When the adc is used to capture the voltage in continuous mode, the attenuation is configured to 11db and the ad value is read every 10ms. But every time ad exceeds the range, the value returned is 0 instead of the maximum value, please ask this time what to do

在esp-idf v5.1，adc的池子里数据如何更新，清空。希望哪位大神帮我解答一下，万分感谢！！！

In version 5.1 of esp-idf, how is the data in the adc pool updated and emptied. I hope you can help me answer, thank you