{"id":76543,"date":"2026-02-22T18:49:17","date_gmt":"2026-02-22T10:49:17","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/76543.html"},"modified":"2026-02-22T18:49:17","modified_gmt":"2026-02-22T10:49:17","slug":"ch32v307vct6%e5%ae%9a%e6%97%b6%e5%99%a8dacdma%e5%ae%9e%e6%88%98%ef%bc%9a%e9%ab%98%e6%95%88%e6%b3%a2%e5%bd%a2%e7%94%9f%e6%88%90%e4%b8%8e%e8%87%aa%e5%8a%a8%e6%90%ac%e8%bf%90%e6%9c%ba%e5%88%b6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/76543.html","title":{"rendered":"CH32V307VCT6\u5b9a\u65f6\u5668+DAC+DMA\u5b9e\u6218\uff1a\u9ad8\u6548\u6ce2\u5f62\u751f\u6210\u4e0e\u81ea\u52a8\u642c\u8fd0\u673a\u5236\u89e3\u6790"},"content":{"rendered":"<h3>1. \u5b9a\u65f6\u5668&#043;DAC&#043;DMA&#xff1a;\u5d4c\u5165\u5f0f\u6ce2\u5f62\u751f\u6210\u7684\u9ec4\u91d1\u7ec4\u5408<\/h3>\n<p>\u5728\u5b9e\u9645\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d&#xff0c;\u6ce2\u5f62\u751f\u6210\u662f\u4e2a\u975e\u5e38\u5e38\u89c1\u7684\u9700\u6c42\u3002\u65e0\u8bba\u662f\u505a\u4fe1\u53f7\u53d1\u751f\u5668\u3001\u97f3\u9891\u8bbe\u5907\u8fd8\u662f\u7535\u673a\u63a7\u5236&#xff0c;\u90fd\u79bb\u4e0d\u5f00\u7a33\u5b9a\u53ef\u9760\u7684\u6ce2\u5f62\u8f93\u51fa\u3002\u6211\u521a\u5f00\u59cb\u63a5\u89e6\u8fd9\u4e2a\u9886\u57df\u65f6&#xff0c;\u603b\u662f\u7528\u6700\u7b80\u5355\u7684\u5b9a\u65f6\u5668\u4e2d\u65ad\u6765\u66f4\u65b0DAC\u8f93\u51fa\u503c&#xff0c;\u7ed3\u679c\u53d1\u73b0CPU\u5927\u90e8\u5206\u65f6\u95f4\u90fd\u5728\u5904\u7406\u4e2d\u65ad&#xff0c;\u6839\u672c\u5e72\u4e0d\u4e86\u5176\u4ed6\u4e8b\u60c5\u3002<\/p>\n<p>\u540e\u6765\u6211\u53d1\u73b0CH32V307VCT6\u7684\u8fd9\u4e2a\u9ec4\u91d1\u7ec4\u5408\u2014\u2014\u5b9a\u65f6\u5668\u4e3b\u6a21\u5f0f\u89e6\u53d1DAC&#xff0c;\u518d\u914d\u5408DMA\u81ea\u52a8\u642c\u8fd0\u6570\u636e\u3002\u8fd9\u79cd\u65b9\u6848\u771f\u7684\u592a\u9999\u4e86&#xff01;CPU\u53ea\u9700\u8981\u521d\u59cb\u5316\u597d\u5404\u4e2a\u5916\u8bbe&#xff0c;\u7136\u540e\u5c31\u53ef\u4ee5\u53bb\u5904\u7406\u5176\u4ed6\u4efb\u52a1&#xff0c;\u6ce2\u5f62\u8f93\u51fa\u5b8c\u5168\u7531\u786c\u4ef6\u81ea\u52a8\u5b8c\u6210\u3002\u6211\u5b9e\u6d4b\u8fc7&#xff0c;\u7528\u8fd9\u79cd\u65b9\u5f0f\u751f\u6210\u6ce2\u5f62&#xff0c;CPU\u5360\u7528\u7387\u51e0\u4e4e\u4e3a\u96f6&#xff0c;\u800c\u4e14\u8f93