The serial port is not connected, what's going on? ? ? ? ? ? ? ? PERCFG = 0x00; //USART1 is position 1 P0SEL |= BV(4) | BV(5); //Configure P0.4 and P0.5 as peripherals, not GPIO P2SEL |= BV(6); //Func...
Hello, fellow electronics colleagues! I have never been able to fully master the design of analog filters with op amps, and I usually just use simulation tools. I would like to ask two questions: How ...
Recently, when I was evaluating the hardware timer, I found that timer1 could not be found. However, it was confirmed to exist using list_dedvice, and the timers that should be enabled were also enabl...
[i=s]This post was last edited by 1nnocet- on 2019-7-22 10:23[/i]This content is originally created by EEWORLD forum user 1nnocet- . If you want to reprint or use it for commercial purposes, you must ...
I need help from you guys, the development board STEVAL-IDB007V1 uses USB micro to connect to PC-USB, but the serial port is not recognized in the device manager...
Theoretically, the on-time of SVPWM tube is X=sqrt(3)Ubeta*TS/Ud; Y=sqrt(3)Ubeta*TS/Ud+3Ualpha*Ts/Ud; Z=sqrt(3)Ubeta*TS/Ud-+3Ualpha*Ts/Ud; ---------------------------------------------（1） Ualpha=Umsin...
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Common error types
PLCs of all brands have a self-diagnosis function, but the trick to PLC repair is to make full use of this function to analyze and then accurately find the problem...[Details]
Question: A ball falls freely from a height of 100 meters. Each time it lands, it bounces back to half of its original height. When it falls again,
how many meters has it traveled when it lands f...[Details]
In a wide range of low-power applications such as USB adapters, mobile phone chargers, and system bias supplies, low-cost quasi-resonant/discontinuous-mode flyback converters are a popular choice (...[Details]
1. First, you need to write u-boot to the SD card and boot from the SD card.
Use a card reader to insert the SD card into the computer, use umount to unmount the USB drive, and fdisk -l s...[Details]
In the context of the booming domestic new energy electric vehicle industry, smart cars have become the first choice for consumers. In the purchase process, consumers pay unprecedented attention to...[Details]
Chip heating
This is mainly for high-voltage driver chips with built-in power modulators. If the chip consumes 2mA of current and a voltage of 300V is applied to the chip, the power consum...[Details]
Recently, Naxin Micro announced the launch of the automotive-grade CAN SIC (Signal Improvement Capability) NCA1462-Q1 based on its self-developed innovative ringing suppression patent. NCA1462-Q1 i...[Details]
1 Introduction In actual radio and television transmission work, the entry test of new transmitters and the daily indicator test of transmitters all involve audio testing. The audio spectrum anal...[Details]
According to foreign media reports, Showa Denko will make a public acquisition of Hitachi Chemical, a subsidiary of Hitachi, in mid-December, with an estimated acquisition amount of 900 billion yen. ...[Details]
Since June, China has seen a large-scale, long-lasting high temperature weather process, with temperatures in some areas reaching over 40 degrees Celsius and high temperature warnings frequently issu...[Details]
Mobileye, a subsidiary of Intel (INTC), recently shared its plans to develop a self-driving car system for 2025. Tianyancha shows that Mobileye is an Israeli company that has been focusing on the ADA...[Details]
1. How to use (1) Zero adjustment. Place the meter horizontally and check whether the pointer is at the starting point of the scale before using it. If it moves, adjust the zero adjuster to return it...[Details]
Use the microcontroller timer to generate a 200Hz square wave program at port P1.0
#include reg52.h
void main()
{
P1^0 = 0; // Clear P0 port
/////////
TMOD ...[Details]
According to foreign media reports on December 12, TSMC announced in November 2021 that it would establish a joint venture with Sony Semiconductor Solutions in Kumamoto Prefecture, Japan, and build a...[Details]
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