{"id":373,"date":"2026-04-16T20:23:00","date_gmt":"2026-04-16T12:23:00","guid":{"rendered":"https:\/\/xuemeng.work\/?p=373"},"modified":"2026-04-16T20:27:36","modified_gmt":"2026-04-16T12:27:36","slug":"xm-power-kit-%e4%b8%87%e7%94%a8%e8%a1%a8%e6%a8%a1%e5%9d%97-%e8%ae%b2%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/xuemeng.work\/index.php\/2026\/04\/16\/xm-power-kit-%e4%b8%87%e7%94%a8%e8%a1%a8%e6%a8%a1%e5%9d%97-%e8%ae%b2%e8%a7%a3\/","title":{"rendered":"XM POWER KIT\u2014 \u4e07\u7528\u8868\u6a21\u5757 \u8bb2\u89e3"},"content":{"rendered":"\n

\u4e07\u7528\u8868\u6a21\u5757\u5171\u6709\u56db\u4e2a\u529f\u80fd\uff1a\u6d4b\u7535\u538b\u3001\u6d4b\u7535\u6d41\u3001\u6d4b\u7535\u963b(2K\/30K\u6863)\uff0c\u4ee5\u53ca\u4e8c\u6781\u7ba1\u6863\u529f\u80fd\u3002\u5176\u4e2d\u4e8c\u6781\u7ba1\u6863\u4e0e\u7535\u963b\u686330K\u6863\u590d\u7528\u786c\u4ef6\uff0c\u4e0b\u9762\u6211\u4eec\u6765\u4f9d\u6b21\u8bb2\u89e3\uff1a<\/p>\n\n\n\n

\u4e00\u3001\u6321\u4f4d\u5207\u6362<\/h2>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

\u7531\u4e8e\u677f\u5b50\u7a7a\u95f4\u6781\u4e3a\u53d7\u9650\uff0c\u53ea\u591f\u585e\u5f97\u4e0b\u4e00\u7ec4\u9999\u8549\u5934\uff0c\u4e3a\u4e86\u534f\u8c03\u201c\u6570\u63a7\u7535\u6e90\u201d\u3001\u201c\u7535\u538b\u8868\u201d\u3001\u201c\u7535\u963b\u8868\u201d\u3001\u201c\u7535\u6d41\u8868\u201d\uff0c\u6211\u4eec\u5fc5\u987b\u8fdb\u884c\u9009\u901a\u63a7\u5236\uff0c\u56e0\u6b64\u5c31\u6709\u4e86\u4e0a\u56fe\u7684\u8bbe\u8ba1~<\/p>\n\n\n\n

\u5bf9\u4e8e\u7ea2\u8868\u7b14\uff0c\u6570\u63a7\u7535\u6e90\u90e8\u5206\u7684\u9632\u5012\u704c\u8bbe\u8ba1\uff08mx5050t + Mos\u7ba1\uff09\u521a\u597d\u6784\u6210\u4e00\u4e2a\u5f00\u5173\uff0c\u4e07\u7528\u8868\u7684\u6bcf\u4e2a\u529f\u80fd\u90fd\u5206\u522b\u4f7f\u7528\u4e00\u4e2a\u5927\u7535\u6d41\u5149\u8026\u9694\u5f00\u3002\u9700\u8981\u7528\u54ea\u4e00\u4e2a\u529f\u80fd\uff0c\u5c31\u6253\u5f00\u54ea\u4e00\u4e2a\u5f00\u5173\uff0c\u8054\u901a\u7ea2\u8868\u7b14\u5373\u53ef~<\/p>\n\n\n\n

\u5bf9\u4e8e\u9ed1\u8868\u7b14\uff0c\u5bf9\u4e8e\u6570\u63a7\u7535\u6e90\u90e8\u5206\uff0c\u7531\u4e8e\u9700\u8981\u6d41\u8fc7\u5927\u7535\u6d41\uff0c\u56e0\u6b64\u4f7f\u7528\u6805\u6781\u9a71\u52a8\u82af\u7247 + Mos\u7ba1 \u7684\u7ec4\u5408\uff1b\u5bf9\u4e8e\u4e07\u7528\u8868\uff0c\u4ec5\u6709\u7535\u6d41\u8868\u548c\u7535\u963b\u8868\u9700\u8981\u63a5\u5230\u6a21\u62df\u5730\uff0c\u4e0d\u9700\u8981\u8fc7\u5927\u7535\u6d41\uff0c\u56e0\u6b64\u4e00\u4e2a\u666e\u901a\u7684Nmos\u5373\u53ef\u8fbe\u6210\u8981\u6c42~<\/p>\n\n\n\n

