在深入了解Flash存儲器的基礎(chǔ)上，采用單片機自動檢測存儲器無效塊。主要通過讀取每一塊的第1、第2頁內(nèi)容，判斷該塊的好壞，并給出具體的實現(xiàn)過程，以及部分關(guān)鍵的電路原理圖和C語言程序代碼。該設(shè)計最終實現(xiàn)單片機自動檢測Flash壞塊的功能，并通過讀取ID號檢測Flash的性能，同時該設(shè)計能夠存儲和讀取1GB數(shù)據(jù)。 Abstract: On the basis of in-depth understanding the Flash chips，this paper designs a new program which using the SCM to detect the invalid block.Mainly through reading the data of the first and second page to detect the invalid block.Specific implementation procedure was given,and the key circuit schematic diagram and C language program code was introduced.This design achieved the function of using the MCU checks the invalid block finally，and increased the function by reading the ID number of Flash to get the performance of the memory.And the design also can write and read1GB data
上傳時間： 2013-10-25
上傳用戶：taozhihua1314
設(shè)計一種基于AT89C52的語音錄放系統(tǒng)，利用單片機、ISD2560語音錄放器件、麥克風(fēng)、揚聲器等元器件實現(xiàn)硬件電路的設(shè)計，并利用C51高級語言設(shè)計ISD2560器件控制字的寫入和定時中斷程序。經(jīng)軟硬件調(diào)試，結(jié)果表明該系統(tǒng)錄放效果良好，具有一定的工程實用價值。 Abstract: Voice recording and playback system based on AT89C52is designed in this paper.Using the single-chip microcomputer，voice recording and playback chip ISD2560，microphone and speaker to realize the hardware circuit design.Writing ISD2560control words and timing interrupt procedures are designed by C51advanced language.Through the hardware and software test,voice recording and playback system play better voice,and this system has some engineering practical values.
上傳時間： 2013-10-20
上傳用戶：ywcftc277
介紹基于VHDL的微型打印機控制器的設(shè)計。論述了微型打印機的基本原理，以及實現(xiàn)控制器的VHDL語言設(shè)計。打印機的數(shù)據(jù)來自系統(tǒng)中的存儲模塊，根據(jù)需要控制打印。該微型打印機控制器可取代傳統(tǒng)的微型打印機,且抗干擾性好,可靠性高，具有較強的移植性，稍加改動就可應(yīng)用于不同場合。 Abstract: This paper introduced the design method of micro printer controller based on VHDL.The basic principles of microprinter is explained,as well as the realization of the controller by VHDL language.The printer data is from the system memory modules,can control printer.The design of microprinter controller has antigood and high reliability，it can replace the traditional printer.The controller has very good portability,and need little modify that can use in different situation.
標(biāo)簽： VHDL 微型打印機 制器設(shè)計
上傳時間： 2013-11-03
上傳用戶：dudu1210004
介紹一種多功能音樂播放器，它是以AT89S52單片機為核心，并輔有一些外圍器件，采用匯編語言編寫程序，實現(xiàn)多功能音樂播放，歌曲自動循環(huán)播放和使用琴鍵自編曲目功能。此外，彩燈顯示歌曲節(jié)奏，按鍵跳轉(zhuǎn)到喜愛曲目，液晶顯示當(dāng)前播英文曲目。并給出了系統(tǒng)軟硬件設(shè)計。 Abstract: It introduces a multifunctional music player,taking AT89S52 single-chip microcomputer as hardware control core and using some peripheral elements.Programmes are compiled in assembly language to act as expected.There are two functional modes in this system.One is to make the music play automatically and consecutively,the other is to compose new songs through keys.In addition,lights show the pace of music and the English names can be displayed in the liquid crystal screen.With perfect combination of hardware and software,the music player can meet many music lovers’needs for multifunctional music player.And the hardware and software of the system are given.
上傳時間： 2013-11-18
上傳用戶：xiaodu1124
Mega16是一款采用先進RISC精簡指令，內(nèi)置A/D的8位單片機，可支持低電壓聯(lián)機 Flash和EEPROM 寫入功能；同時還支持 Basic和C 等高級語言編程。用它設(shè)計電子時鐘不僅成本低，硬件簡單，而且很容易實現(xiàn)系統(tǒng)移植。介紹了如何利用AVR系列單片機Mega16及1602字符液晶來設(shè)計電子時鐘的方法，同時給出了相應(yīng)的電路原理及部分語言程序。 Abstract: ?Mega16 is a high-performance, low power consumption, the use of advanced RISC concise instructions, built-in A/D 8-bit microcontrollers, the on-line support for low-voltage Flash, EEPROM write function. Except Mega16 also support the Basic, C, and other high-level language programming.The electronic clock which is deisgned by Mega16 is not only low-cost, simple hardware, but easy to achieve system migration.The design method of electrioic clock based on the AVR Mega16 and character LCD1602 is introduced in this paper,and the corresponding circuit electrionic and some language program are given.
