SP(R13)
Special registers
LR(R14)
1. When a subroutine exists, the return address of the subroutine is saved
2. When an abnormal interrupt occurs, save the return address of the abnormal mode
...
Live broadcast collection
Award-winning live broadcast: ADI's smoke detector integrated solution based on ADPD188BILive playback:Click to watchLive Documentation:
Click to downloadLive QA:
1. What is ...
I accidentally discovered that the operating voltage range of a microcontroller is 5.5V-28V. This made me very curious in an era when 3.3V is the mainstream?I know that most automotive-grade MCUs are ...
As shown in the picture, I use it on a motorcycle. The IO is connected to a 3.3V microcontroller. It works fine when it is just installed, but after two days of use, it is accidentally turned on. The ...
I won’t say who it is specifically, but I can only say that it is one of the best suppliers in the domestic industry.We used to work with suppliers in Taiwan, which are among the best in the global in...
What are the main performance indicators of integrated operational amplifiers?
Answer: 1. Open-loop differential voltage gain Aud. When there is no external component connected between the output an...[Details]
This article introduces a flyback constant voltage, constant current 75W LED driver with single-stage (single switch) PFC . The circuit is shown in the figure. The AC input voltage range is 208~277...[Details]
Why does MCU have a watchdog? With this question, let's learn about watchdogs. Even the 51 single-chip microcomputer has a watchdog, which shows that this dog has a special meaning to us. The purpose...[Details]
1. When the power is off, measure in the ohmmeter mode, use the red and black test leads to test the live wire and the ground wire. If the meter shows low resistance, it means there is a short circui...[Details]
Overview
The panoramic view system collects real-time images of the surroundings of the vehicle through four wide-angle cameras installed on the front, rear, left and right sides of the vehicl...[Details]
When writing microcontroller programs, interrupts are inevitable. I prefer to write microcontroller programs in C, which is simple and readable, but of course the program efficiency is not as high as ...[Details]
Deeply understand the various functions and working principles of oscilloscope probes The existence of the probe has expanded the application range of the oscilloscope, allowing the oscilloscope to ...[Details]
The EMI interference sources of the switching power supply are concentrated in the power switch tube, rectifier diode, high-frequency transformer, etc. The interference of the external environment ...[Details]
Today, Xiaomi CC product manager @Cici_老魏 popularized the 30W ultra-fast flash charging technology of Xiaomi CC9 Pro on Weibo. She said: "This is the first time that Xiaomi has adopted a new charging...[Details]
When you drive through multiple major climate zones within a short driving range, you have automotive engineers to thank for their work. In California, for example, the temperature in Death Valley ...[Details]
Qualcomm launches AI-powered video conferencing solution to support better and more immersive virtual meetings and collaboration, accelerating changes in future office styles Key points: • Qual...[Details]
SM6350 refers to Qualcomm's first Snapdragon 6 series 5G Soc, which adopts a 2 large core + 6 small core design, specifically composed of 2×Cortex-A77@2.426GHz+6×Cortex-A55@1.804GHz, the GPU is Adren...[Details]
First we need to understand a memory map: The flash address of stm32 starts at 0x0800 0000 and ends at 0x0800 0000 plus the actual flash size of the chip. Different chips have different flash siz...[Details]
Circular economy is an effective path to sustainable ecology: Infineon safety solutions provide strong support for industry, consumers and the environment Global resources are becoming incre...[Details]
October 17, 2024 -
At the SEMiBAY2024 "AI Chip and High Performance Computing (HPC) Application Forum" at the Bay Chip Exhibition, Xu Fang, senior vice president of Yizhu Technology, delivered ...[Details]