freescale MC9S12XS128 PWM

DS1307 是用 8051 单片机的实时计时器接口。日期和时间显示在液晶显示器

键盘状态扫描函数 /* 键盘扫描函数 读取当前键盘的状态 有按键按下返回相应按键值 无按键按下返回"0x00" */ -Keyboard status scan function/* keyboard scan function to read the current state of the keyboard keys have a corresponding button press to return to the value of non-button press to return to

单片机51系列的串口通信例程,良好的模块说明.使你更容易全面掌握串口通信的操作.内部含相应的数码管操作.-51 series single-chip serial communication routines, a good description of the module. Make it easier for you complete control of the operation of serial communication. Internal with the corresponding digital control to operate.

采用等精度测频原理的频率计 要求： 设计一个用等精度测频原理的频率计。 频率测量测量范围1~9999； 其精度为 ； 用4位带小数点数码管显示其频率； 并且具有超量程、欠量程提示功能。-With equal precision frequency measurement principle of the frequency of meter requirements: design of a frequency measurement with the principle of equal precision frequency counter. Frequency Measurement Measuring Range 1 ~ 9999 its accuracy with four with a decimal point LED display its frequency and has a super-range, less range prompts.

c8051f040中比较器0调试程序，带中断处理和比较器状态crossbar输出源程序-C8051f040 comparator debug program, include interrupt process and comparator status. crossbar outputting the source program

一个含socket接口的小型tcp/ip协议栈-A socket interface containing small tcp/ip protocol stack

15-液晶LCM1602 15-液晶LCM1602 15-液晶LCM1602 15-液晶LCM1602 15-液晶LCM1602 15-液晶LCM160215-液晶LCM160215-液晶LCM1602

LCD driver 程序，供初学者学习。-LCD driver procedures for beginners to learn.

可以测量马达的实际转速,用的IC 是AT89C2051,也可以用于AT89C51-Can measure the actual motor speed, the IC is used AT89C2051, can also be used for AT89C51

一个arm7实验板上音频控制测试程序，此音频控制测试程序由c语言编写。-a arm7 experiment on-board audio control test procedures, this test program from the audio control c language.