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"CodeBus" is the largest source code store in internet, now total codes/documents: 3000000+, total file size: 5000GB+
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"CodeBus" is the largest source code store in internet, now total codes/documents: 3000000+, total file size: 5000GB+
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Immediately upload various types of popular source code and related information, the more the better, the greater the chance of being searched! The more you upload files in the morning, the earlier you get coins. The more times you download, the more coins you get.
Immediately upload various types of popular source code and related information, the more the better, the greater the chance of being searched! The more you upload files in the morning, the earlier you get coins. The more times you download, the more coins you get.
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- 【Other resource】实现pc机键盘（p/s2接口）与8位单片机连接使用 原理：键盘时钟接在p3.2口，既8051的外部中断int0上，键盘数据接到p1.0上 每次按键，键盘会向单片机发脉冲使单片机发生外部中断，数据有p1.0口一位一位传进来 传回的数据格式为：1位开始位（0），8位数据位（所按按键的通码，用来识别按键），1位校验位(奇校验) 1位结束位(1) 实现：将键盘发回的数据放到一个缓冲区里（数组），当按键结束后发生内部中断来处理所按的按键 缺点：由
Update : 2008-10-13 | Size : 4074