sinamicro1

在Linux操作系统和ARM嵌入式实验系统环境下，分析linux下的键盘、LED驱动程序，编写一个应用程序，实现以下功能：在ARM开发板上按下数字键1、2、3时，对应启动模拟量AIN0、AIN1、AIN2采样，并把AD转换的结果从终端输出和LED显示。(Environment of the Linux operating system and ARM embedded experiment system, the Linux keyboard, LED driver, write an application, the following functions: ARM development board to press the number keys 1, 2, 3, corresponding to the start the analog AIN0, AIN1, AIN2 sampling and AD conversion results from the terminal output and LED display.)

android调用webservice.........(android use webservice)

用到 android反射相关方法 实现展开通知栏示例

qib_disarm_piobufs - cancel a range of PIO buffers.

基于ARM9的测试程序，用来测试TCP服务器的运行情况(ARM9-based test program used to test the operation of TCP server)

android Sax解析实例源码下载

android（顶端）选项卡

Allocates hardware buffers on the graphics card and fills them with data if a buffer has not already been previously allocated.

说明：  脉冲宽度调制是一种模拟控制方式，根据相应载荷的变化来调制晶体管基极或MOS管栅极的偏置，来实现晶体管或MOS管导通时间的改变，从而实现开关稳压电源输出的改变。这种方式能使电源的输出电压在工作条件变化时保持恒定，是利用微处理器的数字信号对模拟电路进行控制的一种非常有效的技术。脉冲宽度调制是利用微处理器的数字输出来对模拟电路进行控制的一种非常有效的技术，广泛应用在从测量、通信到功率控制与变换的许多领域中。(Pulse width modulation (PWM) is an analog control method, which modulates the bias of transistor base or MOS gate according to the change of load, so as to change the turn-on time of transistor or MOS and realize the change of output of switching regulated power supply. This method can keep the output voltage of the power supply constant when the working conditions change. It is a very effective technology to control the analog circuit by using the digital signal of the microprocessor. Pulse width modulation (PWM) is a very effective technology to control analog circuits by using the digital output of microprocessors. It is widely used in many fields, from measurement, communication to power control and conversion.)

andoird 读取PDF并翻页例子源码下载(含类库以及完整实例源码)