上傳時間： 2014-12-27
上傳用戶：zl5712176
介紹了基于單片機C8051F020的通用串口適配器的設(shè)計與實現(xiàn)方法，即由單片機控制的智能化一對多口收發(fā)信號轉(zhuǎn)換器。通過采用C51對單片機進行編程，控制與RS-232（標(biāo)準(zhǔn)RS-232電平）、RS232(TTL電平)、RS-422接口的數(shù)據(jù)通信；采用C++ Builder作為開發(fā)平臺，通過RS-232接口實現(xiàn)上位機對適配器各個通信端口的控制。 Abstract: Design and realization of a universal serial port adapter based on the MCU C8051F020 are introduced.The adapter is an intelligent one-to-more receiving and transmitting signal converter controlled by the MCU. By programming the MCU with the language C51,MCU control data communication between the MCU and RS-232(RS-232 level),RS-232(TTL level),RS-422 port; Using C++ Builder as the development plane, by one RS232 port, the upper PC can control each of the communication port of the adapter.
上傳時間： 2013-11-19
上傳用戶：hebanlian
MPLAB C30用戶指南(英文) HIGHLIGHTSThe information covered in this chapter is as follows:• About this Guide• Recommended Reading• Troubleshooting• The Microchip Web Site• Development Systems Customer Notification Service• Customer Support Document LayoutThe document layout is as follows:• Chapter 1: Compiler Overview – describes MPLAB C30, development tools andfeature set.• Chapter 2: Differences between MPLAB C30 and ANSI C – describes thedifferences between the C language supported by MPLAB C30 syntax and thestandard ANSI-89 C.• Chapter 3: Using MPLAB C30 – describes how to use the MPLAB C30 compilerfrom the command line.• Chapter 4: MPLAB C30 Runtime Environment – describes the MPLAB C30runtime model, including information on sections, initialization, memory models, thesoftware stack and much more.• Chapter 5: Data Types – describes MPLAB C30 integer, floating point and pointerdata types.• Chapter 6: Device Support Files – describes the MPLAB C30 header and registerdefinition files, as well as how to use with SFR’s.• Chapter 7: Interrupts – describes how to use interrupts.• Chapter 8: Mixing Assembly language and C Modules – provides guidelines tousing MPLAB C30 with MPLAB ASM30 assembly language modules.
上傳時間： 2013-10-21
上傳用戶：13925096126
1.The C Programming language is a powerful, flexible andpotentially portable high-level programming language. 2.The C language may be used successfully to create a programfor an 8-bit MCU, but to produce the most efficient machinecode, the programmer must carefully construct the C languageprogram.3.The programmer must not only create an efficient high leveldesign, but also pay attention to the detailed implementation.
上傳時間： 2013-12-27
上傳用戶：huanglang
匯編器在微處理器的驗證和應(yīng)用中舉足輕重，如何設(shè)計通用的匯編器一直是研究的熱點之一。本文提出了一種開放式的匯編器系統(tǒng)設(shè)計思想，在匯編語言與機器語言間插入中間代碼CMDL（code mapping description language）語言，打破匯編語言與機器語言的直接映射關(guān)系，由此建立起一套描述匯編語言與機器語言的開放式映射體系。基于此開放式映射體系開發(fā)了一套匯編器系統(tǒng)，具有較高層次上的通用性和可移植性。【關(guān)鍵詞】指令集，CMDL，匯編器，開放式 Design of Retargetable Assembler System Liu Ling Feng Wen Nan Wang Ying Chun Jiang An Ping Ji Li Jiu IME of Peking University, 100871【摘要】An assembler plays a very important role in the field of microprocessor verifications and applications, thus how to build a retargetable assembler system has been a hotspot in this field for long time. This paper presents a new method about the retargetable assembler system design.It provides a kind of language CMDL, code mapping description language. During the process of assembling, assembler languages are firstly translated to CMDL, and then mapped to the machine codes. In an other word, CMDL is inserted between assembler languages and machine codes during the translation procedure. As a medium code, CMDL has a lot of features, such as high extraction, strong descript capabilities. It can describe almost all attributes of assembler languages. By breaking the direct mapping relationship between assembler languages and machine codes, the complexities of machine codes are hided to the users, therefore, the new retargetable assembler system has higher retargetable level by converting the mapping from assembler languages and machine codes to assembler languages and CMDL, and implementationof it becomes easier. Based on the new mapping system structure, a retargetable assemblersystem is developed. It proved the whole system has good retargetability and implantability.【關(guān)鍵詞】instruction set, symbol table, assembler, lexical analysis, retargetability
上傳時間： 2013-10-10
上傳用戶：meiguiweishi
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their productsor to discontinue any product or service without notice, and advise customers to obtain the latestversion of relevant information to verify, before placing orders, that information being relied onis current and complete. All products are sold subject to the terms and conditions of sale suppliedat the time of order acknowledgement, including those pertaining to warranty, patentinfringement, and limitation of liability.
標(biāo)簽： Assembly language C6000 320C
上傳時間： 2013-11-12
上傳用戶：chens000
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