<\/p>\n\n\n\n

\u8fd9\u91cc\u94fa\u57ab\u4e00\u4e2a\u524d\u63d0\uff1amx5050t + Mos\u7ba1\u6784\u6210\u7684\u5f00\u5173\u5e76\u4e0d\u7406\u60f3\uff0c\u6839\u636emx5050t\u7684\u6570\u636e\u624b\u518c\uff0c\u5728\u5173\u65ad\u72b6\u6001\u4e0b\uff0cmx5050t\u4e3a \u7ea2\u8868\u7b14\u7aef -> \u7535\u6e90\u7aef\u63d0\u4f9b\u4e86\u4e00\u4e2a2mA\u7684\u8def\u5f84\uff0c\u7535\u6e90\u7aef\u8fd8\u63a5\u4e86\u4e00\u4e2a500\u6b27\u7684\u8f93\u51fa\u6cc4\u653e\u7535\u963b\uff08\u53ef\u5f00\u5173\uff09\uff0c\u5728\u4e07\u7528\u8868\u7684\u6240\u6709\u6321\u4f4d\u4e2d\uff0c\u9664\u4e86\u7535\u6d41\u8868\u5916\u5747\u5f00\u542f\u3002<\/p>\n\n\n\n

<\/p>\n\n\n\n

\u4e8c\u3001\u7535\u538b\u8868<\/h2>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\u7535\u538b\u8868\u7684\u786c\u4ef6\u8fd8\u662f\u5f88\u7b80\u5355\u7684\uff1a\u524d\u7ea7\u5148\u7ecf\u8fc747K+2.2K\u7684\u7535\u963b\u7f51\u7edc\u5206\u538b\uff0c\u5c06\u538b\u5dee\u4ece\u8bbe\u8ba1\u7684\u00b136V\u964d\u4f4e\u5230\u00b11.61V\uff1b\u540e\u7ea7\u7684U56.1\u3001U56.2\u3001U56.4\u6784\u6210\u4e00\u4e2a\u653e\u5927\u500d\u7387\u4e3a1\u7684\u4eea\u8868\u653e\u5927\u5668\uff0c\u540c\u65f6\u5c06\u8f93\u51fa\u62ac\u53471.65V\uff08DMM_VREF\uff09\u3002\u8fd9\u6837\uff0c\u6700\u7ec8\u7684\u8f93\u51fa\u5c31\u662f1.65\u00b11.61 = 0.04~3.26V\uff0c\u7ecf\u8fc7ADC\u8bfb\u53d6\u540e\u5c31\u53ef\u4ee5\u6362\u7b97\u51fa\u771f\u5b9e\u7684\u7535\u538b\u5dee~<\/p>\n\n\n\n

\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8868\u7b14\u4ec0\u4e48\u90fd\u6ca1\u6709\u63a5\u65f6\uff0c\u7ea2\u7aef\u548c\u9ed1\u7aef\u90fd\u662f\u60ac\u7a7a\u7684<\/strong>\uff01\u8fd9\u65f6\u5019\u5c31\u9700\u8981\u6709\u4e1c\u897f\u6765\u6cc4\u653e\u7531\u8fd0\u653eIb\u5f15\u8d77\u7684\u6d6e\u7a7a\u7535\u538b\u3002\u5bf9\u4e8e\u7ea2\u8868\u7b14\u6765\u8bf4\uff0c\u524d\u9762\u94fa\u57ab\u63d0\u5230\u7684\uff0c\u5219\u6784\u6210\u4e86\u4e00\u6761 \u7ea2\u7aef-> 500\u03a9 -> PGND -> AGND\u7684\u6cc4\u653e\u8def\u5f84\uff1b\u9ed1\u7aef\u5219\u9700\u8981\u8865\u5145\u4e00\u4e2a1K\u7684\u7535\u963b\u3002<\/p>\n\n\n\n

\u4f46\u662f\u4e0d\u5f97\u4e0d\u8bf4\uff0c\u8fd9\u6837\u505a\u7684\u4ee3\u4ef7\u5c31\u662f\u4e07\u7528\u8868\u7684\u524d\u7aef\u963b\u503c\u592a\u4f4e\u4e86\uff01\u5728\u6d4b\u91cf\u963b\u6297\u504f\u9ad8<\/strong>\u7684\u7535\u538b\u65f6\uff08\u5e26\u8f7d\u80fd\u529b\u5f31\uff09\uff0c\u6d4b\u91cf\u503c\u4f1a\u504f\u4f4e\u3002<\/p>\n\n\n\n

