to verify the performance of the whole system by monkey test and a amount of experiments.Through the complete test case and various strength testing to confirm the stability of the whole machine.Then delivered to the customer and alpha test users to simulate terminal customer's operating.Finally,through the feedback of these simulated customer,fixed bugs be found from the actual use of.We do further improve the machine,after comprehensive evaluation of customers,the project passed the verification realize the production.