文章提出了一種精簡指令集8 位單片機中, 算術邏輯單元的工作原理。在此基礎上, 對比傳統PIC 方案、以及在ALU 內部再次采用流水線作業的332 方案、44 方案, 并用Synopsys 綜合工具實現了它們。綜合及仿真結果表明, 根據該單片機系統要求, 44 方案速度最高, 比332 方案可提高43.9%, 而面積僅比最小的332 方案增加1.6%。在分析性能差異的根本原因之后, 闡明了該方案的優越性。關鍵詞: 單片機, 精簡指令集, 算術邏輯單元, 流水線
Abstract: Work principle for ALU in an 8_bit RISC Singlechip microcomputer is described. The traditional PIC scheme, 332 Pipeline scheme and 44 Pipeline scheme are compared on the base of the principle, which are implemented using Synopsys design tools. Results from synthesis and simulation shows that 44 scheme operates the fast, which is 43.9% faster and only 1.6% larger than 332 scheme. The essential reason why the performance is so different is analyzed.Then the advantage of 44 scheme is clarified.Key words: Singlechip, Microcomputer, RISC, ALU, Pipeline
標簽：
ALU
8位單片機
上傳時間：
2013-10-18
上傳用戶：xiaoyaa
溫度控制如今已成為當代社會研究的熱點之一,而溫度檢測在現代設備參數檢測中也是一項極其重要的技術,應用十分廣泛。與傳統的測溫方法相比,紅外測溫方法具有時間短、精度高、使用簡單方便等優點。本文以環境溫度為被測對象,設計了以STC89C52單片機為控制中心的紅外測溫裝置,能夠實現對目標溫度的實時采集、處理、顯示和報警等功能。本設計主要是由STC89C52單片機、紅外測溫傳感器、LCD1602液晶顯示器、按鍵和蜂鳴器等部分組成,采用非接觸的方式對目標溫度進行實時檢測。Temperature control has become one of the hotspots in contemporary social research,and temperature detection is an extremely important technology in modern equipment parameter detection.Compared with traditional method,the infrared temperature measuring method has advantages of short time,high precision and convenient operation,etc.This paper consider environment temperature as research objects and designs an infrared temperature measuring device which employs the STC89C52Singlechipas-control center,and it can realize timely collection,processing,display and alarm function of the target temperature.The design is mainly composed of STC89C52 Singlechip,infrared temperature sensor,LCD1602monitor,keys and buzzer,etc.This design detects the target temperature by non-contact method.
標簽：
單片機
紅外測溫
上傳時間：
2022-03-27
上傳用戶：jiabin
