{"id":748,"date":"2024-07-25T15:48:54","date_gmt":"2024-07-25T07:48:54","guid":{"rendered":"https:\/\/aoofoo.com\/?p=748"},"modified":"2024-07-25T19:37:29","modified_gmt":"2024-07-25T11:37:29","slug":"2-21-ad%e5%8d%95-%e5%a4%9a%e9%80%9a%e9%81%93%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/aoofoo.com\/index.php\/2024\/07\/25\/2-21-ad%e5%8d%95-%e5%a4%9a%e9%80%9a%e9%81%93%e4%bb%a3%e7%a0%81\/","title":{"rendered":"2.21 AD\u5355\/\u591a\u901a\u9053\u4ee3\u7801"},"content":{"rendered":"

AD\u5355\u901a\u9053\u63a5\u7ebf\u56fe<\/h2>\n

\"\"<\/p>\n

PA0~7\uff0cpb0~1\u8fd910\u4e2a\u5f15\u811a\u662fADC\u768410\u4e2a\u901a\u9053\uff0c\u63a5\u5728\u54ea\u4e2a\u90fd\u884c\uff0c\u8fd9\u91cc\u6211\u4eec\u63a5\u7684\u662fPA0\u3002<\/p>\n

AD\u521d\u59cb\u5316\u6b65\u9aa4<\/h2>\n

\"\"<\/p>\n

\u7b2c\u4e00\u6b65\uff0c\u5f00\u542fRCC\u65f6\u949f\uff0c\u5305\u62ecADC\u548cGPIO\u65f6\u949f\u3002\u53e6\u5916ADCCLK\u7684\u5206\u9891\u5668\u4e5f\u9700\u8981\u914d\u7f6e\u4e00\u4e0b\u3002<\/p>\n

\u7b2c\u4e8c\u6b65\uff0c\u914d\u7f6eGPIO\uff0c\u628a\u9700\u8981\u7528\u7684GPIO\u914d\u7f6e\u6210\u6a21\u62df\u8f93\u5165\u6a21\u5f0f\u3002<\/p>\n

\u7b2c\u4e09\u6b65\uff0c\u914d\u7f6e\u591a\u8def\u5f00\u5173\uff0c\u628a\u5de6\u8fb9\u7684\u901a\u9053\u63a5\u5165\u5230\u53f3\u8fb9\u7684\u89c4\u5219\u7ec4\u5217\u8868\u91cc\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u5c31\u662f\u6211\u4eec\u4e4b\u524d\u8bf4\u7684\u70b9\u83dc\uff0c\u628a\u5404\u4e2a\u901a\u9053\u7684\u83dc\u5217\u5728\u83dc\u5355\u4e2d\u3002<\/p>\n

\u7b2c\u56db\u6b65\uff0c\u914d\u7f6eADC\u8f6c\u6362\u5668\u3002\u5728\u5e93\u51fd\u6570\u91cc\uff0c\u662f\u7528\u7ed3\u6784\u4f53\u6765\u914d\u7f6e\u7684\uff0c\u53ef\u4ee5\u914d\u7f6e\u8fd9\u4e00\u5927\u5757\u7535\u8def\u7684\u53c2\u6570\"\"\u3002\u5305\u62ecADC\u662f\u5355\u6b21\u8f6c\u6362\u8fd8\u662f\u8fde\u7eed\u8f6c\u6362\u3001\u626b\u63cf\u8fd8\u662f\u975e\u626b\u63cf\u3001\u6709\u51e0\u4e2a\u901a\u9053\u3001\u89e6\u53d1\u6e90\u662f\u4ec0\u4e48\u3001\u6570\u636e\u5bf9\u9f50\u662f\u5de6\u5bf9\u9f50\u8fd8\u6709\u53f3\u5bf9\u9f50\u8fd9\u4e9b\u53c2\u6570\u7528\u4e00\u4e2a\u7ed3\u6784\u4f53\u5c31\u53ef\u4ee5\u914d\u7f6e\u4e86\u3002<\/p>\n

\u7b2c\u4e94\u6b65\uff0c\u5982\u679c\u4f60\u9700\u8981\u6a21\u62df\u770b\u95e8\u72d7\uff0c\u6709\u51e0\u4e2a\u51fd\u6570\u53ef\u4ee5\u7528\u6765\u914d\u7f6e\u9608\u503c\u548c\u76d1\u6d4b\u901a\u9053\u3002<\/p>\n

\u7b2c\u516d\u6b65\uff0c\u5982\u679c\u4f60\u60f3\u8981\u5f00\u542f\u4e2d\u65ad\uff0c\u90a3\u5c31\u5728\u4e2d\u65ad\u8f93\u51fa\u63a7\u5236\u91cc\u7528ITConfig\u51fd\u6570\u5f00\u542f\u5bf9\u5e94\u7684\u4e2d\u65ad\u8f93\u51fa\uff0c\u518d\u5728NVIC\u91cc\u914d\u7f6e\u4e00\u4e0b\u4f18\u5148\u7ea7\uff0c\u8fd9\u6837\u5c31\u80fd\u89e6\u53d1\u4e2d\u65ad\u4e86\u3002<\/p>\n

\u7b2c\u4e03\u6b65\uff0c\u5f00\u5173\u63a7\u5236\u3002\u8c03\u7528\u4e00\u4e0bADC_Cmd\u51fd\u6570\uff0c\u5f00\u542fADC\u3002<\/p>\n

\u8fd9\u6837ADC\u5c31\u914d\u7f6e\u5b8c\u6210\u4e86\uff0c\u5c31\u80fd\u6b63\u5e38\u5de5\u4f5c\u4e86\uff0c\u5f53\u7136\u5728\u5f00\u542fADC\u4e4b\u540e\uff0c\u6839\u636e\u624b\u518c\u91cc\u7684\u5efa\u8bae\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u5bf9ADC\u8fdb\u884c\u4e00\u4e0b\u6821\u51c6\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u51cf\u5c0f\u8bef\u5dee\uff0c\u90a3\u5728ADC\u5de5\u4f5c\u7684\u65f6\u5019\uff0c\u5982\u679c\u60f3\u8981\u8f6f\u4ef6\u89e6\u53d1\u8f6c\u6362\uff0c\u90a3\u4f1a\u6709\u51fd\u6570\u53ef\u4ee5\u89e6\u53d1\u3002\u5982\u679c\u60f3\u8981\u8bfb\u53d6\u8f6c\u6362\u7ed3\u679c\uff0c\u90a3\u4e5f\u4f1a\u6709\u51fd\u6570\u53ef\u4ee5\u8bfb\u53d6\u7ed3\u679c\u3002<\/p>\n

ADC\u76f8\u5173\u5e93\u51fd\u6570<\/h3>\n
<\/svg>ADCCLK\u914d\u7f6e\u51fd\u6570<\/div>
<\/p>\n

\u8fd9\u4e2a\u5e93\u51fd\u6570\u662f\u5728RCC\u4e2d\u7684\uff0cvoid RCC_ADCCLKConfig(uint32_t RCC_PCLK2);<\/p>\n

\u8fd9\u4e2a\u51fd\u6570\u662f\u7528\u6765\u914d\u7f6eADCCLK\u5206\u9891\u5668\u7684\uff0c\u4ed6\u53ef\u4ee5\u5bf9APB2\u768472MHz\u65f6\u949f\u9009\u62e92\u30014\u30016\u30018\u5206\u9891\uff0c\u8f93\u5165\u5230ADCCLK\u3002<\/p>\n

