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EVENT-drived

ARMCoreSight跟蹤調試技術的研究與應用

隨著嵌入式系統的發展、嵌入式應用的不斷增長以及嵌入式系統復雜性不斷提高，嵌入式軟件的規模和復雜性也不斷提高。在目前的嵌入式系統開發中間，軟件開發占80％以上的工作量，嵌入式軟件的質量和開發周期對產品的最終質量和上市時間起到決定性的影響。因此，為了保持產品競爭力，支持用戶對嵌入式設備進行快速、高效的軟件開發，嵌入式的開發人員迫切需要更加強大的調試技術和手段來為開發復雜的嵌入式應用提供幫助；同時，強有力的嵌入式軟件開發工具也是基本的必備條件。本文結合ARM公司RVDS集成開發環境中調試模塊組成部分Event Viewer系統的開發，實現了對通過原始數據源采集到的CoreSight跟蹤數據的完整實時解析，并最終在顯示模塊中將其包含的信息以可視化的形式直觀地展現給用戶，以供后續的程序性能分析和嵌入式軟件系統調試。研究了與本課題相關的一些技術，包括CoreSight調試體系結構、嵌入式常見調試技術、Eclipse平臺體系架構及其插件擴展點技術。在研究嵌入式集成開發環境國內外現狀及其發展趨勢的基礎上，結合Event Viewer系統的整體需求，介紹了系統的總體設計及其功能模塊劃分，并給出了系統的第三方擴展設計。討論了系統解析模塊的設計與實現。在分析CoreSight跟蹤數據解析流程的基礎上，對系統中解析模塊進行了詳細設計，并完成了基于ITM數據流的解析實現。結合系統的功能需求和解析模塊的設計，本文利用Eclipse插件擴展點機制，劃分解析模塊提供對外擴展，實現了系統向第三方產品提供商提供擴展接口的功能，第三方可以在此基礎上提供自己的解析處理。利用Eclipse View擴展點和SWT/JFace技術，實現了對跟蹤數據的前臺展示，包括Text、Event、Analog三種類型；本文著重討論了Analog展示部分的詳細設計和實現，將解析后得到的Analog數據信息以實時曲線圖的形式展現給客戶，提供對Analog數據變化趨勢的直觀描述。

標簽： ARMCoreSight 調試技術

上傳時間： 2013-04-24

上傳用戶：www240697738
行為模式和同步事件調度操作

The Reactor design pattern handles service requests that are delivered concurrently to an application by one or more clients. Each service in an application may consist of serveral methods and is represented by a separate event handler that is responsible for dispatching service-specific requests.

標簽： 模式操作調度

上傳時間： 2013-10-15

上傳用戶：libinxny
電信、數據通信和工業電源產品

In industrial applications, high voltage power supply spikes with durations ranging from a few microseconds to hundreds of millisecondsare commonly encountered. The electronics in these systems must not only survive transient voltage spikes, but in many cases alsooperate reliably throughout the event.

標簽： 電信數據通信工業電源產品

上傳時間： 2013-11-07

上傳用戶：redmoons
高效LCD液晶照明技術

In August of 1992 LTC published Application Note 49, “Illumination Circuitry for Liquid Crystal Displays.” One notable aspect of this event is that it generated more response than all previous LTC application notes combined. This level of interest, along with significant performance advances since AN-49’s appearance, justifies further discussion of LCD backlighting circuitry.

標簽： LCD 液晶照明技術

上傳時間： 2013-11-19

上傳用戶：lanjisu111
基于PIC16C71的數字水溫配制閥的設計

　　設計了一種基于PIC16C71單片機的數字水溫配制閥。該配制閥采用NTC熱敏電阻作溫度傳感器，與固定電阻組成簡單分壓電路作為水溫測量電路，利用PIC16C71單片機內置的8位A/D轉換器把熱敏電阻上的模擬電壓轉換為數字量，PIC16C71單片機控制直流電機驅動混水閥調節冷熱水的混合比例實現水溫調節。給出了控制電路圖，對水溫測量電路的參數選擇和測溫精度作了詳細討論。實驗和分析表明，選用阻值較大的NTC熱敏電阻和分壓電阻可較好地解決熱敏電阻因功耗較大造成的熱擊穿問題。　　Abstract: 　　A digital valve for controlling water temperature based on PIC16C71 was presented in this paper.A bleeder circuit which consisted of a NTC thermistor as temperature sensor and a fixed resistance was designed as water temperature measuring circuit.The analog voltage on the thermistor was converted into digital signal by a 8-bit A/D converter embedded in PIC16C71. Based on the digital signal， the MCU PIC16C71 drived the valve by a DC motor to adjust the water temperature through adjusting the proportion of hot water and cold water.The circuit diagram of controller was given，the principle，the component parameters and the accuracy of measuring temperatures were also dissertated in detail. It was found by experiment and analysis that thermal breakdown of thermistor caused by high power could be solved by selecting thermistor and fixed resistance with high impedance value.

