问答

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21ic问答首页 - TAG - 点阵屏
  • IO扩展串转并实验 点阵屏没有实验现象?

    普中51买的开发板, 用的他给的资料里的代码也不行

    代码 实验 点阵屏 IO扩展 技术交流 单片机

    1183浏览量 1回复量 关注量
  • 关于LCD点阵屏幕显示问题

    关于显示问题:比如 以下两种情况调用情况一: [img]data:image/png;base64,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[/img] 调用显示 最后一个V无法显示出来,并且观察屏幕最后是会空出来大概一个字节的,第一行没有铺满。 情况二: [img]data:image/png;base64,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[/img] 如果不经过转换之间 以上调用方式,则可以完整的显示出来,屏幕第一行16个字符刚好完全显示出来。请教一下各位佬会是什么原因造成的。屏幕使用的是JLX12864G-300-PN。

    屏幕显示 点阵屏 问答 小白 LCD

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