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ADS1278配置成SPI TDM模式，CLK时钟24MHz，在SCLK没给时钟的情况下，用示波器观察Dout1管脚就不规则脉冲输出，宽度大约6us，周期不定。另外DRDY有规律性脉冲输出，宽度大约50ns，间隔60us，请问这是什么情况？
http://www.deyisupport.com/question_answer/analog/data_converters/f/58/t/49003.aspx
有人也使用了这个模式
