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First, the use of a keyboard display interface chip receive keys keys 8279, and...
一、 使用键盘显示接口芯片8279接收按键键值,并在七段数码管上显示出来,通过判断键值进入相应音乐播放处理程序。在音乐播放程序中,使用定时器/计数器8253的计数器2,使其工作在方式¬ ¬ 3―方波发生器,通过查表依次取出乐曲频率值送入计数器作为计数初值,经out2输出方波,驱动扬声器发出不同频率的声音,在每个音阶之间加入相应的延迟时间,即实现了音乐的播放。-First, the use of a keyboard display interface chip receive keys keys 8279, and Seven-Segment LED display, through to determine the corresponding music player keys to enter the treatment program. Procedures in the music player, use the timer/counter 2 counter 8253 to work in the way ? ? 3- square-wave generator, followed by out music through the look-up table values into the counter as a frequency count of the initial value, the output side out2 waves, driven loudspeakers of different frequency sound, in between each scale by adding the appropriate delay time, namely, the realization of the music player.
- 2023-03-17 05:55:03下载
- 积分:1
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采用samsung 9454做的电饭锅的小程序,已经批量生产。
采用samsung 9454做的电饭锅的小程序,已经批量生产。-Samsung 9454 using a small rice cooker to do the procedure, has been mass production.
- 2022-03-19 22:21:56下载
- 积分:1
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编译原理大操作。语言编译器实现。大歌剧院…
编译原理大作业。C语言编译器的实现。附大作业的doc文档说明部分。-compiler principles large operations. C language compiler achieved. A large operations doc file narrative.
- 2022-04-20 09:02:23下载
- 积分:1
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在集成电路中,通常采用T型解码网络实现数字量往模拟的转换,再利用运算放大器完成模拟电流变为模拟电压的转换。所以,要把一个数字量变为模拟电压,实际上需要两个环节,...
在集成电路中,通常采用T型解码网络实现数字量往模拟的转换,再利用运算放大器完成模拟电流变为模拟电压的转换。所以,要把一个数字量变为模拟电压,实际上需要两个环节,先把数字量变为模拟电流,这是由D/A转换器完成的;再将模拟电流变成模拟电压,这是由运算放大器完成的。有时D/A转换器芯片只包含前一个环节,有些D/A转换器则包含两个环节,用前一种芯片时,需要外接运算放大器才能得到模拟电压。-In integrated circuits, the usual T-decode digital networks to analog conversion, and then complete the simulation of the use of op-amp current into the analog voltage conversion. Therefore, it is necessary to become a digital simulation of voltage, in fact, need two links, first into a digital simulation of currents, this is determined by D/A converters completed then simulate current into the analog voltage, this is determined by computing completed amplifier. Sometimes D/A converter chip contains only a part before, some D/A converter includes two aspects, before a chip, the need for external op-amp voltage can be simulated.
- 2022-03-04 04:10:59下载
- 积分:1
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基于mips指令集矩阵乘法实现
基于mips64的指令集,采用汇编实现矩阵乘法,在模拟器上可以自行输入矩阵的行数、矩阵的列数等信息,
然后自己设计矩阵的数据进行计算,感觉实现还是比较灵活的,但是也可以再改进一下
- 2023-01-08 15:05:03下载
- 积分:1
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ex5_1 I
ex5_1 I-型线性相位FIR滤波器
ex5_2 II-型线性相位FIR滤波器
ex5_3 III-型线性相位FIR滤波器
ex5_4 IV-型线性相位FIR滤波器
ex5_5 矩形窗频响
ex5_6 希尔伯特变换器设计-汉宁窗
ex5_7 低通滤波器设计-汉明窗
ex5_8 带通滤波器设计-布莱克曼窗
ex5_9 低通滤波器设计-凯塞窗
ex5_11 频率采样技术:低通,朴素法
ex5_12 频率采样技术:低通, 最优法T1 & T2
ex5_13 频率采样技术:带通, 最优法T1 & T2
ex5_14 频率采样技术:高通, 最优法T1
ex5_15 频率采样技术:差分器
ex5_16 频率采样技术: 希尔伯特变换器
ex5_17 利用Parks-McClella算法设计低通滤波器
ex5_18 用PM算法进行的带通滤波器设计
ex5_19 用PM算法进行的高通滤波器设计
ex5_20 用PM算法进行的阶梯滤波器设计
ex5_21 用PM算法进行的差分器设计
ex5_22 用PM算法进行的希尔伯特变换器设计-ex5_1 I-type linear phase FIR filter
ex5_2 II-type linear phase FIR filter
ex5_3 III-type linear phase FIR filter
ex5_4 IV-type linear phase FIR filter
rectangular window frequency response ex5_5
Hilbert ex5_6 converter design- Hanning window
low-pass filter design ex5_7- Hamming window
ex5_8 bandpass filter design- Blackman window
ex5_9 low-pass filter design- Kaiser window
ex5_11 sampling frequency: low-pass, a simple method
ex5_12 sampling frequency: low-pass
- 2022-07-25 07:00:48下载
- 积分:1
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关于LCD液晶的开发应用等技术文章包括驱动程序,硬件开发等...
关于LCD液晶的开发应用等技术文章包括驱动程序,硬件开发等-LCD on the development and application of technical articles driver and hardware development
- 2023-04-21 03:20:02下载
- 积分:1
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Realize the storage and classification of the input points, and ultimately the f...
实现对分数的输入存储及分类,并最终以计数的形式在dos中显示!-Realize the storage and classification of the input points, and ultimately the form of innumerable dos to display!
- 2022-03-20 03:55:20下载
- 积分:1
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好的资料
好的资料-Good information
- 2022-05-22 03:50:44下载
- 积分:1
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一个使用coolbar的例子
一个使用coolbar的例子-an example of the use of coolbar
- 2022-02-26 21:29:20下载
- 积分:1