自己现在用的CPLD下载线，用74HC244芯片 要注意设置下载模式

x5045的应用程序，多初学的朋友很有帮助！-X5045 applications, and more helpful beginner

单片机，与PC 串口通讯 程序-Microcontroller, and PC serial communication program

ch451键盘LED管理芯片的驱动程序,很好用的,设计很标准的代码-ch451 keyboard LED chip management of the driver, the good design is the standard code

文件中包含C8051F单片机应用CAN功能时所需的CAN初始化及接收发送函数，已经过长期验证和应用，可以放心使用。-C8051F MCU file contains the necessary application of CAN function to send and receive CAN initialization function, has been a long-term verification and applications, you can rest assured that use.

这是一个RS232方面的资料，可供在单片机设计方面的人员参考-This is a RS232 information, available in single-chip design reference

24c04读写程序，同时控制p10口的打开和关闭-24c04 read and write procedures for control of p10 at the same time the mouth opened and closed

80C51单片机中字符型液晶1602显示实验的源程序，里面包含了1602的datasheet。-80C51 MCU 1602 character LCD display source experiments, which contains the 1602

新华龙f020的spi0接口 控制MAX7221的数码管显示的程序，经过验证，绝对好用 -Hualong spi0 new F020

在51单片机上实现UCOS嵌入式系统编程。用户可自由添加代码。-To realize ucos embedded system programming in 51 single chip. code can be added freely.

c8051f020 i2c 的简单应用-c8051f020 i2c simple application