On power up, the firmware starts executing code at address 0h. After some housekeeping tasks it will determine whether it is attached to a USB or a PS2 interface. From that, it will branch either to USB_Main or PS2_Main. -On power up, the

用 vhdl 编写的ps2 keyboard 的接口程序-prepared using VHDL ps2 keyboard interface procedures

51单片机PS2键盘接口程序,keil c编译通过,可靠稳定-51 microcontroller PS2 keyboard interface program, keil compiler through c, stable and reliable