这个是我用CCS3。3做的一个AD采样，其中用到了数字滤波，采样频率可根据自己的须要做调整，经过校正后采样数据还比较准-This is my CCS3. A AD 3 to do sampling, which uses digital filtering, sampling can be adjusted according to their own needs to frequency, after correction of sampling data is accurate