\u51fa\u7279\u522b\u7a33\u5b9a\u3002<\/p>\n<p>\u8fd9\u79cd\u65b9\u6848\u7279\u522b\u9002\u5408\u9700\u8981\u9ad8\u7cbe\u5ea6\u6ce2\u5f62\u8f93\u51fa\u7684\u573a\u666f\u3002\u6bd4\u5982\u6211\u4e4b\u524d\u505a\u8fc7\u4e00\u4e2a\u97f3\u9891\u4fe1\u53f7\u53d1\u751f\u5668&#xff0c;\u9700\u8981\u540c\u65f6\u8f93\u51fa\u4e24\u8def\u4e0d\u540c\u7684\u6ce2\u5f62&#xff1a;\u4e00\u8def\u662f\u6b63\u5f26\u6ce2&#xff0c;\u4e00\u8def\u662f\u76f4\u6d41\u7535\u538b\u3002\u7528\u4f20\u7edf\u7684\u4e2d\u65ad\u65b9\u5f0f\u6839\u672c\u505a\u4e0d\u5230\u7a33\u5b9a\u7684\u8f93\u51fa&#xff0c;\u540e\u6765\u6539\u7528TIM&#043;DAC&#043;DMA\u7684\u65b9\u6848&#xff0c;\u95ee\u9898\u8fce\u5203\u800c\u89e3\u3002<\/p>\n<h3>2. \u6df1\u5165\u7406\u89e3CH32V307VCT6\u7684\u5b9a\u65f6\u5668\u7cfb\u7edf<\/h3>\n<h4>2.1 \u5b9a\u65f6\u5668\u7684\u57fa\u672c\u5de5\u4f5c\u539f\u7406<\/h4>\n<p>CH32V307VCT6\u7684\u5b9a\u65f6\u5668\u7cfb\u7edf\u76f8\u5f53\u4e30\u5bcc&#xff0c;\u5305\u542b\u9ad8\u7ea7\u5b9a\u65f6\u5668\u3001\u901a\u7528\u5b9a\u65f6\u5668\u548c\u57fa\u672c\u5b9a\u65f6\u5668\u3002\u6211\u5728\u9879\u76ee\u4e2d\u6700\u5e38\u7528\u7684\u662f\u57fa\u672c\u5b9a\u65f6\u5668TIM6\u548cTIM7&#xff0c;\u56e0\u4e3a\u5b83\u4eec\u7684\u529f\u80fd\u7b80\u5355\u76f4\u63a5&#xff0c;\u6b63\u597d\u9002\u5408\u89e6\u53d1DAC\u8fd9\u79cd\u4efb\u52a1\u3002<\/p>\n<p>\u5b9a\u65f6\u5668\u7684\u6838\u5fc3\u662f\u65f6\u57fa\u5355\u5143&#xff0c;\u7531\u9884\u5206\u9891\u5668\u3001\u8ba1\u6570\u5668\u548c\u81ea\u52a8\u91cd\u88c5\u8f7d\u5bc4\u5b58\u5668\u7ec4\u6210\u3002\u9884\u5206\u9891\u5668\u8d1f\u8d23\u5bf9\u8f93\u5165\u65f6\u949f\u8fdb\u884c\u5206\u9891&#xff0c;\u6bd4\u5982\u7cfb\u7edf\u4e3b\u9891\u662f96MHz&#xff0c;\u901a\u8fc7\u9884\u5206\u9891\u53ef\u4ee5\u964d\u4f4e\u8ba1\u6570\u9891\u7387\u3002\u8ba1\u6570\u5668\u5219\u5bf9\u5206\u9891\u540e\u7684\u65f6\u949f\u8109\u51b2\u8fdb\u884c\u8ba1\u6570&#xff0c;\u5f53\u8ba1\u6570\u503c\u8fbe\u5230\u81ea\u52a8\u91cd\u88c5\u8f7d\u503c\u65f6&#xff0c;\u5c31\u4f1a\u4ea7\u751f\u66f4\u65b0\u4e8b\u4ef6\u6216\u66f4\u65b0\u4e2d\u65ad\u3002<\/p>\n<p>\u8ba1\u7b97\u5b9a\u65f6\u9891\u7387\u6709\u4e2a\u7b80\u5355\u7684\u516c\u5f0f&#xff1a;CK_CNT &#061; 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DAC\u6a21\u5757\u7684\u914d\u7f6e\u4e0e\u4f7f\u7528\u6280\u5de7<\/h3>\n<h4>3.1 