{"id":76701,"date":"2026-02-23T06:34:16","date_gmt":"2026-02-22T22:34:16","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/76701.html"},"modified":"2026-02-23T06:34:16","modified_gmt":"2026-02-22T22:34:16","slug":"%e8%b7%a8%e8%b6%8a%e6%97%b6%e9%92%9f%e9%b8%bf%e6%b2%9f%ef%bc%9a%e5%bc%82%e6%ad%a5fifo%e5%9c%a8fpga%e8%ae%be%e8%ae%a1%e4%b8%ad%e7%9a%84%e5%ae%9e%e6%88%98%e9%81%bf%e5%9d%91%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/76701.html","title":{"rendered":"\u8de8\u8d8a\u65f6\u949f\u9e3f\u6c9f\uff1a\u5f02\u6b65FIFO\u5728FPGA\u8bbe\u8ba1\u4e2d\u7684\u5b9e\u6218\u907f\u5751\u6307\u5357"},"content":{"rendered":"<h2>\u8de8\u8d8a\u65f6\u949f\u9e3f\u6c9f&#xff1a;\u5f02\u6b65FIFO\u5728FPGA\u8bbe\u8ba1\u4e2d\u7684\u5b9e\u6218\u907f\u5751\u6307\u5357<\/h2>\n<p>\u5728\u73b0\u4ee3\u9ad8\u901f\u6570\u636e\u91c7\u96c6\u7cfb\u7edf\u4e2d&#xff0c;FPGA\u5f00\u53d1\u8005\u7ecf\u5e38\u9762\u4e34\u4f20\u611f\u5668\u4f4e\u9891\u65f6\u949f\u4e0e\u5904\u7406\u5668\u9ad8\u9891\u65f6\u949f\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u6311\u6218\u3002\u5f02\u6b65FIFO\u4f5c\u4e3a\u8de8\u65f6\u949f\u57df\u901a\u4fe1\u7684\u6838\u5fc3\u7ec4\u4ef6&#xff0c;\u5176\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u76f4\u63a5\u51b3\u5b9a\u4e86\u6574\u4e2a\u7cfb\u7edf\u7684\u6027\u80fd\u8868\u73b0\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u5f02\u6b65FIFO\u5728\u5b9e\u9645\u5de5\u7a0b\u4e2d\u7684\u5e94\u7528\u6280\u5de7&#xff0c;\u7279\u522b\u805a\u7126\u4e8e\u90a3\u4e9b\u5bb9\u6613\u88ab\u5ffd\u89c6\u5374\u81f3\u5173\u91cd\u8981\u7684\u8bbe\u8ba1\u7ec6\u8282\u3002<\/p>\n<h3>1. \u5f02\u6b65FIFO\u67b6\u6784\u6df1\u5ea6\u89e3\u6790<\/h3>\n<p>\u5f02\u6b65FIFO\u7684\u672c\u8d28\u662f\u4e00\u4e2a\u53cc\u7aef\u53e3\u5b58\u50a8\u5668&#xff0c;\u5176\u8bfb\u5199\u64cd\u4f5c\u5206\u522b\u7531\u4e24\u4e2a\u72ec\u7acb\u7684\u65f6\u949f\u57df\u63a7\u5236\u3002\u8fd9\u79cd\u67b6\u6784\u867d\u7136\u89e3\u51b3\u4e86\u8de8\u65f6\u949f\u57df\u6570\u636e\u4f20\u8f93\u7684\u57fa\u672c\u9700\u6c42&#xff0c;\u4f46\u4e5f\u5f15\u5165\u4e86\u6f5c\u5728\u7684\u65f6\u5e8f\u98ce\u9669\u3002\u5728\u5b9e\u9645\u8bbe\u8ba1\u4e2d&#xff0c;\u6211\u4eec\u9700\u8981\u7279\u522b\u5173\u6ce8\u6307\u9488\u540c\u6b65\u673a\u5236\u548c\u72b6\u6001\u6807\u5fd7\u751f\u6210\u7535\u8def\