matrix

51单片机连接74HC595，点亮多个LED灯(51 Single Chip Microcomputer Connects 74HC595 to Light Multiple LED Lamps)

一个基于NXP公司的LPC1788芯片开发的程序，该程序是一个下拉式菜单模板，利用了面向对象程序设计理念，非常容易扩充菜单内容。(Based on NXP s LPC1788 chip development a program, which is a drop-down menu template, use of object-oriented programming concepts, very easy to expand the menu contents.)

led 点阵开发,用于开发led显示屏幕，能够显示汉字，图像，和流动字体(for led matrix develop source,you can use it to make a beatiful led screen which can display a picture)

步进电机控制程序，可以实现加速 减速 匀速，里面包含两个程序(Stepper motor control program, you can achieve a uniform acceleration and deceleration, which contains two procedures)

TDC-GP21 激光测距接收电路设计 Time-digital converter application currentdesign(TDC-GP21 laser rangefinder receiver circuit design Time-digital converter application currentdesign)

c8051f的相关代码，包括USB通讯、SIP通讯、AD采样、时钟设置等(related code of c8051f, including USB communication, SIP communications, AD sampling clock settings)

使用stm32f4搭载ov7725，进行图像读取与数据处理，能稳定显示在lcd显示屏上，并且提取黑线(The use of stm32f4 equipped with ov7725, image reading and data processing, can be stably displayed on the LCD display, and extract black lines)

codewarrior for hcs12 摩托罗拉16位单片机编译工具codewarrior的30天代码无限制试用版注册文件(Motorola MCU 16 compiler tools codewarrior 30 days of unlimited trial version code registration documents)

USB_MSD Project for Keil 454

说明：  STM32F407驱动SPI屏幕，采用的是模拟SPI(STM32F407 drives SPI screen, using simulated SPI)