| With the development of communication technology and the Internet of things application promoted,wireless communication technology is widely used by more and more industries,the advantages of no wiring,high flexibility,more usability,and short development cycle greatly reduce the hardware cost.It accelerates the market development and the market promotion speed,especially the industry of wisdom,intelligence industry got unprecedented development.All kinds of intelligent products and intelligent equipment widely used in various industries,including vehicle monitoring,smart home,remote meter reading,POS machine,Shared cycling,etc.Embedded wireless communication module is the core component of wireless communication technology,the research value of wireless communication module is more and more important.The wireless communication module is itself a system integration chip,as the core component of Internet communication system,after the hardware and software design of wireless communication module is finished,how to make wireless communication module? How to download the on-chip system software to wireless communication module? How to optimize the performance of each module differences? How to test the reliability of the wireless communication module before they go out? How convenient production line workers? How to reduce the production scrap rate of the wireless communication module,optimize production line's production capacity? These questions are important research topic in the wireless communication module manufacturers.This paper takes SIM808 wireless communication module which produced by SIMCOM company as the research object,designs and implements the production test system of SIM808 wireless communication module.The production test described in this paper refers to a series of operations after the SMT production of SIM808 wireless communication module and before reaching the factory standard.SIM808 wireless communication module is a system integration chip based on mobile communication network(GSM/GPRS).This paper deeply analyzes the functions and hardware and software architecture of SIM808,on the basis,the system integration chip testing solution is given for SIM808 wireless communication module,the solution solve on-chip system software downloading,solve performance optimization for each module,the solution solve chip bad test and performance test of the wireless communication module production after SMT,in order to reduce the production scrap rate of wireless communication module,optimize the production capacity of the production line,to ensure the production quality of the wireless communication module,make sure the production goes on wheels.The solution realize automated testing for system integration chip of wireless communication module,The solution greatly improves the efficiency and accuracy of the quality test after the production of the factory production line,and improves the productivity of the wireless communication module.The main works are as follows:(1)The testing system analyzed the function and usage of the wireless communication module,according tothe software platform scheme of SIM808 wireless communication module,and given the softwarearchitecture design of the system integration chip test.(2)According to the hardware design scheme of SIM808 wireless communication module,the paper analyzed the hardware interface,PIN feetdefinition,internal line way,external packaging ways of SIM808 system integration chip.According to the design of the hardware SIM808 system integration chip,this paper given the system integrated chip testing solution ofSIM808 wireless communication module,including hardware design and software design ideas.(3)Implement the system integrated chip testing solution of SIM808 wireless communication module.According to the software platform architecture of the SIM808 wireless communication module,the software design interface of the system integrated chip test scheme is added,which is the test AT instruction of the system integrated chip.(4)Design visual software test tools,integrated AT instructionsfor system integration chip test,realize visual interface operation,and facilitate the use of factory testers. |
