51 Research and Design, Electronic Engineers website - Embedded Systems, MCU, DSP, EDA, Test and Measurement, Components, Communications, Power, Microelectronics, Semiconductors

Saturday, November 29th, 2008 at 14:55 | No comments

Categories: EDA/PLD

Tags: bus interface, CAN, microprocessor, SOPC

Short Content: The abstract introduced briefly Shaoshan 3 4000 are the electric locomotive has the contact control malpractice and the non-contact logical control module LCM basic principle; According to the locomotive control circuit function, designs fu gathers the standard interface standard special-purpose IP; Based on the SOPC design concept, quoted SOPC Builder to integrate 32 NiosII microprocessors, logical control unit IP, CAN on 1 piece of FPGA bus control unit IP and some essential periphery module, gave the logical control module the ...

Wednesday, October 29th, 2008 at 16:57 | No comments

Categories: Communication Networks

Tags: CAN, PROFIBUS-DP

Short Content: 1 introduction        In the mid-80s, to satisfy the different automated domain the application demand, appeared had the different technical characteristic field bus. Each kind of field bus has own application domain, and tries hard to develop its application domain, expands its technical monopoly scope. But each kind of field bus take or several large-scale Multinational corporations as the background, company's benefit and main line's development is closely linked. These companies compete the result is many kinds of main lines ...

Wednesday, October 22nd, 2008 at 00:25 | No comments

Categories: Communication Networks

Tags: AT89C51CC01, CAN, field bus, gateway, LIN

Short Content: Introduction     Field bus technology already widespread application in industrial control, particularly CAN (Controler Area Nerwork) main line, because has the reliability to be high, the cost low, easy to realize and so on merits, held the big share in field bus's actual project application. Follows the bussing technique development, LIN (Local Interconnect Network) the main line is taking one kind of low cost the serial communication network, its goal is provides the auxiliary function for the existing field bus ...

Tuesday, October 21st, 2008 at 04:25 | No comments

Categories: Communication Networks

Tags: CAN, DSP, hot net monitoring, Network service, scene controller

Short Content: Picking   Wanting: This article introduced with emphasis the CAN main line's in hot net supervisory system application, has designed based on the DSP scene observation hardware system, has formulated the user level communication protocol, and introduced the CAN network service part hardware and the software in detail. Key word: Network service; CAN; Scene controller; DSP; Hot net monitoring Introduction    At present north part of our country many cities already or soon carried on the hot net improvement project, the traditional ...

Tuesday, October 7th, 2008 at 17:21 | No comments

Categories: Communication Networks

Tags: CAN

Short Content:   Abstract: Introduced that the CAN main line and communication protocol J1939, and designs based on CAN main line's multi-ECN communications platform hardware architecture; Elaborated that the node ECN correspondence's software design method, realizes the data communication function under simulation testing's condition. The experiment indicates the platform movement stably reliable.     Key word: CAN main line ECN J1939 agreement communications platform Introduction Along with the integrated circuit and monolithic integrated circuit's on automobile widespread application, on modern automobile's electronic ...

Thursday, September 18th, 2008 at 19:54 | No comments

Categories: SCM

Tags: ARM7, CAN, Embedded system, LPC2131, μC/OS-II

Short Content: Abstract: Has not integrated the CAN controller's processor regarding the interior to be possible through exterior to expand the CAN connection to realize the CAN communication. Take philips ARM7 processor LPC2131 as an example, has given the more general hardware design and μCOS-II realizes the CAN correspondence essential software code based on the embedded real-time operating system.Key word: LPC2131; CAN main line; ARM; μCOS-II; Embedded system     Along with the information technology technology's swift development, the ARM technical program construction takes one ...

Friday, August 15th, 2008 at 14:18 | No comments

Categories: SCM

Tags: CAN

Short Content: Abstract: Based on sharpens the CAN main line network ability the consideration, proposes one novel CAN repeater design method; Elaboration take the LPC2119 controller as core hardware design plan; The multianalysis realizes the process under μC/OSII real-time operating system's software; The speed which possibly exist in view of between repeater's timeliness and the security as well as the main line and the main line does not match the question, the establishment promotion emergency task priority, the establishment dependent event symbolized ...

Saturday, August 9th, 2008 at 00:52 | No comments

Categories: SCM

Tags: CAN

Short Content:     Abstract: Introduces C8051F040 the monolithic integrated circuit interior CAN controller's application. Narrates this controller's constitution and the access mode in detail, points out when the use how to dispose controller's correlation control register, and gives the CAN controller's in application physical level hardware circuit and the application layer software design.     Key word: CAN controller register text object C8051F040 After the monolithic integrated circuit and the CAN bus interfacing's traditional way is CPU and the bus control unit and ...

Sunday, August 3rd, 2008 at 23:20 | No comments

Categories: DSP

Tags: CAN, DSP

Short Content:    The velocity measurement is one of control engineering basic questions. In many situations, measured that the fast signal needs the long-distance range transmission. Realizes this question main method is uses SoC (on piece system) the chip. It brings the rich peripheral device changed about the hardware and software's idea. The build hardware system becomes to the hardware architecture understanding grasps, software's programming also primarily becomes the part establishment from the algorithm establishment primarily, has, the complete characteristic simple and ...