文件名称:Datamemoryandthetimercounterexperiment
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1．基本实验：使用一片62256RAM，作为片外扩展的数据存贮器，先对其0000H～0EF1H单元写入
“0101 0101”（55H），然后将0000H～0EF1H单元内容依次读出，检查是否为“0101 0101”。若正
确，发光二极管L1闪烁发光，否则L1始终是亮的。
2．扩展实验：将上面的“检查是否为‘0101 0101’。若正确，发光二极管L1闪烁发光，否则L1始终
是亮的。”改成“若正确，发光二极管L0，L2，L4，L6为一组，L1，L3，L5，L7为一组，轮流闪烁发
光，否则L0～L7全亮”
-1. Basic experiment: Using a 62256RAM, as extended data memory chip, the first unit of its 0000H ~ 0EF1H write " 0101 0101" (55H), and then 0000H ~ 0EF1H cell contents were read out to check the " 0101 0101. " If correct, L1 LED flashing light, or L1 is always bright. 2. Extension test: the above " Check whether the ' 0101 0101 ' . If the right LED flashing light L1, or L1 is always bright." To " If the right LED L0, L2, L4, L6 for a group , L1, L3, L5, L7 to a group flashing light, or L0 ~ L7 full bright "
“0101 0101”（55H），然后将0000H～0EF1H单元内容依次读出，检查是否为“0101 0101”。若正
确，发光二极管L1闪烁发光，否则L1始终是亮的。
2．扩展实验：将上面的“检查是否为‘0101 0101’。若正确，发光二极管L1闪烁发光，否则L1始终
是亮的。”改成“若正确，发光二极管L0，L2，L4，L6为一组，L1，L3，L5，L7为一组，轮流闪烁发
光，否则L0～L7全亮”
-1. Basic experiment: Using a 62256RAM, as extended data memory chip, the first unit of its 0000H ~ 0EF1H write " 0101 0101" (55H), and then 0000H ~ 0EF1H cell contents were read out to check the " 0101 0101. " If correct, L1 LED flashing light, or L1 is always bright. 2. Extension test: the above " Check whether the ' 0101 0101 ' . If the right LED flashing light L1, or L1 is always bright." To " If the right LED L0, L2, L4, L6 for a group , L1, L3, L5, L7 to a group flashing light, or L0 ~ L7 full bright "
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