Research On Android Mobile Phone Modem Driver Development Based On MTK Platform

Since the birth of the first Android smart phone,its operating system has been optimized,which is open,cross platform,parallel operation mode and monopoly by domestic and foreign business developers sought after.At present,the market share of Android equipment has reached the first place in the world market,the growing demand,companies are also actively developing Android equipped with the operating system equipment,in order to obtain huge profits.Android is a Linux based open source operating system,which complies with the BSD protocol,which is open and can adapt to business development.Mobile phones and other mobile devices to run the brain-processor research and development enterprises,but also continue to increase R&D efforts to seek market revenue share.Low cost,low power consumption,high performance,strong compatibility and other mobile phone manufacturers have become the preferred mobile terminal processor.MTK chip with a good cost-effective to seize the majority of mobile phone CPU market,the paper used in this project is based on the MTK processor chip.Intelligent mobile phone is usually composed of two parts in the circuit,is a part of the high-level processing part,we use the equivalent of the computer;the other part is the baseband,is the core part of the mobile phone,this is equivalent to our use of the Modem,the Android phone system around the bottom with Modem hardware to build mobile phone support network standard.We use the mobile phone to make a call,send text messages and network connections and so on,are sent instructions to the baseband processing system through the upper part,and executed by the baseband processing part,baseband part complete processing will be in the mobile phone and wireless networks to establish a logical channel,our voice,SMS or internet packets are through send this out of the logical channel.After analyzing and developing the depended technology and theory,the paper develops the SIM1 lock card based on SIM2.Practice shows that the Modem system development based on MTK can make the Android mobile phone system work properly and meet the customized requirements.The technical proposal of MTK is simple and effective,and it is helpful for the rapid and effective implementation of business development.