{"id":73722,"date":"2026-02-08T09:05:28","date_gmt":"2026-02-08T01:05:28","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/73722.html"},"modified":"2026-02-08T09:05:28","modified_gmt":"2026-02-08T01:05:28","slug":"%e4%bb%8e%e8%a7%86%e8%a7%89%e6%9a%82%e7%95%99%e5%88%b0%e7%b2%be%e5%87%86%e8%ae%a1%e6%97%b6%ef%bc%9afpga%e5%8a%a8%e6%80%81%e6%95%b0%e7%a0%81%e7%ae%a1%e8%83%8c%e5%90%8e%e7%9a%84%e5%b7%a5%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/73722.html","title":{"rendered":"\u4ece\u89c6\u89c9\u6682\u7559\u5230\u7cbe\u51c6\u8ba1\u65f6\uff1aFPGA\u52a8\u6001\u6570\u7801\u7ba1\u80cc\u540e\u7684\u5de5\u7a0b\u7f8e\u5b66"},"content":{"rendered":"<h2>\u4ece\u89c6\u89c9\u6682\u7559\u5230\u7cbe\u51c6\u8ba1\u65f6&#xff1a;FPGA\u52a8\u6001\u6570\u7801\u7ba1\u80cc\u540e\u7684\u5de5\u7a0b\u7f8e\u5b66<\/h2>\n<p>\u5728\u6570\u5b57\u4e16\u754c\u7684\u6784\u5efa\u4e2d&#xff0c;\u6211\u4eec\u5e38\u5e38\u8ffd\u6c42\u90a3\u4e9b\u5c06\u7cbe\u5bc6\u5de5\u7a0b\u4e0e\u4eba\u7c7b\u611f\u77e5\u65e0\u7f1d\u878d\u5408\u7684\u89e3\u51b3\u65b9\u6848\u3002FPGA\u52a8\u6001\u6570\u7801\u7ba1\u663e\u793a\u6280\u672f\u6b63\u662f\u8fd9\u6837\u4e00\u4e2a\u5b8c\u7f8e\u5178\u8303\u2014\u2014\u5b83\u4e0d\u4ec5\u662f\u7535\u5b50\u5de5\u7a0b\u7684\u827a\u672f\u54c1&#xff0c;\u66f4\u662f\u5bf9\u4eba\u7c7b\u89c6\u89c9\u7279\u6027\u7684\u6df1\u5ea6\u7406\u89e3\u548c\u5de7\u5999\u5229\u7528\u3002\u5f53\u6211\u4eec\u51dd\u89c6\u90a3\u4e9b\u6d41\u52a8\u7684\u6570\u5b57\u65f6&#xff0c;\u5f88\u5c11\u6709\u4eba\u610f\u8bc6\u5230\u80cc\u540e\u662f\u4e00\u573a\u5149\u5b66\u3001\u7535\u5b50\u5b66\u4e0e\u795e\u7ecf\u79d1\u5b66\u7684\u7cbe\u5999\u5171\u821e\u3002<\/p>\n<h3>1. \u89c6\u89c9\u6682\u7559&#xff1a;\u751f\u7269\u5b66\u539f\u7406\u4e0e\u5de5\u7a0b\u5e94\u7528\u7684\u5b8c\u7f8e\u9082\u9005<\/h3>\n<p>\u4eba\u773c\u7684\u89c6\u89c9\u7cfb\u7edf\u6709\u4e00\u4e2a\u795e\u5947\u7684\u7279\u6027&#xff1a;\u5f53\u56fe\u50cf\u5728\u89c6\u7f51\u819c\u4e0a\u6d88\u5931\u540e&#xff0c;\u89c6\u89c9\u5370\u8c61\u5e76\u4e0d\u4f1a\u7acb\u5373\u6d88\u6563&#xff0c;\u800c\u662f\u4f1a\u4fdd\u7559\u7ea61\/24\u79d2\u3002\u8fd9\u79cd\u73b0\u8c61\u88ab\u79f0\u4e3a&#034;\u89c6\u89c9\u6682\u7559&#034;&#xff0c;\u6b63\u662f\u7535\u5f71\u3001\u52a8\u753b\u548c\u52a8\u6001\u663e\u793a\u6280\u672f\u7684\u751f\u7269\u5b66\u57fa\u7840\u3002<\/p>\n<p>\u5728FPGA\u52a8\u6001\u6570\u7801\u7ba1\u8bbe\u8ba1\u4e2d&#xff0c;\u6211\u4eec\u5145\u5206\u5229\u7528\u4e86\u8fd9\u4e00\u7279\u6027\u3002\u901a\u8fc7\u4ee5\u9ad8\u4e8e50Hz\u7684\u9891\u7387\u5feb\u901f\u5207\u6362\u4e0d\u540c\u6570\u7801\u7ba1\u7684\u663e\u793a\u5185\u5bb9&#xff0c;\u6211\u4eec\u6210\u529f\u5730