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前面板vfd控制代码，嵌入式，高清播放机前面板。-Vfd front panel control code, embedded, high-definition player front panel.

这是一个AD转换程序，适合新手入门使用，简单易学，本人就是从这个简单例程开始学习AVR单片机， 希望对新人有帮助-This is an AD conversion process, suitable for beginners to use, easy to learn, I was from the beginning of learning this simple routine AVR microcontroller, would like to help newcomers

变压器概述-变压器经典文章（中文PDF）-outlined transformer- transformer classic article (Chinese PDF)

采用proteus实现无刷直流电机控制的仿真分析，驱动电路由ir2101和MOSFET管组成，主控芯片选用51单片机，keil编程实现，系统为开环控制方式。

KeilC编译测试通过STM32F103单片机实现的步进电机加减速算法

应用背景现在USB的使用越来越广泛，使用也方便，但是对于初学者会很难，我这里提供stm32的USB源代码，希望他对大家能有所帮助关键技术这是USB通信的源代码，内函上位机源代码和下位机源代码，下位机是有STM32驱动的，上位机是有VC写的，希望大家采纳

spi协议的驱动程序源代码-20 agreements driver source code

流畅的外扩Ram技术（参考CMD文件)，使程序的大小不受限制；成功移植并调试通过的嵌入式微实时操作系统UCOSII，用户仅按需填入相应的任务程序，使用极为方便-Ram technology fluency of foreign expansion (reference CMD file), make the program the size of the restriction the success of transplantation and debug of embedded micro-through real-time operating UCOSII, the user only to fill in the corresponding task on-demand program is extremely easy to use! !

单片机实现4×4键盘及8位数码管显示构成的电子密码锁，带有keil程序以及protuos的模拟电路。-SCM 4 × 4 keyboard and 8-bit digital tube display constitutes an electronic code lock with keil procedures and protuos of analog circuits.

atmel at91sam7s和7x下，开发文件系统的程序，可以开发u盘和sd卡文件读写应用-atmel at91sam7s and 6x, file system development process, u disk can develop and document literacy sd card application