The global variables are defined in the header file myhead.h:
union unit16{struct bit_def{char b0:1;....char b15:1;}bit;
unsigned int word ;};
union unit16 ControlR;
#define AO1 ControlR.bit.b0
#defin...
[size=5]I got the LCD working today!! [/size] [size=5][color=#ff0000]But there is a problem. Beaglebone must be powered on first. If they are powered on together, Beaglebone will not work. The reason ...
DIY mobile phone + Blue Rain Night Material preparation During this period, I have been selecting components. First prepare the necessary components, buy what should be bought, apply for what should b...
Please help me, I want to use 74hc595 to realize this function: #include "stc12c5410.h" #define uchar unsigned char #define uint unsigned int #define CAT=p1_5; #define STB=p1_6; #define CLK=p1_7; //St...
If I put the interrupt for reading IIC in the timer interrupt, the program will die. If I put it outside, it can run normally. The interrupt time is set to 4ms. Reading 6050 data in the timer interrup...
I need to add infrared support recently. I use 2440 and connect an infrared receiver to the board. I want to add infrared. Are the drivers used for infrared and serial ports the same? Or do I need to ...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
In this article, the high-performance DSP developed by TI can be used as an effective confidentiality method if it is applied to PC encryption cards.
As an effective network security solution,...[Details]
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[Details]
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[Details]
Contact resistance
is the resistance to current flow through a closed pair of contacts. This type of measurement is performed on devices such as connectors,
relays
, and switches. The...[Details]
1 Introduction to HART Protocol
HART (Highway Addressable Remote Transducer), an open communication protocol for addressable remote sensor high-speed channels, was launched by Rosemen in the U...[Details]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
In the single-chip microcomputer system, in addition to display devices, sound devices are often used, and the most common sound device is the buzzer. Buzzers are generally used for some low-demand...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Our flight had just begun to descend when a gentleman sitting next to me turned to talk to me about engineering—he had seen me reading an engineering journal. The gentleman next to me said that he ...[Details]