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跑马灯的是加另一方面 虽加国是非曲直呆中 核电站喑 临时工地区性一落千丈一落千丈 于是 大工业夸大 地区性...
跑马灯的是加另一方面 虽加国是非曲直呆中 核电站喑 临时工地区性一落千丈一落千丈 于是 大工业夸大 地区性-Bomadeng the other hand, although the increase is Canadian merits of nuclear power plant managers were spent TWA regional drop a 1000 comeback Tabla therefore exaggerated large industrial district
- 2022-02-04 02:13:46下载
- 积分:1
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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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声音处理声音处理的声音处理声音
声音处理~ 声音处理~ -voice handle voice processing ~ ~ ~ voice processing voice-processing voice processing
- 2023-05-21 06:20:03下载
- 积分:1
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voltimeter +串口通信PIC16F690
Voltimeter + serial communication to PIC16F690-Voltimeter+ serial communication to PIC16F690
- 2023-08-23 14:20:04下载
- 积分:1
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汇编移位操作,asm文件演示如何进行移位操作
汇编移位操作,asm文件演示如何进行移位操作-Compilation shift operation, asm files demonstrate how to carry out shift operation
- 2022-01-31 14:32:18下载
- 积分:1
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片机电子钟的计时脉冲基准是由外部晶振的频率经过12分频后提供,采用内部的定时/计数器来实现计时功能。所以,外接晶振频率精确度直接影响电子钟计时的准确性。...
片机电子钟的计时脉冲基准是由外部晶振的频率经过12分频后提供,采用内部的定时/计数器来实现计时功能。所以,外接晶振频率精确度直接影响电子钟计时的准确性。 -Machine electronic time clock pulse baseline is by an external crystal oscillator frequency, after 12 minutes after the frequency, using an internal timer/counter to achieve the timing function. Therefore, the external crystal frequency accuracy of a direct impact on the accuracy of the electronic time clock.
- 2022-02-03 05:24:56下载
- 积分:1
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Frequency meter (51 single
频率计(51单片机开发例子子程序汇编语言编写)-Frequency meter (51 single-chip development to prepare examples of assembly language subroutines)
- 2022-03-19 16:02:30下载
- 积分:1
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伟福LAB2000单片机仿真系统直流电机控制:利用实验仪上的D/A变换电路,输出...
伟福LAB2000单片机仿真系统直流电机控制:利用实验仪上的D/A变换电路,输出-8V至+8V电压,控制直流电机。改变输出电.压值,改变电机转速,用8255 的PB.0 读回脉冲计数,计算电机转速。在电压允许范围内,直流电机的转速随着电压的升高而加快,若加上的电压为负电压,则电机会反向旋转。本实验仪的D/A变换可输出-8V到+8V的电压,将电压经驱动后加在直流电机上,使其运转。通过单片机输出数据到D/A变换电路,控制电压的高低和正负,观察电机的旋转情况。
在电机转盘上安装一个小磁芯,用霍尔元件感应电机转速,用单片机控制8255读回感应脉冲,从而测算出电机的转速。
-err
- 2022-12-26 21:15:03下载
- 积分:1
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linux 驱动程序 解压密码:1234567890
linux 驱动程序 解压密码:1234567890 -linux driver unpacked Password : 1234567890
- 2022-10-28 14:05:03下载
- 积分:1
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交通灯的变换
交通灯的变换----汇编语言实现-Traffic lights change---- assembly language to achieve
- 2022-07-13 04:21:29下载
- 积分:1