hi3521a-datasheet.tar

CH376例程，基于STM32处理器，模拟SPI工作方式 (CH376例程，模拟SPI工作方式 )

AD公司的锁相环芯片ADF4350的开发例程(Example code for ADF4350)

说明：  AT17C256的I2C读写源程序，可实现一系列I2C的读写，ARM平台下此EEPROM的驱动(AT17C256 I2C literacy source, the realization of a series of I2C reader, ARM platform drive this EEPROM)

基于东南大学开发的SEP3203的ARM7中的所有驱动，可以学习ARM7的驱动写法，(Southeast University, based on the ARM7 development SEP3203 all drivers, the drivers can learn ARM7 wording)

说明：  个人改编的4X4矩阵键盘，不考虑弹起，有兴趣者可下载研究(Personal adaptation of 4x4 matrix keyboard, regardless of bounce)

The latest source of the Jedi survival drive, non original visual available. To the friends who play the Jedi

为适应这种通信模式，同时实现高效、差错控制的基本要求，国际上制定了RTCM 10403.2标准(In order to adapt to this kind of communication mode, and realize the basic requirements of high efficiency, error control, established RTCM 10403.2 on international standards)

本文从学习者的角度出发,分别描述了下面几部分内容: ARM 编程的基本知识,BOOT 代码流程和功能分析,OS 中断程序的编写举例 和 BOOT 代码的流程图,希望这些内容能为初学 ARM 的朋友拨开迷雾,以最快 的速度和最短的时间走进嵌入世界的大们.(From the learner' s point of view, describe the contents of the following sections: ARM basic knowledge of programming, BOOT code flow and functional analysis, flow charts and code writing OS BOOT interrupt routine, for example, hope this can do for the beginner ARM friends fog, with the fastest speed and shortest time into the embedded world are big.)

nrf2401的相关文档和源程序 nrf2401模块原理图 pcb图 (the nrf2401 documentation and source code module nrf2401 schematic pcb map)

1、基于stm23f103c8t6的开发板开发，外接rc522读卡板。 2，实现让windows系统把设备认成hid键盘，当刷M1卡时，把4字节的卡号以键盘输入的形式上送到电脑。 3，已在xp，win7系统上测试。把鼠标放在文本输入框中，刷卡，卡号即可显示在文本框中，并回车换行。(1, based on the stm23f103c8t6 development board development, external rc522 read card board. 2, to achieve the windows system to recognize the device as HID keyboard, when you brush the M1 card, the 4 byte card number in the form of keyboard input to the computer. 3, has been tested on the XP, win7 system. Put the mouse in the text input box, swipe the card, the card number can be displayed in the text box, and enter the line feed.)