Title :
Digital Synchronous System for Ultra High-Speed Physical Diagnostic Equipments
Author :
Xue, Ying-Dong ; Bai, Yong-Lin ; Li, Yan
Author_Institution :
Xi´´an Inst. of Opt. & Precision Mech., Chinese Acad. of Sci., Xi´´an, China
Abstract :
A design of the digital synchronous system which is based on FPGA is presented. To reduce the delay of the system logic and enhance the working frequency, the timing constraints have been analyzed. We investigate the influences of the delay of data output (Tco), the delay of combinational logic circuits (Tdelay), the setup time (Tsetup) and the clock cycle (T) on the working frequency, and adopt the method of combinational logic splitting to reduce the LUT cascade connection. As a result, not only is stably running the system at 200 MHz clock realized, but also completely meets the experiment requirements. This system provides a reliable guarantee for controlling on ultra high-speed physical diagnostic system.
Keywords :
field programmable gate arrays; optical logic; FPGA; LUT cascade connection; combinational logic circuits delay; combinational logic splitting; data output delay; digital synchronous system; frequency 200 MHz; system logic delay; ultra high-speed physical diagnostic equipments; ultra high-speed physical diagnostic system; Clocks; Combinational circuits; Control systems; Delay effects; Delay systems; Field programmable gate arrays; Frequency; Logic; Table lookup; Timing;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5503997
