In modern families there are so many electric devices which are intellectual. How to manage the electric devices and can satisfy the people safe to want to the daily life becomes a problem to be resolved the subject of embedded system is inevitable.
The increasingly widespread use of embedded system can be said that everywhere, everywhere. The rapid development of embedded system also greatly enrich and extend the concept of the embedded system. Embedded system -- the core of this section from the formation and development of embedded computer history, Embedded in detail the basic concepts, basic features and the scope of its application. With the ever-expanding field of embedded application, a complete definition of "embedded" concept has become increasingly difficult. Embedded in the many fields of application performance, price, power and other indicators have different requirements. These different requirements, directly driven by the applications processor SoC technology, and in close connection with the rapid development of practical applications. In this study, the use of embedded D Converter System. Digital signal and analog signal conversion circuit has been widely applied, especially in a modern industrial control. analog signal and digital signals, alternately, D conversion is essential.
This paper is based on the industry's outstanding performance ARM processor (using the ARM7TDMI core. Samsung introduced a S3C44B0X) and the external circuit as a basic hardware D Converter application design exposition to the whole process of software decelopemnt.
Key words:Embedded D digital-analog conversion S3C44B0X SDT2.51