电子图书《华中理工大学出的C51教材》，很不错的。

伟福 WAVE6000 环境下MCS51汇编调用汇编例程-Wei Fu WAVE6000 environment MCS51 compilation compilation called routine

利用无线模块开发的报警器源程序，此程序已在产品中使用-The use of wireless module developed by alarm source, this procedure has been used in the product

液晶显示模块MGLS20040的C51驱动程序-LCD module MGLS20040 the C51 Driver

频率计，精度高，可以自动换档，一般单片机可以达到0…500k-Frequency, high precision, can automatic transmission, the general single-chip microcomputer can be 0 ... 500k

PICC18 DS18B20温度传感器读写程序-PICC18 DS18B20 temperature sensor to read and write procedures

实时时钟RTC4553的测试程序，编译环境为伟福6000，汇编程序-real-time clock RTC4553 testing procedures, compile environment for the 6,000-fu, assembler

C51程序-C51 procedures

C8051F120初始化SPI，启动CC2420。通过将CC2420 得VREG_EN 引脚置位高电平使能Voltage regulator，等待其稳定；然后重新启动CC2420 芯片，等待晶振起振。-Initialize SPI, start the CC2420. By CC2420 have VREG_EN pin high to enable the set Voltage regulator, waiting for their stability and then re-start the CC2420 chip, since waiting for crystal oscillator.

由SPCE061A控制的74hc595的驱动程序,一般用于串转并-by SPCE061A 74hc595 control of the driver, generally for serial switch and

本人从网上收集的关于Keil-C51的相关教程,对初学者很有帮助-I gathered from the Internet on the Keil-C51 related tutorials, very helpful for beginners