ARM basic knowledge, I have just found. And the U.S. share of

c8051f020实现io口的接收和输出-c8051f020 to achieve io port to receive and output

TQ2440A开发板的KEILMDK的裸跑测试例程，包括串口测试，液晶测试-TQ2440A development board to run test routines KEILMDK bare, including the serial test, liquid crystal test ..

一个很好用的韦根码测试程序，使用LPC2132的中断接入韦根信号，串口输出数据到PC，可以用串口调试助手接收数据检测韦根码，很实用的-Wiegand used a very good test procedure code, the use of Wiegand access LPC2132 interrupt signal, the serial output data to the PC, can be used to receive data serial debugging assistant Wiegand detection code, it is useful

easyarm2013工程模板，这是为开发lpc2103写的模板-easyarm2013 project template for the development of lpc2103 This is the template Writing

AT91RM9200_read_ADS7843代码，AT91RM9200_read_ADS7843代码-AT91RM9200_read_ADS7843 code AT91RM9200_read_ADS7843 code

2410开发板配套实验程序第一集，请下载使用-2410 development board supporting experimental procedure the first episode, please download

网上找来的 STM32F103的简易串口驱动(查询方式) -Online found the STM32F103 simple serial driver (inquiry method)

基于博创实验箱9个实验源代码。-Bo Chong-based experimental boxes nine experiments source code.

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TI DM648 DMA配置源代码,可以下接下到板子上,非常不错-TI DM648 DMA configuration source code, you can take to the board on the next, very good