{"id":246,"date":"2023-04-21T14:33:00","date_gmt":"2023-04-21T06:33:00","guid":{"rendered":"https:\/\/blog.laning.cc\/?p=246"},"modified":"2025-04-01T15:45:39","modified_gmt":"2025-04-01T07:45:39","slug":"%e6%95%b0%e5%ad%97%e9%9b%86%e6%88%90%e7%94%b5%e8%b7%af%e8%ae%be%e8%ae%a1%e5%ae%9e%e9%aa%8c-fir%e6%bb%a4%e6%b3%a2%e5%99%a8","status":"publish","type":"post","link":"https:\/\/blog.laning.org\/index.php\/2023\/04\/21\/246\/","title":{"rendered":"\u6570\u5b57\u96c6\u6210\u7535\u8def\u8bbe\u8ba1\u5b9e\u9a8c\u2014\u2014FIR\u6ee4\u6ce2\u5668"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><a><\/a><a><\/a><a>1.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u8bfe\u7a0b\u4fe1\u606f<\/a><\/h2>\n\n\n\n<p>\u25a0<strong>\u5b9e\u9a8c\u5730\u70b9<\/strong>\uff1a\u6e05\u6c34\u6cb3\u6821\u533aKB239<\/p>\n\n\n\n<ul>\n<li>\u25a0&nbsp;&nbsp;&nbsp;&nbsp; <strong>\u5b9e\u9a8c\u65f6\u95f4\uff1a<\/strong>2021.04.16<\/li>\n\n\n\n<li>\u25a0&nbsp;&nbsp;&nbsp;&nbsp; <strong>\u5b9e\u9a8c\u65f6\u957f\uff1a<\/strong>3\u5c0f\u65f6\uff084\u8282\u8bfe\uff09<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">2.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u5b9e\u9a8c\u8981\u6c42&nbsp; <\/h2>\n\n\n\n<p>1. The fir filter input sampling rate is <strong>100kHz<\/strong>, the filter passband single-sideband bandwidth is <strong>20kHz<\/strong>, the out-of-band suppression is <strong>90dB<\/strong>, and the in-band ripple is <strong>1dB<\/strong>.<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; 2. The filter coefficient needs to be <strong>fixed-point<\/strong>, and the effective number of ADCs is <strong>24bit<\/strong>. The filter coefficient bit width is self-defined.<\/p>\n\n\n\n<p>\u601d\u8003\uff08\u52a0\u5206\u9879\uff09\uff1a<\/p>\n\n\n\n<p>1. The relationship between filter passband, stopband, out-of-band rejection and filter order<\/p>\n\n\n\n<p>2. How to choose the appropriate filter coefficient bit width<\/p>\n\n\n\n<p>3. Design test vector set, write testbench for verification test and simulate on the hardware<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a><\/a><a><\/a><a><\/a><a><\/a>3.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u8bbe\u8ba1\u4e0e\u5b9e\u73b0<\/h2>\n\n\n\n<p><a><\/a><a><\/a><a><\/a><a>3.1\u5b9e\u9a8c\u6b65\u9aa4<\/a><\/p>\n\n\n\n<ol style=\"list-style-type:1\">\n<li>1.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u521b\u5efa\u9879\u76ee<\/li>\n\n\n\n<li>2.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u586b\u5145\u4ee3\u7801<\/li>\n\n\n\n<li>3.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u7efc\u5408\u4ee3\u7801\u5e76\u5b8c\u6210debug<\/li>\n\n\n\n<li>4.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u8fdb\u884c\u4eff\u771f<\/li>\n\n\n\n<li>5.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u4e0b\u677f\u5b9e\u8df5<\/li>\n<\/ol>\n\n\n\n<p><a><\/a><a><\/a><a><\/a><a>3.2\u7535\u8def\u529f\u80fd\u8bf4\u660e<\/a><\/p>\n\n\n\n<p>1\u3001\u4f7f\u7528matlab\u8bbe\u8ba1\u4e00\u4e2aFIR\u6ee4\u6ce2\u5668<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/blog.laning.cc\/wp-content\/uploads\/2023\/04\/1-1.jpg\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/blog.laning.org\/wp-content\/uploads\/2023\/04\/1-1.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/blog.laning.org\/wp-content\/uploads\/2023\/04\/1-1.