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- 2017-11-6
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发表于 2017-11-6 16:21:55
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ADC_InitTypeDef ADC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |RCC_APB2Periph_ADC1,ENABLE );//ʹÄܶ˿Ú1µÄʱÖÓºÍADC1µÄʱÖÓ£¬ÒòΪADC1µÄͨµÀ1ÔÚ A1ÉÏ
RCC_ADCCLKConfig(RCC_PCLK2_Div8); //ÉèÖÃADC·ÖƵÒò×Ó6 72M/6=12M,ADC×î´óʱ¼ä²»Äܳ¬¹ý14M£¬Ò²¾ÍÊÇADCµÄʱÖÓÆµÂÊΪ12MHz
// RCC_ADCCLKConfig(RCC_HCLK_Div16);
ADC_DeInit(ADC1); //¸´Î»ADC1,½«ÍâÉè ADC1 µÄÈ«²¿¼Ä´æÆ÷ÖØÉèΪȱʡֵ
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent; //±¾´ÎʵÑéʹÓõÄÊÇADC1£¬²¢ADC1¹¤×÷ÔÚ¶ÀÁ¢Ä£Ê½ADC_CR1µÄλ19:16,¼´Õ⼸λΪ0000
ADC_InitStructure.ADC_ScanConvMode = ENABLE; //ADC_ScanConvMode ÓÃÀ´ÉèÖÃÊÇ·ñ¿ªÆôɨÃèģʽ£¬±¾ÊµÑ鿪ÆôÉ¨ÃæÄ£Ê½.ADC_CR1µÄλ8
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE ; //ADC_ContinuousConvMode ÓÃÀ´ÉèÖÃÊÇ·ñ¿ªÆôÁ¬Ðø×ª»»Ä£Ê½ Ä£Êýת»»¹¤×÷ÔÚÁ¬Ðø×ª»»Ä£Ê½£¬ADC_CR2µÄλ1
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //ת»»ÓÉÈí¼þ¶ø²»ÊÇÍⲿ´¥·¢Æô¶¯ ADC_CR2µÄλ19:17
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //ADCÊý¾ÝÓÒ¶ÔÆëADC_CR2µÄλ11
ADC_InitStructure.ADC_NbrOfChannel = N; //˳Ðò½øÐйæÔòת»»µÄADCͨµÀµÄÊýÄ¿ADC_SQR1λ23:20
ADC_Init(ADC1, &ADC_InitStructure); //¸ù¾ÝADC_InitStructÖÐÖ¸¶¨µÄ²ÎÊý³õʼ»¯ÍâÉèADCxµÄ¼Ä´æÆ÷
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_239Cycles5 );//ADC1£»ADC1ͨµÀ0£»µÚ1ת»»£»²ÉÑùʱ¼äΪ239.5ÖÜÆÚ
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 2, ADC_SampleTime_239Cycles5 );//ADC1£»ADC1ͨµÀ1£»µÚ2ת»»£»²ÉÑùʱ¼äΪ239.5ÖÜÆÚ
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 3, ADC_SampleTime_239Cycles5 );//ADC1£»ADC1ͨµÀ3£»µÚ3ת»»£»²ÉÑùʱ¼äΪ239.5ÖÜÆÚ
// ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 4, ADC_SampleTime_239Cycles5 );//ADC1£»ADC1ͨµÀ0£»µÚ1ת»»£»²ÉÑùʱ¼äΪ239.5ÖÜÆÚ
ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 4, ADC_SampleTime_239Cycles5 );//ADC1£»ADC1ͨµÀ1£»µÚ2ת»»£»²ÉÑùʱ¼äΪ239.5ÖÜÆÚ
ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 5, ADC_SampleTime_239Cycles5 );//ADC1£»ADC1ͨµÀ3£»µÚ3ת»»£»²ÉÑùʱ¼äΪ239.5ÖÜÆÚ
ADC_RegularChannelConfig(ADC1, ADC_Channel_7, 6, ADC_SampleTime_239Cycles5 );//ADC1£»ADC1ͨµÀ0£»µÚ1ת»»£»²ÉÑùʱ¼äΪ239.5ÖÜÆÚ
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 7, ADC_SampleTime_239Cycles5 );//ADC1£»ADC1ͨµÀ1£»µÚ2ת»»£»²ÉÑùʱ¼äΪ239.5ÖÜÆÚ
ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 8, ADC_SampleTime_239Cycles5 );//ADC1£»ADC1ͨµÀ3£»µÚ3ת»»£»²ÉÑùʱ¼äΪ239.5ÖÜÆÚ
ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 9, ADC_SampleTime_239Cycles5 );//ADC1£»ADC1ͨµÀ3£»µÚ3ת»»£»²ÉÑùʱ¼äΪ239.5ÖÜÆÚ
ADC_DMACmd(ADC1, ENABLE); //ʹÄÜADC1µÄDMA´«Ê䣬ADC_CR2λ8
ADC_Cmd(ADC1, ENABLE); //ʹÄܵÄADC1,ADC_CR2λ0
ADC_ResetCalibration(ADC1); //ʹÄܸ´Î»Ð£×¼£¬ADC_CR2λ3
while(ADC_GetResetCalibrationStatus(ADC1)); //µÈ´ý¸´Î»Ð£×¼½áÊø
ADC_StartCalibration(ADC1); //¿ªÆôADУ׼£¬ADC_CR2λ2
while(ADC_GetCalibrationStatus(ADC1)); //µÈ´ýУ׼½áÊø |
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