program interrupt signal

The application of multi-interrupt brings much convenience to design program and makes the processing time of program meet the requirement of the fast excitation control system of generator's responding to signal.

多个中断的嵌套调用，为程序的设计带来了极大方便，使各种服务程序的执行时间满足快速发电机励磁控制系统对信号响应时间的要求。

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Software design, including SCI communication interrupt service subprogram, capture interrupt service subprogram, Timer interrupt subprogram, A/ D acquisition subprogram, consulting service program, and signal process subprogram.

系统软件设计，包括SCI通信中断子程序、捕捉中断子程序、定时器中断服务和A/D采样子程序、系统查询服务程序，以及采样数据最终的处理子程序等。

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Being different from the existing measurement method for A/ V delay, the system does not produce random noise to interfere audio test, and does not need video test signal to interrupt live program.

与现有测定A/V延时的方法不同，它不存在干扰音频测试的随机噪声，也不需要中断实际节目的视频测试信号。

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Control system software of upper PC was compiled with VB6.0, system program of the intelligent traffic signal machine was compiled with assemble language, timing interrupt service routine was partitioned into 100ms, 0.5s and 1s program segment.

上位机控制系统软件用VB6.0编程，信号机系统程序用汇编语言编写，其定时中断处理程序分为100ms，0.5s和1s程序段。

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The key modules are as follows: the main program, timer interrupt initialization subroutine, AD initialization subroutine, DMA interrupt subroutine and signal preprocessing subroutine.

给出了完整的软件设计，主要模块有：主程序设计、定时器中断子程序、A/D初始化子程序、DMA中断子程序和信号预处理子程序。

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