* @arg RCC_PCLK2_Div2: ADC clock = PCLK2\/2
\n* @arg RCC_PCLK2_Div4: ADC clock = PCLK2\/4
\n* @arg RCC_PCLK2_Div6: ADC clock = PCLK2\/6
\n* @arg RCC_PCLK2_Div8: ADC clock = PCLK2\/8<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u521d\u59cb\u5316\u51fd\u6570<\/div>
<\/p>\n

void ADC_DeInit(ADC_TypeDef* ADCx); \/\/\u6062\u590d\u7f3a\u7701\u914d\u7f6e\uff08\u9ed8\u8ba4\u914d\u7f6e\uff09
\nvoid ADC_Init(ADC_TypeDef* ADCx, ADC_InitTypeDef* ADC_InitStruct);\/\/Init\u521d\u59cb\u5316
\nvoid ADC_StructInit(ADC_InitTypeDef* ADC_InitStruct);\/\/\u7ed3\u6784\u4f53\u521d\u59cb\u5316\u3002<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u4e0a\u7535\u51fd\u6570\uff08\u5f00\u5173\u63a7\u5236\uff09<\/div>
<\/p>\n

void ADC_Cmd(ADC_TypeDef* ADCx, FunctionalState NewState);<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>\u5f00\u542fDMA\u8f93\u51fa\u4fe1\u53f7<\/div>
<\/p>\n

void ADC_DMACmd(ADC_TypeDef* ADCx, FunctionalState NewState);<\/p>\n

\u5982\u679c\u4f7f\u7528DMA\u8f6c\u8fd0\u6570\u636e\uff0c\u90a3\u5c31\u5f97\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\uff0c\u8fd9\u4e2a\u6211\u4eec\u4e0b\u8282\u8bb2DAM\u7684\u65f6\u5019\u7528\u3002<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u4e2d\u65ad\u8f93\u51fa\u63a7\u5236<\/div>
<\/p>\n

void ADC_ITConfig(ADC_TypeDef* ADCx, uint16_t ADC_IT, FunctionalState NewState);<\/p>\n

\u7528\u4e8e\u63a7\u5236\u67d0\u4e2a\u4e2d\u65ad\u80fd\u4e0d\u80fd\u901a\u5f80NVIC\u3002<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u7528\u4e8e\u63a7\u5236\u6821\u51c6\u7684\u51fd\u6570<\/div>
<\/p>\n

void ADC_ResetCalibration(ADC_TypeDef* ADCx);\/\/\u590d\u4f4d\u6821\u51c6
\nFlagStatus ADC_GetResetCalibrationStatus(ADC_TypeDef* ADCx);\/\/\u83b7\u53d6\u590d\u4f4d\u6821\u51c6\u72b6\u6001
\nvoid ADC_StartCalibration(ADC_TypeDef* ADCx);\/\/\u5f00\u542f\u6821\u51c6
\nFlagStatus ADC_GetCalibrationStatus(ADC_TypeDef* ADCx);\/\/\u83b7\u53d6\u5f00\u542f\u6821\u51c6\u72b6\u6001<\/p>\n

\u6211\u4eec\u5728ADC\u521d\u59cb\u5316\u5b8c\u6210\u4e4b\u540e\uff0c\u4f9d\u6b21\u8c03\u7528\u5c31\u884c\u4e86\u3002<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u8f6f\u4ef6\u89e6\u53d1<\/div>
<\/p>\n

void ADC_SoftwareStartConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState);<\/p>\n

\u8c03\u7528\u4e00\u4e0b\uff0c\u5c31\u80fd\u8f6f\u4ef6\u89e6\u53d1\u8f6c\u6362\u4e86\u3002\u6211\u4eec\u8fd9\u4e2a\u4ee3\u7801\u76ee\u524d\u4f7f\u7528\u8f6f\u4ef6\u89e6\u53d1\u3002<\/p>\n

\n

FlagStatus ADC_GetSoftwareStartConvStatus(ADC_TypeDef* ADCx);\/\/ADC\u83b7\u53d6\u8f6f\u4ef6\u5f00\u59cb\u8f6c\u6362\u72b6\u6001<\/p>\n

\u4ece\u540d\u5b57\u4e0a\u6765\u770b\uff0c\u8fd9\u4e2a\u51fd\u6570\u597d\u50cf\u662f\u5224\u65ad\u8f6c\u6362\u662f\u4e0d\u662f\u6b63\u5728\u8fdb\u884c\u7684\u3002\u90a3\u6211\u4eec\u662f\u4e0d\u662f\u53ef\u4ee5\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\uff0c\u6765\u5224\u65ad\u8f6c\u6362\u662f\u5426\u5df2\u7ecf\u7ed3\u675f\u5462\uff1f\u4f46\u662f\u4e0d\u884c\u7684\u3002\u8fd9\u4e2a\u51fd\u6570\u5c31\u662f\u7528\u6765\u83b7\u53d6CR2\u7684SWSTART\u8fd9\u4e00\u4f4d\u7684\uff0c\u5bf9\u7167\u624b\u518c\u7684\u5bc4\u5b58\u5668\u63cf\u8ff0\uff0c\u8fd9\u4e00\u4f4d\u7684\u4f5c\u7528\u662f\u5f00\u59cb\u8f6c\u6362\u89c4\u5219\u901a\u9053\u3002\u7531\u8f6f\u4ef6\u8bbe\u7f6e\u8be5\u4f4d\u4ee5\u542f\u52a8\u8f6c\u6362\uff0c\u8f6c\u6362\u5f00\u59cb\u540e\u786c\u4ef6\u9a6c\u4e0a\u6e05\u9664\u6b64\u4f4d\u3002<\/p>\n

\u6240\u4ee5ADC_SoftwareStartConvCmd\u51fd\u6570\u5c31\u662f\u7ed9SWSTART\u4f4d\u7f6e1\uff0c\u4ee5\u5f00\u59cb\u8f6c\u6362\u7684\uff0cADC_GetSoftwareStartConvStatus\u51fd\u6570\u662f\u8fd4\u56deSWSTART\u4f4d\u7684\u72b6\u6001\u3002\u7531\u4e8eSWSTART\u4f4d\u5728\u8f6c\u6362\u5f00\u59cb\u540e\u7acb\u523b\u6e05\u96f6\uff0c\u6240\u4ee5\u8fd9\u4e2a\u51fd\u6570\u7684\u8fd4\u56de\u503c\u8ddf\u8f6c\u6362\u662f\u5426\u7ed3\u675f\u6beb\u65e0\u5173\u7cfb\u3002<\/p>\n

\n

\u90a3\u5982\u4f55\u77e5\u9053\u8f6c\u6362\u662f\u5426\u7ed3\u675f\u5462\uff1f\u6211\u4eec\u9700\u8981\u7528\u5230\u4e0b\u9762\u8fd9\u4e2a\u51fd\u6570\u3002<\/p>\n

FlagStatus ADC_GetFlagStatus(ADC_TypeDef* ADCx, uint8_t ADC_FLAG);\/\/\u83b7\u53d6\u6807\u5fd7\u4f4d\u72b6\u6001\u3002<\/p>\n

\u53c2\u6570\u7ed9EOC\u7684\u6807\u5fd7\u4f4d\uff0c\u5224\u65adEOC\u6807\u5fd7\u4f4d\u662f\u4e0d\u662f\u7f6e1\u4e86\u3002<\/p>\n

\u5982\u679c\u8f6c\u6362\u7ed3\u675fEOC\u6807\u5fd7\u4f4d\u7f6e1\uff0c\u7136\u540e\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\uff0c\u5224\u65ad\u6807\u5fd7\u4f4d\uff0c\u8fd9\u6837\u624d\u662f\u6b63\u786e\u7684\u5224\u65ad\u8f6c\u6362\u662f\u5426\u7ed3\u675f\u7684\u65b9\u6cd5\u3002<\/p>\n

