标准的51单片机产生PWM波形，使用定时器LED逐步实现研究…

此为友善之臂micro2440的电子电路封装原图，更新时间为2009年2月28日。-This is a friendly arm of the electronic circuit package micro2440 image, update time for February 28, 2009.

=== =时钟20:6=== === == 应先初始化状态寄存器 tx1714 EQU 7FFH PA EQU 05H PB EQU 06H PC EQU 07H PD EQU 20H IAR EQU 00H 间接寻址寄存器 TMR0 EQU 01H 定时器 STATUS EQU 03H 状态寄存器 BSR EQU 04H bank选择寄存器 PORTA EQU 05H I/0端口寄存器 PORTB EQU 06H I/0端口寄存器 PORTC EQU 07H I/0端口寄存器 PORTD EQU 20H I/0端口寄存器 PULL EQU 21H PULL-High上拉寄存器 WAKEUP EQU 22H 唤醒控制寄存器－－被用来设定watchdog允许和禁止 IRQM EQU 23H 中断屏蔽寄存器 IRQF EQU 24H 中断标志寄存器 WDTSEL EQU 25H -=== === = clock 20 : 6 === === === == should first register initialization state tx1714 EQU 7FFH EQU PA PB EQU 05H 06H 07H PC EQU PD EQU 20H IAR E QU 00H indirectly addressable registers TMR0 EQU 01H timer STATUS EQU Mr send state BSR EQU-deposit bank in the 04H choice Register PORTA EQU 05H I/O ports Register P ORTB EQU 06H I/O ports Register PORTC EQU 07H I/O ports Register POR TD EQU 20H I/O ports Register PULL EQU 21H PULL-High pull Register WAKEUP EQU 22H awaken control registers-- were used to set watchdog allowed and prohi

usb to 232 学习作下在线的资料-usb to 232 to learn to make the next line of information

研究所积累的资料,大家秘密使用,千万别告诉别人!-Institute of accumulated data, we use a secret, please do not tell others!

飞思卡尔的编程资料，开发软件的调试，以及智能车路线识别系统文章。 -Freescale" s programming information, development of software debugging, and intelligent vehicle identification system routes the article.

C51读写fm1702sl SPI接口的读写程序 IO口模拟SPI接口-C51 to read and write fm1702sl SPI interface to read and write procedures for analog IO port SPI interface

频率计是用单片机89C51和几块数字电路几个三极管-Frequency meter is used and a few 89C51 single-chip digital circuit several triode

LINUX智能手机手机MOTOROLA E2 图形接口源码-LINUX smartphone MOTOROLA E2 mobile phone graphics interface source

单片机C语言的精确延时程序设计，很有用的哦- The monolithic integrated circuit C language precise time delay programming, is very useful oh

这是一个用C语言写的51单片机的51串口通信的程序，里面有非常详细的注释-This is a C language to write the MCU 51 of the 51 serial communication procedures, which are very detailed Notes