Master and Slave Example Protocol Design for mcs

AT89C51与ISD4004的接口及录音放音程序设计，控制4004-AT89C51 ISD4004 interface with recording and playback process design, control 4004

实用的单片机实现软件滤波方法及示例程源代码 -Realize practical single-chip microcomputer software filtering method and sample code CHENG Yuan

单片机用T1中断在IO口P1.0输出乐曲(在P1.0口与VCC间接一喇叭即可听到) 1.由于输出的是方波，比较难听:-)你也可以将波形细分用DA输出正弦波 2.由于T1频繁中断，任何其他中断发生都会是乐曲打顿，只适合试验 3.优化音符编码：一个字节中包含节拍、音符、升降调，可区分数据和命令 -Single-chip microcomputer used in the IO port T1 interrupt output music P1.0 (P1.0 port with VCC in the indirect one can hear the speaker) 1. As the output is a square wave, more bluntly :-) You can also fine-waveform DA output sine wave with sub-2. Due to the frequent interruption of T1, any other interruption occurs Dayton will be playing music, is only suitable for test 3. optimized coding notes: A byte contains rhythms, notes, take-off and landing tune can distinguish between data and command

MSP430 串口通讯 利用查询实现，经运行通过-MSP430 serial communication using Query, running through

简单的12864（控制器ST7920）液晶显示模块并行和总线方式控制c语言源程序-Simple 12864 (controller ST7920) liquid crystal display modules in parallel and bus control c language source code

利用c8051f020单片机进行串口通讯的软件程序，此型单片机将会成为8位机主流-by Using C8051f020 MCU for serial communication software program, this type of SCM will become mainstream eight-

/*------------------------------------------------------------------------------ 源文件 / 文字 : AVR 宽×高（像素）: 40×24 字模格式/大小 : 单色点阵液晶字模，纵向取模，字节倒序/120字节 数据转换日期 : 2004-8-13 ------------------------------------------------------------------------------*/ -/*------------------------------------------------------------------------------ 源文件/文字 : AVR 宽×高（像素）: 40×24 字模格式/大小 : 单色点阵液晶字模，纵向取模，字节倒序/120字节 数据转换日期 : 2004-8-13 ------------------------------------------------------------------------------*/

at89c2051制作的超声波测距源程序，经本人检测程序无误，测距精度在10CM以内-AT89C2051 Ultrasonic Ranging source produced by the testing procedures I correct location accuracy within 10CM

NOKIA3310显示屏中文说明，厂家中文的说明。-NOKIA3310 display Chinese that the Chinese manufacturers note.

开发环境：IAR Embedded Workbench Version: 3.21A 功能 使用msp430的定时器A产生信号控制led闪烁 做适当改进可用于其他-Development environment: IAR Embedded Workbench Version: 3.21A function using MSP430 timer A control signal led flashes can be used to make appropriate improvements in other