\u6240\u4ee5\u7b80\u5355\u6765\u8bf4\uff0c\u4e0a\u9762\u8bf4\u7684\u201cADC\u83b7\u53d6\u8f6f\u4ef6\u5f00\u59cb\u8f6c\u6362\u72b6\u6001\u201d\u51fd\u6570\u6ca1\u5565\u7528\uff0c\u6211\u4eec\u4e00\u822c\u4e5f\u4e0d\u7528\uff0c\u6240\u4ee5\u4e0d\u8981\u88ab\u8bef\u5bfc\u4e86\u3002<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u914d\u7f6e\u95f4\u65ad\u6a21\u5f0f<\/div>
<\/p>\n

void ADC_DiscModeChannelCountConfig(ADC_TypeDef* ADCx, uint8_t Number);
\nvoid ADC_DiscModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState);<\/p>\n

\u7b2c\u4e00\u4e2a\u51fd\u6570\u662f\uff0c\u6bcf\u9694\u51e0\u4e2a\u901a\u9053\u5c31\u95f4\u65ad\u4e00\u6b21\u3002<\/p>\n

\u7b2c\u4e8c\u4e2a\u51fd\u6570\u662f\uff0c\u662f\u4e0d\u662f\u542f\u7528\u95f4\u65ad\u6a21\u5f0f\u3002<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u89c4\u5219\u7ec4\u901a\u9053\u914d\u7f6e<\/div>
<\/p>\n

void ADC_RegularChannelConfig(ADC_TypeDef* ADCx, uint8_t ADC_Channel, uint8_t Rank, uint8_t ADC_SampleTime);<\/p>\n

\u8fd9\u4e2a\u51fd\u6570\u6bd4\u8f83\u91cd\u8981\uff0c\u5b83\u7684\u4f5c\u7528\u5c31\u662f\u7ed9\u5e8f\u5217\u7684\u6bcf\u4e2a\u4f4d\u7f6e\u586b\u5199\u6307\u5b9a\u7684\u901a\u9053\"\"\u3002<\/p>\n

\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u9009\u62e9ADC\u3002<\/p>\n

\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u6307\u5b9a\u7684\u901a\u9053\u3002<\/p>\n

\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u5e8f\u5217\u51e0\u7684\u4f4d\u7f6e\u3002<\/p>\n

\u7b2c\u56db\u4e2a\u53c2\u6570\u662f\u6307\u5b9a\u901a\u9053\u7684\u91c7\u6837\u65f6\u95f4\u3002<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u5916\u90e8\u89e6\u53d1\u8f6c\u6362\u63a7\u5236<\/div>
<\/p>\n

void ADC_ExternalTrigConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState);<\/p>\n

\u5c31\u662f\u662f\u5426\u5141\u8bb8\u5916\u90e8\u89e6\u53d1\u8f6c\u6362\u3002<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u83b7\u53d6\u8f6c\u6362\u503c<\/div>
<\/p>\n

uint16_t ADC_GetConversionValue(ADC_TypeDef* ADCx);<\/p>\n

\u5c31\u662f\u83b7\u53d6AD\u8f6c\u6362\u7684\u6570\u636e\u5bc4\u5b58\u5668\uff0c\u8bfb\u53d6\u8f6c\u6362\u7ed3\u679c\u5c31\u8981\u4f7f\u7528\u8fd9\u4e2a\u51fd\u6570\u3002<\/p>\n

uint32_t ADC_GetDualModeConversionValue(void);<\/p>\n

ADC\u83b7\u53d6\u53cc\u6a21\u5f0f\u8f6c\u6362\u503c\uff0c\u8fd9\u4e2a\u662f\u53ccADC\u6a21\u5f0f\u8bfb\u53d6\u8f6c\u6362\u7ed3\u679c\u7684\u51fd\u6570\u3002<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u6a21\u62df\u770b\u95e8\u72d7\u914d\u7f6e<\/div>
<\/p>\n

\/\/\u662f\u5426\u542f\u52a8\u6a21\u62df\u770b\u95e8\u72d7<\/p>\n

void ADC_AnalogWatchdogCmd(ADC_TypeDef* ADCx, uint32_t ADC_AnalogWatchdog);<\/p>\n

\/\/\u914d\u7f6e\u9ad8\u4f4e\u9608\u503c\u3002<\/p>\n

void ADC_AnalogWatchdogThresholdsConfig(ADC_TypeDef* ADCx, uint16_t HighThreshold, uint16_t LowThreshold);<\/p>\n

\/\/\u914d\u7f6e\u770b\u95e8\u7684\u901a\u9053\u3002
\nvoid ADC_AnalogWatchdogSingleChannelConfig(ADC_TypeDef* ADCx, uint8_t ADC_Channel);<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u6e29\u5ea6\u4f20\u611f\u5668\u3001\u5185\u90e8\u53c2\u8003\u7535\u538b\u63a7\u5236<\/div>
<\/p>\n

void ADC_TempSensorVrefintCmd(FunctionalState NewState);<\/p>\n

\u8fd9\u4e2a\u662f\u7528\u6765\u5f00\u542f\u5185\u90e8\u7684\u4e24\u4e2a\u901a\u9053\u7684\uff0c\u5982\u679c\u4f60\u8981\u7528\u8fd9\u4e24\u4e2a\u901a\u9053\uff0c\u5f97\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\uff0c\u5f00\u542f\u4e00\u4e0b\u3002\u8981\u4e0d\u7136 \u662f\u8bfb\u4e0d\u5230\u6b63\u786e\u7684\u7ed3\u679c\u7684\u3002<\/p>\n

<\/div><\/div><\/div>\n

<\/svg>ADC\u4e2d\u65ad\u76f8\u5173\u51fd\u6570<\/div>
<\/p>\n

\/\/\u83b7\u53d6\u6807\u5fd7\u4f4d\u72b6\u6001<\/p>\n

FlagStatus ADC_GetFlagStatus(ADC_TypeDef* ADCx, uint8_t ADC_FLAG);<\/p>\n

\/\/\u6e05\u9664\u6807\u5fd7\u4f4d
\nvoid ADC_ClearFlag(ADC_TypeDef* ADCx, uint8_t ADC_FLAG);<\/p>\n

\/\/\u83b7\u53d6\u4e2d\u65ad\u72b6\u6001
\nITStatus ADC_GetITStatus(ADC_TypeDef* ADCx, uint16_t ADC_IT);<\/p>\n

\/\/\u6e05\u9664\u4e2d\u65ad\u6302\u8d77\u4f4d
\nvoid ADC_ClearITPendingBit(ADC_TypeDef* ADCx, uint16_t ADC_IT);<\/p>\n

