51yejing

了解SINAD、ENOB、SNR、THD、THD + N、SFDR，不在噪底中迷失。用于定量表示ADC动态性能的常用指标有六个，分别是：SINAD(信纳比)、ENOB(有效位 数)、SNR(信噪比)、THD(总谐波失真)、THD + N(总谐波失真加噪声)和SFDR(无杂散动态 范围)。(Learn SINAD, ENOB, SNR, THD, THD+ N, SFDR, lost not noise floor. For quantitative expression commonly used indicators of the dynamic performance of the ADC six are: SINAD (SINAD), ENOB (effective number of bits) and SNR (signal-to-noise ratio), THD (total harmonic distortion), THD+ N ( The total harmonic distortion plus noise) and SFDR (spurious-free dynamic range).)

说明：  RTD2660 source code failed

说明：  51单片机开发，AD转换模块 ，模数转换，高精度(51 MCU development, AD converter module, analog-to-digital conversion, high-precision)

485的msp430通讯,包括主机和从机的程序.多机通讯,例子是三个弹片机,可以扩展多个,硬件终端电阻要求120,(485 Controller communications, including mainframe and from the plane procedures. Multi-machine communication, shrapnel example is the three aircraft that can extend multiple hardware requirements terminal resistor 120,)

各种863.973项目申请书，对项目申请很有借鉴意义(Application of various project 863.973, is a reference for the project application )

STM32 4路AD+5110显示 ( )

红外的收发测试。。通过2路红外发射，顺序接收，检测收发功能是否正常(Infrared transceiver test. . 2-way infrared transmitter, received out of sequence detection transceiver function is normal)

说明：  可以通过图片制作自己想要的东西,大家可以自己制作U盘。(You can make what you want through pictures, and you can make your own U disk.)

说明：  STM32F407+串口接收数据采用DMA方式 六路串口(Stm32f407 + serial port adopts DMA mode six channel serial port to receive data)

使用15单片机测量ne555的频率，频率范围 1--20000hz(Measuring the frequency of NE555 with 15 single chip microprocessor in the frequency range of 1-20000hz)