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ad7991测试程序，需要自己填写控制字(ad7991 testing procedures need to fill their own control word)

实现数码管0-7的静态显示，采用c语言编写。(play led)

这是一个虚拟串口和红外口的例子的源代码。(This is a virtual serial port and infrared mouth of the source code examples.)

以上是二维傅里叶变换程序源代码 还有傅里叶反变换(These are the two-dimensional Fourier Transform source code for inverse Fourier transform)

说明：  ＭＳＰ４３０Ｆ４４９的硬件乘法器操作IAR Practice code(MSP430F449 hardware multiplier operation code IAR Practice)

《 单片机应用技术(C语言版)(工业和信息化高职高专“十二五”规划教材立项项目)》素材文件 (" SCM technology applications (C language) (Industry and Information Technology College" 12th Five-Year Plan " textbook project project) material file)

此代码是关于利用51单片机实现步进，滞留等程序的参考用。(This code is on the use of 51 single-chip stepper, detention and other procedures for reference.)

DDS9850，亲测可用，有中文解释，信号发生器(DDS9850, pro-test is available, there are Chinese explanation, the signal generator)

扫描4X4键盘,并将键值在数码管和8个LED上显示,同时将键值通过串口或RS232端口或USB发送给PC机接收并解码来自标准键盘的基本按键的扫描码。(4X4 keypad scanning, and key in the digital tube and eight LED display, while the key through the serial port or RS232 port or a USB send the PC to receive and decode the scan code of the key from the standard keyboard.)

通过NXP NFC Reader IC RC523 读取Felica (NFC TYPE 3)card，配合NXPRdLib使用（NXP官网下载） (Read Felica(NFC TYPE 3)card with RC523)