Many systems require low-power supplies in addition to the main power supply. A typical example is when the analog front-end amplifier requires ±5V power, but the main digital circuitry only requires ...
Altium Designer single-select and checkbox disproportionThe right side of the dialog box is also missing, no matter how long it is stretchedI suspect it's related to WIN10 or the high-resolution scree...
As shown in the figure below, if there is no resistor R3, then when the voltage at point A (i.e. Vin) is greater than (VT1+Vbe), the PNP will be turned on. If resistor R3 is added now, the voltage on ...
[color=#333333][font=Arial]The bottom row is connected to GND, and the others are connected to IO. When scanning the keys, set the first row to 0, scan the first column, set the second row to 0, scan ...
The newcomer took over an old circuit and did not understand the testing principles of the fixture.
1. CN1 and CN2 will be connected to the DGND of CN1_1 and CN2_2 respectively (the DGND of the fixtur...
Selection of inductors and magnetic beadsAuthor: Electronic Bugs [ Print ][ Return ]In the PCB circuits of electronic devices, a large number of inductive components and EMI filter components are used...
Data shows that the pre-order volume of Samsung's new foldable phone Galaxy Z series is 10 times that of the previous series, surpassing the existing flagship products Galaxy S and Galaxy Note series...[Details]
With the continuous expansion of LED downstream application market demand and the transfer of the global LED industry to mainland China, mainland China has now become the world's largest LED device p...[Details]
Yesterday afternoon, Huawei held a press conference in Shanghai and officially released the Chinese version of its Mate 30 series. Among them, Huawei Mate 30 5G and Mate 30 Pro 5G will be officially ...[Details]
Recently, at the "New Infrastructure" Cybersecurity Forum held by Qi'anxin Group, Gao Kunlun, deputy director of the Global Energy Internet Research Institute, said that as various emerging technol...[Details]
Using the BRR and BSRR registers, you can easily and quickly implement operations on certain specific bits of the port without affecting the status of other bits.
For example, if you want to quickly ...[Details]
STM8L watchdog: (1) Use the internal low-speed clock (LSI): 38K, and set the frequency division of 4-256, so the time can be set to 0.1ms-1724.63ms; (2) IWDG_KR = 0XCC to enable, IWDG_KR = 0XAA t...[Details]
IT Home reported on March 2 that Meizu will release the Meizu 18 series 5G dual flagships at 14:30 on March 3. Meizu has been constantly promoting the new phone recently, and today the official...[Details]
Xiaomi True Wireless Noise Cancelling Earphones 3 will be officially released tonight, supporting three levels of adjustable noise reduction. Today, Xiaomi officially preheated that the he...[Details]
ARM IMPORT Image$$RO$$Limit meaning IMPORT |Image$$RO$$Base| ; Base of ROM code IMPORT |Image$$RO$$Limit| ; End of ROM code (=start of ROM data) IMPORT |Image$$RW$$Base| ; Base of RAM to initialise I...[Details]
1 Introduction
In recent years, with the rapid development of communication technology, fixed-line telephones have become increasingly popular in rural areas of my country. Telecommunications ...[Details]
Two days ago, I debugged the EXTI interrupt program. The program was very simple and copied the examples on the Internet. At first, the debugging was normal and it could run normally. But after I adde...[Details]
The development of wearable electronic systems, whether biometrics, communications or virtual reality, extends the concept of embedded systems to new and unknown areas. Putting sensors and output d...[Details]
1. Encryption principle description
The LPC2100 series ARM7 microcontroller is the world's first ARM chip that can be encrypted. The method of encrypting it is to set the specified dat...[Details]
Mouser Electronics now sells Samtec Flyover QSFP cable system February 1, 2023 – Mouser Electronics, an industry-renowned New Product Introduction (NPI) distributor offering an ultra-rich range ...[Details]
6410 Development Board:
1.uboot entry:
To see the entry of the uboot project, first open the Makefile in the top-level directory:
The development boards supported by Uboot will...[Details]
Power technology
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