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AD7799 convert error / AD7799转换出错

使用AD7799,有时候会很偶尔地出现转换时间过长,并且转换数据出错的问题,但是掉电重启后又恢复正常,请问有可能是什么原因造成的?大家有遇见过类似的问题吗?

when I use ad7799, sometimes the conversion time is too long and the conversion data is wrong, but it returns to normal after a power failure. What could be the cause? Has anyone encountered a similar problem?