文件名称:experiment2
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Intel8253应用——发声控制
Intel8253通道工作过程是：按本通道中给定的初值n，对输入时钟信号频率f进行n分频，输出频率为F的分频信号，即F＝f/n. 从而在通道输出引线周围产生一种与频率F波形对应的电磁波，若用此电磁波控制一扬声器，则可听到与该电磁波对应的声音。-Intel8253 applications- voice control channel Intel8253 process is: according to the channel in a given initial value n, of the input clock signal frequency f for n sub-frequency, output frequency of F sub-frequency signal, that is, F = f/n . in order to lead around the channel outputs to produce a frequency F and the corresponding electromagnetic wave, if the use of this electromagnetic wave control of a loudspeaker can be heard with the electromagnetic wave corresponding to the voice.
Intel8253通道工作过程是：按本通道中给定的初值n，对输入时钟信号频率f进行n分频，输出频率为F的分频信号，即F＝f/n. 从而在通道输出引线周围产生一种与频率F波形对应的电磁波，若用此电磁波控制一扬声器，则可听到与该电磁波对应的声音。-Intel8253 applications- voice control channel Intel8253 process is: according to the channel in a given initial value n, of the input clock signal frequency f for n sub-frequency, output frequency of F sub-frequency signal, that is, F = f/n . in order to lead around the channel outputs to produce a frequency F and the corresponding electromagnetic wave, if the use of this electromagnetic wave control of a loudspeaker can be heard with the electromagnetic wave corresponding to the voice.
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experiment2.asm