[color=rgb(51, 51, 51)][font=微软雅黑][p=25, null, center][img]https://en.eeworld.com/bbs//huodong/Qorvo_zt/data/20190423084737357.jpg[/img][/p][align=left]It should come as no surprise that the upcoming ...
RFID (Radio Frequency Identification) is a short-range wireless communication technology. Compared with other short-range wireless communication technologies such as WLAN, Bluetooth, infrared, ZIGBEE,...
[size=4][color=#000000][backcolor=white] The non-standard network cables on the market are mainly made of copper-clad steel, copper-clad aluminum, copper-clad iron, etc. These cables have high resista...
Recently, the company project needs to make an MCU replacement plan. I applied for the EFM32PG22 development board from SIlicon Labs of the United States to use, and planned to consider the EFM32PG22 ...
[i=s]This post was last edited by xiyue521 on 2021-5-16 01:48[/i]The purpose of the watchdog is to protect the chip from entering an infinite loop (or the program running away). The watchdog has an in...
Voltage sampling is inaccurateWhen R10 is disconnected, the voltage division is accurate. When R10 is connected and sent to the ADC port of the MCU, the voltage division is inaccurate. The error is la...
This reference design is for a miniature optical heart rate monitor measurement solution (without chest strap) specifically for wearable or mobile applications. The small module can be easily conn...[Details]
1. Overview Detecting fetal heart rate is a highly technical task. Since the fetal heart rate is very fast, between 120 and 160 beats per minute, it is difficult to measure accurately with a traditio...[Details]
Recently, Yangtze Memory Technologies Co., Ltd., a subsidiary of Tsinghua Unigroup, announced that its independently developed and produced 64-layer three-dimensional flash memory chip has begun mass...[Details]
introduction
Timed on/off is a common problem in daily, weekly, monthly, etc. timed on/off. For example, in the booster pump room of a residential area, when the water consumption is lo...[Details]
With the continuous improvement of material life, people are paying more attention to the safety of people and property, and are looking forward to the birth of intelligent alarm systems that can pla...[Details]
Recently, high-performance brake brand Brembo launched a new revolutionary electronic braking system Sensify, which will be combined with artificial intelligence to provide individual braking force f...[Details]
LDO is a micro-power low-dropout linear regulator that usually has extremely low self-noise and high power supply rejection ratio PSRR (Power Supply Rejection Ratio).
LDO is a new generation of int...[Details]
The State Council recently issued the "New Energy Vehicle Industry Development Plan (2021-2035)", which mentioned that compared with the scale of new energy vehicle promotion and application, the con...[Details]
Thermistors are frequently used in current electrical appliances. They change the resistance value through the change of ambient temperature, thereby changing the working state of the circuit and are ...[Details]
Samsung Electronics announced on the 18th that it will launch a solution to prevent the installation of malicious voice phishing apps on smartphones. Officials said that a new security soluti...[Details]
When measuring small-sized samples, the SuperViewW1 white light interferometer can measure 12mm or even smaller sizes. The standard travel of the XY stage is 140*110mm. The local displacement accurac...[Details]
12m crystal ----- pll ------ cpu
Mux Multiplexer
Div Divider
The sample code is as follows:
Assembly Implementation
.globl clock_init
clock_init:
/* 1...[Details]
A Bode plot with three poles and one zero will be used to analyze the gain and phase margin. Assuming a DC gain of 80dB, the first pole occurs at 100Hz. At this frequency, the slope of the gain curve...[Details]
For Qualcomm, they are already developing processors after Snapdragon 888. What is it like? Now news about the upgraded version of Snapdragon 888 has begun to leak. From the exposed situatio...[Details]
RF/Wirelessly
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