Alter NIOSII Avalon bus ,PS/2 host controller with initialization code. -FPGA proven. This controller support hot plug. Please read reg_file.v for register setting.

internal_types.h,v 1.2 2004 05 06 15:53:39 drahn Exp $.

扫频功能key2level.v 按键点击一次，输出信号电平变化一次； key2pulse.v 按键点击一次，输出信号产生一个周期的脉冲信号；-weep function key2level.v Press the button once, the output signal level changes once Key2pulse.v Press the button once, the output signal to generate a cycle o