DAC\u7684\u57fa\u7840\u914d\u7f6e\u8981\u70b9<\/h4>\n<p>CH32V307VCT6\u7684DAC\u6a21\u5757\u6709\u4e24\u4e2a\u72ec\u7acb\u901a\u9053&#xff0c;\u53ef\u4ee5\u540c\u65f6\u8f93\u51fa\u4e0d\u540c\u7684\u6ce2\u5f62\u3002\u6211\u5728\u914d\u7f6eDAC\u65f6&#xff0c;\u7b2c\u4e00\u4e2a\u8981\u6ce8\u610f\u7684\u5c31\u662fGPIO\u6a21\u5f0f\u5fc5\u987b\u8bbe\u7f6e\u4e3a\u6a21\u62df\u8f93\u5165\u6a21\u5f0f(GPIO_Mode_AIN)&#xff0c;\u8fd9\u4e2a\u7ec6\u8282\u5f88\u5bb9\u6613\u88ab\u5ffd\u7565&#xff0c;\u4f46\u5982\u679c\u8bbe\u9519\u4e86&#xff0c;DAC\u6839\u672c\u4e0d\u4f1a\u6709\u8f93\u51fa\u3002<\/p>\n<p>DAC\u7684\u89e6\u53d1\u65b9\u5f0f\u6709\u591a\u79cd\u9009\u62e9&#xff0c;\u6211\u4eec\u8fd9\u91cc\u9009\u62e9\u5b9a\u65f6\u5668\u89e6\u53d1\u3002\u5728DAC\u521d\u59cb\u5316\u7ed3\u6784\u4f53\u4e2d&#xff0c;\u8bbe\u7f6eDAC_Trigger\u4e3aDAC_Trigger_T7_TRGO&#xff0c;\u8fd9\u6837DAC\u5c31\u4f1a\u7b49\u5f85\u5b9a\u65f6\u5668\u7684\u89e6\u53d1\u4fe1\u53f7&#xff0c;\u800c\u4e0d\u662f\u8f6f\u4ef6\u89e6\u53d1\u3002<\/p>\n<p>\u8fd8\u6709\u4e00\u4e2a\u91cd\u8981\u7684\u8bbe\u7f6e\u662f\u8f93\u51fa\u7f13\u51b2\u5668\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u8f93\u51fa\u7f13\u51b2\u662f\u5f00\u542f\u7684&#xff0c;\u4f46\u8fd9\u4f1a\u964d\u4f4eDAC\u7684\u54cd\u5e94\u901f\u5ea6\u3002\u5bf9\u4e8e\u9700\u8981\u5feb\u901f\u53d8\u5316\u7684\u6ce2\u5f62\u8f93\u51fa&#xff0c;\u6211\u5efa\u8bae\u5173\u95ed\u8f93\u51fa\u7f13\u51b2(DAC_OutputBuffer_Disable)&#xff0c;\u8fd9\u6837\u6ce2\u5f62\u8fb9\u7f18\u4f1a\u66f4\u9661\u5ced\u3002<\/p>\n<h4>3.2 \u53cc\u901a\u9053\u72ec\u7acb\u8f93\u51fa\u7684\u5b9e\u73b0<\/h4>\n<p>CH32V307\u7684DAC\u652f\u6301\u53cc\u901a\u9053\u72ec\u7acb\u8f93\u51fa&#xff0c;\u8fd9\u4e2a\u529f\u80fd\u771f\u7684\u5f88\u5b9e\u7528\u3002\u6211\u53ef\u4ee5\u8ba9\u901a\u90531\u8f93\u51fa\u6b63\u5f26\u6ce2&#xff0c;\u540c\u65f6\u901a\u90532\u8f93\u51fa\u76f4\u6d41\u7535\u538b\u6216\u8005\u53e6\u4e00\u79cd\u6ce2\u5f62\u3002\u5b9e\u73b0\u7684\u5173\u952e\u5728\u4e8e\u6570\u636e\u5bc4\u5b58\u5668\u7684\u914d\u7f6e\u2014\u2014DAC-&gt;RD12BDHR\u8fd9\u4e2a32\u4f4d\u5bc4\u5b58\u5668\u7684\u9ad816\u4f4d\u662f\u901a\u90532\u7684\u6570\u636e&#xff0c;\u4f4e16\u4f4d\u662f\u901a\u90531\u7684\u