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/a><\/figure>\n\n\n\n<p>2\u3001\u4f7f\u7528matlab\u751f\u6210\u4fe1\u53f7<\/p>\n\n\n\n<p>%\u3010\u53c2\u6570\u3011<\/p>\n\n\n\n<p>fs=100000; %\u91c7\u6837\u7387<\/p>\n\n\n\n<p>N=100000; %\u6574\u4e2a\u56fe\u7531N\u4e2a\u6837\u70b9\u6784\u6210<\/p>\n\n\n\n<p>t=0:1\/fs:(N-1)\/fs;%\u751f\u6210\u5750\u6807\u70b9<\/p>\n\n\n\n<p>f1=10000;%\u751f\u6210\u4fe1\u53f7\u9891\u7387\uff0cf1\u4e0ef3\u5e94\u6709\u4e00\u4e2a\u5728\u901a\u5e26\u5185\u4e00\u4e2a\u5728\u963b\u5e26\u5185\uff0c\u4ee5\u4fbf\u540e\u7eed\u9a8c\u8bc1\u6ee4\u6ce2\u5668<\/p>\n\n\n\n<p>f3=30000;<\/p>\n\n\n\n<p>%\u3010\u751f\u6210\u6b63\u5f26\u4fe1\u53f7\u3011<\/p>\n\n\n\n<p>y=sin(2*pi*f1*t)+sin(2*pi*f3*t);%\u751f\u6210\u65f6\u57df\u70b9\u96c6<\/p>\n\n\n\n<p>%\u65f6\u57df\u4fe1\u53f7\u3010\u753b\u56fe\u3011<\/p>\n\n\n\n<p>figure(1);<\/p>\n\n\n\n<p>plot(t,y);<\/p>\n\n\n\n<p>title(&#8216;\u6b63\u5f26\u4fe1\u53f7&#8217;);<\/p>\n\n\n\n<p>y=fi(y, 1, 24, 23);%\u7531\u6d6e\u70b9\u6570\u53d8\u4e3a24bit\u5b9a\u70b9\u6709\u7b26\u53f7\u6570,\u5c0f\u6570\u957f\u5ea6\u4e3a23\u3002<\/p>\n\n\n\n<p>%\u8f6c\u4e3a\u9891\u8c31\u4fe1\u53f7\u5e76\u3010\u753b\u56fe\u3011<\/p>\n\n\n\n<p>yy=abs(fftshift(fft(double(y),N)));<\/p>\n\n\n\n<p>figure(2);<\/p>\n\n\n\n<p>plot(fs*linspace(-0.5,0.5,length(yy)),yy);<\/p>\n\n\n\n<p>title(&#8216;\u6b63\u5f26\u4fe1\u53f7&#8217;);<\/p>\n\n\n\n<p>out=1;%\u624b\u52a8\u6539\u4e3a1\u65f6\uff0c\u8f93\u51fa\u6ce2\u5f62\u6570\u636e\u5230\u6587\u4ef6input.txt<\/p>\n\n\n\n<p>if out==1<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; %\u751f\u6210\u8f93\u5165\u4fe1\u53f7\u6587\u4ef6<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; fid1=fopen(&#8216;.\/input.txt&#8217;,&#8217;wt&#8217;);<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; for i = 1:1:N<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp; data = hex(y(i));%\u6309\u7167vivado\u8f93\u5165\u683c\u5f0f\u9700\u6c42\uff0c\u9700\u8981\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236\u683c\u5f0f<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp; fprintf(fid1,&#8217;%s\\n&#8217;,data);<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; end<\/p>\n\n\n\n<p>end<\/p>\n\n\n\n<p>3\u3001\u4f7f\u7528VIVADO FIR IP<\/p>\n\n\n\n<p>4\u3001testbnech<\/p>\n\n\n\n<p>`timescale 1us \/ 1ps<\/p>\n\n\n\n<p>\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/<\/p>\n\n\n\n<p>\/\/ Company:<\/p>\n\n\n\n<p>\/\/ Engineer:<\/p>\n\n\n\n<p>\/\/<\/p>\n\n\n\n<p>\/\/ Create Date: 2021\/03\/22 10:30:12<\/p>\n\n\n\n<p>\/\/ Design Name:<\/p>\n\n\n\n<p>\/\/ Module Name: testbench<\/p>\n\n\n\n<p>\/\/ Project Name:<\/p>\n\n\n\n<p>\/\/ Target Devices:<\/p>\n\n\n\n<p>\/\/ Tool Versions:<\/p>\n\n\n\n<p>\/\/ Description:<\/p>\n\n\n\n<p>\/\/<\/p>\n\n\n\n<p>\/\/ Dependencies:<\/p>\n\n\n\n<p>\/\/<\/p>\n\n\n\n<p>\/\/ Revision:<\/p>\n\n\n\n<p>\/\/ Revision 0.01 &#8211; File Created<\/p>\n\n\n\n<p>\/\/ Revision 0.02 &#8211; Add Comment<\/p>\n\n\n\n<p>\/\/ Additional Comments:<\/p>\n\n\n\n<p>\/\/<\/p>\n\n\n\n<p>\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/<\/p>\n\n\n\n<p>module testbench(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; );<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; reg aresetn;&nbsp;&nbsp;&nbsp; \/\/ Reset signal<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; reg aclk;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/\/ Clock signal<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; reg s_axis_data_tvalid;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; wire