&#034;\u6b3a\u9a97&#034;\u4e86\u4eba\u7c7b\u89c6\u89c9\u7cfb\u7edf&#xff0c;\u8ba9\u5927\u8111\u8ba4\u4e3a\u6240\u6709\u6570\u5b57\u90fd\u5728\u540c\u65f6\u7a33\u5b9a\u663e\u793a\u3002\u8fd9\u79cd\u5de7\u5999\u7684\u6b3a\u9a97\u5b9e\u9645\u4e0a\u662f\u5bf9\u4eba\u7c7b\u611f\u77e5\u7279\u6027\u7684\u5c0a\u91cd\u800c\u975e\u6b3a\u9a97\u2014\u2014\u6211\u4eec\u53ea\u662f\u5728\u4e0e\u89c6\u89c9\u7cfb\u7edf\u5408\u4f5c&#xff0c;\u800c\u975e\u5bf9\u6297\u3002<\/p>\n<p>\u5173\u952e\u6d1e\u5bdf&#xff1a;\u6210\u529f\u7684\u5de5\u7a0b\u8bbe\u8ba1\u4e0d\u662f\u5f3a\u884c\u6539\u53d8\u81ea\u7136\u89c4\u5f8b&#xff0c;\u800c\u662f\u627e\u5230\u4e0e\u73b0\u6709\u7cfb\u7edf\u548c\u8c10\u5171\u5904\u7684\u65b9\u5f0f\u3002\u89c6\u89c9\u6682\u7559\u4e0d\u662f\u9700\u8981\u514b\u670d\u7684\u7f3a\u9677&#xff0c;\u800c\u662f\u53ef\u4ee5\u5de7\u5999\u5229\u7528\u7684\u7279\u6027\u3002<\/p>\n<p>\u4ece\u5de5\u7a0b\u89d2\u5ea6\u770b&#xff0c;\u8fd9\u4e2a\u9891\u7387\u9009\u62e9\u9700\u8981\u7cbe\u786e\u8ba1\u7b97&#xff1a;<\/p>\n<table>\n<tr>\u53c2\u6570\u7406\u8bba\u503c\u5de5\u7a0b\u5b9e\u8df5\u503c\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>\u6700\u4f4e\u5237\u65b0\u7387<\/td>\n<td>24Hz<\/td>\n<td>50Hz<\/td>\n<td>\u907f\u514d\u660e\u663e\u95ea\u70c1<\/td>\n<\/tr>\n<tr>\n<td>\u63a8\u8350\u5237\u65b0\u7387<\/td>\n<td>60Hz<\/td>\n<td>100-200Hz<\/td>\n<td>\u5e73\u8861\u6548\u679c\u4e0e\u529f\u8017<\/td>\n<\/tr>\n<tr>\n<td>\u6700\u9ad8\u5237\u65b0\u7387<\/td>\n<td>1000Hz<\/td>\n<td>500Hz<\/td>\n<td>\u907f\u514d\u663e\u793a\u91cd\u53e0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2. FPGA\u5728\u52a8\u6001\u663e\u793a\u4e2d\u7684\u72ec\u7279\u4f18\u52bf<\/h3>\n<p>\u73b0\u573a\u53ef\u7f16\u7a0b\u95e8\u9635\u5217&#xff08;FPGA&#xff09;\u4e3a\u52a8\u6001\u6570\u7801\u7ba1\u663e\u793a\u63d0\u4f9b\u4e86\u7406\u60f3\u7684\u786c\u4ef6\u5e73\u53f0\u3002\u4e0e\u4f20\u7edf\u7684\u5fae\u63a7\u5236\u5668\u76f8\u6bd4&#xff0c;FPGA\u7684\u5e76\u884c\u5904\u7406\u80fd\u529b\u4f7f\u5176\u80fd\u591f\u540c\u65f6\u5904\u7406\u591a\u4e2a\u6570\u7801\u7ba1\u7684\u63a7\u5236\u4fe1\u53f7&#xff0c;\u800c\u4e0d\u4f1a\u51fa\u73b0\u8f6f\u4ef6\u89e3\u51b3\u65b9\u6848\u4e2d\u5e38\u89c1\u7684\u65f6\u95f4\u7247\u5206\u914d\u95ee\u9898\u3002<\/p>\n<p>FPGA\u5b9e\u73b0\u52a8\u6001\u663e\u793a\u7684\u6838\u5fc3\u4f18\u52bf&#xff1a;<\/p>\n<ul>\n<li>\u771f\u6b63\u7684\u5e76\u884c\u5904\u7406&#xff1a;\u6bcf\u4e2a\u6570\u7801\u7ba1\u90fd\u6709\u72ec\u7acb\u7684\u63a7\u5236\u903b\u8f91&#xff0c;\u65e0\u9700\u65f6\u95f4\u5206\u7247<\/li>\n<li>\u7eb3\u79d2\u7ea7\u54cd\u5e94&#xff1a;\u786c\u4ef6\u76f4\u63a5\u9a71\u52a8&#xff0c;\u65e0\u8f6f\u4ef6\u5ef6