直流稳压加保护

说明：  ATSHA204A加密芯片详细使用方法！ 保护您的程序不被抄袭。(ATSHA204A encryption chip detailed use method! Protect your program from plagiarism.)

说明：  提供一个基于瑞昱RTL8382L24口交换芯片的24口+2光口的千兆交换参考设计。包括基于Cadence平台设计的原理图、PCB和RTL8382L、RTL8281B的技术手册。(A Gigabit switching reference design based on 24 + 2 optical ports of Ruiyu RTL8382L24 switch chip is provided. Including the schematic design based on the Cardence platform, PCB and RTL8382L, RTL8281B technical manual.)

对delta sigma进行设计，实现delta sigma ADC的设计(this is use for delta sigma adc ,and design and achieve adc)

说明：  基于单片机的电阻、电容、电感测试仪 可测电容，电感，电阻等元器件的值(Resistance, Capacitance and Inductance Tester Based on Single Chip Microcomputer)

说明：  用PSIM实现基于扰动观测法的MPPT最大功率点追踪(Use psim to achieve the goal of mppt)

串口 的 ucos 驱动编程,应该比较有用(ucos serial driver CommGetChar CommGetTxChar CommPutChar CommBufInit)

基于STM32F407实现人脸识别和指纹识别的考勤系统硬件设计。(Hardware Design of Time and Attendance System Based on STM32F407 for Face Recognition and Fingerprint Identification.)

Basic principle of LDPC code and FPGA implementation of LDPC code

常用的DIP28封装库，适用于Autium Designer 的元件常用PCB封装(Common dip28 package library, common PCB packaging for autiumdesigner components)

rtl8370单芯片8口千兆交换机原理图(Rtl8370 single chip 8 gigabit switch schematic diagram)