3、operatingsystemandtouchscreenisveryconvenient,touchscreenmobilephoneismoreandmorepopular.Touchscreenmobilephoneswillbethemostmainstreamconfigurationin the future.The whole system is mainly composed by STC12C5A60S2 microcontroller,Sim300module,serialtouchscreen,andsomeperipheralde
4、vices.Therealizationmethodofthemainfunctionis:firstlyuseatouchscreensupportingPCconfigurationsoftwareandPSsoftware,settouchscreeniconandnumerickeypadandotherdisplayinterfaceinadvance.Thendownloadtotheinternalmemoryofthetouchscreen,letinternal touch screen process;If the correspon
5、ding touch button is pressed,sent the data of processed by the touch screen to the microcontroller via a serial microcontroller,Then the microcontroller executes the corresponding arithmetic processing and judgment. Then thecontrollersendtheappropriateATcommandtoSIM300modulethrou