STM32L系列关于DMA ADC循环采样设计干扰
//ADC1,ADC通道x,规则采样顺序值为y,采样时间为239.5周期ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 1, ADC_SampleTime_16Cycles);
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 2, ADC_SampleTime_16Cycles);
ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 3, ADC_SampleTime_16Cycles);
ADC_RegularChannelConfig(ADC1, ADC_Channel_7, 4, ADC_SampleTime_16Cycles)
设为ADC_SampleTime_16Cycles会有干扰！！
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