<\/div><\/div><\/div>\n

ADC\u5355\u901a\u9053\u4ee3\u7801<\/h3>\n
void AD_Init()\r\n{\r\n\t\/\/\u5f00\u542f\u65f6\u949f\r\n\tRCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);\r\n\tRCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1,ENABLE);\r\n\t\r\n\t\/\/\u914d\u7f6eADCCLK\uff0c6\u5206\u9891\uff0cADCCLK = 72MHz\/6= 12MHz\r\n\tRCC_ADCCLKConfig(RCC_PCLK2_Div6);\r\n\t\r\n\t\/\/\u914d\u7f6eGPIO\uff0c\u521d\u59cb\u5316PA0\u5f15\u811a\r\n\tGPIO_InitTypeDef GPIO_InitStructure;\r\n\tGPIO_InitStructure.GPIO_Mode=GPIO_Mode_AIN;\/\/\u6a21\u62df\u8f93\u5165\r\n\t\/*\u5728AIN\u6a21\u5f0f\u4e0b\uff0cGPIO\u53e3\u662f\u65e0\u6548\u7684\uff0c\u65ad\u5f00GPIO\u9632\u6b62GPIO\u53e3\u7684\u8f93\u5165\u8f93\u51fa\u5bf9\u6a21\u62df\u7535\u538b\u9020\u6210\u5e72\u6270\u3002\r\n\t\t\u6240\u4ee5AIN\u6a21\u5f0f\u662fADC\u7684\u4e13\u5c5e\u6a21\u5f0f\u3002*\/\r\n\tGPIO_InitStructure.GPIO_Pin=GPIO_Pin_0;\r\n\tGPIO_Init(GPIOA,&GPIO_InitStructure); \r\n\t\r\n\t\/\/\u9009\u62e9\u89c4\u5219\u7ec4\u7684\u8f93\u5165\u901a\u9053\u3002\u91c7\u6837\u65f6\u95f4\u662f55.5\u4e2aADC\u5468\u671f\u3002\r\n\t\/\/\u8fd9\u4e2a\u51fd\u6570\u7684\u610f\u601d\u662f\uff0c\u5728\u89c4\u5219\u7ec4\u5e8f\u52171\u7684\u4f4d\u7f6e\u653e\u5165\u901a\u90530\uff0c\u91c7\u6837\u65f6\u95f4\u662f55.5\u4e2aADC\u5468\u671f\u3002\r\n\tADC_RegularChannelConfig(ADC1,ADC_Channel_0,1,ADC_SampleTime_55Cycles5);\r\n\t\r\n\t\/\/\u914d\u7f6eADC\r\n\tADC_InitTypeDef ADC_InitStruct;\t\r\n\t\t\/\/ADC\u5de5\u4f5c\u6a21\u5f0f\uff0c\u914d\u7f6e\u72ec\u7acb\u6a21\u5f0f\u6216\u8005\u53ccADC\u6a21\u5f0f\u3002\r\n\tADC_InitStruct.ADC_Mode=ADC_Mode_Independent; \r\n\t\t\/\/\u6570\u636e\u5bf9\u9f50\uff0c\u9009\u62e9\u53f3\u5bf9\u9f50\u3002\r\n\tADC_InitStruct.ADC_DataAlign=ADC_DataAlign_Right;\t\r\n\t\t\/\/\u5916\u90e8\u89e6\u53d1\u8f6c\u6362\u9009\u62e9\uff0c\u5c31\u662f\u89e6\u53d1\u63a7\u5236\u7684\u89e6\u53d1\u6e90\u3002\r\n\t\t\/\/\u9009\u62e9\u4e0d\u662f\u4f7f\u7528\u5916\u90e8\u89e6\u53d1\uff0c\u5c31\u662f\u8f6f\u4ef6\u89e6\u53d1\u7684\u610f\u601d\u3002\r\n\tADC_InitStruct.ADC_ExternalTrigConv=ADC_ExternalTrigConv_None;\r\n\t\t\/\/\u8fde\u7eed\u8f6c\u6362\u6a21\u5f0f\uff0c\u9009\u62e9\u8fde\u7eed\u8f6c\u6362\u8fd8\u662f\u5355\u6b21\u8f6c\u6362\u3002\r\n\tADC_InitStruct.ADC_ContinuousConvMode=DISABLE;\r\n\t\t\/\/\u626b\u63cf\u8f6c\u6362\u6a21\u5f0f\uff0c\u9009\u62e9\u626b\u63cf\u6a21\u5f0f\u8fd8\u662f\u975e\u626b\u63cf\u6a21\u5f0f\u3002\r\n\tADC_InitStruct.ADC_ScanConvMode=DISABLE;\r\n\t\t\/\/\u901a\u9053\u6570\u76ee\uff0c\u6307\u5b9a\u5728\u626b\u63cf\u6a21\u5f0f\u4e0b\uff0c\u603b\u5171\u4f1a\u7528\u51e0\u4e2a\u901a\u9053\u3002\r\n\t\t\/*\u5176\u5b9e\u8fd9\u4e2a\u53c2\u6570\u53ea\u5728\u626b\u63cf\u6a21\u5f0f\u4e0b\u624d\u9700\u8981\u7528\uff0c\r\n\t\t\u5982\u679c\u662f\u975e\u626b\u63cf\u6a21\u5f0f\uff0c\u90a3\u6574\u4e2a\u5217\u8868\u53ea\u6709\u7b2c\u4e00\u4e2a\u5e8f\u5217\u6709\u7528*\/\r\n\tADC_InitStruct.ADC_NbrOfChannel=1;\r\n\t\r\n\tADC_Init(ADC1,&ADC_InitStruct);\r\n\t\r\n\t\/\/\u5f00\u542fADC\u7535\u6e90\r\n\tADC_Cmd(ADC1,ENABLE);\r\n\t\r\n\t\/\/ADC\u6821\u51c6\r\n\tADC_ResetCalibration(ADC1);\/\/\u590d\u4f4d\u6821\u51c6\r\n\t\/*\u83b7\u53d6\u590d\u4f4d\u6821\u51c6\u72b6\u6001\uff0c\u6240\u4ee5\u5982\u679c\u8981\u7b49\u5f85\u590d\u4f4d\u5b8c\u6210\u7684\u8bdd\uff0c\r\n\t\u8fd8\u9700\u8981\u52a0\u4e2awhile\u5faa\u73af\uff0c\u5982\u679c\u6ca1\u6709\u6821\u51c6\u5b8c\u6210\uff0c\u5c31\u5728\u8fd9\u4e2awhile\u7a7a\u5faa\u73af\u91cc\u4e00\u76f4\u7b49\u5f85\u3002*\/\r\n\twhile(ADC_GetResetCalibrationStatus(ADC1) == SET);\r\n\tADC_StartCalibration(ADC1);\/\/\u5f00\u542f\u6821\u51c6\r\n\twhile(ADC_GetCalibrationStatus(ADC1) == SET);\/\/\u7b49\u5f85\u6821\u51c6\u662f\u5426\u5b8c\u6210\u4e86\u3002\r\n\t\r\n}<\/code><\/pre>\n
\u901a\u8fc7\u4e0a\u9762\u7684\u4ee3\u7801\u3002\u6211\u4eec\u7684ADC\u5c31\u5904\u4e8e\u51c6\u5907\u5c31\u7eea\u7684\u72b6\u6001\u4e86\uff0c\u90a3\u6211\u4eec\u60f3\u8981\u542f\u52a8\u8f6c\u6362\uff0c\u83b7\u53d6\u7ed3\u679c\uff0c\u5c31\u53ef\u4ee5\u5728\u4e0b\u9762\u518d\u5199\u4e00\u4e2a\u83b7\u53d6\u7ed3\u679c\u7684\u51fd\u6570\u3002<\/p>\n
\u9996\u5148\uff0c\u8f6f\u4ef6\u89e6\u53d1\u8f6c\u6362\uff0c\u7136\u540e\u7b49\u5f85\u8f6c\u6362\u5b8c\u6210\uff0c\u4e5f\u5c31\u662f\u7b49\u5f85EOC\u6807\u5fd7\u4f4d\u7f6e1\uff0c\u6700\u540e\u8bfb\u53d6ADC\u6570\u636e\u5bc4\u5b58\u5668\uff0c\u5c31\u5b8c\u4e8b\u4e86\u3002<\/p>\n
