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BC\u3002<\/p>\n<p>\u5728CPLD\u4e2d\uff0c\u4e0e\u95e8\u9635\u5217\u4f1a\u4ea7\u751f\u8fd9\u4e09\u4e2a\u4e58\u79ef\u9879\uff0c\u7136\u540e\u6216\u95e8\u9635\u5217\u5c06\u5b83\u4eec\u76f8\u52a0\uff0c\u6700\u7ec8\u5f97\u5230\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u7684CPLD\u5668\u4ef6\u4e2d\uff0c\u4e0e\u9635\u5217\u548c\u6216\u9635\u5217\u90fd\u662f\u901a\u8fc7\u53ef\u7f16\u7a0b\u7684\u8fde\u63a5\u70b9\u6765\u5b9e\u73b0\u7684\u3002<\/p>\n<p>\u8fd9\u4e9b\u8fde\u63a5\u70b9\u5728\u65e9\u671f\u7684\u5668\u4ef6\u4e2d\u662f\u7194\u4e1d\uff0c\u70e7\u65ad\u6216\u4fdd\u7559\u6765\u51b3\u5b9a\u8fde\u63a5\u4e0e\u5426\u3002<\/p>\n<p>\u800c\u5728\u73b0\u4ee3\u7684CPLD\u4e2d\uff0c\u901a\u5e38\u4f7f\u7528EEPROM\u6216Flash\u5355\u5143\u6765\u63a7\u5236\u8fde\u63a5\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u53cd\u590d\u7f16\u7a0b\u4e86\u3002<\/p>\n<h3>2.2 \u5b8f\u5355\u5143\u7684\u529f\u80fd<\/h3>\n<p>\u5b8f\u5355\u5143\u662fCPLD\u4e2d\u6700\u57fa\u672c\u7684\u903b\u8f91\u5355\u5143\uff0c\u5b83\u7684\u8bbe\u8ba1\u975e\u5e38\u5de7\u5999\u3002<\/p>\n<p>\u4e00\u4e2a\u5178\u578b\u7684\u5b8f\u5355\u5143\u5305\u542b\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\uff1a<\/p>\n<p>\u9996\u5148\u662f\u4e58\u79ef\u9879\u5206\u914d\u5668\uff0c\u5b83\u4ece\u4e0e\u9635\u5217\u63a5\u6536\u82e5\u5e72\u4e2a\u4e58\u79ef\u9879\uff0c\u5e76\u5c06\u5b83\u4eec\u5206\u914d\u7ed9\u6216\u95e8\u3002<\/p>\n<p>\u4e0d\u540c\u7684CPLD\u5668\u4ef6\uff0c\u6bcf\u4e2a\u5b8f\u5355\u5143\u80fd\u63a5\u6536\u7684\u4e58\u79ef\u9879\u6570\u91cf\u4e0d\u540c\uff0c\u4e00\u822c\u57285\u523016\u4e2a\u4e4b\u95f4\u3002<\/p>\n<p>\u5982\u679c\u4e00\u4e2a\u903b\u8f91\u51fd\u6570\u9700\u8981\u7684\u4e58\u79ef\u9879\u8d85\u8fc7\u4e86\u8fd9\u4e2a\u6570\u91cf\uff0c\u5c31\u9700\u8981\u4f7f\u7528\u591a\u4e2a\u5b8f\u5355\u5143\u6765\u5b9e\u73b0\u3002<\/p>\n<p>\u5176\u6b21\u662f\u53ef\u914d\u7f6e\u7684\u6216\u95e8\u548c\u5f02\u6216\u95e8\uff0c\u5b83\u4eec\u53ef\u4ee5\u5b9e\u73b0\u5404\u79cd\u7ec4\u5408\u903b\u8f91\u529f\u80fd\u3002<\/p>\n<p>\u5f02\u6216\u95e8\u7279\u522b\u6709\u7528\uff0c\u56e0\u4e3a\u5f88\u591a\u5b9e\u9645\u5e94\u7528\u4e2d\u9700\u8981\u5b9e\u73b0\u5947\u5076\u6821\u9a8c\u3001\u52a0\u6cd5\u5668\u7b49\u529f\u80fd\uff0c\u8fd9\u4e9b\u90fd\u9700\u8981\u5f02\u6216\u8fd0\u7b97\u3002<\/p>\n<p>\u7136\u540e\u662f\u89e6\u53d1\u5668\uff0c\u901a\u5e38\u662fD\u89e6\u53d1\u5668\uff0c\u7528\u4e8e\u5b9e\u73b0\u65f6\u5e8f\u903b\u8f91\u3002<\/p>\n<p>\u8fd9\u4e2a\u89e6\u53d1\u5668\u53ef\u4ee5\u914d\u7f6e\u4e3a\u65c1\u8def\u6a21\u5f0f\u6216\u5bc4\u5b58\u6a21\u5f0f\u3002<\/p>\n<p>\u89e6\u53d1\u5668\u8fd8\u53ef\u4ee5\u914d\u7f6e\u65f6\u949f\u6781\u6027\u3001\u590d\u4f4d\u65b9\u5f0f\u3001\u7f6e\u4f4d\u65b9\u5f0f\u7b49\u53c2\u6570\u3002<\/p>\n<p>\u6700\u540e\u662f\u53cd\u9988\u8def\u5f84\uff0c\u5b8f\u5355\u5143\u7684\u8f93\u51fa\u53ef\u4ee5\u53cd\u9988\u5230\u4e92\u8fde\u9635\u5217\uff0c\u4ece\u800c\u53ef\u4ee5\u88ab\u5176\u4ed6\u5b8f\u5355\u5143\u4f7f\u7528\u3002<\/p>\n<p>\u8fd9\u79cd\u53cd\u9988\u673a\u5236\u4f7f\u5f97CPLD\u53ef\u4ee5\u5b9e\u73b0\u590d\u6742\u7684\u591a\u7ea7\u903b\u8f91\u548c\u72b6\u6001\u673a\u3002<\/p>\n<h3>2.3 \u65f6\u949f\u548c\u590d\u4f4d\u7ba1\u7406<\/h3>\n<p>\u5728\u6570\u5b57\u7cfb\u7edf\u8bbe\u8ba1\u4e2d\uff0c\u65f6\u949f\u548c\u590d\u4f4d\u4fe1\u53f7\u7684\u7ba1\u7406\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p>CPLD\u901a\u5e38\u63d0\u4f9b\u4e13\u7528\u7684\u5168\u5c40\u65f6\u949f\u7f51\u7edc\u548c\u590d\u4f4d\u7f51\u7edc\uff0c\u4ee5\u786e\u4fdd\u8fd9\u4e9b\u5173\u952e\u4fe1\u53f7\u80fd\u591f\u4ee5\u6700\u5c0f\u7684\u5ef6\u8fdf\u548c\u6700\u5c0f\u7684\u504f\u659c\u5206\u914d\u5230\u6240\u6709\u7684\u89e6\u53d1\u5668\u3002<\/p>\n<p>\u5927\u591a\u6570CPLD\u5668\u4ef6\u63d0\u4f9b2\u52304\u4e2a\u5168\u5c40\u65f6\u949f\u8f93\u5165\uff0c\u8fd9\u4e9b\u65f6\u949f\u53ef\u4ee5\u9a71\u52a8\u5668\u4ef6\u5185\u6240\u6709\u7684\u89e6\u53d1\u5668\u800c\u4e0d\u9700\u8981\u7ecf\u8fc7\u4e00\u822c\u7684\u4e92\u8fde\u7f51\u7edc\u3002<\/p>\n<p>\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\u53ef\u4ee5\u4fdd\u8bc1\u65f6\u949f\u5230\u8fbe\u5404\u4e2a\u89e6\u53d1\u5668\u7684\u5ef6\u8fdf\u57fa\u672c\u4e00\u81f4\uff0c\u907f\u514d\u4e86\u65f6\u949f\u504f\u659c\u95ee\u9898\u3002<\/p>\n<p>\u5728\u6211\u4e4b\u524d\u505a\u7684\u4e00\u4e2a\u9879\u76ee\u4e2d\uff0c\u9700\u8981\u7528CPLD\u5b9e\u73b0\u4e00\u4e2a\u591a\u901a\u9053\u7684\u540c\u6b65\u91c7\u6837\u63a7\u5236\u5668\u3002<\/p>\n<p>\u56e0\u4e3a\u4f7f\u7528\u4e86\u5168\u5c40\u65f6\u949f\u7f51\u7edc\uff0c\u6240\u6709\u901a\u9053\u7684\u91c7\u6837\u65f6\u523b\u53ef\u4ee5\u4fdd\u8bc1\u5728\u7eb3\u79d2\u7ea7\u522b\u7684\u7cbe\u5ea6\u5185\u540c\u6b65\uff0c\u8fd9\u5bf9\u4e8e\u540e\u7eed\u7684\u4fe1\u53f7\u5904\u7406\u975e\u5e38\u5173\u952e\u3002<\/p>\n<h2>3. CPLD\u7684\u5f00\u53d1\u6d41\u7a0b<\/h2>\n<h3>3.1 \u8bbe\u8ba1\u8f93\u5165<\/h3>\n<p>CPLD\u7684\u5f00\u53d1\u901a\u5e38\u4f7f\u7528\u786c\u4ef6\u63cf\u8ff0\u8bed\u8a00\uff0c\u4e3b\u6d41\u7684\u6709Verilog\u548cVHDL\u4e24\u79cd\u3002<\/p>\n<p>\u76f8\u6bd4\u4e4b\u4e0b\uff0cVerilog\u7684\u8bed\u6cd5\u66f4\u63a5\u8fd1C\u8bed\u8a00\uff0c\u5bf9\u4e8e\u6211\u4eec\u8fd9\u4e9b\u505a\u5d4c\u5165\u5f0f\u8f6f\u4ef6\u51fa\u8eab\u7684\u4eba\u6765\u8bf4\u66f4\u5bb9\u6613\u4e0a\u624b\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684Verilog\u4ee3\u7801\u793a\u4f8b\uff0c\u5b9e\u73b0\u4e00\u4e2a8\u4f4d\u7684\u8ba1\u6570\u5668\uff1a<\/p>\n<pre><code class=\"verilog\">module counter_8bit(\n    input wire clk,           \/\/ \u65f6\u949f\u8f93\u5165\n    input wire rst_n,         \/\/ \u590d\u4f4d\u4fe1\u53f7\uff0c\u4f4e\u7535\u5e73\u6709\u6548\n    input wire enable,        \/\/ \u4f7f\u80fd\u4fe1\u53f7\n    output reg [7:0] count    \/\/ 8\u4f4d\u8ba1\u6570\u8f93\u51fa\n);\n\nalways @(posedge clk or negedge rst_n) begin\n    if (!rst_n) begin\n        count &lt;= 8'd0;        \/\/ \u5f02\u6b65\u590d\u4f4d\n    end else if (enable) begin\n        count &lt;= count + 1'b1; \/\/ \u8ba1\u6570\u52a01\n    end\nend\n\nendmodule<\/code><\/pre>\n<p>\u8fd9\u4e2a\u8ba1\u6570\u5668\u6a21\u5757\u6709\u65f6\u949f\u3001\u590d\u4f4d\u3001\u4f7f\u80fd\u4e09\u4e2a\u8f93\u5165\u4fe1\u53f7\uff0c\u4ee5\u53ca\u4e00\u4e2a8\u4f4d\u7684\u8ba1\u6570\u8f93\u51fa\u3002<\/p>\n<p>\u5f53\u590d\u4f4d\u4fe1\u53f7\u4e3a\u4f4e\u7535\u5e73\u65f6\uff0c\u8ba1\u6570\u5668\u6e05\u96f6\uff1b\u5f53\u4f7f\u80fd\u4fe1\u53f7\u4e3a\u9ad8\u7535\u5e73\u65f6\uff0c\u6bcf\u4e2a\u65f6\u949f\u4e0a\u5347\u6cbf\u8ba1\u6570\u5668\u52a01\u3002<\/p>\n<p>\u8fd9\u79cd\u7b80\u5355\u7684\u903b\u8f91\u5728CPLD\u4e2d\u5b9e\u73b0\u8d77\u6765\u975e\u5e38\u9ad8\u6548\u3002<\/p>\n<p>\u9664\u4e86HDL\uff0c\u4e00\u4e9bCPLD\u5f00\u53d1\u5de5\u5177\u8fd8\u652f\u6301\u539f\u7406\u56fe\u8f93\u5165\u65b9\u5f0f\u3002<\/p>\n<p>\u5bf9\u4e8e\u4e00\u4e9b\u7b80\u5355\u7684\u903b\u8f91\uff0c\u4f7f\u7528\u539f\u7406\u56fe\u53ef\u80fd\u66f4\u76f4\u89c2\u3002<\/p>\n<p>\u4f46\u5bf9\u4e8e\u590d\u6742\u7684\u8bbe\u8ba1\uff0cHDL\u7684\u4f18\u52bf\u5c31\u4f53\u73b0\u51fa\u6765\u4e86\uff1a\u4ee3\u7801\u66f4\u5bb9\u6613\u7ef4\u62a4\u3001\u4fee\u6539\u548c\u590d\u7528\u3002<\/p>\n<h3>3.2 \u7efc\u5408\u4e0e\u9002\u914d<\/h3>\n<p>\u5199\u5b8cHDL\u4ee3\u7801\u540e\uff0c\u9700\u8981\u7ecf\u8fc7\u7efc\u5408\u548c\u9002\u914d\u4e24\u4e2a\u6b65\u9aa4\uff0c\u624d\u80fd\u751f\u6210\u53ef\u4ee5\u4e0b\u8f7d\u5230CPLD\u7684\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n<p>\u7efc\u5408\u8fc7\u7a0b\u662f\u5c06HDL\u4ee3\u7801\u8f6c\u6362\u4e3a\u903b\u8f91\u95e8\u7ea7\u7684\u7f51\u8868\u3002<\/p>\n<p>\u7efc\u5408\u5668\u4f1a\u5206\u6790\u4f60\u7684\u4ee3\u7801\uff0c\u4f18\u5316\u903b\u8f91\uff0c\u5e76\u5c06\u5176\u6620\u5c04\u5230CPLD\u7684\u57fa\u672c\u903b\u8f91\u5355\u5143\u4e0a\u3002<\/p>\n<p>\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u7efc\u5408\u5668\u4f1a\u505a\u5f88\u591a\u4f18\u5316\u5de5\u4f5c\uff0c\u6bd4\u5982\u6d88\u9664\u5197\u4f59\u903b\u8f91\u3001\u5408\u5e76\u76f8\u540c\u7684\u903b\u8f91\u3001\u4f18\u5316\u5173\u952e\u8def\u5f84\u7b49\u3002<\/p>\n<p>\u9002\u914d\u8fc7\u7a0b\u5219\u662f\u5c06\u7efc\u5408\u540e\u7684\u903b\u8f91\u7f51\u8868\u6620\u5c04\u5230\u5177\u4f53\u7684CPLD\u5668\u4ef6\u4e0a\u3002<\/p>\n<p>\u8fd9\u4e2a\u8fc7\u7a0b\u9700\u8981\u51b3\u5b9a\u6bcf\u4e2a\u903b\u8f91\u5355\u5143\u4f7f\u7528\u54ea\u4e2a\u5b8f\u5355\u5143\uff0c\u5404\u4e2a\u4fe1\u53f7\u4f7f\u7528\u54ea\u4e9b\u4e92\u8fde\u8d44\u6e90\uff0cI\/O\u4fe1\u53f7\u4f7f\u7528\u54ea\u4e9b\u5f15\u811a\u7b49\u3002<\/p>\n<p>\u9002\u914d\u7684\u8d28\u91cf\u76f4\u63a5\u5f71\u54cd\u5230\u6700\u7ec8\u8bbe\u8ba1\u7684\u6027\u80fd\u548c\u8d44\u6e90\u5229\u7528\u7387\u3002<\/p>\n<p>\u5728\u6211\u7684\u7ecf\u9a8c\u4e2d\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u5bf9\u65f6\u5e8f\u8981\u6c42\u4e25\u683c\u7684\u8bbe\u8ba1\uff0c\u53ef\u80fd\u9700\u8981\u53cd\u590d\u8c03\u6574\u4ee3\u7801\u548c\u7ea6\u675f\u6761\u4ef6\uff0c\u591a\u6b21\u8fdb\u884c\u7efc\u5408\u548c\u9002\u914d\uff0c\u624d\u80fd\u8fbe\u5230\u6ee1\u610f\u7684\u7ed3\u679c\u3002<\/p>\n<p>\u8fd9\u4e2a\u8fc7\u7a0b\u6709\u70b9\u50cf\u8f6f\u4ef6\u5f00\u53d1\u4e2d\u7684\u6027\u80fd\u4f18\u5316\uff0c\u9700\u8981\u8010\u5fc3\u548c\u7ecf\u9a8c\u3002<\/p>\n<h3>3.3 \u4eff\u771f\u4e0e\u9a8c\u8bc1<\/h3>\n<p>\u5728\u5c06\u8bbe\u8ba1\u4e0b\u8f7d\u5230\u5b9e\u9645\u7684CPLD\u5668\u4ef6\u4e4b\u524d\uff0c\u8fdb\u884c\u5145\u5206\u7684\u4eff\u771f\u9a8c\u8bc1\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002<\/p>\n<p>\u4eff\u771f\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u53d1\u73b0\u8bbe\u8ba1\u4e2d\u7684\u903b\u8f91\u9519\u8bef\uff0c\u800c\u4e14\u4fee\u6539\u8d77\u6765\u6bd4\u5728\u786c\u4ef6\u4e0a\u8c03\u8bd5\u8981\u65b9\u4fbf\u5f97\u591a\u3002<\/p>\n<p>CPLD\u7684\u4eff\u771f\u901a\u5e38\u5206\u4e3a\u529f\u80fd\u4eff\u771f\u548c\u65f6\u5e8f\u4eff\u771f\u4e24\u79cd\u3002<\/p>\n<p>\u529f\u80fd\u4eff\u771f\u53ea\u9a8c\u8bc1\u903b\u8f91\u529f\u80fd\u662f\u5426\u6b63\u786e\uff0c\u4e0d\u8003\u8651\u5b9e\u9645\u7684\u5ef6\u8fdf\u3002<\/p>\n<p>\u800c\u65f6\u5e8f\u4eff\u771f\u5219\u4f1a\u8003\u8651CPLD\u5185\u90e8\u7684\u5b9e\u9645\u5ef6\u8fdf\uff0c\u53ef\u4ee5\u53d1\u73b0\u4e00\u4e9b\u65f6\u5e8f\u76f8\u5173\u7684\u95ee\u9898\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684testbench\u793a\u4f8b\uff0c\u7528\u4e8e\u6d4b\u8bd5\u524d\u9762\u76848\u4f4d\u8ba1\u6570\u5668\uff1a<\/p>\n<pre><code class=\"verilog\">module counter_8bit_tb;\n\nreg clk;\nreg rst_n;\nreg enable;\nwire [7:0] count;\n\n\/\/ \u5b9e\u4f8b\u5316\u88ab\u6d4b\u8bd5\u6a21\u5757\ncounter_8bit uut (\n    .clk(clk),\n    .rst_n(rst_n),\n    .enable(enable),\n    .count(count)\n);\n\n\/\/ \u751f\u6210\u65f6\u949f\u4fe1\u53f7\uff0c\u5468\u671f\u4e3a20ns\uff0850MHz\uff09\ninitial begin\n    clk = 0;\n    forever #10 clk = ~clk;\nend\n\n\/\/ \u6d4b\u8bd5\u5e8f\u5217\ninitial begin\n    \/\/ \u521d\u59cb\u5316\u4fe1\u53f7\n    rst_n = 0;\n    enable = 0;\n    \n    \/\/ \u590d\u4f4d100ns\n    #100;\n    rst_n = 1;\n    \n    \/\/ \u4f7f\u80fd\u8ba1\u6570\u5668\n    #50;\n    enable = 1;\n    \n    \/\/ \u8fd0\u884c500ns\u89c2\u5bdf\u8ba1\u6570\n    #500;\n    \n    \/\/ \u7981\u6b62\u8ba1\u6570\n    enable = 0;\n    #100;\n    \n    \/\/ \u518d\u6b21\u4f7f\u80fd\n    enable = 1;\n    #300;\n    \n    $stop;\nend\n\nendmodule<\/code><\/pre>\n<p>\u8fd9\u4e2atestbench\u4f1a\u751f\u6210\u65f6\u949f\u4fe1\u53f7\uff0c\u5e76\u63a7\u5236\u590d\u4f4d\u548c\u4f7f\u80fd\u4fe1\u53f7\uff0c\u7136\u540e\u89c2\u5bdf\u8ba1\u6570\u5668\u7684\u8f93\u51fa\u662f\u5426\u7b26\u5408\u9884\u671f\u3002<\/p>\n<p>\u901a\u8fc7\u4eff\u771f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u6ce2\u5f62\u56fe\u4e2d\u6e05\u695a\u5730\u770b\u5230\u8ba1\u6570\u5668\u7684\u5de5\u4f5c\u8fc7\u7a0b\u3002<\/p>\n<h2>4. CPLD\u7684\u5b9e\u9645\u5e94\u7528<\/h2>\n<h3>4.1 \u63a5\u53e3\u8f6c\u6362\u4e0e\u6269\u5c55<\/h3>\n<p>\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u63a5\u53e3\u8f6c\u6362\u662fCPLD\u6700\u5e38\u89c1\u7684\u5e94\u7528\u4e4b\u4e00\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\uff0c\u4f60\u7684\u4e3b\u63a7\u82af\u7247\u53ea\u6709\u4e00\u4e2aSPI\u63a5\u53e3\uff0c\u4f46\u9700\u8981\u63a7\u5236\u591a\u4e2aSPI\u8bbe\u5907\uff0c\u8fd9\u65f6\u5c31\u53ef\u4ee5\u7528CPLD\u6765\u5b9e\u73b0SPI\u63a5\u53e3\u7684\u6269\u5c55\u548c\u4ef2\u88c1\u3002<\/p>\n<p>\u6211\u66fe\u7ecf\u505a\u8fc7\u4e00\u4e2a\u9879\u76ee\uff0c\u9700\u8981\u5c06\u4e00\u4e2a\u5e76\u884c\u7684LCD\u63a5\u53e3\u8f6c\u6362\u4e3aLVDS\u63a5\u53e3\u3002<\/p>\n<p>\u4f7f\u7528STM32\u7684FSMC\u63a5\u53e3\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u9a71\u52a8\u5e76\u884cLCD\uff0c\u4f46\u9879\u76ee\u8981\u6c42\u4f7f\u7528LVDS\u63a5\u53e3\u7684\u663e\u793a\u5c4f\u4ee5\u964d\u4f4eEMI\u3002<\/p>\n<p>\u8fd9\u65f6\u5019\uff0c\u5728STM32\u548c\u663e\u793a\u5c4f\u4e4b\u95f4\u52a0\u5165\u4e00\u4e2aCPLD\uff0c\u5c31\u5b8c\u7f8e\u5730\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n<p>CPLD\u63a5\u6536FSMC\u7684\u5e76\u884c\u6570\u636e\u548c\u63a7\u5236\u4fe1\u53f7\uff0c\u7136\u540e\u6309\u7167LVDS\u534f\u8bae\u5c06\u6570\u636e\u4e32\u884c\u5316\u8f93\u51fa\u3002<\/p>\n<p>\u8fd9\u79cd\u5e94\u7528\u7684\u597d\u5904\u662f\u4e0d\u9700\u8981\u4fee\u6539\u4e3b\u63a7\u82af\u7247\u7684\u8f6f\u4ef6\uff0c\u53ea\u9700\u8981\u50cf\u9a71\u52a8\u666e\u901a\u5e76\u884cLCD\u4e00\u6837\u64cd\u4f5cFSMC\u63a5\u53e3\u5373\u53ef\u3002<\/p>\n<p>\u6240\u6709\u7684\u534f\u8bae\u8f6c\u6362\u5de5\u4f5c\u90fd\u7531CPLD\u5728\u786c\u4ef6\u5c42\u9762\u5b8c\u6210\uff0c\u800c\u4e14\u901f\u5ea6\u5f88\u5feb\uff0c\u5ef6\u8fdf\u5f88\u5c0f\u3002<\/p>\n<h3>4.2 \u903b\u8f91\u7c98\u5408\u4e0e\u63a7\u5236<\/h3>\n<p>\u5728\u590d\u6742\u7684\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u7ecf\u5e38\u9700\u8981\u4e00\u4e9b&#8221;\u7c98\u5408\u903b\u8f91&#8221;\u6765\u534f\u8c03\u4e0d\u540c\u82af\u7247\u4e4b\u95f4\u7684\u5de5\u4f5c\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\uff0c\u9700\u8981\u6839\u636e\u591a\u4e2a\u4f20\u611f\u5668\u7684\u72b6\u6001\u6765\u63a7\u5236\u67d0\u4e9b\u6267\u884c\u5668\u7684\u52a8\u4f5c\uff0c\u6216\u8005\u9700\u8981\u5b9e\u73b0\u4e00\u4e9b\u590d\u6742\u7684\u65f6\u5e8f\u63a7\u5236\u3002<\/p>\n<p>\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5728\u4e00\u4e2a\u7535\u673a\u63a7\u5236\u7cfb\u7edf\u4e2d\uff0c\u9700\u8981\u6839\u636e\u591a\u4e2a\u9650\u4f4d\u5f00\u5173\u7684\u72b6\u6001\u3001\u7f16\u7801\u5668\u7684\u4fe1\u53f7\u4ee5\u53ca\u4e3b\u63a7\u82af\u7247\u7684\u547d\u4ee4\u6765\u751f\u6210PWM\u4fe1\u53f7\u548c\u65b9\u5411\u63a7\u5236\u4fe1\u53f7\u3002<\/p>\n<p>\u5982\u679c\u7528\u4e3b\u63a7\u82af\u7247\u7684\u8f6f\u4ef6\u6765\u5b9e\u73b0\u8fd9\u4e9b\u903b\u8f91\uff0c\u53ef\u80fd\u4f1a\u56e0\u4e3a\u4e2d\u65ad\u5ef6\u8fdf\u6216\u4efb\u52a1\u8c03\u5ea6\u7684\u95ee\u9898\u5bfc\u81f4\u54cd\u5e94\u4e0d\u591f\u53ca\u65f6\u3002<\/p>\n<p>\u800c\u4f7f\u7528CPLD\u6765\u5b9e\u73b0\u8fd9\u4e9b\u903b\u8f91\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u5728\u7eb3\u79d2\u7ea7\u522b\u7684\u65f6\u95f4\u5185\u505a\u51fa\u54cd\u5e94\uff0c\u5927\u5927\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u5b9e\u65f6\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u72b6\u6001\u673a\u793a\u4f8b\uff0c\u7528\u4e8e\u63a7\u5236\u4e00\u4e2a\u7b80\u5355\u7684\u6b65\u8fdb\u7535\u673a\uff1a<\/p>\n<pre><code