6570\u636e\u3002<\/p>\n<p>\u5728\u521d\u59cb\u5316\u65f6&#xff0c;\u4e24\u4e2a\u901a\u9053\u7684\u914d\u7f6e\u5927\u90e8\u5206\u662f\u76f8\u540c\u7684&#xff0c;\u90fd\u9700\u8981\u8bbe\u7f6e\u5b9a\u65f6\u5668\u89e6\u53d1\u3001\u5173\u95ed\u6ce2\u5f62\u751f\u6210\u3001\u5173\u95ed\u8f93\u51fa\u7f13\u51b2\u3002\u4f46\u6bcf\u4e2a\u901a\u9053\u90fd\u9700\u8981\u5355\u72ec\u4f7f\u80fd&#xff0c;\u5e76\u4e14\u8981\u5355\u72ec\u8bbe\u7f6e\u521d\u59cb\u8f93\u51fa\u503c\u3002\u6211\u4e00\u822c\u4f1a\u628a\u901a\u90531\u521d\u59cb\u5316\u4e3a0&#xff0c;\u901a\u90532\u4e5f\u521d\u59cb\u5316\u4e3a0&#xff0c;\u907f\u514dDAC\u4e00\u4e0a\u7535\u5c31\u8f93\u51fa\u610f\u5916\u7535\u538b\u3002<\/p>\n<h3>4. DMA\u81ea\u52a8\u642c\u8fd0\u6570\u636e\u7684\u5b9e\u73b0\u539f\u7406<\/h3>\n<h4>4.1 DMA\u7684\u5de5\u4f5c\u539f\u7406\u4e0e\u914d\u7f6e<\/h4>\n<p>DMA&#xff08;\u76f4\u63a5\u5b58\u50a8\u5668\u8bbf\u95ee&#xff09;\u53ef\u4ee5\u8bf4\u662f\u5d4c\u5165\u5f0f\u7cfb\u7edf\u7684&#034;\u7269\u6d41\u4e2d\u5fc3&#034;\u3002\u5b83\u80fd\u5728\u4e0d\u5360\u7528CPU\u7684\u60c5\u51b5\u4e0b&#xff0c;\u5728\u5b58\u50a8\u5668\u548c\u5916\u8bbe\u4e4b\u95f4\u81ea\u52a8\u642c\u8fd0\u6570\u636e\u3002\u5728\u6211\u4eec\u8fd9\u4e2a\u5e94\u7528\u91cc&#xff0c;DMA\u8d1f\u8d23\u628a\u6ce2\u5f62\u6570\u636e\u4ece\u5185\u5b58\u642c\u8fd0\u5230DAC\u7684\u6570\u636e\u5bc4\u5b58\u5668\u3002<\/p>\n<p>\u914d\u7f6eDMA\u65f6\u9700\u8981\u6ce8\u610f\u51e0\u4e2a\u5173\u952e\u70b9&#xff1a;\u9996\u5148\u662f\u4f20\u8f93\u65b9\u5411\u8981\u8bbe\u7f6e\u4e3a\u5185\u5b58\u5230\u5916\u8bbe(DMA_DIR_PeripheralDST)&#xff0c;\u56e0\u4e3a\u6570\u636e\u662f\u4ece\u5185\u5b58\u4e2d\u7684\u6ce2\u5f62\u6570\u7ec4\u642c\u8fd0\u5230DAC\u5bc4\u5b58\u5668\u3002\u5176\u6b21\u662f\u5730\u5740\u8bbe\u7f6e\u2014\u2014\u5916\u8bbe\u5730\u5740\u662f\u56fa\u5b9a\u7684DAC\u6570\u636e\u5bc4\u5b58\u5668\u5730\u5740&#xff0c;\u4e0d\u9700\u8981\u9012\u589e&#xff1b;\u800c\u5185\u5b58\u5730\u5740\u9700\u8981\u9012\u589e&#xff0c;\u4ee5\u4fbf\u904d\u5386\u6574\u4e2a\u6ce2\u5f62\u6570\u7ec4\u3002<\/p>\n<p>DMA\u7684\u4f20\u8f93\u6570\u636e\u5927\u5c0f\u4e5f\u9700\u8981\u6ce8\u610f\u3002DAC\u7684\u6570\u636e\u5bc4\u5b58\u5668\u662f32\u4f4d\u7684&#xff0c;\u4f4e16\u4f4d\u662f\u901a\u90531\u6570\u636e&#xff0c;\u9ad816\u4f4d\u662f\u901a\u90532\u6570\u636e&#xff0c;\u6240\u4ee5\u6211\u4eec\u8981\u8bbe\u7f6e\u6570\u636e\u4f20\u8f93\u5927\u5c0f\u4e3a\u5b57(32\u4f4d)\u3002\u8fd9\u6837\u6bcf\u6b21\u4f20\u8f93\u90fd\u80fd\u540c\u65f6\u66f4\u65b0\u4e24\u4e2a\u901a\u9053\u7684\u8f93\u51fa\u503c\u3002<\/p>\n<h4>4.2 \u5faa\u73af\u6a21\u5f0f\u4e0e\u7f13\u51b2\u533a\u7ba1\u7406<\/h4>\n<p>DMA\u7684\u5faa\u73af\u6a21\u5f0f\u5728\u8fd9\u4e2a\u5e94\u7528\u4e2d\u7279\u522b\u6709\u7528\u3002\u8bbe\u7f6eDMA_Mode_Circular\u540e&#xff0c;DMA\u4f1a\u5728\u4f20\u8f93\u5b8c\u6240\u6709\u6570\u636e\u540e\u81ea\u52a8\u4ece\u5934\u5f00\u59cb&#xff0c;\u5b9e\u73b0\u8fde\u7eed\u7684\u6ce2\u5f62\u8f93\u51fa\u3002\u8fd9\u610f\u5473\u7740\u6211\u4eec\u53ea\u9700\u8981\u63d0\u4f9b\u4e00\u6bb5\u6ce2\u5f62\u6570\u636e&#xff0c;DMA\u5c31\u4f1a\u5faa\u73af\u4e0d\u65ad\u5730\u8f93\u51fa\u8fd9\u4e2a\u6ce2\u5f62\u3002<\/p>\n<p>\u7f13\u51b2\u533a\u5927\u5c0f\u7684\u8bbe\u7f6e\u4e5f\u5f88\u91cd\u8981\u3002\u6211\u4e00\u822c\u4f1a\u6839\u636e\u6ce2\u5f62\u7cbe\u5ea6\u8981\u6c42\u6765\u8bbe\u7f6eWAVE_POINTS\u7684\u503c\u3002\u70b9\u6570\u592a\u5c11\u6ce2\u5f62\u4e0d\u591f\u5e73\u6ed1&#xff0c;\u70b9\u6570\u592a\u591a\u53c8\u5360\u7528\u592a\u591a\u5185\u5b58\u3002\u5bf9\u4e8e\u97f3\u9891\u5e94\u7528&#xff0c;100-200\u4e2a\u70b9\u901a\u5e38\u5c31\u591f\u4e86&#xff1b;\u5bf9\u4e8e\u66f4\u9ad8\u9891\u7387\u7684\u4fe1\u53f7&#xff0c;\u53ef\u80fd\u9700\u8981\u66f4\u591a\u7684\u70b9\u3002<\/p>\n<p>\u6211\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u8e29\u8fc7\u4e00\u4e2a\u5751&#xff1a;DMA\u7f13\u51b2\u533a\u5927\u5c0f\u4e00\u5b9a\u8981\u548c\u4f20\u8f93\u8ba1\u6570\u5668\u7684\u503c\u4e00\u81f4&#xff0c;\u5426\u5219\u4f1a\u51fa\u73b0\u6ce2\u5f62\u9519\u4e71\u3002\u540e\u6765\u6211\u517b\u6210\u4e86\u597d\u4e60\u60ef&#xff0c;\u4e13\u95e8\u5b9a\u4e49\u4e00\u4e2a\u5b8f\u6765\u786e\u4fdd\u4e24\u8005\u4e00\u81f4\u3002<\/p>\n<h3>5. \u5b8c\u6574\u5b9e\u6218&#xff1a;\u6ce2\u5f62\u751f\u6210\u9879\u76ee\u7684\u5b9e\u73b0<\/h3>\n<h4>5.1 \u7cfb\u7edf\u521d\u59cb\u5316\u4e0e\u5916\u8bbe\u914d\u7f6e<\/h4>\n<p>\u5b9e\u73b0\u4e00\u4e2a\u5b8c\u6574\u7684\u6ce2\u5f62\u751f\u6210\u9879\u76ee&#xff0c;\u9700\u8981\u6309\u7167\u6b63\u786e\u7684\u987a\u5e8f\u521d\u59cb\u5316\u5404\u4e2a\u5916\u8bbe\u3002\u6211\u7684\u7ecf\u9a8c\u662f\u5148\u521d\u59cb\u5316GPIO&#xff0c;\u518d\u521d\u59cb\u5316DAC&#xff0c;\u7136\u540e\u662f\u5b9a\u65f6\u5668&#xff0c;\u6700\u540e\u662fDMA\u3002\u8fd9\u4e2a\u987a\u5e8f\u5f88\u91cd\u8981&#xff0c;\u56e0\u4e3a\u540e\u521d\u59cb\u5316\u7684\u5916\u8bbe\u53ef\u80fd\u4f1a\u4f9d\u8d56\u5148\u521d\u59cb\u5316\u7684\u5916\u8bbe\u3002<\/p>\n<p>GPIO\u914d\u7f6e\u76f8\u5bf9\u7b80\u5355&#xff0c;\u4e3b\u8981\u662f\u8bbe\u7f6ePA4\u548cPA5\u4e3a\u6a21\u62df\u8f93\u5165\u6a21\u5f0f\u3002\u4f46\u522b\u5fd8\u4e86\u4f7f\u80fdGPIOA\u7684\u65f6\u949f&#xff0c;\u8fd9\u4e2a\u7ec6\u8282\u5f88\u5bb9\u6613\u9057\u6f0f\u3002\u6211\u5c31\u66fe\u7ecf\u56e0\u4e3a\u5fd8\u4e86\u5f00\u65f6\u949f&#xff0c;\u8c03\u8bd5\u4e86\u534a\u5929\u4e3a\u4ec0\u4e48DAC\u6ca1\u6709\u8f93\u51fa\u3002<\/p>\n<p>DAC\u914d\u7f6e\u65f6\u8981\u6ce8\u610f\u89e6\u53d1\u6e90\u7684\u9009\u62e9\u3002\u6211\u4eec\u4f7f\u7528TIM7\u7684TRGO\u4f5c\u4e3a\u89e6\u53d1\u6e90&#xff0c;\u6240\u4ee5\u8bbe\u7f6eDAC_Trigger\u4e3aDAC_Trigger_T7_TRGO\u3002\u4e24\u4e2a\u901a\u9053\u90fd\u8981\u914d\u7f6e&#xff0c;\u5e76\u4e14\u90fd\u8981\u4f7f\u80fdDMA\u529f\u80fd&#xff0c;\u8fd9\u6837\u624d\u80fd\u5b9e\u73b0\u81ea\u52a8\u6570\u636e\u642c\u8fd0\u3002<\/p>\n<h4>5.2 \u6ce2\u5f62\u6570\u636e\u751f\u6210\u4e0e\u4f18\u5316<\/h4>\n<p>\u6ce2\u5f62\u6570\u636e\u7684\u751f\u6210\u8d28\u91cf\u76f4\u63a5\u51b3\u5b9a\u4e86\u8f93\u51fa\u6ce2\u5f62\u7684\u8d28\u91cf\u3002\u6211\u901a\u5e38\u4f7f\u7528\u67e5\u8868\u6cd5\u6765\u751f\u6210\u6ce2\u5f62\u6570\u636e&#xff0c;\u56e0\u4e3a\u8ba1\u7b97\u6b63\u5f26\u51fd\u6570\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u6bd4\u8f83\u8017\u65f6\u3002\u5728\u4e0a\u7535\u521d\u59cb\u5316\u65f6\u4e00\u6b21\u6027\u751f\u6210\u597d\u6ce2\u5f62\u6570\u636e&#xff0c;\u8fd0\u884c\u65f6\u76f4\u63a5\u4f7f\u7528\u5373\u53ef\u3002<\/p>\n<p>\u5bf9\u4e8e\u6b63\u5f26\u6ce2&#xff0c;\u6211\u5e38\u7528\u7684\u516c\u5f0f\u662f&#xff1a;sin_value &#061; sin(2.0f * PI * i \/ WAVE_POINTS)\u3002\u8fd9\u4e2a\u516c\u5f0f\u4f1a\u751f\u6210\u4e00\u4e2a\u5b8c\u6574\u7684\u6b63\u5f26\u5468\u671f&#xff0c;\u91c7\u6837\u70b9\u6570\u4e3aWAVE_POINTS\u3002\u7136\u540e\u5c06\u6b63\u5f26\u503c\u6620\u5c04\u5230DAC\u7684\u8f93\u51fa\u8303\u56f4\u5185&#xff0c;\u901a\u5e38\u662f0\u52303V\u3002<\/p>\n<p>\u4e3a\u4e86\u63d0\u9ad8\u6ce2\u5f62\u8d28\u91cf&#xff0c;\u6211\u8fd8\u4f1a\u5bf9\u751f\u6210\u7684\u6ce2\u5f62\u6570\u636e\u8fdb\u884c\u5e73\u6ed1\u5904\u7406\u3002\u7b80\u5355\u7684\u79fb\u52a8\u5e73\u5747\u6ee4\u6ce2\u5c31\u80fd\u6709\u6548\u51cf\u5c11\u91cf\u5316\u566a\u58f0&#xff0c;\u8ba9\u8f93\u51fa\u6ce2\u5f62\u66f4\u52a0\u5e73\u6ed1\u3002\u7279\u522b\u662f\u5728\u6ce2\u5f62\u70b9\u6570\u8f83\u5c11\u7684\u60c5\u51b5\u4e0b&#xff0c;\u8fd9\u79cd\u5904\u7406\u6548\u679c\u5f88\u660e\u663e\u3002<\/p>\n<h3>6. \u6027\u80fd\u4f18\u5316\u4e0e\u5b9e\u9645\u95ee\u9898\u89e3\u51b3<\/h3>\n<h4>6.1 \u5b9a\u65f6\u5668\u53c2\u6570\u4f18\u5316\u6280\u5de7<\/h4>\n<p>\u5b9a\u65f6\u5668\u7684\u53c2\u6570\u8bbe\u7f6e\u76f4\u63a5\u5f71\u54cd\u6ce2\u5f62\u8f93\u51fa\u7684\u9891\u7387\u548c\u7a33\u5b9a\u6027\u3002\u9884\u5206\u9891\u5668\u548c\u81ea\u52a8\u91cd\u88c5\u8f7d\u503c\u7684\u914d\u7f6e\u9700\u8981\u4ed4\u7ec6\u8ba1\u7b97\u3002\u6211\u7684\u7ecf\u9a8c\u662f\u5c3d\u91cf\u8ba9\u5b9a\u65f6\u5668\u5de5\u4f5c\u5728\u8f83\u9ad8\u7684\u9891\u7387&#xff0c;\u8fd9\u6837\u53ef\u4ee5\u83b7\u5f97\u66f4\u597d\u7684\u65f6\u95f4\u5206\u8fa8\u7387\u3002<\/p>\n<p>\u6bd4\u5982\u8981\u8f93\u51fa1kHz\u7684\u6b63\u5f26\u6ce2&#xff0c;\u5982\u679c\u6ce2\u5f62\u6709100\u4e2a\u70b9&#xff0c;\u90a3\u4e48DAC\u7684\u66f4\u65b0\u9891\u7387\u5e94\u8be5\u662f100kHz\u3002\u5b9a\u65f6\u5668\u5c31\u8981\u914d\u7f6e\u4e3a100kHz\u7684\u89e6\u53d1\u9891\u7387\u3002\u6839\u636e96MHz\u7684\u7cfb\u7edf\u65f6\u949f&#xff0c;\u9884\u5206\u9891\u503c\u53ef\u4ee5\u8bbe\u4e3a959&#xff0c;\u81ea\u52a8\u91cd\u88c5\u8f7d\u503c\u8bbe\u4e3a0&#xff0c;\u8fd9\u6837\u6b63\u597d\u5f97\u5230100kHz\u7684\u5b9a\u65f6\u9891\u7387\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u8c03\u8bd5\u4e2d&#xff0c;\u6211\u7ecf\u5e38\u7528\u793a\u6ce2\u5668\u89c2\u5bdf\u8f93\u51fa\u6ce2\u5f62&#xff0c;\u5fae\u8c03\u5b9a\u65f6\u5668\u53c2\u6570\u6765\u83b7\u5f97\u6700\u7a33\u5b9a\u7684\u8f93\u51fa\u3002\u6709\u65f6\u5019\u7a0d\u5fae\u8c03\u6574\u4e00\u4e0b\u53c2\u6570&#xff0c;\u6ce2\u5f62\u8d28\u91cf\u5c31\u4f1a\u6709\u660e\u663e\u63d0\u5347\u3002<\/p>\n<h4>6.2 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