[size=4]This is a problem encountered when implementing a function using DSP. The program requires obtaining data at a specified position in a character array. [/size] [size=4] [/size] [size=4] 1. Abo...
5G has brought about major changes in the communications industry. The number of communication frequency bands has been growing rapidly since the 4G era. As a core component of mobile phone communicat...
The magnitude of wireless user demand is growing, and this network density and densification will put further pressure on wireless operators. The rollout of 5G wireless networks will meet higher capac...
Controlling home appliances by voice is a key point of my evaluation project. This experiment uses a voice recognition module purchased from Taobao. This module has a high cost performance. The disadv...
[i=s]This post was last edited by xiyue521 on 2021-5-16 23:33[/i]First enable adc and then find the device to mount: (rt_adc_device_t)rt_device_find(ADC_DEV_NAME)Then enable adc: rt_adc_enable(adc_dev...
1. Review of Traditional Instrument Design Process
Modern automatic instruments and equipment have the following performance and characteristics:
In addition to the front-end signal detec...[Details]
How bone conduction headphones work.
There are two ways for sound to propagate, one is through the air, and the other is through a certain medium. The traditional headphones we use mainly tran...[Details]
We know that as the temperature drops, the endurance of electric vehicles will also decrease, and turning on the air conditioner will further reduce the endurance of the car, which also forces some d...[Details]
Basic Concepts
**1. ** Pole pair number P: refers to the number of pairs of NS poles in the permanent magnet rotor (or stator).
For each rotation, the induced electromotive force generate...[Details]
2020 is the year to complete the building of a moderately prosperous society in all respects and the end of the 13th Five-Year Plan. It is the decisive year for achieving the first centenary goal a...[Details]
As incandescent lamps are gradually replaced by efficient lighting solutions, NXP is using its GreenChip technology to promote the development of "ecological engineering" and help global consumers red...[Details]
Selection of divider order
Different order crossover networks have different characteristics. The first order Butterworth
crossover
fully meets the minimum phase standard. It produces ...[Details]
0 Introduction
Switching power supplies have been widely used in communication equipment due to their small size and high efficiency. However, for applications where the output voltage ripple ...[Details]
I have been puzzled about the problem of start_kenal in the arm linux kernel for a long time but still can't solve it:
In include\linux\Cupmask.h, there are the following definitions
typedef struc...[Details]
Digital multimeters have ohmmeters like pointer multimeters, but due to the different measurement principles, the ohmmeter of a digital multimeter cannot determine the positive and negative poles. Ho...[Details]
Abstract: Addition is the most basic arithmetic operation in digital systems. In order to better utilize adders to realize subtraction, multiplication, division, code conversion and other operation...[Details]
Record the ADC programming method of STM32! We have learned about DMA before and know how to use DMA to reduce the burden on the CPU. The ADC conversion here also uses DMA - this is a...[Details]
The groundbreaking ceremony for major projects in Pukou District was successfully held in the development zone. A total of 15 major projects were started this time, with a total investment of 26.97 b...[Details]
Overview
Photoelectric direct-reading water meters launched in the market in recent years have gradually been accepted by the water supply industry and become mainstream products on the market ...[Details]
Microcontroller MCU
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