標簽： PIC 16C C71 16

上傳時間： 2013-11-08

上傳用戶：Yue Zhong
8-bit I2C-bus and SMBus IO port with reset

The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus and I2C-bus applications. The PCA9557 consists of an 8-bit input port register, 8-bit output port register, and an I2C-bus/SMBus interface. It has low current consumption and a high-impedance open-drain output pin, IO0. The system master can enable the PCA9557’s I/O as either input or output by writing to the configuration register. The system master can also invert the PCA9557 inputs by writing to the active HIGH polarity inversion register. Finally, the system master can reset the PCA9557 in the event of a time-out by asserting a LOW in the reset input. The power-on reset puts the registers in their default state and initializes the I2C-bus/SMBus state machine. The RESET pin causes the same reset/initialization to occur without de-powering the part.

標簽： C-bus SMBus reset port

上傳時間： 2014-01-18

上傳用戶：bs2005
An easy way to work with Exter

Internal Interrupts are used to respond to asynchronous requests from a certain part of themicrocontroller that needs to be serviced. Each peripheral in the TriCore as well as theBus Control Unit, the Debug Unit, the Peripheral Control Processor (PCP) and the CPUitself can generate an Interrupt Request.So what is an external Interrupt?An external Interrupt is something alike as the internal Interrupt. The difference is that anexternal Interrupt request is caused by an external event. Normally this would be a pulseon Port0 or Port1, but it can be even a signal from the input buffer of the SSC, indicatingthat a service is requested.The User’s Manual does not explain this aspect in detail so this ApNote will explain themost common form of an external Interrupt request. This ApNote will show that there is aneasy way to react on a pulse on Port0 or Port1 and to create with this impulse an InterruptService Request. Later in the second part of the document, you can find hints on how todebounce impulses to enable the use of a simple switch as the input device.Note: You will find additional information on how to setup the Interrupt System in theApNote “First steps through the TriCore Interrupt System” (AP3222xx)1. It would gobeyond the scope of this document to explain this here, but you will find selfexplanatoryexamples later on.

標簽： Exter easy work with

上傳時間： 2013-10-27

上傳用戶：zhangyigenius
LabVIEW for Everyone(經典英文書籍)

The #1 Step-by-Step Guide to labviewNow Completely Updated for labview 8! Master labview 8 with the industry's friendliest, most intuitive tutorial: labview for Everyone, Third Edition. Top labview experts Jeffrey Travis and Jim Kring teach labview the easy way: through carefully explained, step-by-step examples that give you reusable code for your own projects! This brand-new Third Edition has been fully revamped and expanded to reflect new features and techniques introduced in labview 8. You'll find two new chapters, plus dozens of new topics, including Project Explorer, AutoTool, XML, event-driven programming, error handling, regular expressions, polymorphic VIs, timed structures, advanced reporting, and much more. Certified labview Developer (CLD) candidates will find callouts linking to key objectives on NI's newest exam, making this book a more valuable study tool than ever. Not just what to d why to do it! Use labview to build your own virtual workbench Master labview's foundations: wiring, creating, editing, and debugging VIs; using controls and indicators; working with data structures; and much more Learn the "art" and best practices of effective labview development NEW: Streamline development with labview Express VIs NEW: Acquire data with NI-DAQmx and the labview DAQmx VIs NEW: Discover design patterns for error handling, control structures, state machines, queued messaging, and more NEW: Create sophisticated user interfaces with tree and tab controls, drag and drop, subpanels, and more Whatever your application, whatever your role, whether you've used labview or not, labview for Everyone, Third Edition is the fastest, easiest way to get the results you're after!

