mpc2872系列的usb controller产生sof源码

C51遥控测试程序,电路已经认证合格,请多提意见-C51 remote control test procedure, the circuit has been certified, please do so

这是本人以前用C51做的TCP/IP协议,也是借鉴了一些前辈的东西,,,,绝对可用!-this is my previously C51 do TCP/IP protocol, as well as from some older things,, absolutely available!

我写的ARM PS2驱动程序，使用普通GPIO口模拟PS2协议，可直接驱动键盘、条码找描枪等设备，并将从键盘、条码扫描枪等输入的信号通过UART口传至PC机-I write ARM PS2 driver, I use ordinary GPIO simulation PS2 agreement can be directly driven keyboard, bar code depiction find guns and other equipment, and from the keyboard, barcode scanning guns and other input signals through UART I conveyed to PC

Validate Baud rate s accuracy this program will show from FF to 00.

应用背景 现有的RTC芯片采用年-月-星期-日-时-分-秒的输出输入格式，而嵌入式系统中很多需要校准时间的地方采用的来源是自1970年以来 的秒数或毫秒数。所以需要对这两种格式的数据进行转换。 关键技术 UTC转换毫秒数时采用累加计时实现，需要注意闰年时的月份天数或全年天数累加，最后换算为毫秒数，毫秒数转换为 UTC时间时将毫秒数截断为年，月，天，最后直接转换为当天的时间。

Discussing embedded systems in general is difficult, because each embedded system is unique. Rather than presenting a list of general principles for handling embedded development issues, this book presents examples of problems encountered and solutions to those problems using real hardware and software. In that sense, it is a “cookbook” for developers that offers design “recipes” that can be elaborated on or modified as needed to solve other design problems.

是Linux的改写，是实现文件的修改的功能的系统-Linuxbanbendeqianrushikaifa、、、

一个基于pic单片机的外部flash 的驱动代码-Pic based on the external flash microcontroller Driver code

中断方式 单片机 c语言编写 48位并行接口ADC080X的接口与驱动-Interrupt Singlechip c language ADC080X parallel interface 48 interfaces with the driver

本人编写的FPGA光电编码器输入模块,没有实验,但仿真基本实现,希望有参考价值.-FPGA optical encoder input module, there is no experimental, but simulation technology, hope to have reference value.