class=\"verilog\">module stepper_motor_ctrl(\n    input wire clk,\n    input wire rst_n,\n    input wire [1:0] direction,  \/\/ 00:\u505c\u6b62 01:\u6b63\u8f6c 10:\u53cd\u8f6c\n    input wire step_pulse,       \/\/ \u6b65\u8fdb\u8109\u51b2\n    output reg [3:0] motor_phase \/\/ \u7535\u673a\u76f8\u4f4d\u8f93\u51fa\n);\n\n\/\/ \u72b6\u6001\u5b9a\u4e49\nlocalparam PHASE_0 = 4'b0001;\nlocalparam PHASE_1 = 4'b0010;\nlocalparam PHASE_2 = 4'b0100;\nlocalparam PHASE_3 = 4'b1000;\n\nreg [3:0] current_phase;\nreg step_pulse_d1;\nwire step_pulse_posedge;\n\n\/\/ \u68c0\u6d4b\u6b65\u8fdb\u8109\u51b2\u4e0a\u5347\u6cbf\nalways @(posedge clk or negedge rst_n) begin\n    if (!rst_n)\n        step_pulse_d1 &lt;= 1'b0;\n    else\n        step_pulse_d1 &lt;= step_pulse;\nend\n\nassign step_pulse_posedge = step_pulse &amp; ~step_pulse_d1;\n\n\/\/ \u72b6\u6001\u673a\nalways @(posedge clk or negedge rst_n) begin\n    if (!rst_n) begin\n        current_phase &lt;= PHASE_0;\n    end else if (step_pulse_posedge) begin\n        case (direction)\n            2'b01: begin  \/\/ \u6b63\u8f6c\n                case (current_phase)\n                    PHASE_0: current_phase &lt;= PHASE_1;\n                    PHASE_1: current_phase &lt;= PHASE_2;\n                    PHASE_2: current_phase &lt;= PHASE_3;\n                    PHASE_3: current_phase &lt;= PHASE_0;\n                    default: current_phase &lt;= PHASE_0;\n                endcase\n            end\n            2'b10: begin  \/\/ \u53cd\u8f6c\n                case (current_phase)\n                    PHASE_0: current_phase &lt;= PHASE_3;\n                    PHASE_1: current_phase &lt;= PHASE_0;\n                    PHASE_2: current_phase &lt;= PHASE_1;\n                    PHASE_3: current_phase &lt;= PHASE_2;\n                    default: current_phase &lt;= PHASE_0;\n                endcase\n            end\n            default: current_phase &lt;= current_phase;  \/\/ \u4fdd\u6301\n        endcase\n    end\nend\n\nalways @(*) begin\n    motor_phase = current_phase;\nend\n\nendmodule<\/code><\/pre>\n<p>\u8fd9\u4e2a\u6a21\u5757\u5b9e\u73b0\u4e86\u4e00\u4e2a\u56db\u76f8\u6b65\u8fdb\u7535\u673a\u7684\u63a7\u5236\u903b\u8f91\uff0c\u6839\u636e\u65b9\u5411\u4fe1\u53f7\u548c\u6b65\u8fdb\u8109\u51b2\u6765\u5207\u6362\u7535\u673a\u7684\u76f8\u4f4d\u3002<\/p>\n<p>\u8fd9\u79cd\u903b\u8f91\u5982\u679c\u7528\u8f6f\u4ef6\u5b9e\u73b0\uff0c\u9700\u8981\u5360\u7528CPU\u65f6\u95f4\u5e76\u4e14\u53ef\u80fd\u53d7\u5230\u4e2d\u65ad\u5ef6\u8fdf\u7684\u5f71\u54cd\uff0c\u800c\u7528CPLD\u5b9e\u73b0\u5219\u53ef\u4ee5\u4fdd\u8bc1\u5b9e\u65f6\u6027\u3002<\/p>\n<h3>4.3 \u4fe1\u53f7\u5904\u7406\u4e0e\u6570\u636e\u91c7\u96c6<\/h3>\n<p>CPLD\u5728\u4fe1\u53f7\u5904\u7406\u548c\u6570\u636e\u91c7\u96c6\u7cfb\u7edf\u4e2d\u4e5f\u6709\u5e7f\u6cdb\u5e94\u7528\u3002<\/p>\n<p>\u5b83\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u901f\u7684\u6570\u636e\u7f13\u51b2\u3001\u534f\u8bae\u8f6c\u6362\u3001\u6570\u636e\u9884\u5904\u7406\u7b49\u529f\u80fd\u3002<\/p>\n<p>\u5728\u6211\u53c2\u4e0e\u7684\u4e00\u4e2a\u591a\u901a\u9053\u6570\u636e\u91c7\u96c6\u9879\u76ee\u4e2d\uff0c\u9700\u8981\u540c\u65f6\u91c7\u96c616\u8def\u6a21\u62df\u4fe1\u53f7\u3002<\/p>\n<p>\u6211\u4eec\u4f7f\u7528\u4e86\u4e24\u72478\u901a\u9053\u7684\u9ad8\u901fADC\uff0c\u6bcf\u7247ADC\u7684\u8f93\u51fa\u662f\u5e76\u884c\u6570\u636e\u63a5\u53e3\u3002<\/p>\n<p>\u5982\u679c\u76f4\u63a5\u7528STM32\u6765\u8bfb\u53d6\u8fd9\u4e9b\u6570\u636e\uff0cGPIO\u53e3\u7684\u6570\u91cf\u4f1a\u4e0d\u591f\u7528\uff0c\u800c\u4e14\u5f88\u96be\u4fdd\u8bc1\u591a\u901a\u9053\u7684\u540c\u6b65\u6027\u3002<\/p>\n<p>\u6211\u4eec\u7684\u89e3\u51b3\u65b9\u6848\u662f\u4f7f\u7528\u4e00\u7247CPLD\u6765\u63a5\u6536\u4e24\u7247ADC\u7684\u6570\u636e\uff0c\u5728CPLD\u5185\u90e8\u8fdb\u884c\u6570\u636e\u7f13\u51b2\u548c\u6253\u5305\uff0c\u7136\u540e\u901a\u8fc7\u4e00\u4e2a\u9ad8\u901f\u5e76\u884c\u63a5\u53e3\uff08\u4f20\u8f93\u7ed9STM32\u3002<\/p>\n<p>CPLD\u8fd8\u8d1f\u8d23\u751f\u6210ADC\u7684\u91c7\u6837\u65f6\u949f\u548c\u63a7\u5236\u4fe1\u53f7\uff0c\u4fdd\u8bc1\u6240\u6709\u901a\u9053\u7684\u91c7\u6837\u4e25\u683c\u540c\u6b65\u3002<\/p>\n<p>\u8fd9\u79cd\u67b6\u6784\u7684\u4f18\u70b9\u662f\uff1a\u7b2c\u4e00\uff0c\u8282\u7701\u4e86\u4e3b\u63a7\u82af\u7247\u7684GPIO\u8d44\u6e90\u3002<\/p>\n<p>\u7b2c\u4e8c\uff0c\u63d0\u9ad8\u4e86\u6570\u636e\u91c7\u96c6\u7684\u540c\u6b65\u6027\u548c\u5b9e\u65f6\u6027\u3002<\/p>\n<p>\u7b2c\u4e09\uff0c\u964d\u4f4e\u4e86\u4e3b\u63a7\u82af\u7247\u7684\u8f6f\u4ef6\u590d\u6742\u5ea6\uff0c\u56e0\u4e3a\u6570\u636e\u7684\u7f13\u51b2\u548c\u6253\u5305\u90fd\u7531CPLD\u5728\u786c\u4ef6\u5c42\u9762\u5b8c\u6210\u4e86\u3002<\/p>\n<h3>4.4 \u7cfb\u7edf\u8c03\u8bd5\u4e0e\u6d4b\u8bd5<\/h3>\n<p>CPLD\u8fd8\u53ef\u4ee5\u4f5c\u4e3a\u7cfb\u7edf\u8c03\u8bd5\u548c\u6d4b\u8bd5\u7684\u8f85\u52a9\u5de5\u5177\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\uff0c\u53ef\u4ee5\u7528CPLD\u6765\u751f\u6210\u5404\u79cd\u6d4b\u8bd5\u4fe1\u53f7\uff0c\u6216\u8005\u76d1\u63a7\u7cfb\u7edf\u4e2d\u7684\u5173\u952e\u4fe1\u53f7\u3002<\/p>\n<p>\u5728\u4ea7\u54c1\u5f00\u53d1\u9636\u6bb5\uff0c\u6211\u7ecf\u5e38\u4f1a\u7528CPLD\u6765\u5b9e\u73b0\u4e00\u4e9b\u8c03\u8bd5\u529f\u80fd\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\uff0c\u5728CPLD\u4e2d\u5b9e\u73b0\u4e00\u4e2a\u903b\u8f91\u5206\u6790\u4eea\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u6355\u83b7\u7cfb\u7edf\u4e2d\u7684\u5173\u952e\u4fe1\u53f7\uff0c\u7136\u540e\u901a\u8fc7\u67d0\u4e2a\u63a5\u53e3\uff08\u6bd4\u5982UART\uff09\u8f93\u51fa\u5230PC\u4e0a\u8fdb\u884c\u5206\u6790\u3002<\/p>\n<p>\u8fd9\u6bd4\u4f7f\u7528\u4e13\u95e8\u7684\u903b\u8f91\u5206\u6790\u4eea\u8981\u7075\u6d3b\u5f97\u591a\uff0c\u56e0\u4e3a\u4f60\u53ef\u4ee5\u6839\u636e\u9700\u8981\u968f\u65f6\u4fee\u6539\u89e6\u53d1\u6761\u4ef6\u548c\u91c7\u6837\u903b\u8f91\u3002<\/p>\n<p>\u53e6\u5916\uff0cCPLD\u8fd8\u53ef\u4ee5\u7528\u6765\u6a21\u62df\u4e00\u4e9b\u5916\u90e8\u8bbe\u5907\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\uff0c\u5728\u5f00\u53d1\u9636\u6bb5\uff0c\u67d0\u4e2a\u5916\u90e8\u4f20\u611f\u5668\u8fd8\u6ca1\u6709\u5230\u8d27\uff0c\u4f46\u4f60\u9700\u8981\u6d4b\u8bd5\u4e3b\u63a7\u82af\u7247\u7684\u8f6f\u4ef6\u3002<\/p>\n<p>\u8fd9\u65f6\u5019\u53ef\u4ee5\u7528CPLD\u6765\u6a21\u62df\u8fd9\u4e2a\u4f20\u611f\u5668\u7684\u884c\u4e3a\uff0c\u751f\u6210\u7b26\u5408\u534f\u8bae\u7684\u6570\u636e\u548c\u65f6\u5e8f\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u5728\u6ca1\u6709\u5b9e\u9645\u786c\u4ef6\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u8f6f\u4ef6\u5f00\u53d1\u548c\u6d4b\u8bd5\u4e86\u3002<\/p>\n<h2>5. CPLD\u9009\u578b\u4e0e\u4f7f\u7528\u5efa\u8bae<\/h2>\n<h3>5.1 \u5982\u4f55\u9009\u62e9\u5408\u9002\u7684CPLD<\/h3>\n<p>\u9009\u62e9CPLD\u65f6\u9700\u8981\u8003\u8651\u51e0\u4e2a\u5173\u952e\u56e0\u7d20\u3002<\/p>\n<p>\u9996\u5148\u662f\u903b\u8f91\u8d44\u6e90\uff0c\u901a\u5e38\u7528\u5b8f\u5355\u5143\u7684\u6570\u91cf\u6765\u8861\u91cf\u3002<\/p>\n<p>\u5bf9\u4e8e\u7b80\u5355\u7684\u63a5\u53e3\u8f6c\u6362\uff0c\u53ef\u80fd\u53ea\u9700\u8981\u51e0\u5341\u4e2a\u5b8f\u5355\u5143\u3002<\/p>\n<p>\u800c\u5bf9\u4e8e\u590d\u6742\u7684\u63a7\u5236\u903b\u8f91\uff0c\u53ef\u80fd\u9700\u8981\u51e0\u767e\u4e2a\u5b8f\u5355\u5143\u3002<\/p>\n<p>\u5176\u6b21\u662fI\/O\u8d44\u6e90\uff0c\u5305\u62ecI\/O\u5f15\u811a\u7684\u6570\u91cf\u548c\u652f\u6301\u7684\u7535\u5e73\u6807\u51c6\u3002<\/p>\n<p>\u5982\u679c\u4f60\u7684\u5e94\u7528\u9700\u8981\u8fde\u63a5\u5f88\u591a\u5916\u90e8\u4fe1\u53f7\uff0c\u5c31\u9700\u8981\u9009\u62e9I\/O\u8d44\u6e90\u4e30\u5bcc\u7684\u5668\u4ef6\u3002<\/p>\n<p>\u540c\u65f6\u8981\u6ce8\u610fI\/O\u5f15\u811a\u652f\u6301\u7684\u7535\u5e73\u6807\u51c6\u662f\u5426\u6ee1\u8db3\u4f60\u7684\u9700\u6c42\uff0c\u6bd4\u5982\u662f\u5426\u652f\u63013.3V\u30012.5V\u62161.8V\u7b49\u3002<\/p>\n<p>\u7b2c\u4e09\u662f\u901f\u5ea6\u6027\u80fd\uff0c\u4e3b\u8981\u770b\u6700\u9ad8\u5de5\u4f5c\u9891\u7387\u548c\u5f15\u811a\u5230\u5f15\u811a\u7684\u5ef6\u8fdf\u3002<\/p>\n<p>\u5bf9\u4e8e\u4e00\u4e9b\u9ad8\u901f\u5e94\u7528\uff0c\u6bd4\u5982\u9ad8\u901f\u6570\u636e\u91c7\u96c6\u6216\u901a\u4fe1\u63a5\u53e3\uff0c\u9700\u8981\u9009\u62e9\u901f\u5ea6\u7b49\u7ea7\u8f83\u9ad8\u7684\u5668\u4ef6\u3002<\/p>\n<p>\u7b2c\u56db\u662f\u5c01\u88c5\u5f62\u5f0f\uff0c\u5e38\u89c1\u7684\u6709PLCC\u3001TQFP\u3001BGA\u7b49\u3002<\/p>\n<p>\u5bf9\u4e8e\u624b\u5de5\u710a\u63a5\u6216\u5c0f\u6279\u91cf\u751f\u4ea7\uff0cPLCC\u6216TQFP\u5c01\u88c5\u6bd4\u8f83\u5408\u9002\u3002<\/p>\n<p>\u5bf9\u4e8e\u5927\u6279\u91cf\u751f\u4ea7\uff0cBGA\u5c01\u88c5\u867d\u7136\u710a\u63a5\u96be\u5ea6\u5927\u4e00\u4e9b\uff0c\u4f46\u53ef\u4ee5\u63d0\u4f9b\u66f4\u591a\u7684\u5f15\u811a\u548c\u66f4\u597d\u7684\u7535\u6c14\u6027\u80fd\u3002<\/p>\n<p>\u6700\u540e\u662f\u5f00\u53d1\u5de5\u5177\u7684\u652f\u6301\u548c\u5668\u4ef6\u7684\u4f9b\u8d27\u60c5\u51b5\u3002<\/p>\n<p>\u4e3b\u6d41\u7684CPLD\u5382\u5546\u6709Xilinx\uff08\u73b0\u5728\u662fAMD\uff09\u3001Intel\uff08\u539fAltera\uff09\u3001Lattice\u7b49\uff0c\u5b83\u4eec\u90fd\u63d0\u4f9b\u514d\u8d39\u7684\u5f00\u53d1\u5de5\u5177\u3002<\/p>\n<p>\u5728\u9009\u578b\u65f6\u8981\u8003\u8651\u5f00\u53d1\u5de5\u5177\u662f\u5426\u597d\u7528\uff0c\u4ee5\u53ca\u5668\u4ef6\u7684\u4f9b\u8d27\u662f\u5426\u7a33\u5b9a\u3002<\/p>\n<h3>5.2 \u8bbe\u8ba1\u4e2d\u7684\u6ce8\u610f\u4e8b\u9879<\/h3>\n<p>\u5728\u4f7f\u7528CPLD\u8fdb\u884c\u8bbe\u8ba1\u65f6\uff0c\u6709\u4e00\u4e9b\u9700\u8981\u6ce8\u610f\u7684\u5730\u65b9\u3002<\/p>\n<p>\u9996\u5148\u662f\u65f6\u949f\u8bbe\u8ba1\uff0c\u5c3d\u91cf\u4f7f\u7528\u5168\u5c40\u65f6\u949f\u7f51\u7edc\uff0c\u907f\u514d\u4f7f\u7528\u95e8\u63a7\u65f6\u949f\u3002<\/p>\n<p>\u5982\u679c\u5fc5\u987b\u4f7f\u7528\u591a\u4e2a\u65f6\u949f\u57df\uff0c\u8981\u6ce8\u610f\u8de8\u65f6\u949f\u57df\u7684\u4fe1\u53f7\u540c\u6b65\u95ee\u9898\uff0c\u53ef\u4ee5\u4f7f\u7528\u53cc\u89e6\u53d1\u5668\u540c\u6b65\u6216FIFO\u7b49\u65b9\u6cd5\u3002<\/p>\n<p>\u5176\u6b21\u662f\u590d\u4f4d\u8bbe\u8ba1\uff0c\u5efa\u8bae\u4f7f\u7528\u5f02\u6b65\u590d\u4f4d\u3001\u540c\u6b65\u91ca\u653e\u7684\u65b9\u5f0f\u3002<\/p>\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u590d\u4f4d\u4fe1\u53f7\u7684\u6709\u6548\u662f\u5f02\u6b65\u7684\uff0c\u4f46\u91ca\u653e\u65f6\u8981\u4e0e\u65f6\u949f\u540c\u6b65\uff0c\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u590d\u4f4d\u91ca\u653e\u65f6\u7684\u4e9a\u7a33\u6001\u95ee\u9898\u3002<\/p>\n<p>\u7b2c\u4e09\u662fI\/O\u7ea6\u675f\uff0c\u8981\u5728\u8bbe\u8ba1\u4e2d\u660e\u786e\u6307\u5b9a\u6bcf\u4e2a\u4fe1\u53f7\u4f7f\u7528\u54ea\u4e2a\u5f15\u811a\uff0c\u4ee5\u53ca\u5f15\u811a\u7684\u7535\u6c14\u7279\u6027\uff08\u6bd4\u5982\u9a71\u52a8\u5f3a\u5ea6\u3001\u4e0a\u4e0b\u62c9\u7535\u963b\u7b49\uff09\u3002<\/p>\n<p>\u8fd9\u4e9b\u7ea6\u675f\u901a\u5e38\u5199\u5728\u4e00\u4e2a\u5355\u72ec\u7684\u7ea6\u675f\u6587\u4ef6\u4e2d\u3002<\/p>\n<p>\u7b2c\u56db\u662f\u65f6\u5e8f\u7ea6\u675f\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u5bf9\u65f6\u5e8f\u8981\u6c42\u4e25\u683c\u7684\u8bbe\u8ba1\uff0c\u9700\u8981\u6dfb\u52a0\u65f6\u5e8f\u7ea6\u675f\uff0c\u544a\u8bc9\u7efc\u5408\u548c\u9002\u914d\u5de5\u5177\u4f60\u7684\u65f6\u5e8f\u8981\u6c42\u3002<\/p>\n<p>\u6bd4\u5982\u53ef\u4ee5\u7ea6\u675f\u65f6\u949f\u9891\u7387\u3001\u8f93\u5165\u8f93\u51fa\u5ef6\u8fdf\u3001\u8def\u5f84\u5ef6\u8fdf\u7b49\u3002<\/p>\n<p>\u6700\u540e\u662f\u4ee3\u7801\u98ce\u683c\uff0c\u5efa\u8bae\u4f7f\u7528\u540c\u6b65\u8bbe\u8ba1\u98ce\u683c\uff0c\u907f\u514d\u4f7f\u7528\u8fc7\u591a\u7684\u7ec4\u5408\u903b\u8f91\u3002<\/p>\n<p>\u5728Verilog\u4e2d\uff0c\u5c3d\u91cf\u4f7f\u7528\u963b\u585e\u8d4b\u503c\uff08=\uff09\u6765\u63cf\u8ff0\u7ec4\u5408\u903b\u8f91\uff0c\u4f7f\u7528\u975e\u963b\u585e\u8d4b\u503c\uff08&lt;=\uff09\u6765\u63cf\u8ff0\u65f6\u5e8f\u903b\u8f91\u3002<\/p>\n<p>\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u5f88\u591a\u4eff\u771f\u548c\u7efc\u5408\u7684\u95ee\u9898\u3002<\/p>\n<h3>5.3 \u4e0e\u5355\u7247\u673a\u7684\u914d\u5408\u4f7f\u7528<\/h3>\n<p>\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0cCPLD\u901a\u5e38\u4e0d\u662f\u5355\u72ec\u4f7f\u7528\u7684\uff0c\u800c\u662f\u4e0e\u5355\u7247\u673a\u914d\u5408\u4f7f\u7528\u3002<\/p>\n<p>\u8fd9\u79cd\u7ec4\u5408\u53ef\u4ee5\u53d1\u6325\u5404\u81ea\u7684\u4f18\u52bf\uff1a\u5355\u7247\u673a\u8d1f\u8d23\u590d\u6742\u7684\u7b97\u6cd5\u548c\u63a7\u5236\u903b\u8f91\uff0cCPLD\u8d1f\u8d23\u9ad8\u901f\u7684\u6570\u636e\u5904\u7406\u548c\u63a5\u53e3\u8f6c\u6362\u3002<\/p>\n<p>\u5728\u6211\u7684\u9879\u76ee\u7ecf\u9a8c\u4e2d\uff0c\u901a\u5e38\u4f1a\u8ba9STM32\u4f5c\u4e3a\u4e3b\u63a7\uff0c\u8d1f\u8d23\u6574\u4f53\u7684\u63a7\u5236\u6d41\u7a0b\u3001\u4eba\u673a\u4ea4\u4e92\u3001\u901a\u4fe1\u7b49\u529f\u80fd\u3002<\/p>\n<p>\u800cCPLD\u4f5c\u4e3a\u534f\u5904\u7406\u5668\uff0c\u8d1f\u8d23\u4e00\u4e9b\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\u7684\u4efb\u52a1\uff0c\u6bd4\u5982\u9ad8\u901f\u6570\u636e\u91c7\u96c6\u3001\u7cbe\u786e\u7684\u65f6\u5e8f\u63a7\u5236\u3001\u590d\u6742\u7684\u63a5\u53e3\u8f6c\u6362\u7b49\u3002<\/p>\n<p>STM32\u4e0eCPLD\u4e4b\u95f4\u7684\u901a\u4fe1\u53ef\u4ee5\u91c7\u7528\u591a\u79cd\u65b9\u5f0f\u3002<\/p>\n<p>\u6700\u7b80\u5355\u7684\u662f\u5e76\u884c\u63a5\u53e3\uff0c\u4f7f\u7528STM32\u7684FSMC\u6216FMC\u5916\u8bbe\uff0c\u53ef\u4ee5\u50cf\u8bbf\u95ee\u5916\u90e8SRAM\u4e00\u6837\u8bbf\u95eeCPLD\u5185\u90e8\u7684\u5bc4\u5b58\u5668\u3002<\/p>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u901f\u5ea6\u5feb\uff0c\u63a5\u53e3\u7b80\u5355\uff0c\u662f\u6211\u6700\u5e38\u7528\u7684\u65b9\u5f0f\u3002<\/p>\n<p>\u4e5f\u53ef\u4ee5\u4f7f\u7528\u4e32\u884c\u63a5\u53e3\uff0c\u6bd4\u5982SPI\u6216I2C\u3002\u8fd9\u79cd\u65b9\u5f0f\u5360\u7528\u7684\u5f15\u811a\u5c11\uff0c\u4f46\u901f\u5ea6\u76f8\u5bf9\u8f83\u6162\u3002<\/p>\n<p>\u5bf9\u4e8e\u4e00\u4e9b\u63a7\u5236\u4fe1\u53f7\u6216\u4f4e\u901f\u6570\u636e\uff0c\u4f7f\u7528\u4e32\u884c\u63a5\u53e3\u662f\u6bd4\u8f83\u5408\u9002\u7684\u3002<\/p>\n<p>\u5728\u8f6f\u4ef6\u8bbe\u8ba1\u4e0a\uff0c\u53ef\u4ee5\u628aCPLD\u770b\u4f5c\u662f\u4e00\u4e2a\u5916\u8bbe\uff0c\u4e3a\u5b83\u7f16\u5199\u76f8\u5e94\u7684\u9a71\u52a8\u7a0b\u5e8f\u3002<\/p>\n<p>\u6bd4\u5982\u5b9a\u4e49\u4e00\u4e9b\u5bc4\u5b58\u5668\u5730\u5740\uff0c\u7136\u540e\u901a\u8fc7\u8bfb\u5199\u8fd9\u4e9b\u5bc4\u5b58\u5668\u6765\u63a7\u5236CPLD\u6216\u8bfb\u53d6CPLD\u7684\u72b6\u6001\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"c\">\/\/ CPLD\u5bc4\u5b58\u5668\u5730\u5740\u5b9a\u4e49\uff08\u5047\u8bbe\u4f7f\u7528FSMC Bank1 Sector1\uff09\n#define CPLD_BASE_ADDR    0x60000000\n#define CPLD_CTRL_REG     (*(volatile uint16_t *)(CPLD_BASE_ADDR + 0x00))\n#define CPLD_STATUS_REG   (*(volatile uint16_t *)(CPLD_BASE_ADDR + 0x02))\n#define CPLD_DATA_REG     (*(volatile uint16_t *)(CPLD_BASE_ADDR + 0x04))\n\n\/\/ \u63a7\u5236\u5bc4\u5b58\u5668\u4f4d\u5b9a\u4e49\n#define CPLD_CTRL_ENABLE  (1 &lt;&lt; 0)\n#define CPLD_CTRL_RESET   (1 &lt;&lt; 1)\n#define CPLD_CTRL_START   (1 &lt;&lt; 2)\n\n\/\/ \u72b6\u6001\u5bc4\u5b58\u5668\u4f4d\u5b9a\u4e49\n#define CPLD_STATUS_READY (1 &lt;&lt; 0)\n#define CPLD_STATUS_BUSY  (1 &lt;&lt; 1)\n#define CPLD_STATUS_ERROR (1 &lt;&lt; 2)\n\n\/\/ CPLD\u521d\u59cb\u5316\u51fd\u6570\nvoid CPLD_Init(void)\n{\n    \/\/ \u914d\u7f6eFSMC\u7528\u4e8e\u8bbf\u95eeCPLD\n    \/\/ ... FSMC\u914d\u7f6e\u4ee3\u7801 ...\n    \n    \/\/ \u590d\u4f4dCPLD\n    CPLD_CTRL_REG = CPLD_CTRL_RESET;\n    HAL_Delay(10);\n    CPLD_CTRL_REG = 0;\n    \n    \/\/ \u4f7f\u80fdCPLD\n    CPLD_CTRL_REG = CPLD_CTRL_ENABLE;\n}\n\n\/\/ \u7b49\u5f85CPLD\u5c31\u7eea\nHAL_StatusTypeDef CPLD_WaitReady(uint32_t timeout)\n{\n    uint32_t tickstart = HAL_GetTick();\n    \n    while (!(CPLD_STATUS_REG &amp; CPLD_STATUS_READY)) {\n        if ((HAL_GetTick() - tickstart) &gt; timeout) {\n            return HAL_TIMEOUT;\n        }\n    }\n    \n    return HAL_OK;\n}\n\n\/\/ \u5411CPLD\u5199\u5165\u6570\u636e\nHAL_StatusTypeDef CPLD_WriteData(uint16_t data)\n{\n    \/\/ \u7b49\u5f85CPLD\u5c31\u7eea\n    if (CPLD_WaitReady(100) != HAL_OK) {\n        return HAL_TIMEOUT;\n    }\n    \n    \/\/ \u5199\u5165\u6570\u636e\n    CPLD_DATA_REG = data;\n    \n    \/\/ \u542f\u52a8\u5904\u7406\n    CPLD_CTRL_REG |= CPLD_CTRL_START;\n    \n    return HAL_OK;\n}\n\n\/\/ \u4eceCPLD\u8bfb\u53d6\u6570\u636e\nHAL_StatusTypeDef CPLD_ReadData(uint16_t *data)\n{\n    \/\/ \u7b49\u5f85CPLD\u5c31\u7eea\n    if (CPLD_WaitReady(100) != HAL_OK) {\n        return HAL_TIMEOUT;\n    }\n    \n    \/\/ \u8bfb\u53d6\u6570\u636e\n    *data = CPLD_DATA_REG;\n    \n    return HAL_OK;\n}<\/code><\/pre>\n<p>\u8fd9\u6837\u7684\u9a71\u52a8\u7a0b\u5e8f\u53ef\u4ee5\u5f88\u597d\u5730\u5c01\u88c5CPLD\u7684\u5e95\u5c42\u64cd\u4f5c\uff0c\u4f7f\u5f97\u4e0a\u5c42\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u65b9\u4fbf\u5730\u4f7f\u7528CPLD\u7684\u529f\u80fd\uff0c\u800c\u4e0d\u9700\u8981\u5173\u5fc3\u5177\u4f53\u7684\u786c\u4ef6\u7ec6\u8282\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>CPLD\u4f5c\u4e3a\u4e00\u79cd\u7075\u6d3b\u7684\u53ef\u7f16\u7a0b\u903b\u8f91\u5668\u4ef6\uff0c\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u8bbe\u8ba1\u4e2d\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002<\/p>\n<p>\u5b83\u53ef\u4ee5\u5b9e\u73b0\u63a5\u53e3\u8f6c\u6362\u3001\u903b\u8f91\u7c98\u5408\u3001\u4fe1\u53f7\u5904\u7406\u7b49\u591a\u79cd\u529f\u80fd\uff0c\u662f\u5355\u7247\u673a\u7684\u7406\u60f3\u4f19\u4f34\u3002<\/p>\n<p>\u867d\u7136CPLD\u7684\u5f00\u53d1\u9700\u8981\u5b66\u4e60\u786c\u4ef6\u63cf\u8ff0\u8bed\u8a00\u548c\u6570\u5b57\u903b\u8f91\u8bbe\u8ba1\uff0c\u4f46\u4e00\u65e6\u638c\u63e1\u4e86\u8fd9\u4e9b\u6280\u80fd\uff0c\u5c31\u80fd\u591f\u5728\u9879\u76ee\u4e2d\u53d1\u6325\u5f88\u5927\u7684\u4f5c\u7528\uff0c\u89e3\u51b3\u5f88\u591a\u7528\u7eaf\u8f6f\u4ef6\u96be\u4ee5\u89e3\u51b3\u7684\u95ee\u9898\u3002<\/p>\n<p>\u5bf9\u4e8e\u5d4c\u5165\u5f0f\u5de5\u7a0b\u5e08\u6765\u8bf4\uff0c\u638c\u63e1CPLD\u7684\u4f7f\u7528\u53ef\u4ee5\u5927\u5927\u6269\u5c55\u81ea\u5df1\u7684\u6280\u80fd\u8303\u56f4\uff0c\u5728\u9762\u5bf9\u590d\u6742\u7684\u7cfb\u7edf\u8bbe\u8ba1\u65f6\u6709\u66f4\u591a\u7684\u9009\u62e9\u3002<\/p>\n<p>\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u591f\u5e2e\u52a9\u5927\u5bb6\u5bf9CPLD\u6709\u4e00\u4e2a\u5168\u9762\u7684\u4e86\u89e3\uff0c\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u80fd\u591f\u7075\u6d3b\u8fd0\u7528\u8fd9\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\u3002<\/p>\n<p><strong>\u66f4\u591a\u7f16\u7a0b\u5b66\u4e60\u8d44\u6e90<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=PR4LuMp4C0sZ7nRIsfyc%2Bg%3D%3D.gJ62v9C2scJq%2FRApv32qXb9dcQQB%2BAlvmfYTEdawbGB6En2M7pSJMXqYJLkUc1LtnBAVpq5kf%2FoJ1GmSMkpDPA%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">C\u8bed\u8a00\u96f6\u57fa\u