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基于CYPRESS CY7C68013 usb2.0的开发程序，该程序演示了访问IO的编写方法。-This directory contains the dev_io 8051 firmware The purpose of this software is to demonstrate how to use the buttons and LED on the EZ-USB developer s kit. The device I/O example progr

基于51单片机的简易计数器的设计,能够实现正技术和倒计数，计数值通过数码管进行显示。-A simple counter designed with 51microcontroller, which can count up or down, and the number is displayed on digital tube.