4x5的键盘扫描,一个实用的单片机键盘程序

lpc23xx_24xx 程序包 及其有价值的 宝贝-lpc23xx_24xx packages and valuable treasure

MSP430x11x1系列单片机示例汇编源代码-MSP430x11x1 Series Single-chip sample source code compilation

430学习书籍,好东西,希望大家下载-430 learning books, good things, I hope everyone downloads

用C51实现的拼音输入法,这是改写的网友 embuffalo、独步上载在www.21ic.com自由发布区的由张凯原作的51上的拼音输入法程序。 原作使用了一个二维数组用以查表，我认为这样比较的浪费空间，而且每个字表的索引地址要手工输入，效率不高。所以我用结构体将其改写了一下。就是大家现在看到的这个。 因为代码比较的大，共有6,000多汉字，这样就得要12,000 byte来存放GB内码，所以也是没办法的 :-( 编译结果约为3000h,因为大部分是索引表，代码优化几乎无效。 在Keil C里仿真芯片选用的是华邦的W77E58，它有32k ROM, 256B on-chip RAM, 1K on-chip SRAM (用DPTR1指针寻址,相当于有1K的片上xdata)。条件有限，没有上片试验，仿真而已。 打算将其移植到AVR上，但CodeAVRC与IAR EC++在结构体、指针的定义使用上似乎与C51不太一样，现在还未搞定。还希望在这方面有经验的网友能给予指导。-C51 with the Pinyin input method, which is rewritten netizens embuffalo. Unrivaled www.21ic.com available in the free publication of the original work by Kai-51 on the Pinyin input method procedures . Appreciate the use of a two-dimensional array for the look-up table, I think this is a waste of space. Each of the characters but the index table to manually input address, efficiency is not high. I use the structure to rewrite a bit. We see now is this. Because the code comparison, a total of 6, more than 000 Chinese characters, this must

本文详细介绍了4×4矩阵式键盘识别技术，内含详细的电路图和C51源代码。-This paper describes a 4 × 4 matrix keyboard recognition technology, and contains detailed schematics and source code C51.

一个单片机控制步进电机的经典例子,KEIL下直接编译,用PROTEUS仿真,欢迎大家下载!-A single-chip stepper motor control of the classic examples, KEIL compiler directly using PROTEUS simulation, welcomed everyone to download!

C8051F9XX单片机人体感应按键的示例程序-Singlechip C8051F9XX key examples of human induction procedures

用定时器和控制端口,定时扫描,实现多种流水效果-With timer and control of ports, timing scan, to achieve a variety of water effects

c51单片机开发 流水灯 很好的代码，好好学学吧。-c51 Microcontroller Development water lamp

详细介绍了单片机的总线设计法，讲述清除并有设计实例-Details of the MCU bus design method, and a design example about the removal