Many years ago, a developer, seeking a deeper understanding of embedded systems, asked this question: How can I know and understand what my system is doing?
I was a little surprised by this question b...
As shown in the figure, the D15 diode at the secondary end of the switching power supply has its open measurement waveform as shown below, green is the current, and orange is the voltage:
At the momen...
[i=s]This post was last edited by reayfei on 2020-1-7 00:06[/i]Appearance design
The design of the evaluation board is very concise, and the appearance interface is clear at a glance.
A very small BLE...
Recommended reasons:
The introduction of high-performance switching power supply - 28V DC-DC synchronous buck converter is easy to understand and worth recommending. With high efficiency and low surfa...
[i=s] This post was last edited by bqgup on 2019-4-11 20:23 [/i] [postbg]3.jpg[/postbg][font=黑体][size=4] In Quartus II 9 software, in addition to using its powerful internal offline simulation functio...
SGM42507 is a full-bridge driver designed for small motors (<7.5V, 1.5A; brushed motor speed regulation and commutation, other types of motor winding drive) and electromagnets. It can be used for DC m...
Sun Dianyi, president of Shandong Industrial Technology Research Institute (hereinafter referred to as "Shandong Industrial Technology Research Institute"), recently stated at a mobilization meeting ...[Details]
In response to users' feedback on the heating problem of Xiaomi mobile phones, Jin Fan, Xiaomi Product Director and General Manager of MIUI Experience, responded in the Xiaomi Community today. ...[Details]
According to Wenhui Daily, in the first week of May, Shanghai Pudong Airport Customs has supervised a total of 731 inbound and outbound cargo planes, a month-on-month increase of 36.4%. It is report...[Details]
In order to promote the development of the new energy vehicle industry, the government has introduced many policies, including subsidies, recommended catalogs, etc., and now the points system has bee...[Details]
Interrupt priority from high to low 51 single-chip microcomputer: INT0 (P3.2), TIMER0, INT1 (P3.3), TIMER1, serial port interrupt (P3.0, P3.1) 52 single chip microcomputer:TIMER2 External interrupt f...[Details]
In the market for wireless transmission of high-definition video for consumer and mobile products, three Wi-Fi-based video technologies will outperform two proprietary technologies with narrower appli...[Details]
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1. Inline assembly under Ndk
Just like in vc, inline assembly can also be used in ndk compilation environment, as follows:
include stdio.h
int my_thumb(int dummy)
{
__asm__(
“mov r0,#...[Details]
S7-1200 supports array subscript using variables since firmware version V2.0, which means array is the most convenient indirect addressing method. Various functions can be realized by changing the ...[Details]
Earlier, Huawei officially released a pre-heating poster for the Mate 40 series of mobile phones, announcing part of the appearance of the new phone. According to the poster, the Huawei Mate 40 serie...[Details]
According to foreign media reports, Zhixing, an autonomous driving car company under Velodyne, Google's parent company, began selling its lidar ( laser radar ) sensors on Wednesday. Velodyne has deve...[Details]
I use the IAR compiler. I played with STM8 last night and found that the style is quite similar to STM32, so I got the hang of it quickly.
Today I played around with the TIM4 timer, but the interrupt...[Details]
GPIO — General purpose input/output General Purpose Input/Output (GPIO) is organized as a port of up to 32 I/Os (package dependent), allowing up to 32 pins to be accessed and controlled through a sin...[Details]
There are always various problems in the use of steam flowmeters, and sometimes there is no way to deal with these problems as soon as possible. Therefore, as long as you pay more attention to some mi...[Details]
1 Basic Concepts of RTOS
Real-time multitasking operating system (RTOS-Real Time Operating System) refers to the working characteristics of the operating system. Real-time refers to the real time of...[Details]
The auto-coupling step-down starting control cabinet is a commonly used motor starting device. It uses an autotransformer to reduce the starting voltage of the motor, thereby reducing the starting ...[Details]
Programming Basics
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