in this paper, a class of the PCI data acquisition card using the professional interface chip PCI9054 and FPGA was designed, and the read and write transfer of PCI bus protocol were analyzed and implemented. Firstly, the architecture of system was proposed based on analysis of present design. Then, the detail design procedures are given, especially the logic control module and the SDRAM controller module. Its used the algorithmic state machine for the design of the modules in the FPGA. The ASM is the advanced state machine in present, and its worth to study. This paper used the hardware language to finish the entire programmer in the FPGA. The simulation results shown that the design proposed in this paper performed well.
ZrO2 thin films were deposited on glass substrates via RF magnetron sputtering technique and post-deposition annealing treatment.The films transmittance and surface structure were investigated by means of Ultraviolet spectrophotometer, AFM and XRD. The effect of annealing on the optical properties of the films has been studied as well.The research result indicates that the size of ZrO2 film grain obviously gets bigger, the surface is more smooth and transmission rate increases after 800°C, annealing 30min.
AlN dielectric thin films were deposited on N type Si(100) substrate by reactive radio frequency magnetron sputtering that directly bombardment AlN target under different sputtering-power and total pressure. The crystal structure,composition,surface and refractive index of the thin films were studied by XRD, SEM, AFM and elliptical polarization instrument. The results show that the surface and refractive of the thin films strongly depends on the sputtering-power and total pressure,the good uniformity and smoothness is found at 230 W, Ar flow ratio 5.0 LAr/sccm, substrate temperature 100°Cand 1.2 Pa. The crystal structure of the as-deposited thin-films is amorphous,then it transforms from blende structure to wurtzite structure as the rapid thermal annealing(RTA) temperature changes from 600 to 1200°C. The refractive index also increases with the RTA temperature it is increasing significantly from 800 to 1000°C.
The design and implementation of video-decoding system are analyzed. And then, the video decoding and data processing scheme based on the FPGA and video-decoding chip ADV7181B is proposed. The I2C interface, used to configurate the register parameters of video-decoding chip ADV7181B, and the decoder of ITU-656, the storage of YCrCb, conversion between YCrCb and RGB and the display of VGA are implemented using FPGA. The all sub modules were described using Verilog HDL in the design, and merged in a module after they were emulated successfully. The module was come through and verified. The experiments results show that the system designed in this paper performed well.
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