Introduction - If you have any usage issues, please Google them yourself
Through PS/2 keyboard input, VGA (800 × 600) display the characters entered, the display has a space, carriage return, backspace, a frequency display after scrolling function. And also displayed on the LCD1602 and the corresponding key scan code. For beginners a good reference value, and have a complete engineering, principles introduced, code comments, could you bring a friend to help