AVR单片机,Protues仿真文件,检测按键,点亮LED

单片机开发版的原理图，比较详细了-MCU development version of the schematic diagram, in greater detail in

51系列单片机LCD液晶显示程序-51 MCU LCD display program

音乐兰花草播放演示，汇编编写，用的是扬声器，不是蜂鸣器!-Music orchids player demo, compilation of writing, using a speaker, not the buzzer!

Ucos2在80c51f上的移植-Ucos2 in the transplant 80c51f

1.电子琴功能 用实验板上K1~K7作为电子琴的7个按键，每个按键对应一个音符要求当按下其中一个按键，就通过P2.5口输出对应频率信号使蜂鸣器发出特定音符声音。 2.乐曲演奏 若按下K8键，完成自动弹奏“送别”歌曲。 -1. Organ function of the experimental board K1 ~ K7 as the organ of the seven buttons, each button corresponds to a note of which require that when the press of a button, on the adoption of P2.5 port output frequency signal corresponding to a specific note to the buzzer sounds . 2. Music playing, if pressed K8 button to complete the auto-play " Farewell" songs.

[原创]PIC单片机完成格雷(Golay)编码的源码.-[original] PIC completed Gray (Golay) encoding the source.

keil c51在编译的时候会将0xfd的字符(有些汉字含该字符的内码)过滤, 而导致程序出错.特别是在做液晶汉字显示时. 针对这个bug.由网友编写了这个补丁. 请下载之后放到你的keilc51in 目录里,运行这个程序.就可以了. 支持v8.02-keil c51 will be at compile time 0xfd characters (some characters with the character code) filter, which led to error. particularly in the so LCD display Chinese characters. To address this bug. prepared by the users of the patch. Please after download put your keil c51 bin directory, run the process. it. support v8.02

单片机复位电路的可靠性设计,介绍了在单片机应用中需要用到的一些比较安全的复位方式-The reliability of single-chip reset circuit design, introduced in the single-chip applications need to resort to some relatively safe ways reset

关于电路设计的几点经验，从原理设计到实际应用，对一些个问题、经验综述-Points on the circuit design experience, from design to practical application of the principle of some question, synthesis of lessons learned

1.利用PWM控制占空比实现LED的亮暗。 2.可以用UP DOWM键进行控制亮暗。 -1. The use of PWM duty cycle control to achieve the bright LED dark. 2. Can be used to control button UP DOWM bright dark.