单片机制作PC机键盘问题

apple0731

单片机制作PC机键盘问题 [复制链接]

PC机上电后是不是要按如下顺序完成命令！但第一条中键盘向PC机发送0xAA命令是在什么时候发送，而且这些都要逐个发吗？
Keyboard: AA Self-test passed ;Keyboard controller init
Host: ED Set/Reset Status Indicators
Keyboard: FA Acknowledge
Host: 00 Turn off all LEDs
Keyboard: FA Acknowledge
Host: F2 Read ID
Keyboard: FA Acknowledge
Keyboard: AB First byte of ID
Host: ED Set/Reset Status Indicators ;BIOS init
Keyboard: FA Acknowledge
Host: 02 Turn on Num Lock LED
Keyboard: FA Acknowledge
Host: F3 Set Typematic Rate/Delay ;Windows init
Keyboard: FA Acknowledge
Host: 20 500 ms / 30.0 reports/sec
Keyboard: FA Acknowledge
Host: F4 Enable
Keyboard: FA Acknowledge
Host: F3 Set Typematic Rate/delay
Keyboard: FA Acknowledge
Host: 00 250 ms / 30.0 reports/sec
Keyboard: FA Acknowledge

weijing1225

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之城

是PS/2键盘吗？用的什么单片机啊？
个人认为只要检测到PC机没有抑制通讯，就可以向PC机发送0xAA命令。
LZ可以试试。

紫色宇宙

简单点做法：
上电后500 毫秒左右发送0xAA 0x00

hjyhjony

严格点要按时序接受数据检测  到主机的0xff 后响应  0xfa,0xaa