电子制作
電子製作
전자제작
ELECTRONICS DIY
2014年
24期
6-8
,共3页
可编程片上系统%SDRAM测试%现场可编程逻辑器件%嵌入式系统
可編程片上繫統%SDRAM測試%現場可編程邏輯器件%嵌入式繫統
가편정편상계통%SDRAM측시%현장가편정라집기건%감입식계통
System on Programmable Chip (SOPC),SDRAM Test%Field Programmable Logic Array (FPGA)%Embedded System
介绍了一种基于可编程片上系统(System on Programmable Chip, SOPC) SDRAM的通用测试方法和测试技术的系统实现。采用Altera的FPGA芯片EP3C40F484I7作为SDRAM的控制器,建立基于SOPC的嵌入式系统,编写对应的控制和测试程序。通过选择时钟频率和锁相环的相移,使得SDRAM时钟和控制器时钟同步,确保该SDRAM测试技术平台能够系统验证SDRAM芯片的工作状态。
介紹瞭一種基于可編程片上繫統(System on Programmable Chip, SOPC) SDRAM的通用測試方法和測試技術的繫統實現。採用Altera的FPGA芯片EP3C40F484I7作為SDRAM的控製器,建立基于SOPC的嵌入式繫統,編寫對應的控製和測試程序。通過選擇時鐘頻率和鎖相環的相移,使得SDRAM時鐘和控製器時鐘同步,確保該SDRAM測試技術平檯能夠繫統驗證SDRAM芯片的工作狀態。
개소료일충기우가편정편상계통(System on Programmable Chip, SOPC) SDRAM적통용측시방법화측시기술적계통실현。채용Altera적FPGA심편EP3C40F484I7작위SDRAM적공제기,건립기우SOPC적감입식계통,편사대응적공제화측시정서。통과선택시종빈솔화쇄상배적상이,사득SDRAM시종화공제기시종동보,학보해SDRAM측시기술평태능구계통험증SDRAM심편적공작상태。
This paper introduces a development method of SDRAM test technique based on system on programmable chip(SOPC).The FPGA chip of EP3C40F484I7 produced by Altera is acted as SDRAM control er,and building embedded system based on SOPC and editing corresponding test procedure. It can get the synchronization of clock between SDRAM and SDRAM control er by adjusting the frequency of clock and phase shift of PLL,which make sure that the SDRAM test platform could achieve the comprehensive functional tests of SDRAM chip.