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Digital display 00~59 Button 1 each time you press the display value plus one, button 2 each press the display value minus one, button 3 function zero, button 4 start or stop timer 0#include #define UCHAR unsigned char#define UINT unsigned intSbit key1=p3^4;Sbit key2=p3^5;Sbit key3=p3^6;Sbit key4=p3^7;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 delayms (UINT);Uchar Numt0,num;void display (Uchar Numdis){Uc

users to use the computer to provide a good operating environment of a system software.2, the role of the operating system(1) Improve the efficiency of computer system through resource management;(2) To improve the human-machine interface, to provide users with a friendly working environment;3, the operating system featuresConcurrency: Two or more two running programs are executed simultaneously within the same interval.Sharing: Refers to the resources in the operating system can be used by mul

character device array(4) Create a struct class using the Class_create macro(5) Create a device file using the Device_create function2. Uninstalling the LED-driven device filesCall three methods in turn:Void Device_destroy (struct class *class,dev_t devt)Void Class_destroy (struct class *cls)Void unregister_chrdev_region (dev_t from,unsigned count)3. Setting the register and initializing the LED driver4. Control LED(1) control led via string(2) control led via I/o commandModule parameters for 5

1. Master the basic working circuit of ZigBee Wireless module.2, the above chip with the emulator connection needs 5 wires, power, ground, reset, P2_1, p2_2.Output configuration: A, the first to make the corresponding IO port in the normal IO port mode, non-on-chip peripheral mode, B, so that the normal IO port in the output state, non-input state, C, directly to the corresponding IO port assignment, the corresponding value is output.The input or output status of all IO ports is determined by P0

smaller, generally 100 ω to dozens of ω between. This indicates that the FET has been triggered to pass. At this time, the black table pen to the S pole, the red table pen to the D-pole, you will find that there is a numerical display. This shows that the FET is intact. If the results are inconsistent with the above two methods, then the FET is bad. In general, D-pole and S-pole breakdown are more common. Using the "diode" of the digital multimeter, you will hear the sound of the buzzer. The ab

Recently I plan to build a hardware touchpad control system, so I started to learn hardware. A week of downtime, come on!AT89S52 1/* = ======================================2 Project name: digital tube running light3 OPERATOR: Rain4 creation date: 2011-10-305. Change description:6 program description:7 (1) CPU model: AT89S528 (2) clock frequency: 129 (3) implementation functions:10 (4) Program Overview:11 =============================================

the code is wrong (school facilities are wrong). Then this thread is bound to fall into chaos. 4, for physical education this process. Threads (physical activity) are unknown, and only when the school is allocated at the beginning of the semester can you determine who will take the first course. EnhancementA pipe defines a data structure and a set of operations that can be run for a concurrent process. This set of operations can synchronize processes and change the data in the pipe process d

teacher) to control, once the code is wrong (school facilities are wrong), then this thread will fall into chaos. 4, for physical education This process, the thread (sports activities) is unknown, only in the school when the allocation of a good time to determine who first to carry out what course. EnhancementThe process defines a data structure and a set of operations that can be performed for concurrent processes, which can synchronize processes and change the data threads in a pipe to de

chain today? What is the high quality of the chain? Just look at the so-called outside the chain of the real role! We first answer a question: what is the outside chain to do, why to give a page to do outside the chain? Look at Google and Baidu's optimization guide said outside the chain is equivalent to the page of a vote, the more the chain more votes, the higher the weight, this is true! But in essence we do outside the chain mainly to let more people understand us, from more ways to know us

First, the need for version management If the software crisis of the 70 's led to the birth of the idea and the development of the theory system, the rapid development of the software industry in the 80-90 years, especially in the 90, led to the

Recently in a product, because the charge and discharge current reached 100A, the current than I did before the product is large, so in the end is to choose MOS or relay. I have always had a question, because look at several MOS specifications in

This is a small experiment I did last semester, but I think the control MCU is more direct than the control arm, because some of the arm is better than the MCU encapsulation, so you are not very in-depth. If you have learned MCU, it will be easier

# Include # Include # Include # Define uchar unsigned char # Define uint unsigned int Sbit Dula = P2 ^ 6; Sbit wela = P2 ^ 7; Sbit adwr = P3 ^ 6; Sbit adrd = P3 ^ 7; Uchar flag,; Uchar flag_uart, flag_time, flag_on, A, I, t0_num, ad_val; Float ad_

VI. configuration and management of VSS6.0 servers After the VSS 6.0 server is installed, you can configure and manage the VSS server for your development project, all of which need to be done by the VSS administrator. 　 First, create a VSS

Preface: This article starts with step-by-step implementation of this permission system's preliminary design-framework construction, first of all, I would like to say that we need to develop tools visual Studio 2012 or 10 is OK, followed by we want

In the last few days when using Dedecms, in the background management, the file Manager can not delete the folder, prompted to delete the success, but still exist.Find a bit on the website, found there is still a solution. The original is Dede is

#include #include int main () {char display[31] = {0}; Output string int model[10] = {0}; binary analog int code[10] = {63, 6, 91, 79, 102, 109, 125, 7, 127, 111}; Decimal number modulo for (int i = 0; i Sample output:

If there is no port aggregation on the vswitch. Your two computers are connected with two network cables. It turns into a ring, which affects both the switch and the connected computer. Therefore, the port aggregation function is crucial for

Network management is often referred to as "Network Management ". In the application environment of a network, there are many ways and methods to manage the network. At the same time, different methods can be used to achieve this. The network

# Include # Define uchar unsigned char # Define uint unsigned int Sbit Dula = P2 ^ 6; Sbit wela = P2 ^ 7; Sbit led1 = p1 ^ 0; Uchar code table [] = { 0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f, 0x77, 0x7c, 0x39, 0x5e,