本代码是基于PXA270开发板的I2C总线驱动程序

ARM 嵌入式测试例程，指导材料，每一章已经测试汇编语言编程，对初学者很有用

点阵液晶12*128驱动-dot-matrix LCD driver 128 12*

IO口模拟串口通讯C源程序-IO mouth simulation string mouth communication C source program

ACM-12864汉字液晶显示驱动程序-ACM- 12864 Chinese character LCD Driver

24C01的IIC 读写的c51程序 为了安全起见,程序中很多NOP是冗余的,能进一步精简,但必须经过验证。 Atmel 24C01 比较特殊,为简约型. 51晶振为11.0592MHz-24C01 the IIC reading decoder procedures for the sake of safety, NOP process is a lot of redundancy that can be further streamlined, it must be tested. Atmel 24C01 rather special type of minimalism. Crystal Oscillator 51 to 11.0592 MHz

多种中文点阵字库，适合嵌入式系统开发 包括16×16点阵和24×24点阵-A variety of Chinese dot-matrix font, suitable for embedded system development, including 16 × 16 lattice and 24 × 24 dot matrix

单片机实现软件滤波,通过编程,比硬件灵活.-Single-chip filtering software, by programming flexibility than hardware.

HID 的读取和写入中断，这是一个示例代码。埃斯特角 es 联合国缔约国 de ejemplo desarrollado 段 microcontroladores pic de michrochip de la familia 18f。El 缔约国 se realizo en 串口，联合国 privativo de mikroe。

单片机复位电路的可靠性设计复位电路的基本功能是 系统上电时提供复位信号直至系统电源稳定后撤销复位信号为可靠起 见电源稳定后还要经一定的延时才撤销复位信号以防电源开关或电源插头分-合过程中引起的抖动而影 响复位-MCU reset circuit reliability design of the circuit" s basic function is to reset the system power-on reset signal until the system is to provide stable power to withdraw the sake of the reset signal as a reliable power supply stable even after a certain delay to revoke a reset signal to prevent the power switch or Power plug points- combined jitter caused in the course affected by reset

linux下的外围键盘及led驱动程序，对于学习嵌入式arm linux编程有帮助-linux under the external keyboard and led driver, learning Embedded Linux programming arm help