在nios ii 9.0上实现对sd卡的读写功能，包括两部分1. sdconfig.h: 该文件为SD卡读写模块配置头文件，用户可根据实际硬件条件进行修改.2. SD目录    : SD卡读写模块的全部文件,一般不用修改. 建议sdconfig.h文件不要放于SD目录中，因为SD目录中的文件一般无须修改, 而sdconfig.h通常会有改动.

配合KEIL C的AGSI调试I2C的工具，包含了显示对话框，可以操作。-with KEIL C AGSI I2C debugging tools, including a dialog box appears, can operate.

S3C2440 Nor FLASH读写示例，用于ADS编译器

自己写的一个4X4键盘扫描的程序。。                        

所有的单片机都会涉及到232 或者485通讯,而通讯中又不可避免的出现错误.本例就给出了一个现成的校验软件.完成串口通讯,并且进行crc,累加和,异或和等效验结果-All of the single-chip will be 232 or 485 relating to communications, and communications also inevitable error. In this case on a given off-the-shelf software validation. The completion of serial communications, and to carry out crc, cumulative and, XOR and equivalent examination results

C语言和Java语言、嵌入式开发、算法实现为主-C language and Java language, Embedded development, algorithm-based

基于MCF5307的NuCleus源码，比较难找的-MCF5307 Source Based on the Nucleus, more difficult to find the

pwm发生器（原理图,pcb，程序流程图，源码80kc196）--PWM generator, including diagram, pcb, data flow diagram , and source code 80kc196).

该数控直流电流源以精密压控电流源为核心、用单片机、DAC组成控制电路，引入“S类”反馈控制功率放大电路，实现超精密电流控制、具备精准的扩流能力、低失调、有步进、同时带有 丰富扩展功能的精密电流源。经过ADC采样，完成输出电流显示功能，并使输出范围覆盖0～2A，是理想的电流源解决方案。-The CNC precision DC voltage-controlled current source to current source at the core, with single-chip, DAC control circuit components, the introduction of " S-type" feedback control circuit power amplifier to achieve ultra-precision current control, with precise flow capacity expansion, low disorder, there is stepping at the same time and expanded with rich precision current source. ADC sampling after completion of output current display, and output cover 0 ~ 2A, the current source is an ideal solution.

名称：液晶显示密码锁                 * *  晶振:12MHZ                            * *  修改：无                          * *  内容:第一行显示固定密码，第二行显示输入密码，密码输入完毕后会* *       有正确或者错误提示,为了演示方便，提示密码，输入密码部分 * *       也没有用星号代替。可以自行更换成星号