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电压表实验（AD转换）
1 /*电压表 精确到小数点后面三位*/2 /*连线：电位器接IN0，AD_CS接CS0,CS1接KEY/LED_CS*/3 #include4 typedef unsigned char uchar;5 xdata uchar LED_CS _at_ 0x9000;6 xdata uchar LED_OUTSEG _at_ 0x9004;7 xdat
1 /*电压表 精确到小数点后面三位*/2 /*连线：电位器接IN0，AD_CS接CS0,CS1接KEY/LED_CS*/3 #include4 typedef unsigned char uchar;5 xdata uchar LED_CS _at_ 0x9000;6 xdata uchar LED_OUTSEG _at_ 0x9004;7 xdat
