DCM0_INST : DCM
Generic map (
CLK_FEEDBACK => "1X",
CLKDV_DIVIDE => 4.0,
CLKFX_DIVIDE => 3,
CLKFX_MULTIPLY => 8,
CLKIN_DIVIDE_BY_2 => FALSE,
CLKIN_PERIOD => 10.0,--period,10.0ns
CLKOUT_PHASE_SHIFT => "NONE",
DESKEW_ADJUST => "SYSTEM_SYNCHRONOUS",
DFS_FREQUENCY_MODE => "HIGH",
DLL_FREQUENCY_MODE => "HIGH",
DUTY_CYCLE_CORRECTION => TRUE,
PHASE_SHIFT => 0,
STARTUP_WAIT => FALSE)
port map (
CLKIN => clkin_100M,
CLKFB => clk100M_i,
RST => '0',
PSEN => '0',
PSINCDEC => '0',
PSCLK => '0',
DSSEN => '0',
CLK0 => dcm0_clk0,
LOCKED => dcm0_locked,
CLKDV => dcm0_clkdv,
CLKFX => dcm0_clkfx --266m
-- CLKFX180 =>dcm0_clkfxn
);
clkin_100M_BUFG_INST : BUFG
port map (
I => sys_clk_in,
O => clkin_100M);
CLK100M_BUFG_INST : BUFG
port map (
I => dcm0_clk0,
O => clk100M_i);
CLK266Mp_BUFG_INST : BUFG
port map (
I => dcm0_clkfx,
O => clk266Mp);
输入时钟，反馈时钟和输出时钟要加BUFG |
楼主
标题置顶
标题高亮
