| As the development of computer technology, the embeded system is becoming more and more important in people's daily life. In recent years, The embeded technology base on ARM and m C /OS-â…¡has been a hot spot in embedded domain researchThis thesis intends to build an embedded hardware and software developing platform based on ARM7 processor and m C /OS-â…¡, and offers the solution which can extend some functional modules easily to the user.After that, This design also take the accelerometer as an object and for the realization of its internal temperature and the acceleration signal gathering as an application. This hardware platform is consisted of two parts, one is ARM system, the other is data acquisition system. The ARM system include: S3C44B0X module, memory module, debugging interface module, LCD manifestation module and key board module. The author has completed the master board design and the confirmation, and reserves many kinds of connections to strengthen the extendibility. The data acquisition subsystem takes the data acquisition and the control mechanism, mainly supported by A/D transformation chip, uses in receiving data from the sensor, then communicate to lower computers with UART, after the ARM processor analysis. Lastly, author test the modules. Because there are many lower computers, the platform expands a 8-UART communication module which that have the high speed buffer. Finally, carries on the overall debugging to various hardware module and analysis the result.The experimental results demonstrate that this system not only has advantages of high reliability, high performance, but also can be transplanted and trimmed so well as to modify function.the performance of this system has achieved all expected goals. |