dpll_waveforms.html
来自「DDs直接数字频率合成器的源代码」· HTML 代码 · 共 14 行
HTML
14 行
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<title>Sample Waveforms for DPLL.vhd </title>
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<h2><CENTER>Sample behavioral waveforms for design file DPLL.vhd </CENTER></h2>
<P>The following waveforms show the behavior of altpll megafunction for the chosen set of parameters in design DPLL.vhd. The design DPLL.vhd has Cyclone AUTO pll configured in NORMAL mode The primary clock input to the PLL is INCLK0, with clock period 25000 ps. Output port LOCKED is used. This port will go high when the PLL locks to the input clock. </P>
<CENTER><img src=DPLL_wave0.jpg> </CENTER>
<P><CENTER><FONT size=2>Fig. 1 : Wave showing NORMAL mode operation. </CENTER></P>
<P><FONT size=3></P>
<P></P>
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