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AD574A参考程序
ad574a程序：sbit ad_status = P3^3;uchar xdata ad_convert _at_ 0x6000; //开始转换uchar xdata ad_read_hi _at_ 0x6002; //读取高字节uchar xdata ad_read_lo _at_ 0x6003; //读取低字节uint ad_
ad574a程序：sbit ad_status = P3^3;uchar xdata ad_convert _at_ 0x6000; //开始转换uchar xdata ad_read_hi _at_ 0x6002; //读取高字节uchar xdata ad_read_lo _at_ 0x6003; //读取低字节uint ad_
