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

Sunday, October 26th, 2008 at 17:50 | No comments

Categories: Communication Networks

Tags: 89C51 the, clock to demonstrate, countdown sign, DS12C887, GPS, measured when receives the

Short Content: 1 introduction     GPS is the Global Positioning System abbreviation, is carries on using the navigation satellite measured when and range finder's global positioning system. It has the precision high, all-weather and whole world coating ability. Applies GPS in the clock countdown system can realize the high accuracy time demonstration function. Based on the GPS high accuracy, the countdown sign are the satellite measured when technical, the computer technology and the communication three organic synthesis. Looked from the functional module ...

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, September 16th, 2008 at 02:32 | No comments

Categories: SCM

Tags: 8031, c51, Clock, DS12C887

Short Content: Abstract: Introduced briefly American DALLAS Corporation's new clock calendar chip DS12C887 function characteristic and the internal control register parameter, has given DS12C887 with 8031 monolithic integrated circuit's electric circuit connection diagrams, simultaneously has given the initialization routine which compiles with C51 and gains the internal time procedure.Key word: Clock monolithic integrated circuit DS12C887 1 component characteristic     The DS12C887 real-time clock chip function is rich, may use for to replace on IBM PC directly clock calendar chip DS12887, simultaneously, its ...