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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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LED显示屏驱动程序，接收字母符号汉字的内码，显示到显示屏上。...
LED显示屏驱动程序，接收字母符号汉字的内码，显示到显示屏上。-err
- 2022-06-02 07:40:38下载
- 积分：1
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Sensorless BLDC Motor Control Using dsPIC30F2010 1127KB
Sensorless BLDC Motor Control Using dsPIC30F2010 1127KB -Sensorless BLDC Motor Control Using dsPIC30F2010 1127KB
- 2022-04-18 04:16:42下载
- 积分：1
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查找硬盘坏扇区并快速标出坏扇区 （FindBad v1.3）
查找硬盘坏扇区并快速标出坏扇区 （FindBad v1.3）-you drive bad sector and the rapid deterioration marked Sector (FindBad v1.3)
- 2022-07-01 05:39:49下载
- 积分：1
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LCD 240* 128 T6963C C51 (1: the main program)
LCD 240*128 T6963C C51程序（1：主程序）-LCD 240* 128 T6963C C51 (1: the main program)
- 2023-02-06 00:30:04下载
- 积分：1
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vb和c++结合语言，相关程序
vb和c++结合语言，相关程序-vb and c combined language, procedures
- 2022-03-03 18:13:23下载
- 积分：1
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MCS
MCS-96单片机中断控制下的多道I_O程序。该程序完成4路采样，并在HSO线上给出相应PWM输出，P2.5上给出另一个PWM输出。-MCS-96 microcontroller suspended under the control of multi-channel I_O procedures. The procedures are completed 4 Sample Road and the HSO line is the corresponding PWM output dry weight is given another PWM output.
- 2022-11-08 23:55:03下载
- 积分：1
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洗衣机的说明文件 全自动型号 大厂定制 可控轨控制 正反向电机驱动...
洗衣机的说明文件 全自动型号 大厂定制 可控轨控制 正反向电机驱动-note washing machine models Dachang customized automatic controllable track to the pros and control motor-driven
- 2022-03-16 06:40:59下载
- 积分：1
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一个AD9851的驱动程序。并行时序。现在的程序和原理图…
一个AD9851的驱动。用的并行时序。
现在把程序和电路图发上来，大家帮帮我看看问题出在那里。谢谢了。
要是有做成功的能共享一下电路和程序感激！
main.c
-An AD9851 driver. Timing used in parallel. Now that the procedures and schematics hair up, everyone help me to see the problem there. Thank you. If success has to do to share about the circuit and procedures grateful! main.c
- 2023-03-18 21:55:03下载
- 积分：1
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单片机数字电容表C程序 想要具体电路的话发邮件给我
单片机数字电容表C程序 想要具体电路的话发邮件给我-Single-chip digital capacitors Table C procedures specific circuit if you want to email to me
- 2022-03-29 16:58:04下载
- 积分：1
