用89C52制作太阳电池数显充放电控制器原程序.说明：70H内存单元存放采样值，78H-7AH存放显示的BCD码数据；自然就依次为个位、十位和百位，模数转换器是ADC0809

完整的SUN公司的最新编程规范（英文版）。

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