利用F28335外设Zone0的片选XZCS0连接模数转换器AD7656的片选端口CS,进行16位数据传输(AD7656在片选CS和读数据引脚RD同时为低时,16位输出总线使能输出)。这样在转换完成后,读取Zone0的首地址0x4000内的数据时,结果不正确。通过CCS的memory观察0x4000的数据一直为零。求问一下,数据问什么读不出来啊???
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