unsigned char SPI_RW(unsigned char byte)
{unsigned char bit_ctr;for(bit_ctr=0;bit_ctr8;bit_ctr++){NRF_MOSI=(byte0x80); // MSB TO MOSIbyte=(byte1); // shift next bit to MSBNRF_SCK=1;byte|=NRF_MISO;// c...
What's inside a counterfeit Macbook charger? A reader sent me a charger he suspected was a counterfeit. On the outside, the charger looked like a near-identical Apple charger, but when you take the ch...
[align=left] I've been busy at work recently. I worked overtime yesterday and rested today. I'll take some time to work on it. Seeing that some forum friends have completed their projects, I'm a littl...
To meet the power demands of the RF front end, original equipment manufacturers (OEMs) are turning to gallium nitride (GaN), a relatively new commercial semiconductor material. Its power efficiency, p...
A football event came to an end. Italy won, France lost. This is how the game works. If one team wins, another team will lose . France, why did it happen to be France? Why did France lose? I just don’...
Switching power supply circuit compositionThe main circuit of the switching power supply is composed of input electromagnetic interference filter (EMI), rectifier filter circuit, power conversion circ...
According to foreign media reports, Nvidia Chief Financial Officer Colette Kress once again hinted that next-generation chip production may be outsourced to Intel. According to reports, Nvidia’s data...[Details]
According to Japanese media reports, in order to ensure the production capacity of iPhone 12, especially 12 Pro, Apple requisitioned some similar components originally supplied to iPad, which is esti...[Details]
The poster of the realme 9 Pro series mobile phone has been exposed. The product will be released overseas on February 16. The realme 9 Pro + has been confirmed by the whistleblower to be equipped wi...[Details]
The S3C2440 structure is as follows: Boot process: Most ARM chips start from address 0 1. NOR boot, NOR Flash base address is 0, on-chip RAM address is 0x40000000. The CPU reads the first instructi...[Details]
OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
On September 15, the “Everything Intelligence—Baidu World 2020” conference was held. According to China National Radio, at the Baidu Brain sub-forum that afternoon, Ouyang Jian, general manager of Ba...[Details]
Ensure that the cables used during testing meet the maximum voltage rating of the test system. Use cables that are capable of the performance required for high-voltage, low-current testing often enco...[Details]
The basic steps to light up the LED lamp using buttons based on STM32: (1) Open stm32CubeMX and create a new project file (2) Select the required chip. This experiment uses STM32F411RETx (3) Ye...[Details]
Apple Arcade is a game subscription service launched by Apple that allows users to play a series of exclusive new games online or offline on all devices they own, without restrictions, and wit...[Details]
Design of digital semiconductor laser power supply based on C8051F020
This paper takes digital integrated circuit as the core and designs a semiconductor laser power supply that can realize inte...[Details]
The standard time of WDT TIMEOUT is 18mSec, but it is very important that the minimum value of WDT TIMEOUT is 7~9mSec, and it will be affected by temperature. This value is not a test value, but a ca...[Details]
On August 17, Longteng Optoelectronics released its semi-annual report stating that in the first half of 2021, the company achieved operating income of 2.983 billion yuan, a year-on-year increase of...[Details]
Design and manufacturing method of LED fluorescent lamp power supply
I am engaged in switching power supply. I used to make adapters, chargers, and iron-shell switching power supplies. Later...[Details]
1. The existing evaluation system cannot ensure the real-time performance of vehicle identification For autonomous vehicles, identifying obstacle vehicles is a key technology in the autonomous vehi...[Details]
Apple today released the official version of tvOS 15.5 (19L570), which is the fifth major update of the tvOS operating system. tvOS 15 was first launched in September 2021. tvOS 15.5 was releas...[Details]
Microcontroller MCU
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