这是一个51单片机与PC的通信系统：采用3×4的小键盘0…

这个范例说明如何使用8051 的Port 1连接到四颗七段显示器，PORT 0的低4位分别控制这四颗共阳七段显示器，让四颗共阳七段显示器使用扫描的方式轮流-This example shows how to use the 8051 Port 1 connected to four seven-segment display, PORT 0, low 4, respectively to control the total of four seven-segment display yang, so that a total of four seven-segment display yang way of using the scan rotation

lcd 1602 实现简单的字符显示,共大家学习参考.-lcd 1602 show that the realization of simple characters, a total of U.S. study reference.

原像发给我的资料希望对大家有用PAN3101 COMPATIBLE MCU LIST 20050413.pdf-Like the original information was sent to me everybody want to be useful PAN3101 COMPATIBLE MCU LIST 20050413.pdf

按键扫描驱动程序。51单片机。c语言编程。-button scanning driver. MCU 51. C programming language.

单片机原理及应用教程-SCM Theory and Application Guide

=== =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

台湾群特温湿度手持仪表软件，做温湿度记录的可以参考，-Taiwan group of special temperature and humidity meter handheld software, to do temperature and humidity records for reference

使用c51单片机制作的气象五要素采集程序 包括DS1302温度以及TLC2543、24c04，键盘 240*320液晶模块！-use c51 SCM produced five elements of the meteorological collection procedures include DS1302 temperature and TLC2 543,24 c04, keyboard 240* 320 LCD module!

单片机实例，报告，很多的应用实例，对于初级单片机程序员有很大作用-Singlechip example, reports, a lot of application examples for the primary single-chip programmer plays a significant role in

PXA270平台的键盘应用程序代码~~~~实现4*4键盘全功能-PXA270 platform application code keyboard ~ ~ ~ ~ to achieve 4* 4 full-function keyboard