通过汇编实现的软I2C通讯代码，希望对大家有参考意义

8051-cd rom

330PWM输出的简易程序，供C8051F330的初学者参考

语音芯片ISD1420的C语言程序，实现简单的语音存储与播放。在KEIL下运行-ISD1420 voice chip of the C language procedures realize a simple voice storage and playback. Run in KEIL

该程序用于控制电机的速度,通过占空比PWM来实现该功能.-The program used to control motor speed and PWM duty cycle to achieve through this feature.

红外线遥控程序，可以读出遥控器代码值并显示在数码管上。-Infrared remote control procedures, you can read out the remote control code value and display in the digital pipe.

pic 单片机红外接收分析仪的资料，弹片届软件部分，pdf文件格式，请参考使用-pic microcontroller infrared analyzer to receive the information, shrapnel-software segment, pdf format, please refer to the use of

使用protel99软件编辑的原理电路图，希望对各位有助于电路图的学习和开发-The use of the principle of circuit protel99 software editor, in the hope you will help the study and development of circuit

arm(44b0)端口初始化,在程序里面有较多的注释部分, 在具体情况下可用-arm (44b0) port initialization, the procedure has more notes inside part can be used in specific circumstances

DS18B20测量温度 1602做为液晶显示温度 c语言编写 有注释-DS18B20 measuring temperature as a liquid crystal display 1602 temperature c languages have Notes

通过51单片机产生不同频率的信号，在喇叭上产生不同频率的声音信号，实现不同音乐播放-Through 51 different single-chip frequency signal generated in the speaker s voice signals at different frequencies, different music player