uint16_t AD_GetValue()\r\n{\r\n\t\/\/\u8f6f\u4ef6\u89e6\u53d1\u7684\u51fd\u6570,ADC\u5f00\u542f\u8fdb\u884c\u8f6c\u6362\u3002\r\n\tADC_SoftwareStartConvCmd(ADC1, ENABLE);\r\n\t\/\/\u83b7\u53d6\u6807\u5fd7\u4f4d\u51fd\u6570\u67e5\u770bADC\u662f\u5426\u8f6c\u6362\u5b8c\u6210\uff0c\u8f6c\u5316\u5b8c\u6210\u540eEOC\u7531\u786c\u4ef6\u81ea\u52a8\u7f6e1\uff0c\u5c31\u8df3\u51fa\u5faa\u73af\u4e86\u3002\r\n\t\/*\u5177\u4f53\u8981\u7b49\u5f85\u591a\u957f\u65f6\u95f4\u5462\uff1f\u6211\u4eec\u521a\u624d\u914d\u7f6e\u4e86\u91c7\u6837\u5468\u671f\u662f55.5\uff0c\u8f6c\u6362\u5468\u671f\u662f\u56fa\u5b9a\u768412.5\uff0c\r\n\t\t\u52a0\u8d77\u6765\u4e00\u5171\u662f68\u4e2aADC\u5468\u671f\uff0cADC\u9891\u7387\u662f12MHz\uff0c\u6362\u7b97\u662f5.67us*\/\r\n\twhile(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET);\r\n\t\/\/\u8f6c\u5316\u5b8c\u6210\u540e\u8fd4\u56de\u8f6c\u6362\u503c\u3002\r\n\treturn ADC_GetConversionValue(ADC1);\r\n\t\/\/\u8fd9\u91cc\u8bfb\u53d6\u6570\u636e\u5bc4\u5b58\u5668\uff0c\u4f1a\u81ea\u52a8\u6e05\u9664EOC\u7684\u6807\u5fd7\u4f4d\uff0c\u6240\u4ee5\u4e0d\u9700\u8981\u518d\u624b\u52a8\u6e05\u9664\u6807\u5fd7\u4f4d\u4e86\u3002\r\n}<\/code><\/pre>\n
\u4e3b\u51fd\u6570\u4ee3\u7801\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a<\/p>\n
uint16_t ADvalu;\r\nint main(void){\r\n\tOLED_Init();\r\n\tAD_Init();\r\n\tOLED_ShowString(1,6,\"AOOFOO\");\/\/\u5b57\u7b26\u4e32\r\n\tOLED_ShowString(2,1,\"ADvalu:\");\/\/\u5b57\u7b26\u4e32\r\n\twhile(1)\r\n\t{\r\n\t\tADvalu = AD_GetValue();\r\n\t\tOLED_ShowNum(2,9,ADvalu,4); \/\/\u5341\u8fdb\u5236\u65e0\u7b26\u53f7\u6570\r\n\t}\r\n}<\/code><\/pre>\n
\u4e0b\u8f7d\u5230STM32\u4e2d\u4f1a\u53d1\u73b0\uff0cAD\u503c\u7684\u672b\u5c3e\u4f1a\u6709\u4e9b\u6296\u52a8\uff0c\u8fd9\u662f\u6b63\u5e38\u7684\u6ce2\u52a8\u3002<\/p>\n
\u4f46\u662f\u5982\u679c\u4f60\u60f3\u5bf9\u8fd9\u4e2a\u503c\u8fdb\u884c\u5224\u65ad\uff0c\u518d\u6267\u884c\u4e00\u4e9b\u64cd\u4f5c\u3002\u6bd4\u5982\u5149\u7ebf\u7684AD\u503c\u5c0f\u4e8e\u67d0\u4e00\u9608\u503c\uff0c\u5c31\u5f00\u706f\uff0c\u5927\u4e8e\u67d0\u4e00\u9608\u503c\uff0c\u5c31\u5173\u706f\uff0c\u90a3\u53ef\u80fd\u4f1a\u5b58\u5728\u8fd9\u6837\u7684\u60c5\u51b5\uff0c\u6bd4\u5982\u5149\u7ea4\u9010\u6e10\u53d8\u6697\uff0cAD\u503c\u9010\u6e10\u53d8\u5c0f\uff0c\u4f46\u662f\u7531\u4e8e\u6ce2\u52a8\uff0cAD\u503c\u4f1a\u5728\u5224\u65ad\u9608\u503c\u9644\u8fd1\u6765\u56de\u8df3\u53d8\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u8f93\u51fa\u4ea7\u751f\u6296\u52a8\uff0c\u6765\u56de\u5f00\u706f\u5173\u706f\u3002<\/p>\n
\u90a3\u5982\u4f55\u907f\u514dAD\u503c\u6ce2\u52a8\u5462\uff1f<\/p>\n
\u8fd9\u4e2a\u53ef\u4ee5\u4f7f\u7528\u8fdf\u6ede\u6bd4\u8f83\u7684\u65b9\u6cd5\u6765\u5b8c\u6210\uff0c\u8bbe\u7f6e\u4e24\u4e2a\u9608\u503c\uff0c\u4f4e\u4e8e\u4e0b\u9608\u503c\u65f6\u5f00\u706f\uff0c\u9ad8\u4e8e\u4e0a\u9608\u503c\u65f6\u624d\u5173\u706f\uff0c\u8fd9\u5c31\u53ef\u4ee5\u907f\u514d\u8f93\u51fa\u6296\u52a8\u95ee\u9898\u4e86\u3002\u8fd9\u4e2a\u8ddf\u6211\u4eecGPIO\u90a3\u4e00\u8282\u8bb2\u7684\u65bd\u5bc6\u7279\u89e6\u53d1\u5668\u662f\u4e00\u4e2a\u539f\u7406\u3002\u53e6\u5916\uff0c\u5982\u679c\u4f60\u89c9\u7684\u6570\u636e\u8df3\u53d8\u592a\u5389\u5bb3\uff0c\u8fd8\u53ef\u4ee5\u91c7\u7528\u6ee4\u6ce2\u7684\u65b9\u6cd5\uff0c\u8ba9AD\u503c\u5e73\u6ed1\u4e00\u4e9b\uff0c\u6bd4\u5982\u5747\u503c\u6ee4\u6ce2\uff0c\u5c31\u662f\u8bfb10\u4e2a\u6216\u800520\u4e2a\u6570\uff0c\u53d6\u5e73\u5747\u503c\uff0c\u4f5c\u4e3a\u6ee4\u6ce2\u7684AD\u503c\u3002\u6216\u8005\u8fd8\u53ef\u4ee5\u88c1\u526a\u5206\u8fa8\u7387\uff0c\u628a\u6570\u636e\u7684\u5c3e\u6570\u53bb\u6389\uff0c\u8fd9\u6837\u4e5f\u53ef\u4ee5\u51cf\u5c11\u6570\u636e\u6ce2\u52a8\u3002<\/p>\n
\u5982\u679c\u60f3\u8981\u663e\u793a\u5b9e\u9645\u7684\u7535\u538b\u503c\u600e\u4e48\u529e\u5462\uff1f<\/p>\n
\u8fd9\u53ea\u9700\u8981\u5bf9\u8fd9\u4e2a\u6570\u636e\u8fdb\u884c\u4e00\u4e2a\u7ebf\u6027\u53d8\u6362\u5c31\u884c\u4e86\uff1a<\/p>\n
uint16_t ADvalu;\r\nfloat Voltage;\r\nint main(void){\r\n\tOLED_Init();\r\n\tAD_Init();\r\n\tOLED_ShowString(1,6,\"AOOFOO\");\/\/\u5b57\u7b26\u4e32\r\n\tOLED_ShowString(2,1,\"ADvalu:\");\/\/\u5b57\u7b26\u4e32\r\n\tOLED_ShowString(3,1,\"Voltage:0.00V\");\/\/\u5b57\u7b26\u4e32\r\n\twhile(1)\r\n\t{\r\n\t\tADvalu = AD_GetValue();\r\n\t\tVoltage = ((float)ADvalu\/4095)*3.3;\r\n\t\tOLED_ShowNum(2,9,ADvalu,4); \/\/\u5341\u8fdb\u5236\u65e0\u7b26\u53f7\u6570\r\n\t\tOLED_ShowNum(3,9,Voltage,1); \/\/\u5341\u8fdb\u5236\u65e0\u7b26\u53f7\u6570\r\n\t\tOLED_ShowNum(3,11,(uint16_t)(Voltage*100)%100,2); \/\/\u5341\u8fdb\u5236\u65e0\u7b26\u53f7\u6570\r\n\t}\r\n}<\/code><\/pre>\n