s_axis_data_tready;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; reg [23:0]s_axis_data_tdata;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; wire&nbsp; m_axis_data_tvalid;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; wire [40:0]m_axis_data_tdata;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; reg [23:0] mem [99999:0];&nbsp;&nbsp; \/\/Memory of input data<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; reg [31:0] n;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/\/index of data<\/p>\n\n\n\n<p>fir_compiler_0 fir1 (<\/p>\n\n\n\n<p>&nbsp; .aresetn(aresetn),&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/\/ input wire aresetn<\/p>\n\n\n\n<p>&nbsp; .aclk(aclk),&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/\/ input wire aclk<\/p>\n\n\n\n<p>&nbsp; .s_axis_data_tvalid(s_axis_data_tvalid),&nbsp; \/\/ input wire s_axis_data_tvalid<\/p>\n\n\n\n<p>&nbsp; .s_axis_data_tready(s_axis_data_tready),&nbsp; \/\/ output wire s_axis_data_tready<\/p>\n\n\n\n<p>&nbsp; .s_axis_data_tdata(s_axis_data_tdata),&nbsp;&nbsp;&nbsp; \/\/ input wire [23 : 0] s_axis_data_tdata<\/p>\n\n\n\n<p>&nbsp; .m_axis_data_tvalid(m_axis_data_tvalid),&nbsp; \/\/ output wire m_axis_data_tvalid<\/p>\n\n\n\n<p>&nbsp; .m_axis_data_tdata(m_axis_data_tdata)&nbsp;&nbsp;&nbsp; \/\/ output wire [41 : 0] m_axis_data_tdata<\/p>\n\n\n\n<p>&nbsp;&nbsp; );<\/p>\n\n\n\n<p>integer Out;<\/p>\n\n\n\n<p>initial<\/p>\n\n\n\n<p>begin<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; Out=$fopen(&#8220;.\/output.txt&#8221;,&#8221;w&#8221;);\/\/Remember to edit to your path. Use &#8220;\/&#8221; rather than &#8220;\\&#8221; as the path symbol<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; $readmemh(&#8220;.\/input.txt&#8221;,mem);\/\/Remember to edit to your path. Use &#8220;\/&#8221; rather than &#8220;\\&#8221; as the path symbol<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; aclk = 0;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; aresetn = 0;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; #50<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; aresetn = 1;<\/p>\n\n\n\n<p>end<\/p>\n\n\n\n<p>always #5 aclk = ~aclk; \/\/set clock signal<\/p>\n\n\n\n<p>\/\/When you need to save output register, use<\/p>\n\n\n\n<p>\/\/$fdisplay(Out,&#8221;%x&#8221;,m_axis_data_tdata);<\/p>\n\n\n\n<p>\/\/to save this register data to output.txt.<\/p>\n\n\n\n<p>\/*<\/p>\n\n\n\n<p>*\/<\/p>\n\n\n\n<p>\/\/Your code here<\/p>\n\n\n\n<p>always @(posedge aclk or negedge aresetn)<\/p>\n\n\n\n<p>begin<\/p>\n\n\n\n<p>if (~aresetn) begin<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; s_axis_data_tvalid &lt;= 0;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; s_axis_data_tdata &lt;= 0;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; n &lt;= 0;<\/p>\n\n\n\n<p>end else begin<\/p>\n\n\n\n<p>if (s_axis_data_tready) begin<\/p>\n\n\n\n<p>s_axis_data_tvalid &lt;= 1;<\/p>\n\n\n\n<p>s_axis_data_tdata &lt;= mem[n];<\/p>\n\n\n\n<p>n &lt;= n + 1;<\/p>\n\n\n\n<p>end<\/p>\n\n\n\n<p>if (m_axis_data_tvalid) begin<\/p>\n\n\n\n<p>$fdisplay(Out,&#8221;%x&#8221;,m_axis_data_tdata);<\/p>\n\n\n\n<p>end<\/p>\n\n\n\n<p>end<\/p>\n\n\n\n<p>end<\/p>\n\n\n\n<p>endmodule<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4\uff0e\u5b9e\u9a8c\u7ed3\u679c<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/blog.laning.cc\/wp-content\/uploads\/2023\/04\/2-1.jpg\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/blog.laning.org\/wp-content\/uploads\/2023\/04\/2-1.