PS/2、显示接口定义 PS/2 键盘接口定义 PS/2 键盘接口为 6 针母插，外观为： [pic] |引脚定义 | |Pi|Nam|Dir|Descripti| |n |e | |on | |1 |DAT|[pi|Key Data | | |A |c] | | |2 |n/c|- |Not | | | | |connected| |3 |GND|[pi|Gnd | | | |c] | | |4 |VCC|[pi|Power , | | | |c] |+5 VDC | |5 |CLK|[pi|Clock | | | |c] | | |6 |n/c|- |Not | | | | |connected| PS/2 鼠标接口定义     PS/2 鼠标接口为 6 针母插，外观为：[pic] |引脚定义 | |Pi|Nam|Dir|Descripti| |n |e | |on | |1 |DAT|[pi|Key Data | | |A |c] | | |2 |n/c|- |Not | | | | |connected| |3 |GND|[pi|Gnd | | | |c] | | |4 |VCC|[pi|Power , | | | |c]……