PIC单片机的几个设计实例,不可多得！

功能： 1、作为下位机采集8255数据并将此数据通过通讯送出， 2、采集数据为BCD，先转换成二进制，处理后再转换成BCD 3、通讯采用方式3，多机通讯，上位机发地址时TB8=1，其他TB8=0 下位机SM2=1，RB8=1时产生中断后使SM2=0收发数据，结束后SM2=1-Features: 1, as under the 8255-bit machine data collection and communications sent through this data, 2, collected data for the BCD, first converted into binary, and then converted to deal with BCD 3, communication using methods 3, multi-machine communication, PC-fat address TB8 = 1, other TB8 = 0 under the digital machine SM2 = 1, RB8 = 1 when the failure to make SM2 = 0 to send and receive data, after the end of SM2 = 1

此为按键部分的,读取按键值是否有按键判断部分函数-this as part of the button, reading keys value judgment whether some function keys

座机电话短信发送源代码，座机按键号码获取，以及分类应用！-ace telephone messages this source code, ace number keys acquisition, classification and application!

用TI单片机MSP430系列写的CRC检验程序，C语言-Using TI single-chip MSP430 series written by CRC testing procedures, C language

目前市场上有很多语音录放系统，如录放音玩具、录音笔等，大多采用了单片机控制一个语音芯片，再接一个FLASH存储器的结构。单片机可以控制录放时间，选取特定时间段的播放以及单多声道的录放，容易通过改变外接存储FLASH改变录放时间。 我们做的是一个简单模型，只能录放。 只需要录音和放音时的外部 ROSC 端振荡电阻不同就能改变声音的录入和播放速度，录入的时间越短音质越好，录入的时间越长音质越差 它采用模拟量直接存贮技术，因此保真度高，音质好 -Currently on the market there is a lot of voice recording systems, such as sound recording toys, sound recording pens and so on, most of the single-chip microcomputer to control the use of a voice chip, making the structure of a FLASH memory. Single-chip microcomputer can control the playback time, select a specific period of time many of the players, as well as single-channel recording, easy to FLASH memory by changing the external playback time change. We make a simple model, only playback. Required only when the recording and playback-side oscillation of the external resistor ROSC will be able to change different recording and playback of sound speed, the shorter the time of admission, the better sound quality, longer recording sound worse using direct ana

这是由C51单片机实现的接触式IC卡的读写-This is achieved by the C51 single-chip contactless IC card read-write

atmega128串口通信程序，与PC机通信的驱动-atmega128 serial communication program, and PC communication drivers

MSP430系列16位超低功耗单片机实践 -MSP430系列16位超低功耗单片机MSP430系列16位超低功耗单片机

这是一款驱动过滤程序 能轻松过滤文本文档 幻灯片等程序-This is a filter driver can easily slide text document filtering procedures

51汇编语言缩进程序,格式化出漂亮的51汇编代码-51 assembly language brings procedures, formatting beautiful out of the 51 assembly code