Line 9 of this circuit is output to the input of the circuit through the microphone amplifier MAX9814, and line 5 is output. I would like to ask what the function of this circuit is and what the funct...
I wanted to learn embedded systems from scratch, so I bought a MINI2440 development board online. The shop owner said that a parallel port was needed for debugging, but my computer didn’t have one. Di...
The functions I want to achieve: 1. Phone operation (including making and answering calls) 2. SMS operation (including sending SMS, receiving new SMS, deleting a specified SMS, receiving the number of...
I built a controllable gain circuit based on the circuit in Figure 2 in the datasheet, and found that the output waveform was distorted. When I turned on the frequency limit when observing it on an os...
For an electronic system now, the design of the power supply part is becoming more and more important. I would like to discuss some of my own experience in power supply design with you to start a disc...
Recently, the first Digital China Summit was held in Fuzhou, attracting many domestic ICT industry giants to participate in the exhibition. The long queues outside the venue, the noisy and exciting...[Details]
In 2017,
Sanan Optoelectronics
achieved sales revenue of 8.394 billion yuan, operating profit of 3.856 billion yuan, and net profit attributable to shareholders of the parent company of 3.1...[Details]
1. Principle 1. Infrared emission protocol The infrared transmission protocol has been written in the previous article , so I will not repeat it here. 2. Timer counting and input capture A timer...[Details]
The day before yesterday, I learned about STM's Systick and found it quite useful for precise timing. When I used CVAVR before, I found that the delay.h in it was very useful. So, I used STM32's...[Details]
Since the first draft of the 5G
NR standard was officially launched at
the end of 2017
, the
5G
commercialization process has taken a substantial step forward. From that moment on, mo...[Details]
Overview
Lightning is a strong discharge phenomenon that occurs between thunderstorm clouds and between thunderstorm clouds and the earth due to severe convective weather. Lightning is gen...[Details]
1. FSMC Brief FSMC, the Flexible Static Storage Controller, is capable of interfacing with synchronous or asynchronous memories and 16-bit PC memory cards. The FSMC interface of STM32 s...[Details]
Recently, Zhejiang Lipu Crushing Equipment Co., Ltd. invested 50 million yuan to build a new "annual production of 1,200 high-efficiency and energy-saving ultra-fine pulverizer construction project...[Details]
As a leading company in automotive semiconductors, Freescale and Khronos Group have jointly launched an automotive multimedia embedded microprocessor i.MX35 with an integrated OpenVG hardware acceler...[Details]
STM32 has two watchdogs: independent watchdog and window watchdog. This article mainly introduces the use of independent watchdog. Independent watchdog (IDWG): driven by an independent 40KHZ low-sp...[Details]
According to MEMS Consulting, single-chip radar system-on-chip (SoC) is becoming one of the most popular new sensors . Its widespread adoption in automobiles has greatly increased sales, thereby pr...[Details]
At this exhibition, Microsoft brought its flagship intelligent voice products - XiaoIce and Xiaona. In addition, the voice will be equipped with an intelligent face recognition system. Let's see ho...[Details]
STM32 has three startup modes. In RM0008 downloaded from the ST official website, you can find the startup-related configuration instructions: Translated into Chinese: The storage media corresp...[Details]
Mixed reality (augmented and virtual reality) is the next computing frontier after the PC in the 1970s, the web in the 1990s, and mobile platforms in the 21st century.
MR
is the most unique...[Details]
Analog electronics
京公网安备 11010802033920号
EEWORLD