\u4e09\u3001\u7535\u6d41\u8868<\/h2>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\u7535\u6d41\u8868\u7684\u8bbe\u8ba1\u6ca1\u4ec0\u4e48\u597d\u8bb2\u7684\uff0c\u7531\u4e8e\u5149\u8026\u7684\u5e26\u8f7d\u80fd\u529b\u9650\u5236\uff0c\u6211\u4eec\u7684\u7535\u6d41\u6d4b\u91cf\u4e0a\u9650\u53ea\u80fd\u7ed9\u52302A\u3002\u7535\u8def\u539f\u7406\u5f88\u7b80\u5355\uff1a\u7535\u6d41\u6d41\u8fc715m\u03a9\u7535\u963b\u4ea7\u751f\u538b\u964d\uff0cTP181\u5c06\u538b\u964d\u653e\u592750\u500d\u540e\uff0c\u53e0\u52a01.65V\u7684\u76f4\u6d41\u504f\u7f6e\uff08\u7528\u6765\u5b9e\u73b0\u6d4b\u8d1f\u7535\u538b\uff09\u8f93\u51fa\u5230DAC\u6d4b\u91cf\u3002\u6211\u4eec\u7b80\u5355\u7b97\u4e00\u4e0b\uff1a<\/p>\n\n\n\n

1.65<\/mn>50<\/mn><\/mfrac>\u00d7<\/mo>1000<\/mn>15<\/mn><\/mfrac>=<\/mo>33<\/mn>15<\/mn><\/mfrac>=<\/mo>2.2<\/mn><\/mspace>A<\/mtext><\/mrow>\\frac{1.65}{50} \\times \\frac{1000}{15} = \\frac{33}{15} = 2.2 \\, \\text{A}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\u56db\u3001\u7535\u963b\u8868<\/h2>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\u7535\u963b\u8868\u5c31\u66f4\u7b80\u5355\u4e86\uff0c\u7535\u963b\u5206\u538b\u7b97\u7535\u963b\u561b\uff0c\u77e5\u9053\u603b\u7535\u538b\u3001\u77e5\u9053\u57fa\u51c6\u7535\u963b\u963b\u503c\u3001\u77e5\u9053\u5f85\u6d4b\u7535\u963b\u7535\u538b\uff0c\u963b\u503c\u81ea\u7136\u662f\u80fd\u8ba1\u7b97\u7684\u3002<\/p>\n\n\n\n

R<\/mi>\u57fa<\/mtext><\/msub>3.3<\/mn>\u2212<\/mo>V<\/mi>\u6d4b<\/mtext><\/msub><\/mrow><\/mfrac>=<\/mo>R<\/mi>x<\/mi><\/msub>V<\/mi>\u6d4b<\/mtext><\/msub><\/mfrac><\/mspace>\u27f9<\/mo><\/mspace>R<\/mi>x<\/mi><\/msub>=<\/mo>R<\/mi>\u57fa<\/mtext><\/msub>\u22c5<\/mo>V<\/mi>\u6d4b<\/mtext><\/msub><\/mrow>3.3<\/mn>\u2212<\/mo>V<\/mi>\u6d4b<\/mtext><\/msub><\/mrow><\/mfrac><\/mrow>\\frac{R_{\\text{\u57fa}}}{3.3 – V_{\\text{\u6d4b}}} = \\frac{R_x}{V_{\\text{\u6d4b}}} \\implies R_x = \\frac{R_{\\text{\u57fa}} \\cdot V_{\\text{\u6d4b}}}{3.3 – V_{\\text{\u6d4b}}}<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\u4e0d\u8fc7\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u91cc\u4f9d\u65e7\u501f\u7528\u4e86\u524d\u9762\u201c\u94fa\u57ab\u201d\u5904\u63d0\u5230\u7684\u6cc4\u653e\u7535\u8def\u6765\u7a33\u5b9a\u7535\u538b\uff0c\u4f46\u662f\u4ee3\u4ef7\u5c31\u662f\u6d4b\u91cf\u8303\u56f4\u53d7\u9650\u3002<\/p>\n\n\n\n

\u4e94\u3001\u8f6f\u4ef6\u8bb2\u89e3<\/h2>\n\n\n\n

\u4e07\u7528\u8868\u7684ADC\u6570\u636e\u5904\u7406\u662f\u5b9e\u73b0\u9ad8\u7cbe\u5ea6\u3001\u7a33\u5b9a\u6d4b\u91cf<\/strong>\u7684\u6838\u5fc3\u73af\u8282\uff0c\u91c7\u7528\u5b9a\u65f6\u5668\u89e6\u53d1+DMA\u591a\u901a\u9053\u540c\u6b65\u91c7\u96c6<\/strong>\u7684\u786c\u4ef6\u67b6\u6784\uff0c\u642d\u914d\u89e3\u4ea4\u9519\u3001\u53bb\u6781\u503c\u6ee4\u6ce2\u3001\u8fc7\u91c7\u6837\u5347\u7cbe\u5ea6\u3001\u786c\u4ef6\u6821\u51c6\u3001IIR\u5e73\u6ed1\u6ee4\u6ce2<\/strong>\u7684\u4e94\u7ea7\u8f6f\u4ef6\u5904\u7406\u6d41\u7a0b\uff0c\u5c06STM32\u5185\u7f6e12\u4f4dADC\u7684\u539f\u59cb\u91c7\u6837\u6570\u636e\uff0c\u8f6c\u5316\u4e3a\u7cbe\u51c6\u3001\u65e0\u6296\u52a8\u7684\u7535\u538b\/\u7535\u6d41\/\u7535\u963b\u7269\u7406\u6d4b\u91cf\u503c\u3002<\/p>\n\n\n\n

5.1 \u91c7\u96c6\u521d\u59cb\u5316\u914d\u7f6e<\/h3>\n\n\n\n

\u5728\u542f\u52a8\u6570\u636e\u5904\u7406\u524d\uff0c\u5148\u5b8c\u6210ADC DMA\u91c7\u96c6\u4e0e\u89e6\u53d1\u5b9a\u65f6\u5668\u7684\u57fa\u7840\u914d\u7f6e\uff0c\u4e3a\u81ea\u52a8\u5316\u3001\u540c\u6b65\u5316\u91c7\u6837\u63d0\u4f9b\u786c\u4ef6\u652f\u6491\uff1a<\/p>\n\n\n\n

\/\/ \u5168\u5c40\u53d8\u91cf - ADC\u539f\u59cb\u6570\u636e\u7f13\u5b58\n\/\/ \u4e09\u4e2a\u901a\u9053\uff0c\u6bcf\u4e2a\u901a\u9053200\u4e2a\u91c7\u6837\u70b9\uff0c\u603b\u8ba1600\u4e2a\u6570\u636e\nvolatile uint16_t dmm_adc_raw_buf[600] = {0};\n\/\/ \u542f\u52a8ADC DMA\u91c7\u96c6\uff08600\u4e2a\u6570\u636e\uff09\nHAL_ADC_Start_DMA(&hadc1, (uint32_t *) dmm_adc_raw_buf, 600);\n\/\/ \u914d\u7f6e\u5b9a\u65f6\u56688\uff1a20Khz\u89e6\u53d1\uff08\u9884\u5206\u98910\uff0c\u81ea\u52a8\u91cd\u88c57199\uff09\n__HAL_TIM_SET_PRESCALER(&htim8, 0);\n__HAL_TIM_SET_AUTORELOAD(&htim8, 7200 - 1);\nAdcTim_ON();                             \/\/ \u5f00\u542fADC\u89e6\u53d1<\/code><\/pre>\n\n\n\n
    \n
  • \u7f13\u5b58\u5b9a\u4e49\uff1admm_adc_raw_buf<\/code>\u4e3a600\u5b57\u8282\u7684\u6613\u5931\u6027\u6570\u7ec4\uff0c\u5b58\u50a83\u4e2a\u6d4b\u91cf\u901a\u9053\u00d7200\u4e2a\u91c7\u6837\u70b9<\/strong>\u7684\u4ea4\u9519\u539f\u59cb\u6570\u636e\uff0cvolatile<\/code>\u9632\u6b62\u7f16\u8bd1\u5668\u4f18\u5316\uff0c\u4fdd\u8bc1DMA\u6570\u636e\u5b9e\u65f6\u540c\u6b65\u3002<\/li>\n\n\n\n
  • DMA\u91c7\u96c6\uff1a\u542f\u7528ADC DMA\u6a21\u5f0f\uff0c\u81ea\u52a8\u5c06\u91c7\u6837\u7ed3\u679c\u642c\u8fd0\u81f3\u7f13\u5b58\uff0c\u65e0\u9700CPU\u9010\u6b21\u8bfb\u53d6\uff0c\u89e3\u653e\u4e3b\u63a7\u8d44\u6e90\u3002<\/li>\n\n\n\n
  • \u5b9a\u65f6\u5668\u89e6\u53d1\uff1aTIM8\u914d\u7f6e\u4e3a20kHz\u89e6\u53d1\u9891\u7387\uff0c\u56fa\u5b9a\u91c7\u6837\u5468\u671f\uff0c\u786e\u4fdd\u7535\u538b\u3001\u7535\u6d41\u3001\u7535\u963b\u4e09\u901a\u9053\u91c7\u6837\u65f6\u5e8f\u4e25\u683c\u540c\u6b65\uff0c\u907f\u514d\u65f6\u5e8f\u8bef\u5dee\u3002<\/li>\n<\/ul>\n\n\n\n
    5.2 ADC\u8f6c\u6362\u5b8c\u6210\u56de\u8c03\uff08\u6838\u5fc3\u6570\u636e\u5904\u7406\uff09<\/h3>\n\n\n\n
    \u5f53DMA\u5b8c\u6210600\u4e2a\u6570\u636e\u642c\u8fd0\u540e\uff0c\u89e6\u53d1CB_DMM_ADC_ConvCpltCallback<\/code>\u56de\u8c03\u51fd\u6570\uff0c\u8fdb\u5165\u5b8c\u6574\u7684\u6570\u636e\u5904\u7406\u6d41\u7a0b\uff0c\u5904\u7406\u5b8c\u6210\u540e\u91cd\u542f\u91c7\u96c6\uff0c\u5b9e\u73b0\u5faa\u73af\u6d4b\u91cf\u3002<\/p>\n\n\n\n
    5.2.1 \u6682\u505c\u91c7\u96c6\u4e0e\u6570\u636e\u89e3\u4ea4\u9519<\/h4>\n\n\n\n
    ADC\u591a\u901a\u9053\u626b\u63cf\u6a21\u5f0f\u4f1a\u6309\u901a\u90530\u2192\u901a\u90531\u2192\u901a\u90532<\/strong>\u7684\u987a\u5e8f\u4ea4\u9519\u5b58\u50a8\u6570\u636e\uff0c\u9700\u5148\u62c6\u5206\u6570\u636e\u5e76\u6682\u505c\u91c7\u96c6\uff0c\u9632\u6b62\u7f13\u5b58\u88ab\u8986\u76d6\uff1a<\/p>\n\n\n\n
    AdcTim_OFF(); \/\/ \u5173\u95edADC\u89e6\u53d1\u5b9a\u65f6\u5668\n\n\/\/ 1. \u89e3\u4ea4\u9519\uff1a\u5c06600\u4e2a\u4ea4\u9519\u6570\u636e\u62c6\u5206\u4e3a3\u4e2a\u901a\u9053\u5404200\u4e2a\u70b9\nuint16_t ch1_data[200]; \/\/ \u7535\u538b\u901a\u9053\nuint16_t ch2_data[200]; \/\/ \u7535\u6d41\u901a\u9053\nuint16_t ch3_data[200]; \/\/ \u7535\u963b\u901a\u9053\nint idx = 0;\nfor (int i = 0; i < 600; i += 3) {\n    ch1_data[idx] = dmm_adc_raw_buf[i];    \/\/ \u901a\u90532\uff08\u7535\u538b\uff09\n    ch2_data[idx] = dmm_adc_raw_buf[i+1];  \/\/ \u901a\u90531\uff08\u7535\u6d41\uff09\n    ch3_data[idx] = dmm_adc_raw_buf[i+2];  \/\/ \u901a\u90530\uff08\u7535\u963b\uff09\n    idx++;\n}<\/code><\/pre>\n\n\n\n
      \n
    • \u6682\u505c\u89e6\u53d1\uff1a\u6570\u636e\u5904\u7406\u671f\u95f4\u5173\u95ed\u5b9a\u65f6\u5668\u89e6\u53d1\uff0c\u907f\u514d\u65b0\u91c7\u6837\u6570\u636e\u8986\u76d6\u7f13\u5b58\uff0c\u4fdd\u8bc1\u6570\u636e\u5b8c\u6574\u6027\u3002<\/li>\n\n\n\n
    • \u89e3\u4ea4\u9519\uff1a\u5c06\u8fde\u7eed\u7684\u4ea4\u9519\u91c7\u6837\u6570\u636e\uff0c\u6309\u901a\u9053\u62c6\u5206\u5230\u4e09\u4e2a\u72ec\u7acb\u6570\u7ec4\uff0c\u6bcf\u4e2a\u901a\u9053\u5f97\u5230200\u4e2a\u7eaf\u51c0\u91c7\u6837\u70b9\u3002<\/li>\n<\/ul>\n\n\n\n
      5.2.2 \u6392\u5e8f\u53bb\u6781\u503c\u6ee4\u6ce2\uff08\u53bb\u6bdb\u523a\uff09<\/h4>\n\n\n\n
      \u9488\u5bf9\u73af\u5883\u7535\u78c1\u5e72\u6270\u3001\u7535\u6e90\u566a\u58f0\u4ea7\u751f\u7684\u5c16\u5cf0\u6570\u636e\uff0c\u91c7\u7528\u6392\u5e8f+\u5254\u9664\u6781\u503c<\/strong>\u7684\u65b9\u5f0f\u6d88\u9664\u6bdb\u523a\uff1a<\/p>\n\n\n\n
      \/\/ 2. \u6392\u5e8f\uff08\u7528\u4e8e\u540e\u7eed\u53bb\u6bdb\u523a\uff09\nqsort(ch1_data, 200, sizeof(uint16_t), compare_uint16_ternary);\nqsort(ch2_data, 200, sizeof(uint16_t), compare_uint16_ternary);\nqsort(ch3_data, 200, sizeof(uint16_t), compare_uint16_ternary);\n\n\/\/ 3. \u6c42\u548c\uff08\u53bb\u6bdb\u523a\uff1a\u53bb\u6389\u524d4\u548c\u540e4\u4e2a\u6781\u503c\uff09\nuint32_t ch1_sum = 0, ch2_sum = 0, ch3_sum = 0;\nfor (uint8_t i = 4; i < 196; i++) {\n    ch1_sum += ch1_data[i];\n    ch2_sum += ch2_data[i];\n    ch3_sum += ch3_data[i];\n}<\/code><\/pre>\n\n\n\n
        \n
      • \u5feb\u901f\u6392\u5e8f\uff1a\u5c06200\u4e2a\u91c7\u6837\u70b9\u4ece\u5c0f\u5230\u5927\u6392\u5e8f\uff0c\u6781\u503c\u4f1a\u96c6\u4e2d\u5728\u6570\u7ec4\u9996\u5c3e\u4f4d\u7f6e\u3002<\/li>\n\n\n\n
      • \u5254\u9664\u6781\u503c\uff1a\u53bb\u6389\u524d4\u4e2a\u6700\u5c0f\u503c\u548c\u540e4\u4e2a\u6700\u5927\u503c\uff0c\u4ec5\u4fdd\u7559\u4e2d\u95f4192\u4e2a\u6709\u6548\u6570\u636e\uff0c\u5f7b\u5e95\u6ee4\u9664\u5c16\u5cf0\u566a\u58f0\u5e72\u6270\u3002<\/li>\n<\/ul>\n\n\n\n
        5.2.3 \u8fc7\u91c7\u6837\u5347\u7cbe\u5ea6\uff0812\u4f4d\u219214\u4f4d\uff09<\/h4>\n\n\n\n
        STM32\u5185\u7f6eADC\u4e3a12\u4f4d\u7cbe\u5ea6\uff0c\u901a\u8fc7\u8fc7\u91c7\u6837+\u53f3\u79fb<\/strong>\u7b97\u6cd5\uff0c\u8f6f\u4ef6\u63d0\u5347\u81f314\u4f4d\u9ad8\u7cbe\u5ea6\uff1a<\/p>\n\n\n\n
        \/\/ 4. \u8fc7\u91c7\u6837\u523014bit + \u5747\u503c\u6ee4\u6ce2\uff08192\u4e2a\u6570\u636e\u6c42\u548c\u540e\/12\uff09\nuint16_t ch1_14bit = 0, ch2_14bit = 0, ch3_14bit = 0;\nch1_14bit = (ch1_sum >> 2) \/ 12;\nch2_14bit = (ch2_sum >> 2) \/ 12;\nch3_14bit = (ch3_sum >> 2) \/ 12;<\/code><\/pre>\n\n\n\n
          \n
        • \u8fc7\u91c7\u6837\u539f\u7406\uff1a12\u4f4dADC\uff080~4095\uff09\u901a\u8fc74\u500d\u8fc7\u91c7\u6837\u53f3\u79fb2\u4f4d\uff0c\u7cbe\u5ea6\u5347\u7ea7\u4e3a14\u4f4d\uff080~16383\uff09\u3002<\/li>\n\n\n\n
        • \u5747\u503c\u6ee4\u6ce2\uff1a192\u4e2a\u6709\u6548\u6570\u636e\u6c42\u548c\u540e\u9664\u4ee512\uff0c\u8fdb\u4e00\u6b65\u5e73\u6ed1\u6570\u636e\uff0c\u5927\u5e45\u63d0\u5347\u6d4b\u91cf\u5206\u8fa8\u7387\u3002<\/li>\n<\/ul>\n\n\n\n
          5.2.4 \u786c\u4ef6\u6821\u51c6\u4e0e\u7269\u7406\u91cf\u8f6c\u6362<\/h4>\n\n\n\n
          \u5c0614\u4f4dADC\u6570\u5b57\u91cf\uff0c\u7ed3\u5408\u786c\u4ef6\u6821\u51c6\u53c2\u6570\uff0c\u7ebf\u6027\u8f6c\u6362\u4e3a\u5b9e\u9645\u7535\u538b\u3001\u7535\u6d41\u3001\u7535\u963b\u7269\u7406\u503c\uff1a<\/p>\n\n\n\n
          \/\/ 5. \u6821\u51c6\u8ba1\u7b97\uff08\u8f6c\u6362\u4e3a\u5b9e\u9645\u7269\u7406\u503c\uff09\n\/\/ \u7535\u538b\u6821\u51c6\nint32_t temp1 = (int32_t)ch1_14bit - (8192 - UserParam.DMM_Voltage_Original);\nfloat raw_voltage = (float) temp1 * (3.3f \/ 16383.0f) * (temp1 >= 0\n                                                       ? UserParam.DMM_Voltage_Factor_R\n                                                       : UserParam.DMM_Voltage_Factor_B);\n\/\/ \u7535\u6d41\u6821\u51c6\nint32_t temp2 = (int32_t)ch2_14bit - (8192 + UserParam.DMM_Current_Original);\nfloat raw_current = (float) temp2 * (3.3f \/ 16383.0f) * UserParam.DMM_Current_Factor;\n\n\/\/ \u7535\u963b\u6821\u51c6\nint16_t Res_Original;\ndmm_res_mode == DMM_RES_MODE_200 ? Res_Original = UserParam.DMM_Res_R200_Original : (Res_Original = UserParam.DMM_Res_R2K_Original);\nfloat raw_resistance_voltage = (float)(ch3_14bit + Res_Original) * (3.3f \/ 16383.0f);<\/code><\/pre>\n\n\n\n
            \n
          • \u96f6\u70b9\u6821\u51c6\uff1a\u6263\u9664\u786c\u4ef6\u504f\u79fb\u53c2\u6570\uff08Original<\/code>\uff09\uff0c\u8865\u507f\u8fd0\u653e\u3001\u5206\u538b\u7535\u963b\u7684\u786c\u4ef6\u8bef\u5dee\u3002<\/li>\n\n\n\n
          • \u91cf\u7a0b\u9002\u914d\uff1a\u7535\u538b\u5206\u6b63\u8d1f\u91cf\u7a0b\u3001\u7535\u963b\u5206200\u03a9\/2k\u03a9\u91cf\u7a0b\uff0c\u5339\u914d\u4e07\u7528\u8868\u591a\u6863\u4f4d\u6d4b\u91cf\u9700\u6c42\u3002<\/li>\n\n\n\n
          • \u7ebf\u6027\u8f6c\u6362\uff1a\u57fa\u4e8e3.3V ADC\u53c2\u8003\u7535\u538b\uff0c\u5c06\u6570\u5b57\u91cf\u7cbe\u51c6\u8f6c\u6362\u4e3a\u771f\u5b9e\u7269\u7406\u91cf\u3002<\/li>\n<\/ul>\n\n\n\n
            5.2.5 IIR\u4e00\u9636\u5e73\u6ed1\u6ee4\u6ce2<\/h4>\n\n\n\n
            \u901a\u8fc7\u65e0\u9650\u8109\u51b2\u54cd\u5e94\uff08IIR\uff09\u6ee4\u6ce2\uff0c\u6291\u5236\u9ad8\u9891\u566a\u58f0\uff0c\u8ba9\u6d4b\u91cf\u503c\u65e0\u6296\u52a8\u3001\u5e73\u6ed1\u8f93\u51fa\uff1a<\/p>\n\n\n\n
            \/\/ 6. IIR\u6ee4\u6ce2\nDMM_Voltage = iir_filter(raw_voltage, iir_prev_voltage, IIR_ALPHA_VOLTAGE);\nDMM_Current = iir_filter(raw_current, iir_prev_current, IIR_ALPHA_CURRENT);\nDMM_Resistance_Voltage = iir_filter(raw_resistance_voltage, iir_prev_resistance, IIR_ALPHA_RESISTANCE);\n\n\/\/ 7. \u66f4\u65b0\u6ee4\u6ce2\u5386\u53f2\u503c\niir_prev_voltage = DMM_Voltage;\niir_prev_current = DMM_Current;\niir_prev_resistance = DMM_Resistance_Voltage;<\/code><\/pre>\n\n\n\n
              \n
            • \u6ee4\u6ce2\u539f\u7406\uff1a\u7ed3\u5408\u5f53\u524d\u6d4b\u91cf\u503c\u4e0e\u5386\u53f2\u6ee4\u6ce2\u503c\u52a0\u6743\u8ba1\u7b97\uff0c\u517c\u987e\u54cd\u5e94\u901f\u5ea6\u4e0e\u7a33\u5b9a\u6027\u3002<\/li>\n\n\n\n
            • \u72ec\u7acb\u7cfb\u6570\uff1a\u7535\u538b\u3001\u7535\u6d41\u3001\u7535\u963b\u4f7f\u7528\u4e13\u5c5e\u6ee4\u6ce2\u7cfb\u6570\uff0c\u9002\u914d\u4e0d\u540c\u7269\u7406\u91cf\u7684\u6d4b\u91cf\u7279\u6027\u3002<\/li>\n<\/ul>\n\n\n\n
              5.2.6 \u91cd\u542f\u91c7\u96c6\uff0c\u5faa\u73af\u5de5\u4f5c<\/h4>\n\n\n\n
              \u6570\u636e\u5904\u7406\u5b8c\u6210\u540e\uff0c\u91cd\u65b0\u5f00\u542f\u5b9a\u65f6\u5668\u89e6\u53d1\uff0c\u8fdb\u5165\u4e0b\u4e00\u8f6e\u91c7\u6837\u2192\u5904\u7406<\/strong>\u5faa\u73af\uff1a<\/p>\n\n\n\n
              AdcTim_ON(); \/\/ \u91cd\u65b0\u5f00\u542fADC\u89e6\u53d1\u5b9a\u65f6\u5668<\/code><\/pre>\n\n\n\n
              5.3 \u6a21\u5757\u603b\u7ed3<\/h3>\n\n\n\n
              \u672cADC\u6570\u636e\u5904\u7406\u6a21\u5757\u662f\u4e07\u7528\u8868\u5b9e\u73b0\u9ad8\u7cbe\u5ea6\u6d4b\u91cf\u7684\u6838\u5fc3\uff1a<\/p>\n\n\n\n
