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

Thursday, September 18th, 2008 at 06:17 | No comments

Categories: SCM

Tags: countdown sign, demonstration, DS12C887, GP, SMCS-51

Short Content: Abstract: Elaborates the GPS precise timing system's basic constitution and the system function, introduced that realizes the method take the MCS-51 monolithic organization as the core high accuracy time display system's concrete hardware, elaborated in detail the system each kind of software module's design mentality and carries out the flow.Key word: Global positioning system; MCS-51; DS12C887; Design 1 introduction      GPS is the Global Positioning System abbreviation, is carries on using the navigation satellite measured when and range finder's global positioning ...

Tuesday, August 12th, 2008 at 01:57 | No comments

Categories: EDA/PLD

Tags: ASIC, Chinese character, demonstration, EDA, FPGA, Hypothesized component, VHDL language

Short Content: Abstract: This article mainly discussed has used the EDA tool to design the Chinese character trundle monitor's technical question. In the article first described based on the scene programmable gate array (FPGA) hardware circuit; Then studied on 8×8LED the light emitter diode lattice had demonstrated that the trundle Chinese character the principle, and gave described its function VHDL language programming based on ALTERA parametrization model base LPM; Finally for uses the EDA tool software processing to demonstrate that the data ...

Monday, August 4th, 2008 at 21:33 | No comments

Categories: DSP

Tags: demonstration, DSP, image gathering, iris recognition system, TMS320DM642

Short Content: 1 introduction         In the informationization modern society, the information security question receives people's attention day by day highly. Status distinction methods and so on traditional password, smart card, because it easy to forget or easy to pretend and so on shortcomings not to meet modern society's demand. In recent years emerged the biological features recognition technology had the very good reliability. The iris takes the important status distinction characteristic, has uniqueness, the stability, to be possible gathering and merits ...