\u8fdf<\/li>\n<li>\u7cbe\u786e\u65f6\u5e8f\u63a7\u5236&#xff1a;\u6570\u5b57\u7535\u8def\u63d0\u4f9b\u786e\u5b9a\u6027\u7684\u65f6\u5e8f\u4fdd\u8bc1<\/li>\n<li>\u4f4e\u529f\u8017\u8bbe\u8ba1&#xff1a;\u53ea\u6709\u88ab\u70b9\u4eae\u7684\u6bb5\u624d\u6d88\u8017\u529f\u7387<\/li>\n<\/ul>\n<p>\u8ba9\u6211\u4eec\u770b\u4e00\u4e2a\u7b80\u5355\u7684Verilog\u793a\u4f8b&#xff0c;\u5c55\u793a\u5982\u4f55\u5b9e\u73b0\u57fa\u672c\u7684\u6570\u7801\u7ba1\u626b\u63cf\u903b\u8f91&#xff1a;<\/p>\n<p>module display_scanner (<br \/>\n    input clk,                 \/\/ 50MHz\u4e3b\u65f6\u949f<br \/>\n    input rst_n,               \/\/ \u5f02\u6b65\u590d\u4f4d<br \/>\n    output reg [5:0] digit_sel, \/\/ \u4f4d\u9009\u4fe1\u53f7<br \/>\n    output reg [7:0] segment   \/\/ \u6bb5\u9009\u4fe1\u53f7<br \/>\n);<\/p>\n<p>reg [15:0] scan_counter;<br \/>\nreg [2:0] current_digit;<br \/>\nreg [23:0] display_data;      \/\/ 6\u4f4d\u6570\u7801\u7ba1\u663e\u793a\u6570\u636e<\/p>\n<p>always &#064;(posedge clk or negedge rst_n) begin<br \/>\n    if (!rst_n) begin<br \/>\n        scan_counter &lt;&#061; 0;<br \/>\n        current_digit &lt;&#061; 0;<br \/>\n    end else begin<br \/>\n        scan_counter &lt;&#061; scan_counter &#043; 1;<\/p>\n<p>        \/\/ \u6bcf1ms\u5207\u6362\u4e00\u4e2a\u6570\u7801\u7ba1<br \/>\n        if (scan_counter &#061;&#061; 16&#039;d50000) begin<br \/>\n            scan_counter &lt;&#061; 0;<br \/>\n            current_digit &lt;&#061; current_digit &#043; 1;<br \/>\n            if (current_digit &#061;&#061; 3&#039;d5)<br \/>\n                current_digit &lt;&#061; 0;<br \/>\n        end<br \/>\n    end<br \/>\nend<\/p>\n<p>\/\/ \u4f4d\u9009\u4fe1\u53f7\u751f\u6210<br \/>\nalways &#064;(*) begin<br \/>\n    digit_sel &#061; 6&#039;b111111;     \/\/ \u9ed8\u8ba4\u5168\u90e8\u5173\u95ed<br \/>\n    digit_sel[current_digit] &#061; 1&#039;b0; \/\/ \u9009\u4e2d\u5f53\u524d\u6570\u7801\u7ba1<br \/>\nend<\/p>\n<p>\/\/ \u6bb5\u9009\u4fe1\u53f7\u751f\u6210<br \/>\nalways &#064;(*) begin<br \/>\n    case (current_digit)<br \/>\n        0: segment &#061; display_data[7:0];<br \/>\n        1: segment &#061; display_data[15:8];<br \/>\n        \/\/ &#8230; \u5176\u4ed6\u6570\u7801\u7ba1<br \/>\n    endcase<br \/>\nend<br \/>\nendmodule<\/p>\n<p>\u8fd9\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u5c55\u793a\u4e86FPGA\u5982\u4f55\u4ee5\u786c\u4ef6\u65b9\u5f0f\u5b9e\u73b0\u7cbe\u786e\u7684\u65f6\u5e8f\u63a7\u5236&#xff0c;\u786e\u4fdd\u6bcf\u4e2a\u6570\u7801\u7ba1\u90fd\u80fd\u5728\u6b63\u786e\u7684\u65f6\u95f4\u83b7\u5f97\u6b63\u786e\u7684\u663e\u793a\u6570\u636e\u3002<\/p>\n<h3>3. \u907f\u514d\u95ea\u70c1\u4e0e\u91cd\u53e0&#xff1a;\u7cbe\u5bc6\u8ba1\u65f6\u7684\u827a\u672f<\/h3>\n<p>\u52a8\u6001\u6570\u7801\u7ba1\u8bbe\u8ba1\u4e2d\u6700\u6311\u6218\u6027\u7684\u90e8\u5206\u5c31\u662f\u627e\u5230\u5237\u65b0\u7387\u7684&#034;\u751c\u871c\u70b9&#034;\u2014\u2014\u65e2\u8981\u8db3\u591f\u5feb\u4ee5\u907f\u514d\u95ea\u70c1&#xff0c;\u53c8\u8981\u8db3\u591f\u6162\u4ee5\u9632\u6b62\u663e\u793a\u91cd\u53e0\u3002\u8fd9\u4e2a\u5e73\u8861\u70b9\u7684\u5bfb\u627e\u9700\u8981\u6df1\u5165\u7406\u89e3\u591a\u4e2a\u5de5\u7a0b\u53c2\u6570\u7684\u7efc\u5408\u5f71\u54cd\u3002<\/p>\n<p>\u5f71\u54cd\u5237\u65b0\u7387\u9009\u62e9\u7684\u56e0\u7d20&#xff1a;<\/p>\n<li>\u6570\u7801\u7ba1\u7279\u6027&#xff1a;\u4e0d\u540c\u578b\u53f7\u7684\u6570\u7801\u7ba1\u6709\u4e0d\u540c\u7684\u54cd\u5e94\u65f6\u95f4\u548c\u4f59\u8f89\u7279\u6027<\/li>\n<li>\u9a71\u52a8\u7535\u8def\u8bbe\u8ba1&#xff1a;\u6676\u4f53\u7ba1\u5f00\u5173\u901f\u5ea6\u3001\u7535\u6d41\u5927\u5c0f\u90fd\u4f1a\u5f71\u54cd\u663e\u793a\u6548\u679c<\/li>\n<li>\u73af\u5883\u5149\u7167\u6761\u4ef6&#xff1a;\u660e\u4eae\u73af\u5883\u9700\u8981\u66f4\u9ad8\u4eae\u5ea6&#xff0c;\u53ef\u80fd\u5f71\u54cd\u6700\u4f73\u5237\u65b0\u7387<\/li>\n<li>\u89c2\u770b\u8ddd\u79bb&#xff1a;\u8fdc\u8ddd\u79bb\u89c2\u770b\u53ef\u4ee5\u63a5\u53d7\u8f83\u4f4e\u5237\u65b0\u7387<\/li>\n<p>\u5728\u5b9e\u9645\u9879\u76ee\u4e2d&#xff0c;\u6211\u901a\u5e38\u91c7\u7528\u4ee5\u4e0b\u8c03\u8bd5\u6d41\u7a0b\u6765\u4f18\u5316\u663e\u793a\u6548\u679c&#xff1a;<\/p>\n<p>\/\/ \u53ef\u914d\u7f6e\u7684\u5237\u65b0\u7387\u8c03\u6574\u6a21\u5757<br \/>\nparameter CLK_FREQ &#061; 50_000_000; \/\/ 50MHz<\/p>\n<p>module refresh_adjust (<br \/>\n    input clk,<br \/>\n    input [2:0] refresh_setting,<br \/>\n    output reg refresh_pulse<br \/>\n);<\/p>\n<p>reg [31:0] counter;<br \/>\nreg [31:0] compare_value;<\/p>\n<p>always &#064;(*) begin<br \/>\n    case (refresh_setting)<br \/>\n        0: compare_value &#061; CLK_FREQ \/ 60;   \/\/ 60Hz<br \/>\n        1: compare_value &#061; CLK_FREQ \/ 100;  \/\/ 100Hz<br \/>\n        2: compare_value &#061; CLK_FREQ \/ 150;  \/\/ 150Hz<br \/>\n        \/\/ \u66f4\u591a\u914d\u7f6e&#8230;<br \/>\n    endcase<br \/>\nend<\/p>\n<p>always &#064;(posedge clk) begin<br \/>\n    counter &lt;&#061; counter &#043; 1;<br \/>\n    refresh_pulse &lt;&#061; (counter &#061;&#061; compare_value);<br \/>\n    if (counter &gt;&#061; compare_value)<br \/>\n        counter &lt;&#061; 0;<br \/>\nend<br \/>\nendmodule<\/p>\n<p>\u901a\u8fc7\u8fd9\u79cd\u53ef\u914d\u7f6e\u7684\u65b9\u5f0f&#xff0c;\u6211\u4eec\u53ef\u4ee5\u5728\u4e0d\u540c\u73af\u5883\u6761\u4ef6\u4e0b\u5feb\u901f\u8c03\u6574\u663e\u793a\u53c2\u6570&#xff0c;\u8fbe\u5230\u6700\u4f73\u89c6\u89c9\u6548\u679c\u3002<\/p>\n<h3>4. \u5de5\u4e1a\u7ea7\u5e94\u7528\u7684\u8bbe\u8ba1\u8003\u91cf<\/h3>\n<p>\u5728\u5de5\u4e1a\u8ba1\u65f6\u5668\u548c\u667a\u80fd\u5bb6\u5c45\u663e\u793a\u9762\u677f\u7b49\u8981\u6c42\u9ad8\u53ef\u9760\u6027\u7684\u5e94\u7528\u73af\u5883\u4e2d&#xff0c;\u52a8\u6001\u6570\u7801\u7ba1\u8bbe\u8ba1\u9700\u8981\u989d\u5916\u7684\u7a33\u5065\u6027\u8003\u91cf\u3002\u8fd9\u4e9b\u73af\u5883\u5f80\u5f80\u5b58\u5728\u7535\u6e90\u566a\u58f0\u3001\u6e29\u5ea6\u53d8\u5316\u548c\u7535\u78c1\u5e72\u6270\u7b49\u6311\u6218\u56e0\u7d20\u3002<\/p>\n<p>\u5de5\u4e1a\u7ea7\u8bbe\u8ba1\u7684\u6838\u5fc3\u8981\u7d20&#xff1a;<\/p>\n<ul>\n<li>\u7535\u6e90\u53bb\u8026&#xff1a;\u5728\u6bcf\u4e2a\u6570\u7801\u7ba1\u9a71\u52a8\u9644\u8fd1\u653e\u7f6e\u53bb\u8026\u7535\u5bb9<\/li>\n<li>\u4fe1\u53f7\u5b8c\u6574\u6027&#xff1a;\u4f7f\u7528\u9002\u5f53\u7684\u7ec8\u7aef\u7535\u963b\u548c\u5e03\u7ebf\u6280\u5de7<\/li>\n<li>\u6e29\u5ea6\u8865\u507f&#xff1a;\u6839\u636e\u73af\u5883\u6e29\u5ea6\u8c03\u6574\u4eae\u5ea6\u63a7\u5236<\/li>\n<li>\u9519\u8bef\u6062\u590d&#xff1a;\u8bbe\u8ba1\u770b\u95e8\u72d7\u5b9a\u65f6\u5668\u548c\u81ea\u52a8\u6062\u590d\u673a\u5236<\/li>\n<\/ul>\n<p>\u4e00\u4e2a\u5065\u58ee\u7684\u5de5\u4e1a\u8bbe\u8ba1\u901a\u5e38\u5305\u542b\u591a\u91cd\u4fdd\u62a4\u673a\u5236&#xff1a;<\/p>\n<p>module robust_display_control (<br \/>\n    input clk,<br \/>\n    input rst_n,<br \/>\n    input [5:0] fault_status,<br \/>\n    output reg [5:0] digit_sel,<br \/>\n    output reg [7:0] segment<br \/>\n);<\/p>\n<p>\/\/ \u770b\u95e8\u72d7\u5b9a\u65f6\u5668<br \/>\nreg [23:0] watchdog_counter;<br \/>\nalways &#064;(posedge clk or negedge rst_n) begin<br \/>\n    if (!rst_n)<br \/>\n        watchdog_counter &lt;&#061; 0;<br \/>\n    else if (watchdog_counter &gt; 24&#039;hFFFFFF)<br \/>\n        \/\/ \u89e6\u53d1\u7cfb\u7edf\u590d\u4f4d\u6216\u6062\u590d\u5e8f\u5217<br \/>\n    else<br \/>\n        watchdog_counter &lt;&#061; watchdog_counter &#043; 1;<br \/>\nend<\/p>\n<p>\/\/ \u6e29\u5ea6\u4f20\u611f\u5668\u8bfb\u6570\u5904\u7406<br \/>\nreg [11:0] temperature;<br \/>\nalways &#064;(posedge clk) begin<br \/>\n    if (temperature &gt; 12&#039;h300) \/\/ \u8d85\u8fc775\u00b0C<br \/>\n        \/\/ \u964d\u4f4e\u4eae\u5ea6\u6216\u5173\u95ed\u663e\u793a<br \/>\nend<\/p>\n<p>\/\/ \u7535\u538b\u76d1\u6d4b<br \/>\nreg [11:0] voltage;<br \/>\nalways &#064;(posedge clk) begin<br \/>\n    if (voltage &lt; 12&#039;h200) \/\/ \u7535\u538b\u8fc7\u4f4e<br \/>\n        \/\/ \u8fdb\u5165\u4f4e\u529f\u8017\u6a21\u5f0f<br \/>\nend<br \/>\nendmodule<\/p>\n<p>\u8fd9\u4e9b\u989d\u5916\u7684\u4fdd\u62a4\u63aa\u65bd\u786e\u4fdd\u4e86\u5728\u6700\u82db\u523b\u7684\u73af\u5883\u4e2d\u4e5f\u80fd\u4fdd\u6301\u53ef\u9760\u7684\u663e\u793a\u6027\u80fd\u3002<\/p>\n<h3>5. \u9ad8\u7ea7\u4f18\u5316\u6280\u5de7\u4e0e\u6027\u80fd\u63d0\u5347<\/h3>\n<p>\u7ecf\u8fc7\u591a\u4e2a\u9879\u76ee\u7684\u5b9e\u8df5&#xff0c;\u6211\u603b\u7ed3\u51fa\u4e00\u4e9b\u663e\u8457\u63d0\u5347\u52a8\u6001\u6570\u7801\u7ba1\u663e\u793a\u6548\u679c\u7684\u9ad8\u7ea7\u6280\u5de7\u3002\u8fd9\u4e9b\u4f18\u5316\u4e0d\u4ec5\u6539\u5584\u4e86\u89c6\u89c9\u4f53\u9a8c&#xff0c;\u8fd8\u964d\u4f4e\u4e86\u7cfb\u7edf\u529f\u8017\u548c\u786c\u4ef6\u6210\u672c\u3002<\/p>\n<p>\u4eae\u5ea6\u5747\u5300\u6027\u4f18\u5316&#xff1a;<br \/>\n\u7531\u4e8e\u52a8\u6001\u626b\u63cf\u7684\u7279\u6027&#xff0c;\u4e0d\u540c\u6570\u7801\u7ba1\u53ef\u80fd\u663e\u793a\u8f7b\u5fae\u4eae\u5ea6\u5dee\u5f02\u3002\u901a\u8fc7\u7cbe\u786e\u63a7\u5236\u6bcf\u4e2a\u6bb5\u7684\u70b9\u4eae\u65f6\u95f4&#xff0c;\u53ef\u4ee5\u8865\u507f\u8fd9\u79cd\u5dee\u5f02&#xff1a;<\/p>\n<p>\/\/ \u8109\u5bbd\u8c03\u5236\u4eae\u5ea6\u63a7\u5236<br \/>\nmodule pwm_brightness (<br \/>\n    input clk,<br \/>\n    input [2:0] brightness_level,<br \/>\n    input [7:0] segment_data,<br \/>\n    output reg [7:0] segment_out<br \/>\n);<\/p>\n<p>reg [7:0] pwm_counter;<br \/>\nreg [7:0] brightness_threshold;<\/p>\n<p>always &#064;(*) begin<br \/>\n    case (brightness_level)<br \/>\n        0: brightness_threshold &#061; 8&#039;h10;<br \/>\n        1: brightness_threshold &#061; 8&#039;h40;<br \/>\n        2: brightness_threshold &#061; 8&#039;h80;<br \/>\n        3: brightness_threshold &#061; 8&#039;hC0;<br \/>\n        default: brightness_threshold &#061; 8&#039;hFF;<br \/>\n    endcase<br \/>\nend<\/p>\n<p>always &#064;(posedge clk) begin<br \/>\n    pwm_counter &lt;&#061; pwm_counter &#043; 1;<br \/>\n    segment_out &lt;&#061; (pwm_counter &lt; brightness_threshold) ? segment_data : 8&#039;hFF;<br \/>\nend<br \/>\nendmodule<\/p>\n<p>\u529f\u8017\u4f18\u5316\u7b56\u7565&#xff1a;<br \/>\n\u5728\u7535\u6c60\u4f9b\u7535\u7684\u5e94\u7528\u4e2d&#xff0c;\u529f\u8017\u662f\u5173\u952e\u8003\u91cf\u3002\u901a\u8fc7\u667a\u80fd\u7684\u663e\u793a\u7ba1\u7406&#xff0c;\u53ef\u4ee5\u663e\u8457\u5ef6\u957f\u7535\u6c60\u5bff\u547d&#xff1a;<\/p>\n<ul>\n<li>\u81ea\u9002\u5e94\u5237\u65b0\u7387&#xff1a;\u5728\u663e\u793a\u5185\u5bb9\u7a33\u5b9a\u65f6\u964d\u4f4e\u5237\u65b0\u7387<\/li>\n<li>\u90e8\u5206\u66f4\u65b0&#xff1a;\u53ea\u66f4\u65b0\u53d8\u5316\u7684\u6570\u5b57&#xff0c;\u51cf\u5c11\u6574\u4f53\u5207\u6362\u6b21\u6570<\/li>\n<li>\u7761\u7720\u6a21\u5f0f&#xff1a;\u5728\u65e0\u7528\u6237\u4ea4\u4e92\u65f6\u8fdb\u5165\u4f4e\u529f\u8017\u72b6\u6001<\/li>\n<\/ul>\n<p>\u6297\u5e72\u6270\u8bbe\u8ba1&#xff1a;<br \/>\n\u5de5\u4e1a\u73af\u5883\u4e2d\u7684\u7535\u6c14\u566a\u58f0\u53ef\u80fd\u5f15\u8d77\u663e\u793a\u5f02\u5e38\u3002\u4ee5\u4e0b\u6280\u672f\u53ef\u4ee5\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b&#xff1a;<\/p>\n<p>\/\/ \u6570\u5b57\u6ee4\u6ce2\u5668\u6d88\u9664\u6296\u52a8<br \/>\nmodule debounce_filter (<br \/>\n    input clk,<br \/>\n    input noisy_signal,<br \/>\n    output reg clean_signal<br \/>\n);<\/p>\n<p>reg [3:0] shift_reg;<br \/>\nalways &#064;(posedge clk) begin<br \/>\n    shift_reg &lt;&#061; {shift_reg[2:0], noisy_signal};<\/p>\n<p>    \/\/ \u53ea\u6709\u5f53\u8fde\u7eed4\u4e2a\u5468\u671f\u90fd\u76f8\u540c\u65f6\u624d\u6539\u53d8\u8f93\u51fa<br \/>\n    if (shift_reg &#061;&#061; 4&#039;b1111)<br \/>\n        clean_signal &lt;&#061; 1&#039;b1;<br \/>\n    else if (shift_reg &#061;&#061; 4&#039;b0000)<br \/>\n        clean_signal &lt;&#061; 1&#039;b0;<br \/>\nend<br \/>\nendmodule<\/p>\n<h3>6. \u672a\u6765\u53d1\u5c55\u8d8b\u52bf\u4e0e\u521b\u65b0\u5e94\u7528<\/h3>\n<p>\u52a8\u6001\u6570\u7801\u7ba1\u6280\u672f\u867d\u7136\u6210\u719f&#xff0c;\u4f46\u4ecd\u5728\u65b0\u5174\u5e94\u7528\u4e2d\u627e\u5230\u65b0\u7684\u751f\u547d\u3002\u4ece\u667a\u80fd\u5bb6\u5c45\u5230\u5de5\u4e1a4.0&#xff0c;\u8fd9\u9879\u7ecf\u5178\u6280\u672f\u6b63\u5728\u7ecf\u5386\u6709\u8da3\u7684\u53d8\u9769\u3002<\/p>\n<p>\u65b0\u5174\u5e94\u7528\u573a\u666f&#xff1a;<\/p>\n<ul>\n<li>\u53ef\u7a7f\u6234\u8bbe\u5907&#xff1a;\u5fae\u578b\u5316\u6570\u7801\u7ba1\u5728\u667a\u80fd\u624b\u8868\u4e2d\u7684\u5e94\u7528<\/li>\n<li>\u6c7d\u8f66\u7535\u5b50&#xff1a;\u9ad8\u4eae\u5ea6\u6570\u7801\u7ba1\u5728\u6c7d\u8f66\u4eea\u8868\u76d8\u7684\u56de\u5f52<\/li>\n<li>\u7269\u8054\u7f51\u663e\u793a&#xff1a;\u4f4e\u529f\u8017\u6570\u7801\u7ba1\u5728\u5206\u5e03\u5f0f\u4f20\u611f\u5668\u8282\u70b9\u7684\u72b6\u6001\u6307\u793a<\/li>\n<\/ul>\n<p>\u6280\u672f\u878d\u5408\u521b\u65b0&#xff1a;<br \/>\n\u6211\u6700\u611f\u5174\u8da3\u7684\u662f\u5c06\u4f20\u7edf\u6570\u7801\u7ba1\u4e0e\u73b0\u4ee3\u6280\u672f\u7ed3\u5408\u7684\u521b\u65b0\u5e94\u7528\u3002\u4f8b\u5982&#xff0c;\u5c06\u6570\u7801\u7ba1\u4e0eLED\u7167\u660e\u7ed3\u5408&#xff0c;\u521b\u5efa\u5177\u6709\u590d\u53e4\u7f8e\u611f\u4f46\u529f\u80fd\u73b0\u4ee3\u7684\u73af\u5883\u663e\u793a\u8bbe\u5907\u3002\u6216\u8005\u5728\u827a\u672f\u88c5\u7f6e\u4e2d\u4f7f\u7528\u6570\u7801\u7ba1&#xff0c;\u5229\u7528\u5176\u72ec\u7279\u7684\u89c6\u89c