用I/O口实现串口通信，通过8051实现，编译环境 keil C51。-using I / O Serial Communication mouth, through 8051 realization keil C51 compiler environment.

EW 8051_ project for my Project.... OK? this is 8051 source wow I m wow

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