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n<p>\u8bfb\u5199\u6307\u9488\u7684\u540c\u6b65\u901a\u5e38\u91c7\u7528\u683c\u96f7\u7801\u7f16\u7801\u65b9\u5f0f&#xff0c;\u8fd9\u79cd\u7f16\u7801\u65b9\u5f0f\u7684\u7279\u70b9\u662f\u76f8\u90bb\u6570\u503c\u4e4b\u95f4\u53ea\u6709\u4e00\u4f4d\u53d1\u751f\u53d8\u5316&#xff0c;\u80fd\u6709\u6548\u964d\u4f4e\u4e9a\u7a33\u6001\u4f20\u64ad\u7684\u6982\u7387\u3002\u4f46\u5373\u4f7f\u4f7f\u7528\u683c\u96f7\u7801&#xff0c;\u4ecd\u7136\u9700\u8981\u5728\u76ee\u6807\u65f6\u949f\u57df\u4e2d\u8fdb\u884c\u4e24\u7ea7\u5bc4\u5b58\u5668\u540c\u6b65&#xff0c;\u8fd9\u662f\u786e\u4fdd\u4fe1\u53f7\u7a33\u5b9a\u6027\u7684\u57fa\u672c\u8981\u6c42\u3002<\/p>\n<p>\u5173\u952e\u8bbe\u8ba1\u53c2\u6570\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>FIFO\u6df1\u5ea6\u8ba1\u7b97&#xff1a;\u9700\u7efc\u5408\u8003\u8651\u8bfb\u5199\u65f6\u949f\u9891\u7387\u5dee\u3001\u6570\u636e\u7a81\u53d1\u957f\u5ea6\u548c\u5141\u8bb8\u7684\u6700\u5927\u5ef6\u8fdf<\/li>\n<li>\u5b58\u50a8\u4ecb\u8d28\u9009\u62e9&#xff1a;Block RAM\u3001Distributed RAM\u6216Built-in FIFO\u5404\u6709\u9002\u7528\u573a\u666f<\/li>\n<li>\u72b6\u6001\u6807\u5fd7\u8bbe\u7f6e&#xff1a;full\/empty\u9608\u503c\u7684\u5408\u7406\u914d\u7f6e\u76f4\u63a5\u5f71\u54cd\u7cfb\u7edf\u6027\u80fd<\/li>\n<\/ul>\n<p>\u6ce8\u610f&#xff1a;\u683c\u96f7\u7801\u540c\u6b65\u5e76\u4e0d\u80fd\u5b8c\u5168\u6d88\u9664\u4e9a\u7a33\u6001&#xff0c;\u4f46\u80fd\u5c06\u9519\u8bef\u6982\u7387\u964d\u5230\u53ef\u63a5\u53d7\u7684\u6c34\u5e73\u3002\u5728\u5b9e\u9645\u8bbe\u8ba1\u4e2d&#xff0c;\u8fd8\u9700\u8981\u8003\u8651\u540c\u6b65\u94fe\u7684\u957f\u5ea6\u5bf9\u65f6\u5e8f\u7684\u5f71\u54cd\u3002<\/p>\n<h3>2. \u590d\u4f4d\u7b56\u7565\u4e0e\u540c\u6b65\u5316\u5904\u7406<\/h3>\n<p>\u590d\u4f4d\u8bbe\u8ba1\u662f\u5f02\u6b65FIFO\u4e2d\u6700\u5bb9\u6613\u88ab\u5ffd\u89c6\u5374\u53c8\u81f3\u5173\u91cd\u8981\u7684\u73af\u8282\u3002\u8bb8\u591a\u5de5\u7a0b\u95ee\u9898\u90fd\u6e90\u4e8e\u4e0d\u6070\u5f53\u7684\u590d\u4f4d\u5904\u7406\u65b9\u5f0f&#xff0c;\u7279\u522b\u662f\u5f02\u6b65\u590d\u4f4d\u4fe1\u53f7\u7684\u540c\u6b65\u5316\u95ee\u9898\u3002<\/p>\n<p>Xilinx\u7684xpm_fifo_async\u539f\u8bed\u660e\u786e\u8981\u6c42\u590d\u4f4d\u4fe1\u53f7\u5fc5\u987b\u540c\u6b65\u4e8e\u5199\u65f6\u949f\u57df\u3002\u8fd9\u610f\u5473\u7740\u76f4\u63a5\u4f7f\u7528\u5f02\u6b65\u590d\u4f4d\u4fe1\u53f7\u8fde\u63a5\u5230rst\u5f15\u811a\u5c06\u5bfc\u81f4\u4e0d\u53ef\u9884\u77e5\u7684\u884c\u4e3a\u3002\u6b63\u786e\u7684\u505a\u6cd5\u662f\u5bf9\u5f02\u6b65\u590d\u4f4d\u4fe1\u53f7\u8fdb\u884c\u540c\u6b65\u5316\u5904\u7406&#xff1a;<\/p>\n<p>\/\/ \u5f02\u6b65\u590d\u4f4d\u540c\u6b65\u5316\u793a\u4f8b<br \/>\nreg [2:0] rst_sync_ff;<br \/>\nalways &#064;(posedge wr_clk or posedge async_rst) begin<br \/>\n    if (async_rst)<br \/>\n        rst_sync_ff &lt;&#061; 3&#039;b111;<br \/>\n    else<br \/>\n        rst_sync_ff &lt;&#061; {rst_sync_ff[1:0], 1&#039;b0};<br \/>\nend<br \/>\nassign sync_rst &#061; rst_sync_ff[2];<\/p>\n<p>\u8fd9\u79cd\u540c\u6b65\u5316\u5904\u7406\u786e\u4fdd\u4e86\u590d\u4f4d\u4fe1\u53f7\u7684\u91ca\u653e\u4e0e\u5199\u65f6\u949f\u8fb9\u6cbf\u5bf9\u9f50&#xff0c;\u907f\u514d\u4e86\u6f5c\u5728\u7684\u65f6\u5e8f\u51b2\u7a81\u3002\u5728\u5b9e\u9645\u5de5\u7a0b\u4e2d&#xff0c;\u6211\u4eec\u8fd8\u9700\u8981\u8003\u8651\u590d\u4f4d\u89e3\u9664\u540e\u9700\u8981\u7b49\u5f85\u591a\u5c11\u4e2a\u65f6\u949f\u5468\u671f\u624d\u80fd\u5f00\u59cb\u6b63\u5e38\u7684\u8bfb\u5199\u64cd\u4f5c\u3002<\/p>\n<p>\u590d\u4f4d\u9a8c\u8bc1\u6b65\u9aa4&#xff1a;<\/p>\n<li>\u4f7f\u7528ILA\u6838\u76d1\u63a7\u590d\u4f4d\u4fe1\u53f7\u5728\u8bfb\u5199\u65f6\u949f\u57df\u7684\u540c\u6b65\u60c5\u51b5<\/li>\n<li>\u9a8c\u8bc1\u590d\u4f4d\u671f\u95f4\u6240\u6709\u72b6\u6001\u6807\u5fd7\u7684\u884c\u4e3a\u662f\u5426\u7b26\u5408\u9884\u671f<\/li>\n<li>\u6d4b\u8bd5\u590d\u4f4d\u89e3\u9664\u540eFIFO\u7684\u521d\u59cb\u5316\u72b6\u6001<\/li>\n<h3>3. IP\u6838\u914d\u7f6e\u5173\u952e\u53c2\u6570\u8be6\u89e3<\/h3>\n<p>\u5728\u9009\u62e9\u548c\u914d\u7f6eFIFO IP\u6838\u65f6&#xff0c;\u591a\u4e2a\u5173\u952e\u53c2\u6570\u7684\u8bbe\u7f6e\u76f4\u63a5\u5f71\u54cd\u6700\u7ec8\u6027\u80fd\u3002Vivado\u4e2d\u7684FIFO Generator\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u914d\u7f6e\u9009\u9879&#xff0c;\u4f46\u9700\u8981\u6839\u636e\u5177\u4f53\u5e94\u7528\u573a\u666f\u8fdb\u884c\u5408\u7406\u9009\u62e9\u3002<\/p>\n<p>\u63a5\u53e3\u7c7b\u578b\u9009\u62e9&#xff1a;<\/p>\n<ul>\n<li>Native Interface&#xff1a;\u6700\u57fa\u7840\u7684FIFO\u63a5\u53e3&#xff0c;\u63d0\u4f9b\u76f4\u63a5\u7684\u8bfb\u5199\u63a7\u5236<\/li>\n<li>AXI4-Stream