針對當前安檢力學試驗機所能完成的試驗種類單一、自動化程度低等問題，提出一種以ATmega128單片機為核心控制器的安檢力學試驗機的設計。詳細闡述了該安檢力學試驗機各個組成部分的設計原理和方案，并且給出了各部分的軟件設計思想和操作流程。經(jīng)過大量測試試驗表明：設計的安檢力學試驗機可以完成多達十余種的力學安檢試驗，完全符合相關國家標準，并且具有數(shù)據(jù)采集精度高、傳輸速度快、操作安全簡便等特點，實現(xiàn)了安檢設備的多功能化、數(shù)字化和自動化。 Abstract: Currently， many mechanical security testing machines have only one function. The degree of automation of them is low. To solve those problems， a new kind of mechanical security testing machine， using ATmega128 micro-controller as its core controller， has been advanced. It describes the components of the machine. The principles and the scheme in the designing processes are presented in detail， and the software architecture and the operation processes of each part are given. After having done many testing， we have reached the following conclusions: the mechanical security testing machine presented can do over ten mechanical security tests complying with related national standards. It has high data acquisition accuracy and high transmission speed. The operation of the machine is simple and safe. In general， this machine is a multi-functional， highly automatic， digitalized security testing device.
上傳時間： 2013-11-05
上傳用戶：a67818601
Stellaris(群星)單片機的片上FLASH編程(英) INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH LUMINARY MICRO PRODUCTS. NO LICENSE,EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THISDOCUMENT. EXCEPT AS PROVIDED IN LUMINARY MICRO’S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS,LUMINARY MICRO ASSUMES NO LIABILITY WHATSOEVER, AND LUMINARY MICRO DISCLAIMS ANY EXPRESS OR IMPLIEDWARRANTY, RELATING TO SALE AND/OR USE OF LUMINARY MICRO’S PRODUCTS INCLUDING LIABILITY OR WARRANTIESRELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHTOR OTHER INTELLECTUAL PROPERTY RIGHT. LUMINARY MICRO’S PRODUCTS ARE NOT INTENDED FOR USE IN MEDICAL,LIFE SAVING, OR LIFE-SUSTAINING APPLICATIONS.
上傳時間： 2013-10-22
上傳用戶：JamesB
Stellaris(群星)單片機加上32KB串行SRAM(英) INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH LUMINARY MICRO PRODUCTS. NO LICENSE,EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THISDOCUMENT. EXCEPT AS PROVIDED IN LUMINARY MICRO’S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS,LUMINARY MICRO ASSUMES NO LIABILITY WHATSOEVER, AND LUMINARY MICRO DISCLAIMS ANY EXPRESS OR IMPLIEDWARRANTY, RELATING TO SALE AND/OR USE OF LUMINARY MICRO’S PRODUCTS INCLUDING LIABILITY OR WARRANTIESRELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHTOR OTHER INTELLECTUAL PROPERTY RIGHT. LUMINARY MICRO’S PRODUCTS ARE NOT INTENDED FOR USE IN MEDICAL,LIFE SAVING, OR LIFE-SUSTAINING APPLICATIONS.
上傳時間： 2013-11-22
上傳用戶：lixqiang
單片機入門知識手冊 說到單片機，首先想到的是中央處理器（CPU），學過微型計算機的人都知道，CPU是計算機最核心的部分，它可以完成算術運算和邏輯運算，CPU再配上外部存儲器，輸入輸出單元就構成一臺微型計算機。其實單片機可以看成一臺微型計算機，它具有CPU的功能，并且自身帶有存儲器，帶有輸入輸出接口（如串行UART、AD轉化、PWM控制），單片機配上一些簡單的外圍電路，就可以完成智能控制或數(shù)據(jù)采集等。所以，單片機的英文名叫MCU（Micro Chip Uint），翻譯成中文是微控制單元。 單片機能干什么？通俗一點講，單片機只有兩個功能：一個是數(shù)據(jù)采集，另一個是控制。其實都很好理解，數(shù)據(jù)采集實際上是從外間輸入，如從AD（模數(shù)轉化）口讀入一個電壓值，從串口接收一個數(shù)據(jù)等等。控制實際上是輸出，51單片機有32個IO口，每個IO口可以驅高或驅低，單片機以此來實現(xiàn)對外間的控制。一個單片機系統(tǒng)都可以用下面這個框圖來說明：
上傳時間： 2013-10-26
上傳用戶：zhaoman32
Luminary Micro公司 Stellaris所提供一系列的微模塊是首款基于ARM® Cortex™-M3的模塊.Stellaris LM3S2000系列是針對CAN應用方案而設計的一組芯片，它在群星系列芯片的基礎上擴展了Bocsh CAN網(wǎng)絡技術——短距離工業(yè)網(wǎng)絡里的黃金標準。Stellaris LM3S2000系列芯片還標志著先進的Cortex-M3內核和CAN能力的首次結合運用。
上傳時間： 2013-10-08
上傳用戶：zengduo
Luminary Micro在Stellaris系列微控制器的部分產(chǎn)品中提供了模數(shù)轉換器（ADC）模塊。ADC的硬件分辨率為10位，但由于噪音和其它使精度變小的因素的影響，實際的精度小于10位。本應用文檔提供了一個基于軟件的過采樣技術，從而使轉換結果的有效位數(shù)（ENOB）得到了改善。文檔中描述了對輸入信號執(zhí)行過采樣的方法，以及在精度和整個系統(tǒng)性能上的影響。
上傳時間： 2014-05-07
上傳用戶：drink！
Luminary Micro provides an analog-to-digital converter (ADC) module on some members of theStellaris microcontroller family. The hardware resolution of the ADC is 10 bits; however, due to noiseand other accuracy-diminishing factors, the true accuracy is less than 10 bits. This application noteprovides a software-based oversampling technique, resulting in an improved Effective Number OfBits (ENOB) in the conversion result. This document describes methods of oversampling an inputsignal, and the impact on precision and overall system performance.
