单片机控制实现的信号发生器，能产生方波、三角波等

这个源代码是关于MCS-51的无线接收，用89S52控制MT8870B进行DTMF解码。程序相当的经典，本人调试了几周后，达到了非常好的效果。误码率相当的小。我觉得好东西要大家分享的，所以今天我上传此代码，与大家共同分析进步。-the source code is on the MCS-51 wireless receiver, S52 control with 89 MT8870B for DTMF decoder. Quite the classic procedure, I debug a few weeks later, to achieve very good results. The error rate is very small. I think that good things should be shared, so I upload this code, and the analysis of common progress.

51以串行方式驱动12864-51 源 蟹 式 12864

arm7开发源代码杂集.包含有一些ARM7的开发代码-arm7 miscellaneous set of open source. contains a number of ARM7 Development Code

本系统是一个设计较完善的家用全数字功率放大器。它采用了美国APOGEE公司最新的DDX直接数字放大技术，音质直逼高档模拟放大器，同时，为了扩大使用范围，系统进一步集成了模拟音频输入通道，便于没有数字音频信号的用户使用该系统。操作方面采用了大型的128*64点阵液晶显示模块和非常方便易用的旋转编码器，同时更具有遥控功能。软件方面，以Atmega16单片机核心，采用了全中文菜单显示，由旋转编码器和遥控器作为输入设备，旋转编码器和遥控器均可实现全功能的操作。-This system is a better designed home all-digital power amplifier. It uses the U.S. APOGEE" s latest DDX Direct Digital Amplification technology, sound quality almost equal to high-end analog amplifiers at the same time, in order to expand the scope of application, the system further integrates the analog audio input channels, there is no digital audio signals to facilitate users of the system. Operational use of a large 128* 64 dot matrix LCD display module and very easy to use rotary encoder, but also has a remote control function. Software, in order to Atmega16 microcontroller core, which features a full Chinese menu display by the rotary encoder and remote control as input device, rotary encoders and remote controls can achieve a fully functional operati

仿真马路交通灯通过keilproteus进行实时调试-Simulation road traffic lights for real-time debugging keilproteus

采用TOP227单片开关电源芯片实现的充电器，内附电路图-used TOP227 SMPS chip chargers, enclosing circuit

用8253-8255编写的定时响铃程序 可以定时两个时间点，很经典的程序-spent 8253-8255 prepared by the regular beep procedures regular two points in time, classic procedures

在C8051F930单片机上，利用端口匹配和PCA实现按键的长按、短按功能。-In the C8051F930 microcontroller, using the port matching and PCA to achieve a long button press, short press functions.

SDU的字库，主要包垮一些程序代码，很好用的，希望对大家有用-SDU

一款关于ISD4004语音芯片的开发实例，采用C语言编写，具有完整的 SPI 总线操作函数，一定会为你做ISD4000系列芯片的开发带来很大帮助-ISD4004 voice chip on a development instance, using C language, with a complete function of SPI bus operations, will definitely help you make ISD4000 series chips have a great help