I beg all masters and seniors to see where the circuit is configured incorrectly. The current problem is that there is a leakage of 4~5mA when the load (voice chip) is connected.Please give me some ad...
[size=4] The TMS320C2X/C5X fixed-point processor has two types of memory: program memory and data memory. The program memory mainly contains executable program code, while the data memory mainly conta...
I have done a lot of operations before. At some point, I executed catkin_make under catkin_ws. I did not compile the workspace. It was done. BUILD_SHARED_LIBS is on. Many packages should be scanned la...
Quote:After making the world clock, we have to return to our original intention. We found that, like the previous electronic works, the extended use of OLED modules will use different related software...
Some people's board audio source is output through the audio decoding chip ES8323. I directly connect it to the 5V speaker and the sound is very small.
If I want to continue using 5V speakers, is it f...
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Abstract: This paper compares the high-frequency switching power supply system and the thyristor phase-controlled power supply system from five aspects, including working princi...[Details]
Recently, Erdao District of Changchun City signed a contract with Jilin Tongxin Integrated Circuit Materials Co., Ltd. to connect the third-generation semiconductor industrial park project and jointl...[Details]
Researchers have developed a new type of lens that uses a spiral surface to maintain sharp focus at different distances and in different lighting conditions. Image credit: Laurent Gallinier...[Details]
The phase-shifted
full
-bridge PWM converter is one of the most commonly used medium-to-high power DC/DC converter
circuit
topologies. The phase-shifted PWM
control
method u...[Details]
Amid the 5G dispute, some undercurrents may be more worthy of attention. According to media reports, in late July 2019, OPPO and Intel signed a patent transfer agreement, in which 58 core patents cov...[Details]
Jiwei.com reported on March 18 that Feng Yufei, president of iQOO brand, published a long article yesterday announcing that iQOO has become the official sponsor of the Chinese national rowing and can...[Details]
According to foreign media reports, a team from the CMT-Thermal Institute of the Polytechnic University of Valencia (UPV University) in Spain has proposed a new architecture that is working to achiev...[Details]
The latest analysis from market research firm Counterpoint points out that the Huawei incident will affect the foldable smartphone market, and market research firm Counterpoint has therefore lowered ...[Details]
Introduction: Some simple routines in ARM development Calculate the absolute value of r1 and r2 The corresponding C pseudo-instructions are: if ( r1 r2 ) r0 = r1+r2; else r0 = r1-r2; The corres...[Details]
Can NOP+ charges be bypassed? On NIO Day in 2021, with the release of ET7 at that time, NIO was the first to announce an intelligent driving subscription service: NAD, with a monthly fee of 680 yua...[Details]
Recently, the district’s first electric sanitation vehicle charging station, built by the Pinggu Branch of the power supply company, was officially handed over and put into use. Next year, electric...[Details]
On April 28, State Grid Gansu Construction Branch held a breakthrough ceremony for the first section of the Gansu section at the N3286 tower site of the Qinghai-Henan Project Gansu Section 5.
...[Details]
On Tuesday local time, Stellantis Group and CATL simultaneously announced that the two parties had signed an agreement covering battery supply, establishment of joint ventures, and technical coope...[Details]
When it comes to low power consumption, engineers seem to be not satisfied with the data in the product manual, but want to know how the lowest power consumption MCU is designed and developed. At the...[Details]
Last time, I finished reading the boot assembly and prepared the C operating environment. Now I will start to learn the C source code and jump from the start.S file to the file
lib_arm/board.c ...[Details]