Question 1: When performing trigonometric operations, which method is faster? I am currently using cossp in c67fastMath downloaded from the official website, but the time it takes is about six times t...
Program function: Configure GPIO12 as interrupt input. When the button is pressed, a falling edge interrupt is triggered, and the interrupt service subroutine flips the LED.
Interrupt vector tableMain...
The Political Bureau of the CPC Central Committee held a meeting on May 31, which pointed out that further optimizing the birth policy and implementing the policy of allowing a couple to have three ch...
For a switching power supply engineer, PCB drawing is actually a crucial part that affects a product. If you cannot do a good layout, the entire power supply may not work properly, and the smallest pr...
NUCLEO_G431RB ReviewPlatform constructionI tried MDK514 before and found the same problem as http://bbs.21ic.com/icview-2861476-1-1.html?ordertype=1, so I downloaded the latest version of MDK528A dire...
On the 15th, the board of directors of Innolux, a panel manufacturer under Hon Hai, resolved to buy back 80,000 treasury shares within two months starting from the 16th. In just three days, 42,630 sh...[Details]
In any industry, it is inevitable to see a group of trolls, complaining about the bad guys in the industry and the hard-working people in the profession. Recently, I have seen a lot of people working...[Details]
Bare wire testing is essential With the advancement of technology, you might think that simple test equipment based on bare wire (two or more conductors in a sheath that carry power and/or low-sp...[Details]
According to Reuters, Jean-Marc Chery, CEO of European chip giant STMicroelectronics (ST), said on the 29th that the global chip shortage will continue until 2023. In an interview, Chery said, "The c...[Details]
The watch battery tester described in this article uses a non-contact method to sense the driving pulse of the second hand of an electronic watch. It does not need to open the back cover of the wat...[Details]
During the measurement process, some DUTs are very sensitive to noise in the DC power input, which directly affects the accuracy of the test data and even whether the test can be carried out. So how t...[Details]
Using an oscilloscope to detect ECU EMI interference When doing electromagnetic compatibility (EMC) testing, you usually think of radiated emissions testing with a spectrum analyzer. But oscilloscop...[Details]
In recent years, almost every March, the Central China region has been plagued by power shortages. This seasonal power shortage is not due to insufficient installed capacity, but to a shortage of powe...[Details]
Working principle of PIC microcontroller's 4×4 column keyboard:
(1) Principle of single chip computer system keyboard
The connection method of the column keyboard is more compli...[Details]
IU86751E is a 2x28W stereo; in the case of monophonic use; it can output up to 50W of high-efficiency Class D audio power amplifier circuit. Advanced EMI suppression technology allows the use of ch...[Details]
In an independent solar power generation system, in order to reduce costs, improve efficiency and reliability, it is necessary to make the photovoltaic cell output maximum power, charge and disch...[Details]
Recently, according to official news from Tesla, the Model 3 Standard Range Upgrade Edition made in China will arrive at Tesla offline stores today, and consumers can make an appointment for a test d...[Details]
Preface
According to the requirements of different car manufacturers and countries, the differences in narrowband electromagnetic radiation interference tests for automotive electronic products ...[Details]
Servo hydraulic press is a hydraulic device that uses a servo motor to drive a hydraulic pump to achieve precise control of pressure, speed and position. It is widely used in metal forming, plastic...[Details]
DSP and ARM Processors
京公网安备 11010802033920号
EEWORLD
