全面介绍了RTX51系统，中文的，强烈推荐

通过RS485端口不停地发送数据0xaa,用示波器观察RS485端口A、B信号线上的波形或者用RS485接收器接收发送的字符。-Through the RS485 port to send data continuously 0xaa, use oscilloscope to observe RS485 ports A, B signal waveform online or send RS485 receiver to receive characters.

ECC 源程序，这个是可以为大家选择下载，方便有关NANDFLASH开发的人员-ECC source code, this is for you choose to download, to facilitate the development of staff NANDFLASH

LPC2132开发板，protel99格式，包括原理图和PCB图-LPC2132 protel99 SCH PCB

常用ARM指令集及汇编-commonly used ARM instruction set and compilation

ARM9200开发板的ROM boot程序源码1.0-ARM9200 development board of the ROM boot process source 1.0

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高速热敏打印机驱动代码，包含如何调用字库，传送字符，驱动电机，驱动切刀，包括初始化代码，检查切刀位置代码，打印字符宽度控制，字库存储在flash中

使用ATMEL AT91RM9200 CPU SDRAM初始化的一个例子。可以运行，初始化之后CS1的0x20000000地址可以访问。内部以文件的形式(Init_SDRam.txt)集成了ADS初始化命令配置，使得本工程可以直接下载到0x20000000地址运行，而不必限制于内部RAM。配置文件在AXD->Option->cfgInterface->session file中配置。祝好运，好使的话请给个推荐。-ATMEL AT91RM9200 CPU SDRAM using an example of initialization. Can run, after initialization CS1 can visit the 0x20000000 address. To document the form of internal (Init_SDRam.txt) integrated command initialization ADS configuration, makes this project can be directly downloaded to address 0x20000000 running, without having to be restricted to the internal RAM. Configuration file in the AXD-

asd_at91rm9200设计,原理图,希望对大家有用-asd_at91rm9200 design, drawings, it may be useful to hope

一些测试代码，可供参考。DMA、flash、IIC、lcd、mmu、Nand、RTC等。