this is a simple clock working with an old vga monitor

VGA显示源码，行信号，场信号和时钟模块-VGA display source code, line signals, market signals and clock modules

本设计主要有12864万年历、闹钟、通过PS键盘扫描在1602上显示字符、用矩阵键盘空VGA显示彩条以及字符-This design has 12864 calendar, alarm clock, keyboard scan showed character by PS in 1602, showing the color of the character matrix keyboard and VGA empty