介绍了Intel 公司的PXA255 处理器的特点及内部结构,并讨论了在移动测试领域的具体应用,介绍了基于PXA255 的CCD 图像的采集,压缩编码和传输的理论分析和可行性分析;并把本应用与现有的测试设备做了比较,实践证明该设计可靠、可行,可应用于移动测试领域。 关键词:PXA255,嵌入式系统,mpeg4,CPLD,CCD Abstract: Introduced the characteristic and the interior configuration of PXA255 which is produced by Intel company, And discussed the application of PXA255 in the field of mobile testing, Also introduced the CCD image data acquisition on the basis of PXA255, and analysis of the compression, coding and transmission theoretically ,and the feasibility analysis .It also contains the comparison between this design and the testing device which is in existence ,and the design is reliable and feasible,and it can be used in the field of mobile testing. Keywords: PXA255; embedded system; mpeg4; CPLD; CCD