RTL8019中文数据手册，不是原创，转载而已，不过内容不错！

The sample software includes, common library, peripheral APIs, and test modules for the APIs. The common library include startup file, standard definition and header files, processor specific setup module, generic interrupt related APIs, timer routine, and scatter loading file. The peripheral directories include, GPIO, PWM, Real-time clock, timer, SPI, I2C, Watchdog timer, UART, external interrupt, etc.

122*32 点阵 st7920 lcd中英文显示 串行驱动程序-122* 32 dot matrix display in both Chinese and English st7920 lcd serial driver

STC单片机AD和EEPROM的驱动C代码 -AD and the STC Single-chip EEPROM of the driver C code STC Single-chip EEPROM of the drive AD and C code

内容：1、本程序用于测试4相步进电机常规驱动 2、需要用跳帽或者杜邦线把信号输出端和对应的步进电机信号输入端连接起来 3、速度不可以调节的过快，不然就没有力矩转动了 4、按s4（设置成独立按键模式）可以控制正反转 -Contents: 1, the procedure used to test the four-phase stepper motor-driven two conventional, need to jump cap or the signal output line of DuPont and the corresponding stepper motor signal input terminal connected three speed adjustment can not be too fast, Otherwise, there would be no moment of rotation of the four, according to s4 (set to form an independent key mode) can control the positive inversion

PIC16F877A控制DS18B20汇编程序 功能实现：通过DS18B20来读取温度，显示在2位LED上，精确到1度 -PIC16F877A control program features a compilation DS18B20 realize: By DS18B20 to read temperature, displayed on two LED on, accurate to one degree

单片机模数转化程序，主程序时一位从事单片机工作多年的资深教授所编写-SCM modulus conversion process, the main program in a microcontroller when a senior professor for many years to prepare

51单片机浮点子程序库(小),直接嵌入,方便使用.-51 single-chip floating-point subroutine library (small), directly embedded, user-friendly.

STC12C5A60S2 具备一般51单片机不可企及的高性能，有片内ADDA，速度是一般51的8倍！-STC12C5A60S2 high speed,low price, with ADDA in chip!

C51单片机教程L1,以及L1的例子源代码.-C51 Singlechip Guide L1, and L1 example source code.