使用型号为CY7C68013A的USB芯片，通过开发板上的按钮控制LED灯的状态-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 program uses the LED on the Development board

to display a running application program on the EZ-USB chip.

The buttons on the development board may be pressed to count up (F3),

count down (F2), and reset the seven segment LED to　0　(F1) or　F　(F4).

The code is written in C and uses several EZ-USB library functions.　

It does not use the FrameWorks.

The dev_io.hex file loads into internal memory.