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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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asm the notebook, very good
asm的记事本，很不错-asm the notebook, very good
- 2022-03-25 12:50:32下载
- 积分：1
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汇编语言程序设计入门学习，学习汇编语言的好教材
汇编语言程序设计入门学习，学习汇编语言的好教材-assembly entry
- 2022-10-31 12:25:03下载
- 积分：1
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dsp good under development seeks single sideband modulation procedures
dsp c32下开发的waver单边带调制程序-dsp good under development seeks single sideband modulation procedures
- 2023-05-16 18:10:03下载
- 积分：1
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用51单片机实现音乐播放的源代码，能够播放“祝你平安”和“八月桂花香”...
用51单片机实现音乐播放的源代码，能够播放“祝你平安”和“八月桂花香”-play music by C51
- 2022-04-10 17:10:29下载
- 积分：1
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推箱游戏程序源码
推箱游戏程序源码-pushing boxes Games FOSS
- 2023-01-04 13:10:03下载
- 积分：1
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TAJIMA binary pattern of linking documents, documents linking two tricks into a...
田岛二进制的花样文件的连接，二个花样文件连接成一个花样文件，请大家多多指点，谢谢。-TAJIMA binary pattern of linking documents, documents linking two tricks into a pattern file, Members can kind, thank you.
- 2023-02-11 16:00:03下载
- 积分：1
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电子密码锁 源程序
电子密码锁 源程序
电子密码锁 源程序
电子密码锁 源程序-Electronic Code Lock source
- 2023-07-20 09:25:03下载
- 积分：1
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using 4bit MCU winbond w921c400 and 840 to achive 10 channel CT0 cordless phone
using 4bit MCU winbond w921c400 and 840 to achive 10 channel CT0 cordless phone-using 4bit MCU winbond w921c400 and 840 to a chive CT0 10 channel cordless phone
- 2023-08-02 17:50:03下载
- 积分：1
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汇编语言编写的记事本
汇编语言编写的记事本-assembly language prepared by the Notepad
- 2022-04-20 22:26:34下载
- 积分：1
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