1.添加ip核
tools-megaWizard
工程规范，存放在ipcore文件夹下
设置参数：
a,速度等级
以下三行分别代表：
是否添加异步复位
是否添加locked信号，当locked从低电平到高电平时表示锁相环稳定
是否在时钟自锁的时候自动复位
配置第一路输出时钟
频率，相位，占空比
qip是quartus IP的缩写
锁相环是高电平复位的
复位信号设计：这样系统在锁相环不稳定，或者系统复位信号有效的时候，就输出复位信号
assign rst_n=sys_rst_n&locked激励文件模板的生成：
Processing-Start-Start Test Template Writer
在open中打卡激励文件，注意文件类型要改成所有类型
编写完保存。在assignment-setting-stimulation里面编译。
顶层文件如下：
module ip_pll(
input sys_clk,
input sys_rst_n,
output clk1_100m,
output clk1_100m_180deg,
output clk1_50m_75pct,
output clk1_25m,
output clk2_50m_25pct,
output clk2_150m_25pct
);
wire locked1;
wire locked2;
wire rst_n;
assign rst_n=sys_rst_n&locked1&locked2;
pll_clk1 u_pll_clk1(
.areset (~sys_rst_n),
.inclk0 (sys_clk),
.c0 (clk1_100m),
.c1 (clk1_100m_180deg),
.c2 (clk1_50m_75pct),
.c3 (clk1_25m),
.locked (locked1)
);
pll_clk2 u_pll_clk2(
.areset (~sys_rst_n),
.inclk0 (sys_clk),
.c0 (clk2_50m_25pct),
.c1 (clk2_150m_25pct),
.locked (locked2)
);
endmodule 激励文件如下：
`timescale 1 ps / 1 ps
// synopsys translate_on
module pll_clk2 (
areset,
inclk0,
c0,
c1,
locked);
input areset;
input inclk0;
output c0;
output c1;
output locked;
`ifndef ALTERA_RESERVED_QIS
// synopsys translate_off
`endif
tri0 areset;
`ifndef ALTERA_RESERVED_QIS
// synopsys translate_on
`endif
wire [4:0] sub_wire0;
wire sub_wire2;
wire [0:0] sub_wire6 = 1'h0;
wire [0:0] sub_wire3 = sub_wire0[0:0];
wire [1:1] sub_wire1 = sub_wire0[1:1];
wire c1 = sub_wire1;
wire locked = sub_wire2;
wire c0 = sub_wire3;
wire sub_wire4 = inclk0;
wire [1:0] sub_wire5 = {sub_wire6, sub_wire4};
altpll altpll_component (
.areset (areset),
.inclk (sub_wire5),
.clk (sub_wire0),
.locked (sub_wire2),
.activeclock (),
.clkbad (),
.clkena ({6{1'b1}}),
.clkloss (),
.clkswitch (1'b0),
.configupdate (1'b0),
.enable0 (),
.enable1 (),
.extclk (),
.extclkena ({4{1'b1}}),
.fbin (1'b1),
.fbmimicbidir (),
.fbout (),
.fref (),
.icdrclk (),
.pfdena (1'b1),
.phasecounterselect ({4{1'b1}}),
.phasedone (),
.phasestep (1'b1),
.phaseupdown (1'b1),
.pllena (1'b1),
.scanaclr (1'b0),
.scanclk (1'b0),
.scanclkena (1'b1),
.scandata (1'b0),
.scandataout (),
.scandone (),
.scanread (1'b0),
.scanwrite (1'b0),
.sclkout0 (),
.sclkout1 (),
.vcooverrange (),
.vcounderrange ());
defparam
altpll_component.bandwidth_type = "AUTO",
altpll_component.clk0_divide_by = 1,
altpll_component.clk0_duty_cycle = 25,
altpll_component.clk0_multiply_by = 1,
altpll_component.clk0_phase_shift = "0",
altpll_component.clk1_divide_by = 1,
altpll_component.clk1_duty_cycle = 25,
altpll_component.clk1_multiply_by = 3,
altpll_component.clk1_phase_shift = "0",
altpll_component.compensate_clock = "CLK0",
altpll_component.inclk0_input_frequency = 20000,
altpll_component.intended_device_family = "Cyclone IV GX",
altpll_component.lpm_hint = "CBX_MODULE_PREFIX=pll_clk2",
altpll_component.lpm_type = "altpll",
altpll_component.operation_mode = "NORMAL",
altpll_component.pll_type = "AUTO",
altpll_component.port_activeclock = "PORT_UNUSED",
altpll_component.port_areset = "PORT_USED",
altpll_component.port_clkbad0 = "PORT_UNUSED",
altpll_component.port_clkbad1 = "PORT_UNUSED",
altpll_component.port_clkloss = "PORT_UNUSED",
altpll_component.port_clkswitch = "PORT_UNUSED",
altpll_component.port_configupdate = "PORT_UNUSED",
altpll_component.port_fbin = "PORT_UNUSED",
altpll_component.port_inclk0 = "PORT_USED",
altpll_component.port_inclk1 = "PORT_UNUSED",
altpll_component.port_locked = "PORT_USED",
altpll_component.port_pfdena = "PORT_UNUSED",
altpll_component.port_phasecounterselect = "PORT_UNUSED",
altpll_component.port_phasedone = "PORT_UNUSED",
altpll_component.port_phasestep = "PORT_UNUSED",
altpll_component.port_phaseupdown = "PORT_UNUSED",
altpll_component.port_pllena = "PORT_UNUSED",
altpll_component.port_scanaclr = "PORT_UNUSED",
altpll_component.port_scanclk = "PORT_UNUSED",
altpll_component.port_scanclkena = "PORT_UNUSED",
altpll_component.port_scandata = "PORT_UNUSED",
altpll_component.port_scandataout = "PORT_UNUSED",
altpll_component.port_scandone = "PORT_UNUSED",
altpll_component.port_scanread = "PORT_UNUSED",
altpll_component.port_scanwrite = "PORT_UNUSED",
altpll_component.port_clk0 = "PORT_USED",
altpll_component.port_clk1 = "PORT_USED",
altpll_component.port_clk2 = "PORT_UNUSED",
altpll_component.port_clk3 = "PORT_UNUSED",
altpll_component.port_clk4 = "PORT_UNUSED",
altpll_component.port_clk5 = "PORT_UNUSED",
altpll_component.port_clkena0 = "PORT_UNUSED",
altpll_component.port_clkena1 = "PORT_UNUSED",
altpll_component.port_clkena2 = "PORT_UNUSED",
altpll_component.port_clkena3 = "PORT_UNUSED",
altpll_component.port_clkena4 = "PORT_UNUSED",
altpll_component.port_clkena5 = "PORT_UNUSED",
altpll_component.port_extclk0 = "PORT_UNUSED",
altpll_component.port_extclk1 = "PORT_UNUSED",
altpll_component.port_extclk2 = "PORT_UNUSED",
altpll_component.port_extclk3 = "PORT_UNUSED",
altpll_component.self_reset_on_loss_lock = "OFF",
altpll_component.width_clock = 5;
endmodule框图如下：
post fit 和post map差异：
资源占用 如下：用了两个pll：
仿真波形如下：
