3、ADC设置 这里需要注意的一点是:Sampling Time(采样周期)设置越长采集到的电压越准,同时耗费的时间越长。可以根据需要选择自己需要的周期。 具体设置如下图所示: 二、实验 1.ADC采集电压函数 需要注意的一点:打开ADC后不能立即读取,需要延时一段时间 ADC读取步骤: 1、打开ADC中断 2、延时一段时间 3、读取ADC...
ADC3_ChanConf.SamplingTime=ADC_SAMPLETIME_480CYCLES; //采样时间 ADC3_ChanConf.Offset=0;HAL_ADC...
ADC1_ChanConf.Rank=1; //第1个序列,序列1 ADC1_ChanConf.SamplingTime=ADC_SAMPLETIME_239CYCLES_5; //采样时间 HAL_ADC_ConfigChannel(&ADC1_Handler,&ADC1_ChanConf); //通道配置 HAL_ADC_Start(&ADC1_Handler); //开启ADC HAL_ADC_PollForConversion(&ADC1_Handler,10); //轮询转换 return (u16...
Rank 用来设置要配置的通道是规则序列中的第几个转换,SamplingTime 用来设置采样时间。 使用实例为: ADC1_ChanConf.Channel= ADC_CHANNEL_5; //通道 5 ADC1_ChanConf.Rank=1; //第 1 个序列,序列 1 ADC1_ChanConf.SamplingTime=ADC_SAMPLETIME_480CYCLES; //采样时间 ADC1_ChanConf.Offset=0; HAL_ADC_...
sConfig.SamplingTime = ADC_SAMPLETIME_239CYCLES_5; //采用周期239.5周期 sConfig.Rank = 1; HAL_ADC_ConfigChannel(&hadc1,&sConfig); for(i=0;i<times;i++) { HAL_ADC_Start(&hadc1); //启动转换 HAL_ADC_PollForConversion(&hadc1,30); //等待转化结束 value_sum += HAL_ADC_GetValue(...
第二个参数ADC_TwoSamplingDelay用来设置两个采样阶段之间的延迟周期数。这个比较好理解。取值范围为：ADC...
This paper provides a software-based general average over-sampling technology which use an oversampling frequency of the cycle timer which is running, timer in the past triggers a sampling frequency conversion to generate an additional clear ADC interrupt, accumulated 16 times in the conversion, ...
The Nyquist theorem theoretically sets the minimum limit for the ADC sampling rate. However, practically, the ADC sampling rate can be greater than the highest frequency to be preserved or sampled. For accurate digitalization, the ADC sampling rate is chosen to be at least 5 to 10 times the ...
ADCCLK=PCLK2/4=84/4=21Mhz,ADC时钟最好不要超过36MhzADC_CommonInitStructure.ADC_TwoSamplingDelay=ADC_TwoSamplingDelay_5Cycles;//两个采样阶段之间的延迟5个时钟ADC_CommonInit(&ADC_CommonInitStructure);ADC_InitStructure.ADC_Resolution=ADC_Resolution_12b;//12位模式ADC_InitStructure.ADC_ScanConvMode=...
channels successively with different sampling times and in different orders. You can for example carry out the sequence shown in Figure 2. In this way, you do not have to stop the ADC during the conversion process in order to reconfigure the next channel with a different sampling time. ...