c51反汇编器，现在虽然用51的地方已经不多，但是对一些单片机初学的朋友们来说还是很有些用处的-anti-c51 assembler, although it is running with 51 places, but some microcontroller beginner friends still very useful

51单片机串口开发工具，很实用的工具，源代码分析-51 microcontroller serial development tools, practical tools, source code analysis

51单片机通过模拟I2C通信接口来操控修改接触式IC卡AT24C01上面的信息，以达到身份识别的目的，还可以把金额数写入IC卡中，作为局域内的消费卡片使用-51 microcontroller simulation I2C communication interface to manipulate the contactless IC card AT24C01 modify the above information, in order to achieve the purpose of ide