安捷倫科技有限公司（NYSE: A）于2008年1月8日宣布推出應(yīng)用于FlexRay全面觸發(fā)、協(xié)議解碼、調(diào)試和眼圖分析能力測(cè)試的Infiniium系列示波鏡。此測(cè)試解方案允許利用嵌入式微處理器的汽車設(shè)計(jì)師校驗(yàn)其FlexRay信號(hào)的完整性，有效的調(diào)試協(xié)議和信號(hào)整合性。 FlexRay系列總線是帶有時(shí)間觸發(fā)機(jī)制和確定性架構(gòu)的汽車通信總線。設(shè)計(jì)師們可以迅速適應(yīng)此高性能、容錯(cuò)總線，尤其是現(xiàn)今的高端技術(shù)汽車，包括寶馬X5 SUV系列，在其中支持懸架應(yīng)用。由于FlexRay協(xié)議具有容錯(cuò)的特性，F(xiàn)lexRay技術(shù)有望在不久的將來被用于許多安全－關(guān)鍵技術(shù)應(yīng)用上，如線控轉(zhuǎn)向、線控制動(dòng)和空中防撞系統(tǒng)。 基于安捷倫FlexRay分析解決方案的Infiniium支持用戶選擇性標(biāo)準(zhǔn)數(shù)據(jù)級(jí)如：2.5 Mbps, 5.0 Mbps, 10 Mbps. 解碼信息可展示出架構(gòu)ID、循環(huán)號(hào)和FlexRay信號(hào)的有效栽荷。 除FlexRay總線的解碼之外，此新選項(xiàng)在理想的10-MHz FlexRay時(shí)鐘的再同步基礎(chǔ)之上，執(zhí)行軟件時(shí)鐘恢復(fù)功能, 以實(shí)現(xiàn)BSS事件。此恢復(fù)時(shí)間被用于創(chuàng)造和顯示實(shí)時(shí)眼圖。一個(gè)FlexRay實(shí)時(shí)眼可提供FlexRay信號(hào)質(zhì)量的復(fù)合圖，包括系統(tǒng)抖動(dòng)的自動(dòng)測(cè)量?；赥P1, TP2, TP3和TP4要求之上的眼罩，也可被用于自動(dòng)化通過/失敗性測(cè)試。如果眼罩測(cè)試失敗，工程師們可以很方便地打開眼圖，以快速查找失敗錯(cuò)誤的地方。 汽車的嵌入式設(shè)備，包括FlexRay裝置，必須在模擬的極端的環(huán)境艙條件下經(jīng)過測(cè)試。這些極端條件可能包括ECU測(cè)試和在溫度超過100℃下的差分串行總線。在現(xiàn)今典型的有源探測(cè)器中的有源電路不能承受超過55℃的溫度。但是，工程師們可以利用安捷倫1130系列InfiniiMax有源探測(cè)器和N5450A SMP微波延伸電纜擴(kuò)充和代替探測(cè)器的有源放大器，所以其就可將環(huán)境艙置于問題之外。此配置允許工程師們連接InfiniiMax的探測(cè)器頭在-55℃到+155℃范圍之間進(jìn)行點(diǎn)測(cè)試。 更多關(guān)于安捷倫N5402A信息請(qǐng)登錄：www.agilent.com/find/n5402a ，F(xiàn)lexRay測(cè)試系統(tǒng)圖片下載可登錄：www.agilent.com/find/n5402a_images . 關(guān)于FlexRay標(biāo)準(zhǔn)和FlexRay協(xié)會(huì)的信息請(qǐng)登錄www.flexray.com [font=times]original text [/font] [font=times]Agilent Technologies Introduces FlexRay Automotive Application for Infiniium Series Oscilloscopes [/font] [font=times][color=#708090]Agilent Technologies Inc. （NYSE: A） today introduced a measurement application that provides comprehensive FlexRay triggering, protocol decode, debug and eye-diagram analysis capabilities for Infiniium Series oscilloscopes. This measurement solution allows automotive designers who use embedded microprocessors to verify proper signal integrity of their FlexRay signals and effectively debug protocol and signal integrity issues. The FlexRay serial bus is an automotive communication bus with a time-triggered, deterministic architecture. Designers are rapidly adopting this high-performance, fault-tolerant serial bus, especially for today‘s higher-end automobiles, including BMW‘s X5 SUV, where it is being used initially to support a suspension application. Because of the fault-tolerant nature of the FlexRay protocol, FlexRay technology is expected to be used in the near future for many safety-critical applications such as steer-by-wire, brake-by-wire and collision-avoidance systems. The Infiniium-based Agilent FlexRay analysis solution supports user-selectable standard data rates of 2.5 Mbps, 5.0 Mbps, and 10 Mbps. The decoded information shows the frame ID, cycle number and the payload of the FlexRay signal. In addition to decoding the FlexRay bus, this new option performs a software clock recovery based on re-synchronization of an ideal 10-MHz FlexRay clock to each byte start sequence （BSS） event. This recovered clock is used to create and display a real-time eye diagram. A FlexRay real-time eye provides a composite view of the quality of FlexRay signals, including an automatic measure of system jitter. Masks based on TP1, TP2, TP3 or TP4 requirements can also be applied for automatic pass/fail testing. If a mask test fails, engineers can easily "unfold" the eye diagram to quickly locate the failed bit. Automotive embedded devices, including FlexRay devices, must be tested under simulated extreme conditions in environmental chambers. These extreme conditions may include testing ECUs （engine control units） and differential serial buses at temperatures exceeding 100 degrees Celsius. The active circuitry in today‘s typical active probes cannot tolerate temperatures exceeding 55 degrees Celsius. However, engineers can use Agilent 1130 Series InfiniiMax active probes and N5450A SMP microwave extension cables to extend and displace the probe‘s active amplifier so it is outside the environmental chamber. This configuration allows engineers to connect InfiniiMax passive probe heads to test points within the chamber at temperatures ranging from -55 C to +155 C. Additional information about the Agilent N5402A is available at www.agilent.com/find/n5402a. A photo of the FlexRay measurement system is available at www.agilent.com/find/n5402a_images. Information about the FlexRay standard and the FlexRay Consortium can be found at www.flexray.com.[/color][/font]