新华龙f020的spi0接口 控制MAX7221的数码管显示的程序，经过验证，绝对好用...

自动检测80C51 串行通讯中的波特率-automatic detection 80C51 Serial communication baud rate

51单片机操作89F0X0系列FLASH存储器的程序-51 89F0X0 Series MCU operating procedures FLASH memory

单片机TCP/IP源代码-SCM TCP/IP source code

电梯的51单片机控制资料(电路图+工程代码)-51 Singlechip elevator control data (circuit diagram+ Project code)

c8051f单片机外接ht1380，关于时间的读取，设置-c8051f MCU external ht1380, on the time to read, set

基于51单片机动态显示数码管,及中断说明等-51 MCU-based dynamic display of digital control

AVR atmega micro os:avrx.

在有线电视中实现程控有源滤波器设计。为了充分利用设备和传输线,需要一种具有频率选择的网络―滤波器,将同一线 路上不同的信号分开,在电视机中也需要不同的滤波器(即选择有用信号,抑制无用信号) 。下面利用8051 单片机与12 位分辨率的DAC1208 数模转换芯片相结合的系统实现时间常数可程控有源滤波器设计,阐述了硬件结构与软件设计-In cable television in the realization of program-controlled active filter design. In order to make full use of equipment and transmission lines, the need for a frequency selective network- filter, the same lines separate different signal in the TV also requires a different filter (ie, choice of useful signals and suppress unwanted signals). Following the use of 8051 and 12-bit resolution digital-to-analog converter DAC1208 chip combining system time constant can be program-controlled active filter design, the hardware structure and software design

ST7920_12864液晶汉字和图片显示-ST7920_12864 liquid crystal display characters and images

可用于任何单片机平台的I2C总线读写程序，IO脚模拟。-Single-chip platform can be used for any of the I2C bus to read and write procedures, IO pin analog.