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321: Nios II-based digital audio recording system
Preface SOPC (System On Programmable Chip) technology is the SOC (System On Chip) technology and electronic design automation (EDA) technology product. It can be processors, memory, I / O interface, the hardware co-processor logic and the general u...

322: Link Section inverter pumps in storage tanks of energy-saving applications
A depot of Austria 37KW pump operation now Austrian oil tanks of fuel pump by the pump 4 37KW vertical component, is mainly responsible for the work of four of the eight Taichung point loading to a tanker loading for the measurement of work. Each o...

323: Frequency transformation of the cement kiln application and rehabilitation programs for wind
First, for the wind system frequency With <sets of VVVF control device> to replace or adjust the air board to regulate the degree of valve opening amount leaked, and with the ratio of air volume (that is, the utilization of air-conditioning) ...

324: ARM embedded system development process of the realization of the sending
To send data through the network adapter, the upper protocol entity function call hard_start_xmit (), in our driver this function is mapped into DM9000_wait_to_send_packet () function, as it name in wait, as indicated by the completion of this funct...

325: A long-range health of the family-oriented health care system
1 Introduction Remote medical care is the communication network through the physical and medical remote signal sent to the custody of the Center for analysis and opinions are given a diagnosis of technical means. He was with the computer technology...

326: Phase-locked loop based on a highly sensitive technique to detect vehicles
1 Introduction Department at the crossroads, in order to avoid traffic congestion and ensure traffic safety, transport vehicles must be in accordance with the provisions of Road Road rather than more. Therefore, we must adopt the appropriate sensin...

327: TMS320C5416 based on the G.729 voice codec algorithm optimization and realization of
With the multi-media information technology and the rapid development of network technology, the rapid growth of information, so that channel has become increasingly valuable resources. In order to channel the limited resources of the transmission a...

328: ARM926EJ-S based on the MPEG-4 decoder optimization of soft and Implementation
1 Introduction MPEG-4 video compression standard has been since the advent of widespread concern. In recent years, embedded applications of MPEG-4 player to achieve has become a hot topic of many manufacturers. Dedicated MPEG-4 chip is very popular...

329: VxWorks embedded operating system based on the multi-task concurrent programming (2) - Mission Control
4 tasks and task status VxWorks real-time kernel provides the basic Wind multi-tasking environment. Of users, the macro level, it seems, in the implementation of a number of tasks at the same time. The very nature, at the micro, the system kernel t...

330: VxWorks embedded operating system based on the multi-task concurrent programming (3) - Task Scheduling
VxWorks support for task scheduling in two ways: (1) priority-based scheduling to seize (Preemptive Priority Based Scheduling) Seize the correction in the implementation of the task can be interrupted to allow another task to run, it can improve t...

331: VxWorks embedded operating system based on the multi-task concurrent programming (4) - A communication task
VxWorks provides a wide range of inter-task communication, there are: (1) shared memory (Shared Memory), for simple data sharing; VxWorks as a result of the existence of all the tasks on a single linear address space, it can share data between tas...

332: VxWorks embedded operating system based on the multi-task concurrent programming (4) - Communications between tasks B
Pipeline can be seen as drive pipeDrv management by virtual I / O devices, the use of basic I / O system interface can read, write, and operation of pipelines, these functions including read, write, open, close, ioctl, and select and so on. And the ...

333: LWIP-based embedded system design and implementation of network
0 Introduction ARM (Advanced RISC Machines) is the field in the embedded the most widely used RISC microprocessor structure to low-cost, low-power, high-performance characteristics of the application of embedded systems occupy the leading position ...

334: VxWorks embedded operating system based on the multi-task concurrent programming (5) - interrupted with the task of
Interrupt handling system of the entire operation of the highest priority code, you can seize any task-level code to run. Interrupt mechanism is to run multi-tasking environment is based on real-time assurance system. Almost all real-time multi-task...

335: Vehicle Traveling Data Recorder System Design and Implementation of AT89C51ED2
With the development of society, becoming increasingly popular vehicle, as vehicle ownership increases, the probability of traffic accidents have increased, the incident after the traditional methods used to analyze, judge, there are certain difficu...

336: Embedded Linux-based paperless recorder communication design
Introduction In the industrial automation and control system, the recorder plays an important role, it can be real-time acquisition, monitoring and recording some of the impact of process and product quality parameters, are widely used in petrochem...

337: The basis of embedded audio processing
Audio DAC Traditional D / A conversion method of weighted resistors, R-2R ladder network and zero cross distortion. As the A / D in the case, Σ-Δ design rule of the D / A conversion of the field. These converters can accept 16-bit 44.1kHz signal,...

338: Embedded motherboard in medical diagnostic B-Application
Ultrasonic diagnostic techniques is an economic, practical, repeatable, noninvasive means of inspection, with non-invasive, does not affect the human body, the advantages of wide adaptability. In particular, ultrasound imaging technology as the cent...

339: CPLD-based visual image sensor system design
At present, research on the visual system has become a hot spot, but also to develop the system for reference. However, these systems are PC-based, algorithm and hardware as a result of the complexity of the structure of its small-scale application ...

340: With co-processor to improve IJLC / OS n, Il of the real-time
Introduction μC / OS-II supports up to 63 tasks, and support for semaphores, mailboxes, message queues and other inter-process communication mechanism; At the same time, users can demand function for the kernel module cutting. The μC / OS-II is a...


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