Abstract: Based on the single-chip microcomputer PIC16F877, an automatic detection system for the heading and side angles of a certain type of aircraft was successfully designed. The article explains ...
There are many performance indicators of power amplifiers, including output power, frequency response, distortion, signal-to-noise ratio, output impedance, damping coefficient, etc., among which outpu...
Question: What will happen if the following code is executed? #includechar *fun(void) { char p[] = "hello, world"; return p; } void main() { char *p_ch = NULL; p_ch = fun(); printf(p_ch); } At first g...
I work on industrial control software, and recently encountered an annoying problem. Our equipment uses Taian inverters. When I use the serial port debugger to debug the communication, when the invert...
[font=Tahoma,] In PCBLAYOUT, sometimes in order to make their own boards more distinctive, engineers often add some LOGOs to the PCB layout. That is, import pictures into PADS. [/font] [font=Tahoma,] ...
[i=s]This post was last edited by Xin Xin on 2015-2-3 15:06[/i] As soon as I opened the forum, I saw a post titled "In recent years, embedded processor manufacturers have also been competing hard." I ...
【JDPCB】Qisda is introducing smart factories in phases. Chairman Chen Qihong said yesterday (25th) that through high automation, order delivery can be accelerated. The current benefits have reached a...[Details]
Event: The company simultaneously released its 2017 annual report and the first quarter report of 2018. In 2017, the company achieved revenue of 8.886 billion yuan, a year-on-year increase of 48.01...[Details]
Designing for automotive LCD displays larger than 5" can be complex. The display source driver requires a supply rail called analog voltage device drain (AVDD) in the 10V to 15V range and two supply ...[Details]
In order to strengthen the management of new energy vehicle charging facilities in our city, prevent and reduce accidents, protect the lives and property of the people, and improve the public safet...[Details]
China Energy Storage Network News:
According to reports, in order to reduce carbon emissions, a group of Japanese technology and energy companies are launching a pilot project that aims to al...[Details]
1. Test conditions Hardware: STM32L432KC Main frequency: 80MHz Compiler: IAR 8.20.1 Compiler options: High Speed no size constraints CRC generator polynomial: 0x782f 2. Test Method The softwar...[Details]
In the actual project development process, hardware circuits often need to be modified, and the modified parts need to modify the driver. Thinking about the coming and going of such requirements is t...[Details]
The program got stuck during LCD initialization. Through hardware debugging, it was found that it was stuck in the Delay_ms() function. Going to the definition, it was found to be a macro definition ...[Details]
Because the STM32 HAL library only has millisecond-level delay for HAl_Delay(), in order to achieve accurate microsecond-level delay, Systick has to be modified. However, since it is used internally ...[Details]
I used STM32CubeMX V4.22.1 to generate a project including EHT and Lwip. The debugging has been abnormal. After careful inspection, the following problems were found: 1. The hardware uses LAN8720A, b...[Details]
Serial Port: 一. USART_ITConfig(USART1, USART_IT_TXE, ENABLE): As long as the transmit register is empty, there will always be an interrupt. Therefore, if you are not sending data, turn off the tran...[Details]
From last year to now, competition in the photovoltaic inverter industry has become increasingly fierce. In addition to the introduction of new products, various marketing and promotion methods hav...[Details]
The application of millimeter wave technology in mobile communications also involves a series of technical problems, including the large propagation loss of millimeter waves and the susceptibility ...[Details]
From small households to large enterprises, energy consumption has always been a concern for everyone. The energy consumption of Chinese enterprises has always been high, and the country has also wor...[Details]