I just started using evc, and I have a question: Why does the setwindowpos function not work when it is placed in the oncreate function in evc, but works when it is placed in the oninit function? I wr...
[size=4][color=#000000]Thanks to the netizen [/color][color=#ff0000][b]@qwerghf[/b][/color][color=#000000] for donating 26 development boards to the EEWORLD forum's development board mobile station at...
例子：Altera-SoCFPGA-HardwareLib-GNUALT_STATUS_CODE test_config_full(void)
{// Verify the MSELs are appropriate for the type of image we're using.ALT_FPGA_CFG_MODE_t mode = alt_fpga_cfg_mode_get();switch...
With the development of sensor technology, embedded technology, distributed information processing technology and wireless communication technology, wireless sensor networks (WSNs) composed of a large...
[E-questions and answers on device purchase, lucky grab] 3 - What should I do if the purchased components are not in the same package as the PCB? https://bbs.eeworld.com.cn/thread-219046-1-1.htmlWinne...
I used vivi's load flash wince u command to burn wince to the flash on the board. Several errors occurred during the formatting, and then the formatting was completed normally. When I just burned winc...
introduction
With the continuous optimization of surface mount technology (SMT) and the rapid development of chip component manufacturing technology, the application of chip mounters in the el...[Details]
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[Details]
1. Introduction
Automobile pollution is one of the most important issues that people are most concerned about and need to solve urgently. As an important method for detecting automobile exhau...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
Today, with energy becoming increasingly scarce, the utilization of natural energy has become the focus of people's attention. Among various natural energies, the endless solar energy is highly fav...[Details]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[Details]
With the rapid development of wireless
digital communication
, more challenges have been raised for integrated circuit design and testing. In the product design stage, in order to ensure
t...[Details]
Embedded System
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