Interface&#xff1a;\u9002\u5408\u6d41\u5f0f\u6570\u636e\u4f20\u8f93&#xff0c;\u652f\u6301\u80cc\u538b\u673a\u5236<\/li>\n<li>AXI Memory Mapped&#xff1a;\u9002\u7528\u4e8e\u5185\u5b58\u6620\u5c04\u8bbf\u95ee\u573a\u666f<\/li>\n<\/ul>\n<p>\u8bfb\u6a21\u5f0f\u914d\u7f6e&#xff1a;<\/p>\n<ul>\n<li>Standard Mode&#xff1a;\u8bfb\u4f7f\u80fd\u6709\u6548\u540e\u4e0b\u4e00\u4e2a\u5468\u671f\u8f93\u51fa\u6570\u636e<\/li>\n<li>First-Word Fall-Through&#xff08;FWFT&#xff09;&#xff1a;\u6570\u636e\u53ef\u7528\u65f6\u7acb\u5373\u8f93\u51fa&#xff0c;\u51cf\u5c11\u5ef6\u8fdf<\/li>\n<\/ul>\n<p>\u4e0b\u8868\u603b\u7ed3\u4e86\u5173\u952e\u914d\u7f6e\u53c2\u6570\u7684\u5f71\u54cd&#xff1a;<\/p>\n<table>\n<tr>\u53c2\u6570\u63a8\u8350\u8bbe\u7f6e\u5f71\u54cd\u5206\u6790<\/tr>\n<tbody>\n<tr>\n<td>FIFO\u6df1\u5ea6<\/td>\n<td>2\u7684N\u6b21\u65b9<\/td>\n<td>\u5f71\u54cd\u5b58\u50a8\u6548\u7387\u548c\u8d44\u6e90\u4f7f\u7528<\/td>\n<\/tr>\n<tr>\n<td>\u51e0\u4e4e\u6ee1\u9608\u503c<\/td>\n<td>\u6df1\u5ea6-2<\/td>\n<td>\u907f\u514d\u5199\u6ea2\u51fa&#xff0c;\u7559\u51fa\u5b89\u5168\u8fb9\u9645<\/td>\n<\/tr>\n<tr>\n<td>\u51e0\u4e4e\u7a7a\u9608\u503c<\/td>\n<td>2<\/td>\n<td>\u786e\u4fdd\u53ca\u65f6\u54cd\u5e94\u8bfb\u8bf7\u6c42<\/td>\n<\/tr>\n<tr>\n<td>ECC\u4f7f\u80fd<\/td>\n<td>\u6839\u636e\u9700\u6c42<\/td>\n<td>\u589e\u52a0\u53ef\u9760\u6027\u4f46\u589e\u52a0\u8d44\u6e90\u5f00\u9500<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5728\u5b9e\u9645\u9879\u76ee\u4e2d&#xff0c;\u6211\u4eec\u8fd8\u9700\u8981\u6ce8\u610f\u8bfb\u5199\u6570\u636e\u5bbd\u5ea6\u7684\u5339\u914d\u95ee\u9898\u3002\u5f53\u8bfb\u5199\u4f4d\u5bbd\u4e0d\u4e00\u81f4\u65f6&#xff0c;FIFO IP\u6838\u4f1a\u81ea\u52a8\u5904\u7406\u4f4d\u5bbd\u8f6c\u6362&#xff0c;\u4f46\u8fd9\u4f1a\u5f15\u5165\u989d\u5916\u7684\u903b\u8f91\u8d44\u6e90\u6d88\u8017\u3002<\/p>\n<h3>4. \u4e9a\u7a33\u6001\u89c4\u907f\u4e0e\u65f6\u5e8f\u7ea6\u675f<\/h3>\n<p>\u8de8\u65f6\u949f\u57df\u8bbe\u8ba1\u65e0\u6cd5\u5b8c\u5168\u907f\u514d\u4e9a\u7a33\u6001&#xff0c;\u4f46\u53ef\u4ee5\u901a\u8fc7\u5408\u7406\u7684\u5de5\u7a0b\u8bbe\u8ba1\u5c06\u98ce\u9669\u964d\u5230\u6700\u4f4e\u3002\u9664\u4e86\u4f7f\u7528\u683c\u96f7\u7801\u548c\u540c\u6b65\u5668\u5916&#xff0c;\u8fd8\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u65b9\u9762&#xff1a;<\/p>\n<p>\u65f6\u5e8f\u7ea6\u675f\u8bbe\u7f6e&#xff1a;<\/p>\n<p># \u5f02\u6b65\u65f6\u949f\u57df\u7ea6\u675f\u793a\u4f8b<br \/>\nset_clock_groups -asynchronous \\\\<br \/>\n    -group [get_clocks wr_clk] \\\\<br \/>\n    -group [get_clocks rd_clk]<\/p>\n<p>\u8fd9\u79cd\u7ea6\u675f\u544a\u8bc9\u65f6\u5e8f\u5206\u6790\u5de5\u5177\u4e0d\u8981\u68c0\u67e5\u8fd9\u4e24\u4e2a\u65f6\u949f\u57df\u4e4b\u95f4\u7684\u8def\u5f84\u65f6\u5e8f&#xff0c;\u907f\u514d\u4ea7\u751f\u4e0d\u5fc5\u8981\u7684\u65f6\u5e8f\u8fdd\u4f8b\u62a5\u544a\u3002\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f&#xff0c;\u8fd9\u5e76\u4e0d\u610f\u5473\u7740\u53ef\u4ee5\u5ffd\u89c6\u5b9e\u9645\u7684\u65f6\u5e8f\u8981\u6c42\u3002<\/p>\n<p>\u4e9a\u7a33\u6001\u9632\u62a4\u63aa\u65bd&#xff1a;<\/p>\n<ul>\n<li>\u4f7f\u7528\u540c\u6b65\u5668\u94fe\u5904\u7406\u6240\u6709\u8de8\u65f6\u949f\u57df\u4fe1\u53f7<\/li>\n<li>\u4e3a\u5f02\u6b65\u4fe1\u53f7\u8bbe\u7f6e\u9002\u5f53\u7684set_false_path\u7ea6\u675f<\/li>\n<li>\u91c7\u7528\u63e1\u624b\u534f\u8bae\u6216\u5f02\u6b65FIFO\u5904\u7406\u5927\u91cf\u6570\u636e\u4f20\u8f93<\/li>\n<\/ul>\n<p>\u5728\u5b9e\u9645\u8c03\u8bd5\u4e2d&#xff0c;ILA\u6838\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u5de5\u5177\u3002\u6211\u4eec\u9700\u8981\u540c\u65f6\u6355\u83b7\u8bfb\u5199\u65f6\u949f\u57df\u7684\u5173\u952e\u4fe1\u53f7&#xff0c;\u5305\u62ec\u6570\u636e\u3001\u4f7f\u80fd\u4fe1\u53f7\u548c\u72b6\u6001\u6807\u5fd7&#xff0c;\u4ee5\u4fbf\u5206\u6790\u8de8\u65f6\u949f\u57df\u4ea4\u4e92\u7684\u5b9e\u9645\u60c5\u51b5\u3002<\/p>\n<h3>5. \u5b9e\u6218\u8c03\u8bd5\u6280\u5de7\u4e0e\u6545\u969c\u6392\u67e5<\/h3>\n<p>\u57fa\u4e8e\u5b9e\u9645\u9879\u76ee\u7ecf\u9a8c&#xff0c;\u6211\u4eec\u603b\u7ed3\u4e86\u4e00\u4e9b\u5e38\u89c1\u7684FIFO\u76f8\u5173\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6848\u3002\u8fd9\u4e9b\u95ee\u9898\u5f80\u5f80\u5728\u4eff\u771f\u9636\u6bb5\u96be\u4ee5\u53d1\u73b0&#xff0c;\u53ea\u6709\u5728\u5b9e\u9645\u786c\u4ef6\u73af\u5883\u4e2d\u624d\u4f1a\u66b4\u9732\u3002<\/p>\n<p>\u5e38\u89c1\u95ee\u98981&#xff1a;\u5199\u4f7f\u80fd\u6709\u6548\u4f46\u6570\u636e\u65e0\u6cd5\u5199\u5165<br \/>\n\u8fd9\u79cd\u60c5\u51b5\u901a\u5e38\u4e0e\u590d\u4f4d\u4fe1\u53f7\u540c\u6b65\u5316\u4e0d\u8db3\u6709\u5173\u3002\u5efa\u8bae\u68c0\u67e5&#xff1a;<\/p>\n<ul>\n<li>\u590d\u4f4d\u4fe1\u53f7\u662f\u5426\u6ee1\u8db3rst\u5f15\u811a\u7684\u7535\u5e73\u8981\u6c42<\/li>\n<li>\u590d\u4f4d\u89e3\u9664\u540e\u662f\u5426\u7b49\u5f85\u4e86\u8db3\u591f\u7684\u65f6\u95f4\u518d\u8fdb\u884c\u64cd\u4f5c<\/li>\n<li>\u5199\u65f6\u949f\u57df\u662f\u5426\u5b58\u5728\u5176\u4ed6\u7ea6\u675f\u95ee\u9898<\/li>\n<\/ul>\n<p>\u5e38\u89c1\u95ee\u98982&#xff1a;\u7a7a\u6ee1\u6807\u5fd7\u5f02\u5e38<br \/>\n\u4f7f\u7528ILA\u540c\u65f6\u6355\u83b7\u8bfb\u5199\u65f6\u949f\u57df\u7684\u4ee5\u4e0b\u4fe1\u53f7&#xff1a;<\/p>\n<p>\/\/ \u76d1\u63a7\u4fe1\u53f7\u5217\u8868<br \/>\nila_inst ila (<br \/>\n    .clk(wr_clk),<br \/>\n    .probe0(wr_en),<br \/>\n    .probe1(din),<br \/>\n    .probe2(full),<br \/>\n    .probe3(wr_data_count)<br \/>\n);<\/p>\n<p>\u540c\u65f6\u9700\u8981\u5728\u8bfb\u65f6\u949f\u57df\u76d1\u63a7\u76f8\u5e94\u7684\u8bfb\u4fe1\u53f7\u3002\u901a\u8fc7\u5bf9\u6bd4\u5206\u6790\u4e24\u4e2a\u65f6\u949f\u57df\u7684\u884c\u4e3a&#xff0c;\u53ef\u4ee5\u5feb\u901f\u5b9a\u4f4d\u95ee\u9898\u6839\u6e90\u3002<\/p>\n<p>\u6027\u80fd\u4f18\u5316\u5efa\u8bae&#xff1a;<\/p>\n<ul>\n<li>\u5728\u6ee1\u8db3\u7cfb\u7edf\u8981\u6c42\u7684\u524d\u63d0\u4e0b&#xff0c;\u5c3d\u91cf\u4f7f\u7528Block RAM\u8d44\u6e90<\/li>\n<li>\u5408\u7406\u8bbe\u7f6e\u51e0\u4e4e\u6ee1\/\u51e0\u4e4e\u7a7a\u9608\u503c&#xff0c;\u907f\u514d\u9891\u7e41\u7684\u72b6\u6001\u5207\u6362<\/li>\n<li>\u8003\u8651\u4f7f\u7528\u72ec\u7acb\u65f6\u949f\u7684\u5206\u5e03\u5f0fRAM\u5b9e\u73b0\u5c0f\u6df1\u5ea6FIFO<\/li>\n<\/ul>\n<h3>6. \u9ad8\u7ea7\u5e94\u7528\u4e0e\u6027\u80fd\u4f18\u5316<\/h3>\n<p>\u5bf9\u4e8e\u9ad8\u6027\u80fd\u5e94\u7528\u573a\u666f&#xff0c;\u5e38\u89c4\u7684FIFO\u914d\u7f6e\u53ef\u80fd\u65e0\u6cd5\u6ee1\u8db3\u8981\u6c42\u3002\u8fd9\u65f6\u9700\u8981\u8003\u8651\u4e00\u4e9b\u9ad8\u7ea7\u4f18\u5316\u6280\u672f\u3002<\/p>\n<p>\u6d41\u6c34\u7ebf\u4f18\u5316&#xff1a;<br \/>\n\u901a\u8fc7\u63d2\u5165\u5bc4\u5b58\u5668\u7ea7\u6765\u6539\u5584\u65f6\u5e8f\u6027\u80fd&#xff0c;\u867d\u7136\u4f1a\u589e\u52a0\u5c11\u91cf\u5ef6\u8fdf&#xff0c;\u4f46\u80fd\u663e\u8457\u63d0\u9ad8\u6700\u5927\u5de5\u4f5c\u9891\u7387\u3002\u7279\u522b\u662f\u5728\u4f7f\u7528FWFT\u6a21\u5f0f\u65f6&#xff0c;\u5408\u7406\u7684\u6d41\u6c34\u7ebf\u8bbe\u8ba1\u53ef\u4ee5\u907f\u514d\u65f6\u5e8f\u8fdd\u4f8b\u3002<\/p>\n<p>\u8d44\u6e90\u4f18\u5316\u7b56\u7565&#xff1a;<br \/>\n\u5f53\u8bbe\u8ba1\u4e2d\u9700\u8981\u591a\u4e2aFIFO\u65f6&#xff0c;\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u53ef\u53c2\u6570\u5316\u7684\u5c01\u88c5\u6a21\u5757\u3002\u4f8b\u5982\u57fa\u4e8expm_fifo_async\u6784\u5efa\u7edf\u4e00\u63a5\u53e3&#xff1a;<\/p>\n<p>module custom_async_fifo #(<br \/>\n    parameter DATA_W &#061; 8,<br \/>\n    parameter DEPTH_W &#061; 8<br \/>\n)(<br \/>\n    input wr_clk,<br \/>\n    input rd_clk,<br \/>\n    \/\/ &#8230; \u5176\u4ed6\u63a5\u53e3\u4fe1\u53f7<br \/>\n);<\/p>\n<p>xpm_fifo_async #(<br \/>\n    .FIFO_WRITE_DEPTH(2**DEPTH_W),<br \/>\n    .READ_DATA_WIDTH(DATA_W),<br \/>\n    .WRITE_DATA_WIDTH(DATA_W)<br \/>\n) fifo_inst (<br \/>\n    \/\/ \u7aef\u53e3\u8fde\u63a5<br \/>\n);<br \/>\nendmodule<\/p>\n<p>\u8fd9\u79cd\u5c01\u88c5\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u91cd\u7528\u6027&#xff0c;\u8fd8\u7b80\u5316\u4e86\u591a\u4e2aFIFO\u5b9e\u4f8b\u7684\u7ba1\u7406\u548c\u9a8c\u8bc1\u5de5\u4f5c\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u9879\u76ee\u4e2d&#xff0c;\u6211\u4eec\u8fd8\u9700\u8981\u5173\u6ce8\u529f\u8017\u4f18\u5316\u3002\u4e0d\u540c\u7684\u5b9e\u73b0\u65b9\u5f0f\u5bf9\u52a8\u6001\u529f\u8017\u7684\u5f71\u54cd\u5f88\u5927&#xff0c;\u7279\u522b\u662f\u5728\u9ad8\u901f\u5e94\u7528\u4e2d\u3002\u4f7f\u7528\u82af\u7247\u5185\u7f6e\u7684FIFO\u786c\u6838\u901a\u5e38\u6bd4\u7528\u903b\u8f91\u8d44\u6e90\u5b9e\u73b0\u7684\u8f6fFIFO\u66f4\u52a0\u8282\u80fd\u3002<\/p>\n<p>\u7ecf\u8fc7\u591a\u4e2a\u9879\u76ee\u7684\u5b9e\u8df5\u9a8c\u8bc1&#xff0c;\u8fd9\u4e9b\u8bbe\u8ba1\u65b9\u6cd5\u548c\u6ce8\u610f\u4e8b\u9879\u80fd\u591f\u663e\u8457\u63d0\u9ad8\u5f02\u6b65FIFO\u7684\u53ef\u9760\u6027\u548c\u7cfb\u7edf\u7a33\u5b9a\u6027\u3002\u6bcf\u4e2a\u9879\u76ee\u90fd\u6709\u5176\u72ec\u7279\u6027&#xff0c;\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u8fd8\u9700\u8981\u6839\u636e\u5177\u4f53\u9700\u6c42\u8fdb\u884c\u8c03\u6574\u548c\u4f18\u5316\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8de8\u8d8a\u65f6\u949f\u9e3f\u6c9f&#xff1a;\u5f02\u6b65FIFO\u5728FPGA\u8bbe\u8ba1\u4e2d\u7684\u5b9e\u6218\u907f\u5751\u6307\u5357<br \/>\n\u5728\u73b0\u4ee3\u9ad8\u901f\u6570\u636e\u91c7\u96c6\u7cfb\u7edf\u4e2d&#xff0c;FPGA\u5f00\u53d1\u8005\u7ecf\u5e38\u9762\u4e34\u4f20\u611f\u5668\u4f4e\u9891\u65f6\u949f\u4e0e\u5904\u7406\u5668\u9ad8\u9891\u65f6\u949f\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u6311\u6218\u3002\u5f02\u6b65FIFO\u4f5c\u4e3a\u8de8\u65f6\u949f\u57df\u901a\u4fe1\u7684\u6838\u5fc3\u7ec4\u4ef6&#xff0c;\u5176\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u76f4\u63a5\u51b3\u5b9a\u4e86\u6574\u4e2a\u7cfb\u7edf\u7684\u6027\u80fd\u8868\u73b0\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u5f02\u6b65FIFO\u5728\u5b9e\u9645\u5de5\u7a0b\u4e2d\u7684\u5e94\u7528\u6280\u5de7&#xff0c;\u7279\u522b\u805a\u7126\u4e8e\u90a3\u4e9b\u5bb9\u6613\u88ab\u5ffd\u89c6\u5374\u81f3\u5173\u91cd\u8981\u7684\u8bbe\u8ba1\u7ec6\u8282\u3002<br \/>\n1. \u5f02\u6b65FIFO\u67b6\u6784\u6df1\u5ea6\u89e3\u6790<br \/>\n\u5f02\u6b65FIFO\u7684\u672c\u8d28\u662f\u4e00\u4e2a\u53cc\u7aef\u53e3\u5b58\u50a8\u5668&#xff0c;<\/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":[8291,8290,8289,1740],"topic":[],"class_list":["post-76701","post","type-post","status-publish","format-standard","hentry","category-server","tag-ip","tag-xilinx","tag-fifo","tag-fpga"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u8de8\u8d8a\u65f6\u949f\u9e3f\u6c9f\uff1a\u5f02\u6b65FIFO\u5728FPGA\u8bbe\u8ba1\u4e2d\u7684\u5b9e\u6218\u907f\u5751\u6307\u5357 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/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:\/\/www.wsisp.com\/helps\/76701.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u8de8\u8d8a\u65f6\u949f\u9e3f\u6c9f\uff1a\u5f02\u6b65FIFO\u5728FPGA\u8bbe\u8ba1\u4e2d\u7684\u5b9e\u6218\u907f\u5751\u6307\u5357 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u8de8\u8d8a\u65f6\u949f\u9e3f\u6c9f&#xff1a;\u5f02\u6b65FIFO\u5728FPGA\u8bbe\u8ba1\u4e2d\u7684\u5b9e\u6218\u907f\u5751\u6307\u5357 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content=\"https:\/\/www.wsisp.com\/helps\/76701.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-22T22:34:16+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/76701.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/76701.html\",\"name\":\"\u8de8\u8d8a\u65f6\u949f\u9e3f\u6c9f\uff1a\u5f02\u6b65FIFO\u5728FPGA\u8bbe\u8ba1\u4e2d\u7684\u5b9e\u6218\u907f\u5751\u6307\u5357 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