7840\u5165\u95e8\u7535\u5b50\u4e66-2026\u6700\u65b0\u7248<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=mazpM1ANjLgHwGX1hEdciA%3D%3D.N2AR4SLV7%2BxNS%2B%2B1V9I5br%2Fea4QgI8pnuyDBrsM4zqPelo0WJCWAihfSNrgadZhrinqsOhjgyVF1sDxQOYgidw%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">STM32\u96f6\u57fa\u7840\u5165\u95e8\u7535\u5b50\u4e66-2026\u6700\u65b0\u7248<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=7WT31sEH4aVx0Q2gKyZc2A%3D%3D.D%2BoSJGShFA4PuhbqDTur8PRn4i6JjW%2BkzaCSRM9szMVGJIB3rr20Z3dlUhOd1dyjtYOPkQ8KUiK8w1qzKzGdJtlgjLNPzejzxDFpW7okh5w%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">FreeRTOS\u96f6\u57fa\u7840\u5165\u95e8\u7535\u5b50\u4e66-2026\u6700\u65b0\u7248<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=R%2FCgxtw7MZAZRKwhgj4s6A%3D%3D.a37X%2FpYZ1fVD68p3Md4Urgf2cMnq0RwQoGadV88J2e8wpFr7jKsxyf5GyMMmkM4ed4r9%2BStDujoE1XTHaWef9A%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">C++ \u96f6\u57fa\u7840\u5165\u95e8\u7535\u5b50\u4e66-2026\u6700\u65b0\u7248<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=qzq28pIZnj1b5VvkF0lzVw%3D%3D.JlhJrFz2JAU1slhQleqMwVBYRxYU8AJmNWJeEijU7Hst%2BPJ6Va%2FSBKyvsiL3RRxanWvNJKO%2F9Xq2bGe7MTBkOw%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">51\u5355\u7247\u673a\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=oXzeMhpTl%2BirZwKxaMyzKQ%3D%3D.lRmwg8E0lv%2BuzFKmaGjWfdavrj2u%2BBbuG3utb50tqLs3OsYB7xhcUTkcJKZYdV1TMabObC%2BMcwh8Aq1PJFmquA%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">AD\u753b\u677f\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=MltM9P19skcegnImjbwJ8w%3D%3D.%2FdKQAQcQPwiyg5Um83i7D5mYHMoF7p1HppswE40Xdb1Ewdyb5y6DQFweH67ejussXjvwivnfH1TC9GR5PPpB0A%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">C\u8bed\u8a00\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=mAWk3dVOYCdoklV%2B6NUHBA%3D%3D.NPhvOQJTHjqp5A12t%2BEuCmwT3mCIm7K5aY340YtQceLzRLTEvL%2B3XECIxauI5lH9iGan94sc5s2IWUOLcw8SbQ%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">C++\u8bed\u8a00\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=2SgdFhf8UzLhnEGusAF8qA%3D%3D.eaMaBDc6ZW00BfRDuRNoVbstuzdX9MGWdLeOzqKUcYDV3sxgyYqQ%2FfaqvSnROwH7FyZIvj36B3pntjE0Eg0Nvr8zuWsuBMeRukrszxlT0Do%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">ESP32\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=jfpQ5pxA4SQCQrlyPLebRw%3D%3D.bD7k855Pv7muwlmoVFtzIAjsQsfuwARLlBfBof13jAc6SSfNLBeCnyq34Zh489SiA5yqN769crvLdaJNqdJopoAvmkUnbL7FhcLsS%2BNuwu0%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">FreeRTOS\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=YZmu2lfOK%2FQ25vg07VPILg%3D%3D.e2zNqOW6r82zxePqR5hoF5DWBEP4a2Ny9w9mLpUWf2Kuwv05yPzWb%2FMW33dqUIXPnLmktS6mpR%2B3TXg4N9GIXoSbd51Ha%2FH5LSWj8AkoP%2B4%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Linux\u5e94\u7528\u5f00\u53d1\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=I2uISfxR%2BvKJGDVYfp1jJw%3D%3D.6zs253p7vY6yrvzxGfVFt%2FmFWu5dfqyMryT4tdsC9ZmcMfuwp20IvMfZmQqh78r7omVlmrjEinBaOUrsLTVbsB%2FNkT2eLmBQwFhcKeewVL8%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Linux\u5e95\u5c42\u5f00\u53d1\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=fJHvBX1%2FdJsx8u9n10pMzg%3D%3D.0JtTyKKp32Chln6V6lkb7K8uAWGgxMOXXrXMTWX9XnYCabrs05Jf0NmHemZDYKUxgVpbUt5d6JURwW5up6Cm7g%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">LVGL\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=1CNYuszIINz6oR6XT4keJg%3D%3D.lpXbc6Vl4bVsLf%2Beim4nzdZFYg1At4I%2FnJQsjVOddi4vpkJLECvRFVMra1j6qrQ0scosnYpeCW1jJL44%2FHhg1A%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">QT\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<li><a href=\"https:\/\/link.segmentfault.com\/?enc=CC4EH4LV%2Fj737uTfT9LAbA%3D%3D.L0qabpJ5kwRNT4onEctigj6cvS%2B0o9dWrmJF3YttdrwvaFLH1iWxKlg5VlHG%2FGg6yV4dca2HTu3vbYc8a3bo0Q9DGzCTniwT4LBObwQFP88%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">STM32\u96f6\u57fa\u7840\u5165\u95e8\u5b66\u4e60\u8def\u7ebf<\/a><\/li>\n<\/ul>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000047607124\">https:\/\/segmentfault.com\/a\/1190000047607124<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5927\u5bb6\u597d\uff0c\u6211\u662f\u826f\u8bb8 \u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u8fd9\u6837\u7684\u573a\u666f\uff1a\u9700\u8981\u5b9e\u73b0\u4e00\u4e9b\u590d\u6742\u7684\u903b\u8f91\u63a7\u5236\uff0c\u4f46\u7528\u5355\u7247\u673a\u5904\u7406\u53c8\u663e [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10021246","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021246","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10021246"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021246\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10021246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10021246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10021246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}