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对ads7845写入0x90后在读数据一直是0x80。这是怎么回事??????
你好,不知你在初始化该控制器时候将转换模式设置为多少位的?是否为8位?
8位和12位都是一样,总是0x80或者0xff。控制字用过0x90,0x9c,0x9f
你好,可以把你的电路相关部分和程序相关部分贴上来分析一下