lpc2119canSET

lpc2132读写SST39VF400的程序，通过串口发给单片机，由单片机写入FLASH，可以擦除和写入。ADS1.2编译(This is a program for lpc2132 to write SST39VF400.use ads1.2)

yaffs2文件系统实现原理分析，已经添加了书签，很方便(Yaffs2 file system implementation principle analysis, has added bookmarks, very convenient)

硬件平台：STM32F401板子 软件平台：Keil5 功能：实现不同占空比的PWM波输出，通过按键切换输出模式（25%，50%，75%三种占空比模式）同时外接数码管显示当前模式（1，2，3）(Hardware platform: STM32F401 board Software platform: Keil5 Function: realize PWM wave output with different duty ratio, switch output mode by key button (25%, 50%, 75% three duty ratio mode) and display current mode (1, 2, 3).)

本文从学习者的角度出发,分别描述了下面几部分内容: ARM 编程的基本知识,BOOT 代码流程和功能分析,OS 中断程序的编写举例 和 BOOT 代码的流程图,希望这些内容能为初学 ARM 的朋友拨开迷雾,以最快 的速度和最短的时间走进嵌入世界的大们.(From the learner' s point of view, describe the contents of the following sections: ARM basic knowledge of programming, BOOT code flow and functional analysis, flow charts and code writing OS BOOT interrupt routine, for example, hope this can do for the beginner ARM friends fog, with the fastest speed and shortest time into the embedded world are big.)

该源码是arm芯片stm32的I2C源码(The source is the arm of the I2C chip stm32 source)

说明：  个人改编的4X4矩阵键盘，不考虑弹起，有兴趣者可下载研究(Personal adaptation of 4x4 matrix keyboard, regardless of bounce)

the embeede system develop file,you can find you want in this file,beacues this file is very usefull,it is for the software engineer and the hardware engineer both in english and chinese.the embeede system develop file,you can find you want in this file,beacues this file is very usefull,it is for the software engineer and the hardware engineer both in english and chinese.

哈工大嵌入式实验，基于ARM写一个简单计算器的实验，(HIT the embedded experiment, based on the ARM write a simple calculator experimental)

stm32控制as9854正交波形，仅供参考，自己琢磨。(stm32 control as9854 orthogonal waveforms, for reference, on her own.)

这个是LPC1788开发板的测试用例 都已经试过可以编译通过(This is the LPC1788 development board test cases have been compiled through)