speed timer

The system software involves five main modules: initialization module, phase-changing module, current-regulating module, speed-regulating module and timer interrupt module.

软件分为五块：主程序中的初始化模块、换相子程序模块、电流调节、速度调节子程序模块，定时器中断程序模块。

The performance testing of the real-time operating system ( RTOS) μ C/ OS includes the speed of message transferring and the speed of task switching and timer interrupt handling, the speed of signal task synchronization, and its functions are completed by compatible PC.

嵌入式实时操作系统μC/OS-II的性能测试对象包括消息传输、任务切换和时钟中断处理时间，及信号任务同步速度，由两台兼容PC完成。

The speed can be controlled by regulation of timer.

用定时器调节,控制速度.

By using the high speed timer/ counter of NI company, the pitching and flat pose control system of MSBS was introduced in this paper. The bracket of this system contained step motion of CCD line array situation sensor.

介绍了利用NI公司的高速定时器/计数器以及含步进电机的CCD线阵列式位置传感器支架来实现的磁悬挂天平的俯仰和平动姿态控制系统。

In the process the multithreading, timer, double-buffer and synchronous object etc have been used, the system stability and real-time quality are effectively assured, the function of high speed digital image card is realized by digital I/ O card.

在实现过程中采用了多线程、定时器、双缓存和同步对象等技术，有效保证了光谱数据采集、存储与显示的稳定性、实时性，用高速数字采集卡实现了高速数字图像采集卡的功能。