標簽： Everyone LabVIEW for 英文

上傳時間： 2013-10-14

上傳用戶：shawvi
realview mdk 3.2 下載

1.增加的設備支持： Atmel AT91SAM9Rxx Cirrus Logic CS7401xx-IQZ Luminary Micro LM3S576x, LM3S5752, LM3S5747, LM3S573x, LM3S5662, LM3S5652, LM3S5632, LM3S3759, LM3S3749, and LM3S3739 NXP LPC32XX and LPC2460 STMicroelectronics STR912FAZ4X, STR912FAW4X, STR911FAW4X, STR911FAM4X, STR910FAW32, and STR910FAZ32 2.修改了NXP LPC23XX/24XX的頭文件庫 3.增加了ST-LINK II的調試支持 4.增加了對Cortex-M3 內核芯片的RTX Event Viewer 的支持 5.增加了MCBSTM32: STM32 FLASH OPTION BYTES PROGRAMMING 6.增加了ULINK2對Cortex-M3的SWV功能的調試 7.增強了使用GNU在MDK下調試M1,M3,ARM7,ARM9的調試功能（ Using μVision with CodeSourcery GNU ARM Toolchain.） 8.增加了大量經典開發板例程 Boards目錄列表： ├─Embest 深圳市英蓓特公司開發板例程 │ ├─AT91EB40X-40008 │ ├─S3CEB2410 │ ├─ATEBSAM7S │ ├─LPC22EB06-I │ ├─LPCEB2000-A │ ├─LPCEB2000-B │ ├─LPCEB2000-S │ ├─str710 │ ├─str711 │ ├─str730 │ ├─str750 │ ├─STR912 │ ├─STM32V100 │ ├─STM32R100 │ ├─ATEB9200 ├─ADI ADI半導體的芯片例程 │ ├─ADuC702X │ └─ADuC712x ├─Atmel Atmel半導體的芯片例程 │ ├─AT91RM9200-EK │ ├─AT91SAM7A3-EK │ ├─AT91SAM7S-EK │ ├─AT91SAM7SE-EK │ ├─AT91SAM7X-EK │ ├─AT91SAM9260-EK │ ├─AT91SAM9261-EK │ ├─AT91SAM9263-EK ├─Keil Keil公司的開發板例程 │ ├─MCB2100 │ ├─MCB2103 │ ├─MCB2130 │ ├─MCB2140 │ ├─MCB2300 │ ├─MCB2400 │ ├─MCB2900 │ ├─MCBLM3S │ ├─MCBSTM32 │ ├─MCBSTR7 │ ├─MCBSTR730 │ ├─MCBSTR750 │ └─MCBSTR9 ├─Luminary Luminary半導體公司的芯片例程 │ ├─ek-lm3s1968 │ ├─ek-lm3s3748 │ ├─ek-lm3s3768 │ ├─dk-lm3s101 │ ├─dk-lm3s102 │ ├─dk-lm3s301 │ ├─dk-lm3s801 │ ├─dk-lm3s811 │ ├─dk-lm3s815 │ ├─dk-lm3s817 │ ├─dk-lm3s818 │ ├─dk-lm3s828 │ ├─ek-lm3s2965 │ ├─ek-lm3s6965 │ ├─ek-lm3s811 │ └─ek-lm3s8962 ├─NXP NXP半導體公司的芯片例程 │ ├─LH79524 │ ├─LH7A404 │ └─SJA2510 ├─OKI OKI半導體公司的芯片例程 │ ├─ML674000 │ ├─ML67Q4003 │ ├─ML67Q4051 │ ├─ML67Q4061 │ ├─ML67Q5003 │ └─ML69Q6203 ├─Samsung Samsung半導體公司的芯片例程 │ ├─S3C2440 │ ├─S3C44001 │ └─S3F4A0K ├─ST ST半導體公司的芯片例程 │ ├─CQ-STARM2 │ ├─EK-STM32F │ ├─STM32F10X_EVAL │ ├─STR710 │ ├─STR730 │ ├─STR750 │ ├─STR910 │ └─STR9_DONGLE ├─TI TI半導體公司的芯片例程 │ ├─TMS470R1A256 │ └─TMS470R1B1M ├─Winbond Winbond半導體公司的芯片例程 │ └─W90P710 └─ ...

標簽： realview mdk 3.2

上傳時間： 2013-10-13

上傳用戶：zhangliming420
基于（英蓓特）STM32V100的看門狗程序

This example shows how to update at regulate period the WWDG counter using theEarly Wakeup interrupt (EWI). The WWDG timeout is set to 262ms, refresh window set to 41h and the EWI isenabled. When the WWDG counter reaches 40h the EWI is generated and in the WWDGISR the counter is refreshed to prevent a WWDG reset and led connected to PC.07is toggled.The EXTI line9 is connected to PB.09 pin and configured to generate an interrupton falling edge.In the NVIC, EXTI line9 to 5 interrupt vector is enabled with priority equal to 0and the WWDG interrupt vector is enabled with priority equal to 1 (EXTI IT > WWDG IT). The EXTI Line9 will be used to simulate a software failure: once the EXTI line9event occurs (by pressing Key push-button on EVAL board) the correspondent interruptis served, in the ISR the led connected to PC.07 is turned off and the EXTI line9pending bit is not cleared. So the CPU will execute indefinitely EXTI line9 ISR andthe WWDG ISR will never be entered(WWDG counter not updated). As result, when theWWDG counter falls to 3Fh the WWDG reset occurs.If the EXTI line9 event don抰 occurs the WWDG counter is indefinitely refreshed inthe WWDG ISR which prevent from WWDG reset. If the WWDG reset is generated, after resuming from reset a led connected to PC.06is turned on. In this example the system is clocked by the HSE(8MHz).

標簽： V100 STM 100 32V

上傳時間： 2013-11-11

上傳用戶：gundamwzc