MISRA (The Motor Industry Software Reliability Association 汽車(chē)工業(yè)軟件可靠性聯(lián)會(huì)) 是位于英國(guó)的一個(gè)跨國(guó)汽車(chē)工業(yè)協(xié)會(huì)，其成員包括了大部分歐美汽車(chē)生產(chǎn)商。其核心使命是為汽車(chē)工業(yè)提供服務(wù)和協(xié)助，幫助廠方開(kāi)發(fā)安全的、高可靠性的嵌入式軟件。這個(gè)組織最出名的成果是所謂的MISRA C Coding Standard，這一標(biāo)準(zhǔn)中包括了127條C語(yǔ)言編碼標(biāo)準(zhǔn)，通常認(rèn)為，如果能夠完全遵守這些標(biāo)準(zhǔn)，則你的C代碼是易讀、可靠、可移植和易于維護(hù)的。最近很多嵌入式開(kāi)發(fā)者都以MISRA C來(lái)衡量自己的編碼風(fēng)格，比如著名的uC/OS-II就得意地宣稱自己99％遵守MISRA標(biāo)準(zhǔn)。而《嵌入式開(kāi)發(fā)雜志》也專門(mén)載文號(hào)召大家學(xué)習(xí)。編碼規(guī)范通常是一個(gè)公司自定的“土政策”，居然有人去做標(biāo)準(zhǔn)，而且還得到廣泛的認(rèn)可，這不禁引起我強(qiáng)烈的興趣。可惜這份標(biāo)準(zhǔn)的文本需要花錢(qián)去買(mǎi)，而且短短幾十頁(yè)，要價(jià)非常昂貴。MISRA在網(wǎng)上公布了一些文檔，其中有關(guān)于MISRA C Coding Standard的Clarification報(bào)告，從中間你可以大致猜到MISRA標(biāo)準(zhǔn)本身是什么。
標(biāo)簽： Association Reliability Industry Software
上傳時(shí)間： 2013-12-27
上傳用戶：wangzhen1990
Each arc of a binary-state network has good/bad states. The system Reliability, the probability that source s communicates with sink t, can be computed in terms of minimal paths (MPs). An MP is an ordered sequence of arcs from s to t that has no cycle. Note that a minimal path is different from the so-called minimum path. The latter is a path with minimum cost.
標(biāo)簽： binary-state Reliability probability network
上傳時(shí)間： 2015-12-04
上傳用戶：xcy122677
misra (The Motor Industry Software Reliability Association 汽車(chē)工業(yè)軟件可靠性聯(lián)會(huì)) 是位于英國(guó)的一個(gè)跨國(guó)汽車(chē)工業(yè)協(xié)會(huì)，其成員包括了大部分歐美汽車(chē)生產(chǎn)商。其核心使命是為汽車(chē)工業(yè)提供服務(wù)和協(xié)助，幫助廠方開(kāi)發(fā)安全的、高可靠性的嵌入式軟件。這個(gè)組織最出名的成果是所謂的misra C Coding Standard，這一標(biāo)準(zhǔn)中包括了127條C語(yǔ)言編碼標(biāo)準(zhǔn)，通常認(rèn)為，如果能夠完全遵守這些標(biāo)準(zhǔn)，則你的C代碼是易讀、可靠、可移植和易于維護(hù)的。最近很多嵌入式開(kāi)發(fā)者都以misra C來(lái)衡量自己的編碼風(fēng)格，比如著名的uC/OS-II就得意地宣稱自己99％遵守misra標(biāo)準(zhǔn)。
標(biāo)簽： Association Reliability Industry Software
上傳時(shí)間： 2013-12-22
上傳用戶：yuanyuan123
Get more out of your legacy systems: more performance, functionality, Reliability, and manageability Is your code easy to change? Can you get nearly instantaneous feedback when you do change it? Do you understand it? If the answer to any of these questions is no, you have legacy code, and it is draining time and money away from your development efforts.
