C8051F020的头文件，主要是本单片机的硬件地址指向等。

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msp320F247单片机的AD采样及液晶1602显示-msp320F247 SCM AD sampling and liquid crystal display 1602

DS1302读写一体化C51源程序 以下引脚定义部分根据实际接线情况作适当调整 sbit TIMECLK = P1^0 sbit TIMERST = P1^1 //禁止DS1302 sbit TIMEIO = P1^2 //释放数据总线-C51 source integration DS1302 to read and write the following definition of part-pin wiring in accordance with the actual situations properly adjust sbit TIMECLK = P1 ^ 0 sbit TIMERST = P1 ^ 1// prohibited DS1302sbit TIMEIO = P1 ^ 2// release data bus

内容： 1、试验目的：了解按键的扫描原理 2、实现现象：同时按键抢答，先按的键有效，其他按键锁死 复位后重新开始抢答 3、硬件要求：按键 LED灯 原理：最先按下按键者有效，其他均无效-Contents: 1, test Objective: To understand the key principles of scanning two to achieve phenomenon: the key to answer in the same time, press the key and effective, other key-lock reset and re-start to answer in 3, the hardware requirements: button LED lights principle: first press the keys are valid, others are null and void

此程序含有仿真电路图和C语言程序，希望能够对单片机爱好者有用-This program contains a circuit diagram and the C language simulation procedures can be useful for single-chip lovers

频率测量程序，都是正在产品的使用中，高低频自动切换显示-Frequency measurement procedures, are all products in use, high-low-frequency automatic switching display

SST28SF040是SST公司推出的高速可编程闪存。它具有512k*8的存储结构 芯片擦除及写入的时间快,可靠性高,能够重复写100,000次,低功耗.以上程序是用c51编写的驱动程序，希望对使用该芯片的同仁有所帮助-SST28SF040 SST is the company"s high-speed programmable flash. It has 512k* 8 storage structure chip erase and write the fast, high reliability, write to repeat 100,000 times, low power consumption. The above procedure is used to prepare the decoder drivers, and I hope to use the chip colleagues help

双音频解码器MT8870的驱动，用串口接收数据，可从串口调试器查看接收的数据-dual audio decoder di drives with Serial receive data from the serial debugger view of the data received

一反馈报警器的完整原程序,用于负载量变化的检测与报警.-a feedback report of the original integrity of procedures for loading change detection and alarm.

采用4046实现的10m以下信号的锁相环 电路图。-used to achieve the 4046 10m below the signal phase-locked loop circuit.