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Realizes - en.51rd.net based on the RS-485 main line’s automobile four round position finder communication function
Thursday, October 30th, 2008 at 15:10 | No commentsCategories: Communication NetworksTags: automobile electron, examination, four rounds locates the, Serial communication, The RS-485, VBShort Content: Abstract: The automobile four round position finder was a distributed computer observation system, this article introduced controlled the MSComm communication through the RS-485 main line and using VB 6.0 ActiveX to control, has realized in the automobile four round position finder single Taiwan PC machine and many monolithic integrated circuit's communication functions.Key word: RS-485; Serial communication; Four rounds localization; VB; Examination 1st, introduction The automobile in the normal speed process, should have changes the operation facile and maintains automatically ... -
With realizes - en.51rd.net based on the FPGA UART controller’s multi-module design
Thursday, October 30th, 2008 at 06:17 | No commentsCategories: EDA/PLDShort Content: The asynchronous serial communication request's transmission line are few, the reliability is high, the transmitting range is far, is widely applied in the microcomputer and the peripheral device data exchange. Realizes the serial port correspondence mainly to need to complete two parts of work: The serial port level switch into the equipment circuit wafer's operate level, namely realizes the RS-232 level and the TTL/CMOS level transformation; Receives and examines the serial data, turns the data parallel and ... -
RS-232 serial communication interference elimination noise design method analysis
Wednesday, October 29th, 2008 at 23:37 | No commentsCategories: Communication NetworksShort Content: 1 communication link's insulation design method The RS-232 big noise (disturbance) the allowance may cause the connection to work reliably, avoids to adding to the data error which by exterior in the wire the noise causes. In has filled in the electronic noise connection environment, the insulation may the noise precaution between junction circuit's coupling. The insulation through divides into an electric circuit each one independent block to carry on the work. These use light and the magnetic coupling transmit the ... -
Serial communication system’s antijamming design
Wednesday, October 29th, 2008 at 05:50 | No commentsCategories: Communication NetworksShort Content: The electrical power system movement's security or not had the close relationship with the system running status then, regarding the electric power dispatch department, if could real-time grasp the electrical power system various part of running status comprehensively, carried on the long-distance monitor, to guarantee system's security, stable, the economical movement had the very vital significance without doubt. The electric power long-distance monitor uses the serial mode to carry on the correspondence generally, guaranteed that the data the reliable ... -
Based on field bus’s elevator supervisory system design - 51RD Chinese electronic net
Sunday, October 26th, 2008 at 11:10 | No commentsCategories: Communication NetworksShort Content: Abstract: Based on the CAN bussing technique, take AT89C51 as the core, uses Intel82526 and the PCA82C250 constitution elevator supervisory system, through the master-control unit and the sedan theater box, correspondence between the entrance hall controller's, has completed to the elevator the control, and may carry on the long-distance monitoring. The conflict which appears to the communication in uses the non-destructive arbitration the method solution. Key word: CAN main line; Serial communication; Elevator In the modern society, the ... -
Based on C8051F020 hydraulic pressure synthesis gathering system design
Monday, October 20th, 2008 at 18:17 | No commentsCategories: SCMShort Content: Abstract: For to parameters and so on hydraulic equipment's speed, pressure, current capacity carries on the online examination, we have independently designed a set of hydraulic pressure project synthesis gathering system. This system uses new monolithic integrated circuit C8051F020 to carry on the data multichannel gathering and A/D transforms, and outputs the large screen LCD colored liquid crystal to carry on demonstrations and so on data, curve, histogram; Meanwhile delivers through the RS-485 communication the data the superior machine, thus ... -
Based on monolithic integrated circuit’s correspondence switch’s in long-distance observation system application
Saturday, September 27th, 2008 at 01:49 | No commentsCategories: SCMTags: 8031 monolithic integrated circuit, correspondence standard, correspondence switch, RS-485/232, Serial communicationShort Content: [abstract] uses 8031 monolithic integrated circuit's serial interfaces, the constitution long-distance observation system, realizes to many kinds of parameter site surveys, the long-distance transmission and the centralized processing. Introduced in detail based on monolithic integrated circuit's communication controller design. (3) the CCS central monitoring station controls the organization by the labor to become, realizes to the overall system information integrated management; Realizes the parameter, the information long-distance inquiry and sharing through Internet.3 fire auto alarm system's correspondence solution3.1 fire auto alarm ... -
TMS320VC5402 and PC machine UART research and design
Tuesday, August 19th, 2008 at 23:56 | No commentsCategories: DSPShort Content: 1 introduction TMS320VC5402 by its low cost, the low power loss, resources many characteristics in the correspondence, the control domain obtained the widespread application. On the piece integrated the biggest 192kB storage space (64kB RAM, 64kB ROM, 64kB I/O), has multi-channel serial port TMD,2 cushion serial port BSP, 8 bit parallel host interface HPI, the programmable waiting status generator and so on, definitely may satisfy the data processing and the control request. Is essential what based on 5402 construction's application ... -
Realizes the serial communication with the VHDL language on CPLD
Friday, August 15th, 2008 at 15:42 | No commentsCategories: EDA/PLDShort Content: Introduction Resulted in the development along with the EDA technology, CPLD already obtained the widespread application in many aspects, but the serial communication realizes the long-distance observation important means. This article used the VHDL language to realize the serial communication on CPLD, definitely might be separated from the monolithic integrated circuit use, has overcome monolithic integrated circuit's many shortcomings. Serial port structure and content What this design uses is the asynchronous communication way, may stipulate that the ... -
With realizes - en.51rd.net based on μPD78F0034 monolithic integrated circuit’s rental car fare register’s design
Thursday, August 7th, 2008 at 02:36 | No commentsCategories: SCMShort Content: Abstract: Introduced based on μPD78F0034 the monolithic integrated circuit and the module type structure's rental car fare register's hardware and the software design method, discussed μPD78F0034 monolithic integrated circuit's main feature; Introduced this monolithic integrated circuit and the PC machine serial communication hardware connection method; Simultaneously gave has used the list, the double signal against to cheat the technology to prevent the fare register to cheat realizes the method specifically. Key word: Rental car fare register; μPD78F0034; Serial communication; ...
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