為減少測試數據存儲量,提出一種有效的新型測試數據壓縮編碼———PTIDR 編碼,并構建了基于該編碼的
壓縮P解壓縮方案1 PTIDR 編碼能夠取得比FDR ,EFDR , Alternating FDR 等編碼更高的壓縮率,其解碼器也較簡單、
易實現,且能有效地降低硬件開銷1 與Selective Huffman , CDCR 編碼相比,PTIDR 編碼能夠得到較高的壓縮率面積
開銷比1 特別地,在差分測試集中0 的概率滿足p ≥017610 時,PTIDR 編碼能取得比FDR 編碼更高的壓縮率,從而
降低芯片測試成本1
標簽:
PTIDR
Alternating
EFDR
編碼
上傳時間:
2013-12-02
上傳用戶:yyyyyyyyyy
搶答器是一種智力競賽常用的器件,搶答器的設計方法千差萬別,文章利用常用的數字電子器件,設計了八路搶答器電路的設計、仿真及實現的全過程,提出兩種可行的設計方案:方案1采用74ls373實現電路鎖存,74ls148實現電路編碼,74ls74及數碼管實現電路顯示;方案二采用CD4511BCN和LMC555CM集成電路及數碼管實現搶答器的控制和顯示。本文設計用的器件簡單,容易理解,適用于初學電子技術的人員。Answer scrambler is a common device in intelligence competition, and its design methods vary greatly. This paper designs the whole process of design, simulation and Realization of the circuit of eight-way answer scrambler by using common digital electronic devices, and puts forward two feasible design schemes: scheme 1 uses 74 ls373 to realize circuit latching, 74 ls148 to realize circuit coding,74 ls74 and digital tube to realize circuit. The second scheme uses CD4511 BCN, LMC555 CM integrated circuit and digital tube to control and display the answerer. The device designed in this paper is simple and easy to understand, and it is suitable for the beginners of electronic technology.
標簽:
搶答器
上傳時間:
2022-04-05
上傳用戶: