When I used AD software to design a 6-layer board, I found a phenomenon. My fourth layer is the POWER layer, which divides the system power supply. When I need to drill vias for network connection, I ...
I wrote a low-power program for STM32, using RTC to wake up, but I found that it never wakes up. Once I turn on DEBUG, when debugging in KEIL, if I set or stop a breakpoint, I can wake up. Strange:My ...
Since Huawei was first included in the Entity List in May 2019, the total number of Huawei subsidiaries included in the US "Entity List" has reached 152.
It's another restless night! Last night, the U...
Multifunctional debugging and testing assistant - complete PCB engineering package format description: protel99se [b][color=#ff0000] Friends who need it can directly take it to make a plate, but pay a...
(I) The compiler of c6x is "cl6x.exe". Method of use Cl6x [options] [filenames] Cl6x: Compiler Options: Compiler options Filenames: C or assembly source file Description: Compiler options are one or t...
Please help me!!! Urgent, urgent!!! :Sad: I programmed with msp430f1122, using IAR5.3 version, the emulator is from Lierda, the emulator is set to the right chip, and other settings are basically corr...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
Aromatic gases are widely present in food, medicine, cosmetics and various daily chemical products, such as snacks, liquor, spices, Chinese herbal medicines, plasters, perfumes, soaps, shampoos, et...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
Capacitance Measurement
Used to verify that capacitors meet the manufacturer's specifications. For quality control, a group of capacitors may be placed in an environmental chamber and the cap...[Details]
Introduction
Automakers are working to reduce vehicle weight to reduce CO2 emissions and improve fuel efficiency. Designers are therefore seeking new technologies and design techniques that can...[Details]
In 2012, more than half of the cars in the European, Japanese and American car markets will be equipped with color displays, navigation systems, satellite communications and other in-vehicle infota...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guangzho...[Details]
Abstract: Aiming at the needs of coal-rock acoustic emission signal monitoring system, a data acquisition circuit with 24-bit resolution and 16-channel synchronous data acquisition function is desi...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[Details]
PCB Design
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