51必备

pic18f458单片机PWM如何工作的-pic18f458 microcontroller PWM How does it work

IC卡操作软件:AT88SCl604芯片的操作模式有五种。它们是通过配PGM、RST、CLK等引脚信号及内部地址计数器(IAC)的状态组合来实现。 (1) 芯片复位操作： AT88SCl604有两种复位方式:上电复位和控制复位。 上电复位： 上电复位是当芯片加电时的最初状态。上电复位属于芯片 内部复位。它将使芯片内部所有的隐含标志复位到"0"状态。并使地址计数器复位到0位。 控制复位： 当CLK为低时，在RST脚上的一个下降沿将便芯片产生复位操作。 控制复位是将地址计数器复位到0位，而不影响任何内部标志的状态。-IC Card operating software : AT88SCl604 chip mode of operation there are five. They are allocated by PGM, RST, etc. pin CLK signal and the internal address counter (IAC) portfolio of the state is to be achieved. (1) chip reset operation : reduction AT88SCl604 two ways : power-on reset and reset control. Power-on reset : power-on reset when the chip is in power at the initial state. Power-on reset the internal chip is reset. It will enable all internal chip implied signs reset to "0" state. Make address counter reset to 0. Reset control : When the CLK for the low, the RST feet of a falling edge chips will have to reset operation. Reset control is to address counter reset to 0, without prejudice to any signs of internal sta

18B20温度传感器的单片机程序，检测当前环境温度并将温度数据返回到单片机。-Single-chip temperature sensor 18B20 procedure, testing the current ambient temperature and the temperature data back to the single chip.

独立数码管计数，从0到99的计数，然后再清零。比较简单的代码。-Independent digital control counts, 0-99 from the count, and then cleared. The code is relatively simple.

I2C总线基本操作函数,及几个对I2C总线接口器件24C04操作的函数。 -I2C bus basic operation function, and several of the I2C bus interface device to operate a function of 24C04.

keil编译,单片机资料,rs485通讯。-keil compiler, microcontroller information, rs485 communication.

本程序是用于通用同步和异步串行接收器和转发器（ＵＳＡＲＴ），使用中断方式异步接收和发送数据通信源的程序文件。-this procedure is common for serial synchronous and asynchronous receiver and transponder (USARTs), the use of asynchronous interrupt receive and transmit data communication source program files.

一套MSP430单片机完整程序，便于初学者学习-a MSP430 integrity procedures, facilitate learning beginners

PIC16F87X单片机,A/D采集,LCD12232汉显, 按给定值,可显过大过小故障-PIC16F87X microcontroller, A/D collection, LCD12232 Han significantly, according to a fixed value, obviously too small fault

MSP430串口程序，串口接收与发送均用中断处理。当MSP430串口中断接收到PC机的指令后通过中断发送将数据发送出去。-MSP430 serial program, serial port receive and send all use interrupt handling. When the MSP430 serial receive interrupt instruction PC, adopted after the break to send the data sent.