\u4e0a\u9762\u8fd9\u4e9b\u4ee3\u7801\u6211\u4eec\u4f7f\u7528\u7684\u662f\u5355\u6b21\u8f6c\u6362\u975e\u626b\u63cf\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528\u8fde\u7eed\u8f6c\u6362\u975e\u626b\u63cf\u3002\u8fd9\u4e2a\u6a21\u5f0f\u7684\u597d\u5904\u5c31\u662f\u4e0d\u9700\u8981\u4e0d\u65ad\u7684\u89e6\u53d1\uff0c\u5c31\u662f\u4e3b\u51fd\u6570\u4e0d\u7528\u518d\u4e00\u76f4\u5faa\u73af\u8c03\u7528AD\u7684\u503c\uff0c\u4e5f\u4e0d\u9700\u8981\u7b49\u5f85\u8f6c\u6362\u5b8c\u6210\uff0c\u4e0b\u9762\u7ed9\u5927\u5bb6\u6f14\u793a\u4e00\u4e0b\uff1a<\/p>\n
<\/svg>\u8fde\u7eed\u8f6c\u6362\u975e\u626b\u63cf\u6a21\u5f0f\u4ee3\u7801<\/div>
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void AD_Init()\r\n{\r\n\t\/\/\u5f00\u542f\u65f6\u949f\r\n\tRCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);\r\n\tRCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1,ENABLE);\r\n\t\r\n\t\/\/\u914d\u7f6eADCCLK\uff0c6\u5206\u9891\uff0cADCCLK = 72MHz\/6= 12MHz\r\n\tRCC_ADCCLKConfig(RCC_PCLK2_Div6);\r\n\t\r\n\t\/\/\u914d\u7f6eGPIO\uff0c\u521d\u59cb\u5316PA0\u5f15\u811a\r\n\tGPIO_InitTypeDef GPIO_InitStructure;\r\n\tGPIO_InitStructure.GPIO_Mode=GPIO_Mode_AIN;\/\/\u6a21\u62df\u8f93\u5165\r\n\t\/*\u5728AIN\u6a21\u5f0f\u4e0b\uff0cGPIO\u53e3\u662f\u65e0\u6548\u7684\uff0c\u65ad\u5f00GPIO\u9632\u6b62GPIO\u53e3\u7684\u8f93\u5165\u8f93\u51fa\u5bf9\u6a21\u62df\u7535\u538b\u9020\u6210\u5e72\u6270\u3002\r\n\t\t\u6240\u4ee5AIN\u6a21\u5f0f\u662fADC\u7684\u4e13\u5c5e\u6a21\u5f0f\u3002*\/\r\n\tGPIO_InitStructure.GPIO_Pin=GPIO_Pin_0;\r\n\tGPIO_Init(GPIOA,&GPIO_InitStructure); \r\n\t\r\n\t\/\/\u9009\u62e9\u89c4\u5219\u7ec4\u7684\u8f93\u5165\u901a\u9053\u3002\u91c7\u6837\u65f6\u95f4\u662f55.5\u4e2aADC\u5468\u671f\u3002\r\n\t\/\/\u8fd9\u4e2a\u51fd\u6570\u7684\u610f\u601d\u662f\uff0c\u5728\u89c4\u5219\u7ec4\u5e8f\u52171\u7684\u4f4d\u7f6e\u653e\u5165\u901a\u90530\uff0c\u91c7\u6837\u65f6\u95f4\u662f55.5\u4e2aADC\u5468\u671f\u3002\r\n\tADC_RegularChannelConfig(ADC1,ADC_Channel_0,1,ADC_SampleTime_55Cycles5);\r\n\t\r\n\t\/\/\u914d\u7f6eADC\r\n\tADC_InitTypeDef ADC_InitStruct;\t\r\n\t\t\/\/ADC\u5de5\u4f5c\u6a21\u5f0f\uff0c\u914d\u7f6e\u72ec\u7acb\u6a21\u5f0f\u6216\u8005\u53ccADC\u6a21\u5f0f\u3002\r\n\tADC_InitStruct.ADC_Mode=ADC_Mode_Independent; \r\n\t\t\/\/\u6570\u636e\u5bf9\u9f50\uff0c\u9009\u62e9\u53f3\u5bf9\u9f50\u3002\r\n\tADC_InitStruct.ADC_DataAlign=ADC_DataAlign_Right;\t\r\n\t\t\/\/\u5916\u90e8\u89e6\u53d1\u8f6c\u6362\u9009\u62e9\uff0c\u5c31\u662f\u89e6\u53d1\u63a7\u5236\u7684\u89e6\u53d1\u6e90\u3002\r\n\t\t\/\/\u9009\u62e9\u4e0d\u662f\u4f7f\u7528\u5916\u90e8\u89e6\u53d1\uff0c\u5c31\u662f\u8f6f\u4ef6\u89e6\u53d1\u7684\u610f\u601d\u3002\r\n\tADC_InitStruct.ADC_ExternalTrigConv=ADC_ExternalTrigConv_None;\r\n\t\t\/\/\u8fde\u7eed\u8f6c\u6362\u6a21\u5f0f\uff0c\u9009\u62e9\u8fde\u7eed\u8f6c\u6362\u8fd8\u662f\u5355\u6b21\u8f6c\u6362\u3002\r\n\tADC_InitStruct.ADC_ContinuousConvMode=ENABLE;\r\n\t\t\/\/\u626b\u63cf\u8f6c\u6362\u6a21\u5f0f\uff0c\u9009\u62e9\u626b\u63cf\u6a21\u5f0f\u8fd8\u662f\u975e\u626b\u63cf\u6a21\u5f0f\u3002\r\n\tADC_InitStruct.ADC_ScanConvMode=DISABLE;\r\n\t    \/\/\u901a\u9053\u6570\u76ee\uff0c\u6307\u5b9a\u5728\u626b\u63cf\u6a21\u5f0f\u4e0b\uff0c\u603b\u5171\u4f1a\u7528\u51e0\u4e2a\u901a\u9053\u3002\r\n\t\t\/*\u5176\u5b9e\u8fd9\u4e2a\u53c2\u6570\u53ea\u5728\u626b\u63cf\u6a21\u5f0f\u4e0b\u624d\u9700\u8981\u7528\uff0c\r\n\t\t\u5982\u679c\u662f\u975e\u626b\u63cf\u6a21\u5f0f\uff0c\u90a3\u6574\u4e2a\u5217\u8868\u53ea\u6709\u7b2c\u4e00\u4e2a\u5e8f\u5217\u6709\u7528*\/\r\n\tADC_InitStruct.ADC_NbrOfChannel=1;\r\n\t\r\n\tADC_Init(ADC1,&ADC_InitStruct);\r\n\t\r\n\t\/\/\u5f00\u542fADC\u7535\u6e90\r\n\tADC_Cmd(ADC1,ENABLE);\r\n\t\r\n\t\/\/ADC\u6821\u51c6\r\n\tADC_ResetCalibration(ADC1);\/\/\u590d\u4f4d\u6821\u51c6\r\n\t\/*\u83b7\u53d6\u590d\u4f4d\u6821\u51c6\u72b6\u6001\uff0c\u6240\u4ee5\u5982\u679c\u8981\u7b49\u5f85\u590d\u4f4d\u5b8c\u6210\u7684\u8bdd\uff0c\r\n\t\u8fd8\u9700\u8981\u52a0\u4e2awhile\u5faa\u73af\uff0c\u5982\u679c\u6ca1\u6709\u6821\u51c6\u5b8c\u6210\uff0c\u5c31\u5728\u8fd9\u4e2awhile\u7a7a\u5faa\u73af\u91cc\u4e00\u76f4\u7b49\u5f85\u3002*\/\r\n\twhile(ADC_GetResetCalibrationStatus(ADC1) == SET);\r\n\tADC_StartCalibration(ADC1);\/\/\u5f00\u542f\u6821\u51c6\r\n\twhile(ADC_GetCalibrationStatus(ADC1) == SET);\/\/\u7b49\u5f85\u6821\u51c6\u662f\u5426\u5b8c\u6210\u4e86\u3002\r\n\t\r\n\t\/\/\u8f6f\u4ef6\u89e6\u53d1\u7684\u51fd\u6570,ADC\u5f00\u542f\u8fdb\u884c\u8f6c\u6362\u3002\u5185\u90e8ADC\u8fde\u7eed\u4e0d\u65ad\u5730\u5bf9\u6307\u5b9a\u901a\u9053\u8f6c\u6362\u3002\r\n\tADC_SoftwareStartConvCmd(ADC1, ENABLE);\r\n\t\r\n}\r\nuint16_t AD_GetValue()\r\n{\r\n\treturn ADC_GetConversionValue(ADC1);\r\n}<\/code><\/pre>\n
