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312277303
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樓主  發(fā)表于: 2018-10-10 21:49
今天碰到有個(gè)很老的機臺用的CPM1A作主機，上位機是單片機作的。單片機沒(méi)有屏幕 ，輸入參數很不方便，所以想加個(gè)觸摸。但是 操作開(kāi)關(guān)都在單片機上，所以單片機得保留。但是CPM1A只有一個(gè)通訊口，通訊口可以再擴展一個(gè)嗎？（原單片機是通過(guò)一個(gè)CIFO1轉的232口和CPM1A通訊。）
xufufan
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1樓  發(fā)表于: 2018-10-12 08:59
可以，或者是采用一機多屏的方式
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2樓  發(fā)表于: 2018-10-12 09:57
如何實(shí)現

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