9\u7279\u6027\u521b\u9020\u52a8\u6001\u5149\u5f71\u6548\u679c\u3002<\/p>\n<p>\u5728\u4e00\u4e2a\u6700\u8fd1\u7684\u9879\u76ee\u4e2d&#xff0c;\u6211\u4eec\u751a\u81f3\u5c06\u6570\u7801\u7ba1\u7528\u4e8e\u751f\u7269\u533b\u5b66\u8bbe\u5907\u7684\u663e\u793a\u754c\u9762\u2014\u2014\u90a3\u79cd\u67d4\u548c\u7684\u5149\u7ebf\u7279\u522b\u9002\u5408\u591c\u95f4\u4f7f\u7528&#xff0c;\u4e0d\u4f1a\u50cfLCD\u90a3\u6837\u5e72\u6270\u60a3\u8005\u7684\u7761\u7720\u3002<\/p>\n<p>\u5f00\u53d1\u5de5\u5177\u6f14\u8fdb&#xff1a;<br \/>\n\u73b0\u4ee3FPGA\u5f00\u53d1\u5de5\u5177\u4e5f\u4e3a\u6570\u7801\u7ba1\u8bbe\u8ba1\u5e26\u6765\u4e86\u65b0\u7684\u53ef\u80fd\u6027\u3002\u9ad8\u7ea7\u7efc\u5408\u5de5\u5177\u5141\u8bb8\u6211\u4eec\u4ee5\u66f4\u62bd\u8c61\u7684\u65b9\u5f0f\u63cf\u8ff0\u663e\u793a\u903b\u8f91&#xff0c;\u800c\u786c\u4ef6\u52a0\u901f\u7684\u4eff\u771f\u73af\u5883\u4f7f\u5f97\u8c03\u8bd5\u590d\u6742\u7684\u65f6\u5e8f\u95ee\u9898\u53d8\u5f97\u66f4\u52a0\u5bb9\u6613\u3002<\/p>\n<p>\u8bb0\u5f97\u6709\u4e00\u6b21\u8c03\u8bd5\u4e00\u4e2a\u7279\u522b\u68d8\u624b\u7684\u95ea\u70c1\u95ee\u9898&#xff0c;\u6700\u7ec8\u53d1\u73b0\u662f\u7535\u6e90\u8f68\u4e0a\u7684\u5fae\u5c0f\u6ce2\u52a8\u9020\u6210\u7684\u3002\u8fd9\u79cd\u7ecf\u5386\u63d0\u9192\u6211\u4eec&#xff0c;\u5728\u6570\u5b57\u7cfb\u7edf\u8bbe\u8ba1\u4e2d&#xff0c;\u6c38\u8fdc\u4e0d\u80fd\u5ffd\u89c6\u6a21\u62df\u4e16\u754c\u7684\u7269\u7406\u73b0\u5b9e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ece\u89c6\u89c9\u6682\u7559\u5230\u7cbe\u51c6\u8ba1\u65f6&#xff1a;FPGA\u52a8\u6001\u6570\u7801\u7ba1\u80cc\u540e\u7684\u5de5\u7a0b\u7f8e\u5b66<br \/>\n\u5728\u6570\u5b57\u4e16\u754c\u7684\u6784\u5efa\u4e2d&#xff0c;\u6211\u4eec\u5e38\u5e38\u8ffd\u6c42\u90a3\u4e9b\u5c06\u7cbe\u5bc6\u5de5\u7a0b\u4e0e\u4eba\u7c7b\u611f\u77e5\u65e0\u7f1d\u878d\u5408\u7684\u89e3\u51b3\u65b9\u6848\u3002FPGA\u52a8\u6001\u6570\u7801\u7ba1\u663e\u793a\u6280\u672f\u6b63\u662f\u8fd9\u6837\u4e00\u4e2a\u5b8c\u7f8e\u5178\u8303\u2014\u2014\u5b83\u4e0d\u4ec5\u662f\u7535\u5b50\u5de5\u7a0b\u7684\u827a\u672f\u54c1&#xff0c;\u66f4\u662f\u5bf9\u4eba\u7c7b\u89c6\u89c9\u7279\u6027\u7684\u6df1\u5ea6\u7406\u89e3\u548c\u5de7\u5999\u5229\u7528\u3002\u5f53\u6211\u4eec\u51dd\u89c6\u90a3\u4e9b\u6d41\u52a8\u7684\u6570\u5b57\u65f6&#xff0c;\u5f88\u5c11\u6709\u4eba\u610f\u8bc6\u5230\u80cc\u540e\u662f\u4e00\u573a\u5149\u5b66\u3001\u7535\u5b50\u5b66\u4e0e\u795e\u7ecf\u79d1\u5b66\u7684\u7cbe\u5999\u5171\u821e\u3002<br \/>\n1. \u89c6\u89c9\u6682\u7559&#xff1a;\u751f\u7269\u5b66\u539f\u7406\u4e0e\u5de5\u7a0b\u5e94\u7528\u7684\u5b8c\u7f8e\u9082\u9005<br 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