单片机音乐播放程序，附带三首已编音乐代码，音乐调声可调...

一个基于单片机的系统设计，快热式电热水器的-MCU-based system design, fast heat-type electric water heaters

MSP430f169的内部DAC12双通道数模转换的模块化程序！-DAC12 internal MSP430f169 dual-channel digital-to-analog conversion of the modular program!

一个通过方向判别芯片进行角度计算的程序，实现简单的方向判别功能-Determine the direction of a chip through the perspective of the calculation procedure, the direction of the realization of a simple discriminant function

本程序用于用单片机控制步进电机的转动。用单片机的某一个引脚实现控制，如果引脚电平为高则实现正转，反之为反转。所用单片机为日立系列h83664十六位单片机。本代码使用c语言实现，开发环境为日立系列单片机专用开发环境-This procedure for the use of single-chip stepper motor rotation control. With a pin MCU control, if the pin level is higher then realize to the contrary, for the inversion. Used in single-chip for Hitachi Series 16 Singlechip h83664. This code uses the c language, development environment for the Hitachi series of single-chip dedicated development environment

AVR的引导程序。 chip45boot s-record bootloader.-AVR guidance procedures. Chip45boot s-record Bootloader.

ATMEL的24C04-512的通用应用程序，实际应用完全可行可靠的，稍加修改就可用在自己的C文档中！-ATMEL

PIC16F71 C语言的ADC示例程序。已附上详细说明。

03年全国大学生电子设计竞赛智能小车mega16源代码-2003 National Undergraduate Electronic Design Contest smart car mega16 source code

本程序主要通过外部中断INT0及3.3端口读取PS2键盘值并通过LCD1602显示，键扫描码的解码通过数组方式解码，程序的解码功能主要针对数字及大小写字母和常用标点符号 硬件描述：PS2键盘的时钟线（clk）接89S51的INT0（P3.2）,数据线data接（P3.3） LCD的控制端口分别为： RS = P2^7，RW = P2^6，EP = P2^5，数据端口为P0，液晶显示偏压VL必须接 -This procedure mainly through external interrupt INT0 and 3.3 read PS2 keyboard port value through LCD1602 display, key scan code decoder way through an array of decoding, the procedure for decoding function of the major figures and upper and lower case letters and punctuation marks commonly used hardware description: PS2 keyboard clock line (clk) then 89S51 the INT0 (P3.2), data lines data access (P3.3) LCD control port, respectively: RS = P2 ^ 7, RW = P2 ^ 6, EP = P2 ^ 5, data ports for the P0, LCD bias VL must be received

串口通讯的XModem协议源码，有兴趣的朋友可以参考！-serial communications IEEE-source agreement, interested can refer friends!