標(biāo)簽： more functionality manageability performance
上傳時(shí)間： 2013-12-13
上傳用戶：semi1981
This document was developed under the Standard Hardware and Reliability Program (SHARP) TechnologyIndependent Representation of Electronic Products (TIREP) project. It is intended for use by VHSIC HardwareDescription Language (VHDL) design engineers and is offered as guidance for the development of VHDL modelswhich are compliant with the VHDL Data Item Description (DID DI-EGDS-80811) and which can be providedto manufacturing engineering personnel for the development of production data and the subsequent productionof hardware. Most VHDL modeling performed to date has been concentrated at either the component level orat the conceptual system level. The assembly and sub-assembly levels have been largely disregarded. Under theSHARP TIREP project, an attempt has been made to help close this gap. The TIREP models are based upon lowcomplexity Standard Electronic Modules (SEM) of the format A configuration. Although these modules are quitesimple, it is felt that the lessons learned offer guidance which can readily be applied to a wide range of assemblytypes and complexities.
標(biāo)簽： Modelling Guide Navy VHDL
上傳時(shí)間： 2014-12-23
上傳用戶：xinhaoshan2016
This application note provides a detailed description of themetastable behavior in PLDs from both circuit and statisticalviewpoints. Additionally, the information on the metastablecharacteristics of Cypress PLDs presented here can help youachieve any desired degree of Reliability.
標(biāo)簽： PLD 亞穩(wěn)態(tài)
上傳時(shí)間： 2013-10-23
上傳用戶：gtzj
Portable, battery-powered operation of electronic apparatushas become increasingly desirable. Medical, remotedata acquisition, power monitoring and other applicationsare good candidates for battery operation. In some circumstances,due to space, power or Reliability considerations,it is preferable to operate the circuitry from a single 1.5Vcell. Unfortunately, a 1.5V supply eliminates almost alllinear ICs as design candidates. In fact, the LM10 opamp-reference and the LT®1017/LT1018 comparators arethe only IC gain blocks fully specifi ed for 1.5V operation.Further complications are presented by the 600mV dropof silicon transistors and diodes. This limitation consumesa substantial portion of available supply range, makingcircuit design diffi cult. Additionally, any circuit designedfor 1.5V operation must function at end-of-life batteryvoltage, typically 1.3V. (See Box Section, “Componentsfor 1.5V Operation.”)
標(biāo)簽： Circuitry Operation Single 1017
上傳時(shí)間： 2013-12-20
上傳用戶：Wwill
Linear Technology’s high performance battery management ICsenable long battery life and run time, while providing precision charging control, constantstatus monitoring and stringent battery protection. Our proprietary design techniques seamlesslymanage multiple input sources while providing small solution footprints, faster charging and100% standalone operation. Battery and circuit protection features enable improved thermalperformance and high Reliability operation.
上傳時(shí)間： 2013-10-13
上傳用戶：yyq123456789
Portable, battery-powered operation of electronic apparatushas become increasingly desirable. Medical, remotedata acquisition, power monitoring and other applicationsare good candidates for batteryoperation. In some circumstances,due to space, power or Reliability considerations,it is preferable to operate the circuitry from a single 1.5Vcell. Unfortunately, a 1.5V supply eliminates almost alllinear ICs as design candidates. In fact, the LM10 opamp-reference and the LT®1017/LT1018 comparators arethe only IC gain blocks fully specifi ed for 1.5V operation.Further complications are presented by the 600mV dropof silicon transistors and diodes. This limitation consumesa substantial portion of available supply range, makingcircuit design diffi cult. Additionally, any circuit designedfor 1.5V operation mustfunction at end-of-life batteryvoltage, typically 1.3V. (See Box Section, “Componentsfor 1.5V Operation.”)
標(biāo)簽： Circuitry Operation Single Cell
上傳時(shí)間： 2013-10-30
上傳用戶：hz07104032
Features: High efficiency, high Reliability, low cost AC input range selected by switch 100% full load burn-in test Protections: Short circuit / Over load Fixed switching frequency at 25KHz Cooling by free air convection 1 year warranty Dimensions: 199*98*38mm (L*W*H)
標(biāo)簽： Switchin Output Single SKS
上傳時(shí)間： 2013-10-30
上傳用戶：taa123456
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