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源码 矩阵式键盘
include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
uint temp,aa,wang,qian,bai,shi,ge;
sbit dula=P2^6;
sbit wela=P2^7;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
void display( uint wa ...
技术资料 AC220V转DC5V(3W )-RS485电路-继电器驱动板ALTIUM设计硬件原理图+PCB+A
AC220V转DC5V(3W )-RS485电路-继电器驱动板ALTIUM设计硬件原理图+PCB+AD集成封装库，2层板设计，大小为59x62mm，Altium Designer 设计的工程文件，包括完整的原理图及PCB文件，可以用Altium(AD)软件打开或修改，可作为你产品设计的参考。集成封装器件型号列表：Library Component Count : 20Name&nbsp; &nbsp; &nbsp; &nbsp ...
技术资料 PW3130_2.0.pdf规格书下载
The PW3130 series product is a high integration solution for lithium-lion/polymer batteryprotection.PW3130 contains advanced power MOSFET, high-accuracy voltage detection circuits anddelay circuits. PW3130 is put into an ultra-small SOT23-5 package and only one external componentmakes it an ideal so ...
技术资料 Altium Designer常用器件集成库PCB封装库原理图库3D库元件库
Altium Designer常用器件集成库PCB封装库原理图库3D库元件库集成库原理图器件型号列表：76个13W3&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;2N7002&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;74HC0474HC0874HC244D74HC595&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;74LS138&nbsp; ...
技术资料 高清电子书-C++ Primer Plus 第6版英文版 1438页
高清电子书-C++ Primer Plus, 第6版英文版 1438页Learning C++ is an adventure of discovery, particularly because the language accommodates several programming paradigms, including object-oriented programming,
generic programming, and the traditional procedural programming.The fifth edition of
this book ...
技术资料 Agilent 34401A Service Guide.pdf
Agilent 34401A Service Guide.pdfIEC Measurement Category II includes electrical devices connected to mains at an outlet on a branch circuit. Such devices include
most small appliances, test equipment, and
other devices that plug into a branch outlet
or socket. The 34401A may be used to make
measurem ...
技术资料 跳不出的while 循环
该问题由某客户提出，发生在 STM32F103VBT6 器件上。据其工程师讲述：在为 STM32 调试软件过程中，遇到了一个怪现象：有如表（一）所示的一段程序中，KeyIn 是一个全局变量。当有按键按下时，键盘的中断服务程序会将对应的键值放入其中，当按键释放后，键盘中断服务程序则把 RESET 值放入该变量。行（1）的条件语句在主程序 ...
技术资料 二极管-整流桥封装Altium Designer AD PCB封装库2D3D元件库文件
二极管-整流桥封装Altium Designer AD PCB封装库2D3D元件库文件PCB Library : 二极管-整流桥.PcbLibDate&nbsp; &nbsp; &nbsp; &nbsp; : 2020/12/29Time&nbsp; &nbsp; &nbsp; &nbsp; : 14:46:42Component Count : 48Component Name-----------------------------------------------ABSbr3BR8DBDBSDFN-2DO-15DO-15LDO-15LVDO- ...
技术资料 电子书- 十天学会单片机实例100.pdf
电子书-十天学会单片机实例100.pdf//实例 4：用单片机控制一个灯闪烁：认识单片机的工作频率 #include<reg51.h> //包含单片机寄存器的头文件 /**************************************** 函数功能：延时一段时间 *****************************************/ void delay(void) //两个 void 意思分别为无需返回值，没有参数 ...
技术资料 电子书-RTL Design Style Guide for Verilog HDL540页
电子书-RTL Design Style Guide for Verilog HDL540页A FF having a fixed input value is generated from the description in the upper portion of
Example 2-21. In this case, ’0’ is output when the reset signal is asynchronously input,
and ’1’ is output when the START signal rises. Therefore, the FF da ...