本文件是通过485通讯将接受MODBUS指令，采集AD数据，发送出并在对应的LED数码管上十六进制循环显示。-This document will be accepted by 485 MODBUS commands AD data collection, sending out and the corresponding LED digital display on the loop hex.

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

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