msp430f169 中断方式驱动独立键盘

SH69PXX单片机与24系列E2PROM接口程序包-SH69PXX microcontroller series with 24 E2PROM interface package

将演示数据先写入24C04芯片内，再将其数据逐个读出送P0口LED显示。-Data will demonstrate the first to write 24C04 chip, and then read out the data sent by P0 I LED display.

pwm的输出实验，运用内部数模转换器产生PWM波并输出-pwm output of experiments, the use of PWM wave generated within the DAC and output

基于8051F020,目的：用PCF8574器件实现并口输入，输出操作-Based on 8051F020, Objective: To realize parallel PCF8574 device input and output operation

鉴于MCS-51系统只提供“二级中断嵌套”，提出扩展51系统中断优先级的纯软件方法。其利用51系统内建的中断允许寄存器IE和中断优先级寄存器IP，通过屏蔽字机制来实现；以C51的形式，给出这种扩展方法的函数库实现，为该方法的使用赋予友好、简洁的用户接口。-Given MCS-51 systems only provide "two interrupt nesting," expanded 51 priority system interruption of pure software. The use of 51 built-in system allows interruption Register IE and priority interrupt register IP, through word shielding mechanisms to achieve; C51 in the form of this expansion is the way to achieve functions, methods for the use of empowerment friendly, simple user interface.

DLT645-2007,最新版中华人民共和国电力行业标准替代1997版-DLT645-2007, the latest version of People

含PPT和书中的例图，《基于PROTEUS的电路及单片机系统设计与仿真》随书光盘-Containing PPT and book illustration,

通信方式是485方式。通过485来控制一组灯的开关。-485 are way communication. Through 485 to control a group of light switches.

通用MSP430-I2C的程序，这个程序是一个完整的程序，直接下载就可以使用-MSP430-I2C common procedures, this procedure is a complete program, you can use direct download

5045的底层操作程序,使用时根据实际接线情况对程序中管脚定义部分做适当修改 //定义管脚 sbit SCK=P3^4 //时钟 sbit SI=P3^5 //CPU--->5045 sbit SO=P3^5 //5045-->CPU sbit CS=P3^6 //片选 -5045 underlying operating procedure, when used in accordance with the actual situation on the process of wiring pin to do some appropriate changes to the definition// define pin sbit SCK = P3 ^ 4// clock sbit SI = P3 ^ 5// CPU-