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/blog.laning.org\/wp-content\/uploads\/2023\/04\/2-1.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/blog.laning.cc\/wp-content\/uploads\/2023\/04\/3-1.jpg\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/blog.laning.org\/wp-content\/uploads\/2023\/04\/3-1.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/blog.laning.org\/wp-content\/uploads\/2023\/04\/3-1.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/blog.laning.cc\/wp-content\/uploads\/2023\/04\/4.jpg\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/blog.laning.org\/wp-content\/uploads\/2023\/04\/4.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/blog.laning.org\/wp-content\/uploads\/2023\/04\/4.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"\/><\/div><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">5.\u5b9e\u9a8c\u4e2d\u9047\u5230\u7684\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6cd5<\/h2>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; \u5f53\u91c7\u6837\u4fe1\u53f7\u6301\u7eed\u65f6\u95f4\u8f83\u77ed\u65f6\uff0c\u5373\u6301\u7eed\u65f6\u95f4\u8fdc\u5c0f\u4e8e1\u79d2\u65f6\uff0c\u7ecf\u8fc7FIR\u6ee4\u6ce2\u5668\u7684\u4fe1\u53f7\u6062\u590d\u51fa\u6765\u540e\uff0c\u4f1a\u51fa\u73b0\u5f88\u591a\u6bdb\u523a\uff0c\u800c\u9002\u5f53\u589e\u52a0\u4fe1\u53f7\u6301\u7eed\u65f6\u95f4\u5219\u80fd\u5f88\u597d\u51cf\u5c11\u6bdb\u523a\u73b0\u8c61\u3002\u540c\u65f6\uff0c\u5f53\u4fe1\u53f7\u6301\u7eed\u65f6\u95f4\u8f83\u77ed\u65f6\uff0c\u6ee4\u6ce2\u540e\u7684\u4fe1\u53f7\u751f\u6210.txt\u6587\u4ef6\u4f1a\u6709\u5f88\u591axxxxxxx\u53d8\u91cf\uff0c\u800c\u6b64\u53d8\u91cf\u4e0d\u80fd\u88abread.m\u6587\u4ef6\u7684\u51fd\u6570\u5904\u7406\uff0c\u4f1a\u5bfc\u81f4\u62a5\u9519\uff0c\u9700\u8981\u589e\u52a0\u65f6\u957f\uff0c\u6216\u8005\u5220\u9664output.txt\u6587\u4ef6\u4e2d\u7684xxxxxx\u4fe1\u606f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a><\/a><a><\/a><a><\/a><a><\/a>6.\u5b9e\u9a8c\u611f\u60f3\u548c\u5efa\u8bae<\/h2>\n\n\n\n<p>\u901a\u8fc7Matlab\u751f\u6210\u4fe1\u53f7\u5e76\u8f93\u51fa\u4e3a.txt\u6587\u4ef6\uff0c\u4ee5\u53ca\u8c03\u7528Matlab\u6ee4\u6ce2\u5668\u8bbe\u8ba1\u5de5\u5177\u6765\u8bbe\u8ba1\u4e00\u4e2aFIR\u6ee4\u6ce2\u5668\uff0c\u540c\u65f6\u5728Vivado\u4e2d\u8c03\u7528\u6b64\u6ee4\u6ce2\u5668\uff0c\u7f16\u5199tb\u6587\u4ef6\uff0c\u5c06\u6ee4\u6ce2\u540e\u7684\u4fe1\u53f7\u8f93\u51fa\u4e3a.txt\u6587\u4ef6\uff0c\u5728Matlab\u4e2d\u89c2\u5bdf\u8f93\u51fa\u4fe1\u53f7\u7684\u6ce2\u5f62\u3002 \u5b9e\u9a8c\u4f53\u9a8c\u4e86FPGA\u505a\u4fe1\u53f7\u5904\u7406\u7684\u4e00\u822c\u6d41\u7a0b\uff0c\u8fdb\u4e00\u6b65\u4e86\u89e3FPGA\u7684\u5e94\u7528\u3002<\/p>\n\n\n\n<p><em>The end<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \u8bfe\u7a0b\u4fe1\u606f \u25a0\u5b9e\u9a8c\u5730\u70b9\uff1a\u6e05\u6c34\u6cb3\u6821\u533aKB239  [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u6570\u5b57\u96c6\u6210\u7535\u8def\u8bbe\u8ba1\u5b9e\u9a8c\u2014\u2014FIR\u6ee4\u6ce2\u5668 &ndash; Laning &#039;s Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.laning.org\/index.php\/2023\/04\/21\/246\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6570\u5b57\u96c6\u6210\u7535\u8def\u8bbe\u8ba1\u5b9e\u9a8c\u2014\u2014FIR\u6ee4\u6ce2\u5668 &ndash; 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