C51最常用的IDE环境，KEIL C51的最新版本Keil C51 V8.15。包含官方程序安装包和最新的注册机，已经修正了0xfd的bug，测试有效，笔者现在用的就是这个注册机破解版本。,C51 the most commonly used IDE environment, KEIL C51 latest version of Keil C51 V8.15. Installation package contains the official procedures and the lates

IAR4.6，NEC单片机编程器，共十个压缩包，含破解文件，可顺利安装，喜欢就拿去。-IAR4.6, NEC microcontroller programmer, a total of ten cabinet, including crack file, can be successfully installed, like to take it.

quartus 17.1 安装包，我现在用的就是(Quartus 17.1 installation kit, what I am using now is)