標簽： Oversampling Techniques ADC fo
上傳時間： 2013-12-17
上傳用戶：zhyiroy
Luminary Micro Stellaris™ microcontrollers that are equipped with an analog-to-digital converter(ADC), use an innovative sequence-based sampling architecture designed to be extremely flexible,yet easy to use. This application note describes the sampling architecture of the ADC. Sinceprogrammers can configure Stellaris microcontrollers either through the powerful StellarisFamilyDriver Library or through direct writes to the device's control registers, this application note describesboth methods. The information presented in this document is intended to complement the ADCchapter of the device datasheet, and assumes the reader has a basic understanding of howADCsfunction.
標簽： Microcontr Stellaris Using the
上傳時間： 2013-10-14
上傳用戶：blans
SPCE061A采用的內核 SPCE061A采用的內核（CPU）為μ‘nSP。 μ‘nSP（讀做micro-n-S-P）是凌陽科技推出的16位微處理器，它的突出特點是較高的處理速度，這就使其有能力進行復雜的數(shù)字信號處理（DSP，Digital Signal Processing）。 μ‘nSP內核由凌陽自主開發(fā)，因而也具備它自己的指令系統(tǒng)。 指令系統(tǒng).61 3.1 指令系統(tǒng)的概述及符號約定.61 3.2 數(shù)據(jù)傳送指令62 3.3 算術運算..66 3.3.1 加法運算..67 3.3.2 減法運算..68 3.3.3 帶進位的加減運算.70 3.3.4 取補運算..70 3.3.5 SPCE061A的乘法指令.71 3.3.6 SPCE061A的n項內積運算指令.71 3.3.7 比較運算(影響標志位N,Z,S,C)..73 3.4 SPCE061A的邏輯運算.74 3.4.1 邏輯與..74 3.4.2 邏輯或..75 3.4.3 邏輯異或..76 3.4.4 測試（TEST）.78 3.4.5 SPCE061A的移位操作.80 3.5 SPCE061A的控制轉移類指令..83 3.6 偽指令86 3.6.1 偽指令的語法格式及特點..87 3.6.2 偽指令符號約定..87 3.6.3 標準偽指令.87 3.6.4 宏定義與調用98 3.6.5 段的定義與調用101 3.6.6 結構的定義與調用..102 3.6.7 過程的定義與調用..106 3.6.8 偽指令的應用舉例..106
標簽： SPCE 061A 061 指令系統(tǒng)
上傳時間： 2013-10-31
上傳用戶：xuanchangri
The μPSD32xx family, from ST, consists of Flash programmable system devices with a 8032 MicrocontrollerCore. Of these, the μPSD3234A and μPSD3254A are notable for having a complete implementationof the USB hardware directly on the chip, complying with the Universal Serial Bus Specification, Revision1.1.This application note describes a demonstration program that has been written for the DK3200 hardwaredemonstration kit (incorporating a μPSD3234A device). It gives the user an idea of how simple it is to workwith the device, using the HID class as a ready-made device driver for the USB connection.IN-APPLICATION-PROGRAMMING (IAP) AND IN-SYSTEM-PROGRAMMING (ISP)Since the μPSD contains two independent Flash memory arrays, the Micro Controller Unit (MCU) can executecode from one memory while erasing and programming the other. Product firmware updates in thefield can be reliably performed over any communication channel (such as CAN, Ethernet, UART, J1850)using this unique architecture. For In-Application-Programming (IAP), all code is updated through theMCU. The main advantage for the user is that the firmware can be updated remotely. The target applicationruns and takes care on its own program code and data memory.IAP is not the only method to program the firmware in μPSD devices. They can also be programmed usingIn-System-Programming (ISP). A IEEE1149.1-compliant JTAG interface is included on the μPSD. Withthis, the entire device can be rapidly programmed while soldered to the circuit board (Main Flash memory,Secondary Boot Flash memory, the PLD, and all configuration areas). This requires no MCU participation.The MCU is completely bypassed. So, the μPSD can be programmed or reprogrammed any time, anywhere, even when completely uncommitted.Both methods take place with the device in its normal hardware environment, soldered to a printed circuitboard. The IAP method cannot be used without previous use of ISP, because IAP utilizes a small amountof resident code to receive the service commands, and to perform the desired operations.
標簽： Demonstration 3200 USB for
上傳時間： 2014-02-27
上傳用戶：zhangzhenyu