              \u6548\u679c\u5c42\u9762<\/strong>\uff1a\u5c06STM32 12\u4f4dADC\u8f6f\u5347\u7ea7\u4e3a14\u4f4d\u9ad8\u7cbe\u5ea6\u6d4b\u91cf\uff0c\u8f93\u51fa\u7a33\u5b9a\u3001\u65e0\u6296\u52a8\u7684\u7535\u538b\/\u7535\u6d41\/\u7535\u963b\u503c\uff0c\u5b8c\u5168\u6ee1\u8db3\u624b\u6301\u4e07\u7528\u8868\u7684\u5b9e\u7528\u6d4b\u91cf\u9700\u6c42\u3002<\/p>\n\n\n\n
              \u786c\u4ef6\u5c42\u9762<\/strong>\uff1a\u5b9a\u65f6\u5668\u89e6\u53d1+DMA\u642c\u8fd0\uff0c\u5b9e\u73b0\u4e09\u901a\u9053\u540c\u6b65\u81ea\u52a8\u5316\u91c7\u6837\uff0c\u4e0d\u5360\u7528CPU\u8d44\u6e90\u3002<\/p>\n\n\n\n
              \u7b97\u6cd5\u5c42\u9762<\/strong>\uff1a\u901a\u8fc7\u89e3\u4ea4\u9519\u3001\u53bb\u6781\u503c\u3001\u8fc7\u91c7\u6837\u3001\u6821\u51c6\u3001IIR\u6ee4\u6ce2\u4e94\u7ea7\u5904\u7406\uff0c\u6d88\u9664\u566a\u58f0\u3001\u63d0\u5347\u7cbe\u5ea6\u3001\u8865\u507f\u786c\u4ef6\u8bef\u5dee\u3002<\/p>\n\n\n\n
              \u5077\u61d2\u7528ai~\u563f\u563f<\/p>\n","protected":false},"excerpt":{"rendered":"
              \u4e07\u7528\u8868\u6a21\u5757\u5171\u6709\u56db\u4e2a\u529f\u80fd\uff1a\u6d4b\u7535\u538b\u3001\u6d4b\u7535\u6d41\u3001\u6d4b\u7535\u963b(2K\/30K\u6863)\uff0c\u4ee5\u53ca\u4e8c\u6781\u7ba1\u6863\u529f\u80fd\u3002\u5176\u4e2d\u4e8c\u6781\u7ba1\u6863\u4e0e\u7535\u963b\u686330K […]<\/p>\n","protected":false},"author":1,"featured_media":381,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,10],"tags":[26,28],"class_list":["post-373","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-xm-power-kit","category-10","tag-xm-power-kit","tag-28"],"_links":{"self":[{"href":"https:\/\/xuemeng.work\/index.php\/wp-json\/wp\/v2\/posts\/373","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xuemeng.work\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xuemeng.work\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xuemeng.work\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xuemeng.work\/index.php\/wp-json\/wp\/v2\/comments?post=373"}],"version-history":[{"count":2,"href":"https:\/\/xuemeng.work\/index.php\/wp-json\/wp\/v2\/posts\/373\/revisions"}],"predecessor-version":[{"id":379,"href":"https:\/\/xuemeng.work\/index.php\/wp-json\/wp\/v2\/posts\/373\/revisions\/379"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xuemeng.work\/index.php\/wp-json\/wp\/v2\/media\/381"}],"wp:attachment":[{"href":"https:\/\/xuemeng.work\/index.php\/wp-json\/wp\/v2\/media?parent=373"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xuemeng.work\/index.php\/wp-json\/wp\/v2\/categories?post=373"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xuemeng.work\/index.php\/wp-json\/wp\/v2\/tags?post=373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}