测试自己的反应时间是多少，用于频率的测试

STM开发板自带IAP程序,适合需要熟悉STM单片机的人学习使用-STM development board comes with IAP program, suitable for people who need to know to learn the use of STM Microcontroller

NE2000的驱动-NE2000 drivers

简易LED 点阵汉字显示控制模块设计，包括LED汉字显示原理、电路原理图和程序设计，简单明了。-Simple LED dot-matrix character display control module design, including LED display Chinese characters principle, circuit schematic diagram and program design, simple and straightforward.

这是一个C8051FXXX的脉冲发送程序.--Pulse sending program for C8051FXXX.

在sopc 当中创建硬件电路，在nios对i2c器件进行读写-Were created in SOPC hardware circuit, in the Nios of i2c devices to read and write

VS1003解码芯片的第七和第八章中文翻译，对开发VS1003非常有帮助。-VS1003 decoder chip chapters VII and VIII of the Chinese translation of VS1003 on the development of very helpful.

射频卡读写器，超过PHILIPS的射频基站，可读写14443，13956等协议的卡。加密强度目前可能是最高的。价格便宜。-RF card reader, more than PHILIPS radio base stations, read-write the agreement, such as the 14443,13956 card. The current strength of encryption is the highest. The price was cheap.

高级数据链路控制（HDLC）协议的介绍文档，对通讯编程很有用。-High-Level Data Link Control (HDLC) protocol, introduced the document, very useful for communications programming.

bootloader software programmed into the Philips P89V51RD2 and P89LV51RD2 microcontrollers

SST flash driver,已经经过测试，无需修改源码，只需根据不同平台调整延时即可。