[i=s]This post was last edited by dcexpert on 2019-8-20 23:44[/i]A few months ago, Make announced that it would cease publication due to financial problems. A few days ago, Make announced its return.A...
Speaking of the difficulties of switching power supplies, PCB layout is not a big problem, but if you want to lay out a good PCB board, it must be one of the difficulties of switching power supplies (...
Zero-based circuit learning : https://training.eeworld.com.cn/course/5492This video is dedicated to helping circuit novices understand circuit knowledge more clearly and quickly....
The convenience and risks brought by IoT and edge computing are:
If critical data packets at the edge of the network cannot be accessed, how can network security and service quality be guaranteed?
Sch...
Choice of architecture
A few days ago, I ported python 3.8 to the development board. The advantages of python are obvious, such as no need for cross-compilation, simple syntax, and many packaged libra...
2. Let's talk about how the addresses in mini2440_dm9k_resource are calculated. Address calculation is also an important part in driver transplantation. Address calculation is rarely introduced in on...[Details]
First, let's look at the 4 types of IO ports of the 51 MCU, P0~P3, and make an intuitive comparison in terms of structure.
The reason why P0 and P2 are put together is that the...[Details]
Cars are the most widely used means of transportation, and most of them are mechanical and manual switches that control car door handles. From the birth of the car to the present, car keys have gone ...[Details]
March 31 news, according to foreign media reports, Huawei plans to vigorously promote the development of autonomous driving technology to compete with its competitors in the United States and China. ...[Details]
(1) Interruption process
Interrupt processing is used to achieve a quick response to special internal or external events. When the CPU detects an interrupt request, it immediately responds to ...[Details]
Recently in the LABVIEW group, I saw several discussions about using queues to write collected data into the database. The discussions were very lively, but they overlooked an important issue, which i...[Details]
A few days ago, a student asked me about ARM interrupt nesting. I realized that what I took for granted was not easy for students to understand. ARM has seven modes, and we only discuss SVC, IRQ an...[Details]
LED digital tube is a commonly used display device in the peripheral interface device of single-chip microcomputer. There are two types of display devices, seven-segment tube and Mi tube. The seven-s...[Details]
The recent decline in lithium prices has reduced production costs. In addition, our company owns lithium mines and lithium carbonate smelters, which can cope with the impact of lithium carbonate price...[Details]
On February 13, Beijing Xingchen New Energy Technology Co., Ltd. (Xingchen New Energy) held a negotiation meeting with the Xiaochang County Government of Hubei Province and signed a project industrial...[Details]
The latest industry forecast is that LCD panel prices will continue to decline by the end of the first quarter or the beginning of the second quarter of 2022. According to WitsView data, the unit pri...[Details]
Today I will introduce to you how to measure DC voltage, AC voltage and resistance with digital f15b. First, let me introduce to you how to use f15b to measure a 9v battery. The first step: Insert th...[Details]
2.1 Von structure and Harvard structure 2.1.1 The difference between the two If it is an independent storage architecture and signal channel, it is a Harvard structure, otherwise it is a Von structu...[Details]
Nordic Semiconductor has announced that Shenzhen Yunliwuli Technology Co., Ltd., a Shenzhen-based developer of smart devices and IoT solutions, has selected the nRF52805 Bluetooth 5.2/Bluetooth® Low ...[Details]
Target-type intelligent flowmeter faults and troubleshooting methods:
1. The flowmeter has no indication or no signal. The main reasons are the following four
: a. The power supply has poor co...[Details]
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