 <\/p>\n
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 <\/p>\n
ADC\u591a\u901a\u9053\u4ee3\u7801<\/h3>\n
\"\"<\/p>\n
\u5982\u4f55\u5b9e\u73b0\u591a\u901a\u9053\u91c7\u96c6\u5462\uff1f<\/p>\n
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\u90a3\u8fd9\u4e9b\u65b9\u6cd5\u90fd\u4e0d\u884c\uff0c\u6211\u4eec\u672c\u8282\u662f\u4e0d\u662f\u5c31\u4e0d\u80fd\u5b9e\u73b0\u591a\u901a\u9053\u4e86\u5462\uff1f<\/p>\n
\u7b54\u6848\u662f\u80fd\u5b9e\u73b0\uff0c\u800c\u4e14\u975e\u5e38\u7b80\u5355\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5355\u6b21\u8f6c\u6362\uff0c\u975e\u626b\u63cf\u6a21\u5f0f\u6765\u5b9e\u73b0\u591a\u901a\u9053\u3002\u53ea\u9700\u8981\u5728\u6bcf\u6b21\u89e6\u53d1\u8f6c\u6362\u4e4b\u524d\uff0c\u624b\u52a8\u66f4\u6539\u4e00\u4e0b\u5217\u8868\u7684\u7b2c\u4e00\u4e2a\u4f4d\u7f6e\u7684\u901a\u9053\u5c31\u884c\u4e86\u3002\u6bd4\u5982\uff0c\u7b2c\u4e00\u6b21\u8f6c\u6362\uff0c\u5148\u5199\u5165\u901a\u90530\uff0c\u4e4b\u540e\u89e6\u53d1\u3001\u7b49\u5f85\u3001\u8bfb\u503c\uff1b\u7b2c\u4e8c\u6b21\u8f6c\u6362\uff0c\u518d\u628a\u901a\u90530\u6539\u6210\u901a\u90531\uff0c\u4e4b\u540e\u89e6\u53d1\u3001\u7b49\u5f85\u3001\u8bfb\u503c……\u8fd9\u6837\uff0c\u5728\u8f6c\u6362\u524d\uff0c\u5148\u6307\u5b9a\u4e00\u4e0b\u901a\u9053\uff0c\u518d\u542f\u52a8\u8f6c\u6362\uff0c\u5c31\u53ef\u4ee5\u8f7b\u677e\u7684\u5b9e\u73b0\u591a\u901a\u9053\u8f6c\u6362\u7684\u529f\u80fd\u4e86\u3002<\/p>\n
AD\u521d\u59cb\u5316\u4ee5\u53caAD\u901a\u9053\u503c\u8fd4\u56de\u51fd\u6570\uff1a<\/p>\n
void AD_Init()\r\n{\r\n\t\/\/\u5f00\u542f\u65f6\u949f\r\n\tRCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);\r\n\tRCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1,ENABLE);\r\n\t\r\n\t\/\/\u914d\u7f6eADCCLK\uff0c6\u5206\u9891\uff0cADCCLK = 72MHz\/6= 12MHz\r\n\tRCC_ADCCLKConfig(RCC_PCLK2_Div6);\r\n\t\r\n\t\/\/\u914d\u7f6eGPIO\uff0c\u521d\u59cb\u5316PA0\u5f15\u811a\r\n\tGPIO_InitTypeDef GPIO_InitStructure;\r\n\tGPIO_InitStructure.GPIO_Mode=GPIO_Mode_AIN;\/\/\u6a21\u62df\u8f93\u5165\r\n\t\/*\u5728AIN\u6a21\u5f0f\u4e0b\uff0cGPIO\u53e3\u662f\u65e0\u6548\u7684\uff0c\u65ad\u5f00GPIO\u9632\u6b62GPIO\u53e3\u7684\u8f93\u5165\u8f93\u51fa\u5bf9\u6a21\u62df\u7535\u538b\u9020\u6210\u5e72\u6270\u3002\r\n\t\t\u6240\u4ee5AIN\u6a21\u5f0f\u662fADC\u7684\u4e13\u5c5e\u6a21\u5f0f\u3002*\/\r\n\tGPIO_InitStructure.GPIO_Pin=GPIO_Pin_0 |GPIO_Pin_1 |GPIO_Pin_2 |GPIO_Pin_3;\r\n\tGPIO_Init(GPIOA,&GPIO_InitStructure); \r\n\r\n\t\r\n\t\/\/\u914d\u7f6eADC\r\n\tADC_InitTypeDef ADC_InitStruct;\t\r\n\t\t\/\/ADC\u5de5\u4f5c\u6a21\u5f0f\uff0c\u914d\u7f6e\u72ec\u7acb\u6a21\u5f0f\u6216\u8005\u53ccADC\u6a21\u5f0f\u3002\r\n\tADC_InitStruct.ADC_Mode=ADC_Mode_Independent; \r\n\t\t\/\/\u6570\u636e\u5bf9\u9f50\uff0c\u9009\u62e9\u53f3\u5bf9\u9f50\u3002\r\n\tADC_InitStruct.ADC_DataAlign=ADC_DataAlign_Right;\t\r\n\t\t\/\/\u5916\u90e8\u89e6\u53d1\u8f6c\u6362\u9009\u62e9\uff0c\u5c31\u662f\u89e6\u53d1\u63a7\u5236\u7684\u89e6\u53d1\u6e90\u3002\r\n\t\t\/\/\u9009\u62e9\u4e0d\u662f\u4f7f\u7528\u5916\u90e8\u89e6\u53d1\uff0c\u5c31\u662f\u8f6f\u4ef6\u89e6\u53d1\u7684\u610f\u601d\u3002\r\n\tADC_InitStruct.ADC_ExternalTrigConv=ADC_ExternalTrigConv_None;\r\n\t\t\/\/\u8fde\u7eed\u8f6c\u6362\u6a21\u5f0f\uff0c\u9009\u62e9\u8fde\u7eed\u8f6c\u6362\u8fd8\u662f\u5355\u6b21\u8f6c\u6362\u3002\r\n\tADC_InitStruct.ADC_ContinuousConvMode=DISABLE;\r\n\t\t\/\/\u626b\u63cf\u8f6c\u6362\u6a21\u5f0f\uff0c\u9009\u62e9\u626b\u63cf\u6a21\u5f0f\u8fd8\u662f\u975e\u626b\u63cf\u6a21\u5f0f\u3002\r\n\tADC_InitStruct.ADC_ScanConvMode=DISABLE;\r\n\t    \/\/\u901a\u9053\u6570\u76ee\uff0c\u6307\u5b9a\u5728\u626b\u63cf\u6a21\u5f0f\u4e0b\uff0c\u603b\u5171\u4f1a\u7528\u51e0\u4e2a\u901a\u9053\u3002\r\n\t\t\/*\u5176\u5b9e\u8fd9\u4e2a\u53c2\u6570\u53ea\u5728\u626b\u63cf\u6a21\u5f0f\u4e0b\u624d\u9700\u8981\u7528\uff0c\r\n\t\t\u5982\u679c\u662f\u975e\u626b\u63cf\u6a21\u5f0f\uff0c\u90a3\u6574\u4e2a\u5217\u8868\u53ea\u6709\u7b2c\u4e00\u4e2a\u5e8f\u5217\u6709\u7528*\/\r\n\tADC_InitStruct.ADC_NbrOfChannel=1;\r\n\t\r\n\tADC_Init(ADC1,&ADC_InitStruct);\r\n\t\r\n\t\/\/\u5f00\u542fADC\u7535\u6e90\r\n\tADC_Cmd(ADC1,ENABLE);\r\n\t\r\n\t\/\/ADC\u6821\u51c6\r\n\tADC_ResetCalibration(ADC1);\/\/\u590d\u4f4d\u6821\u51c6\r\n\t\/*\u83b7\u53d6\u590d\u4f4d\u6821\u51c6\u72b6\u6001\uff0c\u6240\u4ee5\u5982\u679c\u8981\u7b49\u5f85\u590d\u4f4d\u5b8c\u6210\u7684\u8bdd\uff0c\r\n\t\u8fd8\u9700\u8981\u52a0\u4e2awhile\u5faa\u73af\uff0c\u5982\u679c\u6ca1\u6709\u6821\u51c6\u5b8c\u6210\uff0c\u5c31\u5728\u8fd9\u4e2awhile\u7a7a\u5faa\u73af\u91cc\u4e00\u76f4\u7b49\u5f85\u3002*\/\r\n\twhile(ADC_GetResetCalibrationStatus(ADC1) == SET);\r\n\tADC_StartCalibration(ADC1);\/\/\u5f00\u542f\u6821\u51c6\r\n\twhile(ADC_GetCalibrationStatus(ADC1) == SET);\/\/\u7b49\u5f85\u6821\u51c6\u662f\u5426\u5b8c\u6210\u4e86\u3002\r\n\r\n\t\r\n}\r\nuint16_t AD_GetValue(uint8_t ADC_Channel)\r\n{\r\n\t\t\r\n\t\/\/\u9009\u62e9\u89c4\u5219\u7ec4\u7684\u8f93\u5165\u901a\u9053\u3002\u91c7\u6837\u65f6\u95f4\u662f55.5\u4e2aADC\u5468\u671f\u3002\r\n\t\/\/\u8fd9\u4e2a\u51fd\u6570\u7684\u610f\u601d\u662f\uff0c\u5728\u89c4\u5219\u7ec4\u5e8f\u52171\u7684\u4f4d\u7f6e\u653e\u5165\u901a\u9053x\uff0cx\u7ecf\u8fc7\u5916\u90e8\u4f20\u8f93\u5f97\u77e5\u3002\r\n\tADC_RegularChannelConfig(ADC1,ADC_Channel,1,ADC_SampleTime_55Cycles5);\r\n\t\r\n\t\/\/\u8f6f\u4ef6\u89e6\u53d1\u7684\u51fd\u6570,ADC\u5f00\u542f\u8fdb\u884c\u8f6c\u6362\u3002\r\n\tADC_SoftwareStartConvCmd(ADC1, ENABLE);\r\n\t\/\/\u83b7\u53d6\u6807\u5fd7\u4f4d\u51fd\u6570\u67e5\u770bADC\u662f\u5426\u8f6c\u6362\u5b8c\u6210\uff0c\u8f6c\u5316\u5b8c\u6210\u540eEOC\u7531\u786c\u4ef6\u81ea\u52a8\u7f6e1\uff0c\u5c31\u8df3\u51fa\u5faa\u73af\u4e86\u3002\r\n\t\/*\u5177\u4f53\u8981\u7b49\u5f85\u591a\u957f\u65f6\u95f4\u5462\uff1f\u6211\u4eec\u521a\u624d\u914d\u7f6e\u4e86\u91c7\u6837\u5468\u671f\u662f55.5\uff0c\u8f6c\u6362\u5468\u671f\u662f\u56fa\u5b9a\u768412.5\uff0c\r\n\t\t\u52a0\u8d77\u6765\u4e00\u5171\u662f68\u4e2aADC\u5468\u671f\uff0cADC\u9891\u7387\u662f12MHz\uff0c\u6362\u7b97\u662f5.67us*\/\r\n\twhile(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET);\r\n\t\/\/\u8f6c\u5316\u5b8c\u6210\u540e\u8fd4\u56de\u8f6c\u6362\u503c\u3002\r\n\treturn ADC_GetConversionValue(ADC1);\r\n\t\/\/\u8fd9\u91cc\u8bfb\u53d6\u6570\u636e\u5bc4\u5b58\u5668\uff0c\u4f1a\u81ea\u52a8\u6e05\u9664EOC\u7684\u6807\u5fd7\u4f4d\uff0c\u6240\u4ee5\u4e0d\u9700\u8981\u518d\u624b\u52a8\u6e05\u9664\u6807\u5fd7\u4f4d\u4e86\u3002\r\n}<\/code><\/pre>\n
AD\u591a\u901a\u9053\u903b\u8f91\u51fd\u6570\uff1a<\/p>\n
uint16_t AD0,AD1,AD2,AD3;\r\nint main(void){\r\n\tOLED_Init();\r\n\tAD_Init();\r\n\tOLED_ShowString(1,1,\"AD0:\");\/\/\u5b57\u7b26\u4e32\r\n\tOLED_ShowString(2,1,\"AD1:\");\/\/\u5b57\u7b26\u4e32\r\n\tOLED_ShowString(3,1,\"AD2:\");\/\/\u5b57\u7b26\u4e32\r\n\tOLED_ShowString(4,1,\"AD3:\");\/\/\u5b57\u7b26\u4e32\r\n\twhile(1)\r\n\t{\r\n\t\tAD0 = AD_GetValue(ADC_Channel_0);\r\n\t\tAD1 = AD_GetValue(ADC_Channel_1);\r\n\t\tAD2 = AD_GetValue(ADC_Channel_2);\r\n\t\tAD3 = AD_GetValue(ADC_Channel_3);\r\n\t\t\r\n\t\tOLED_ShowNum(1,5,AD0,4); \/\/\u5341\u8fdb\u5236\u65e0\u7b26\u53f7\u6570\r\n\t\tOLED_ShowNum(2,5,AD1,4); \/\/\u5341\u8fdb\u5236\u65e0\u7b26\u53f7\u6570\r\n\t\tOLED_ShowNum(3,5,AD2,4); \/\/\u5341\u8fdb\u5236\u65e0\u7b26\u53f7\u6570\r\n\t\tOLED_ShowNum(4,5,AD3,4); \/\/\u5341\u8fdb\u5236\u65e0\u7b26\u53f7\u6570\r\n\t}\r\n}<\/code><\/pre>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
AD\u5355\u901a\u9053\u63a5\u7ebf\u56fe PA0~7\uff0cpb0~1\u8fd910\u4e2a\u5f15\u811a\u662fADC\u768410\u4e2a\u901a\u9053\uff0c\u63a5\u5728\u54ea\u4e2a\u90fd\u884c\uff0c\u8fd9\u91cc\u6211\u4eec\u63a5\u7684\u662fPA0\u3002 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-748","post","type-post","status-publish","format-standard","hentry","category-stm32"],"_links":{"self":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts\/748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/comments?post=748"}],"version-history":[{"count":8,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts\/748\/revisions"}],"predecessor-version":[{"id":761,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts\/748\/revisions\/761"}],"wp:attachment":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/media?parent=748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/categories?post=748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/tags?post=748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}