I found that whenever I execute the ioremap function in the interrupt service routine, an error message will be displayed: “able to handle kernel NULL pointer dereference at virtual address 00000000” ...
Editor's Note: Qorvo has launched a series of technical science documents. In this series, we will talk about the recently popular UWB. In this chapter, we introduce how positioning technology started...
Today is Arbor Day. I wish you all a happy holiday.
These days, "I owe so many trees" has become a hot topic. I heard that the country advocates that everyone should plant 3-5 trees every year. Have y...
I use lcd1602 and ds1302 to write a clock program. I want to use infrared remote control to adjust the time and make it flash. However, it does not flash after detecting the infrared signal. If any ex...
[color=#000][font="][size=12px]As shown in the figure, this is the UC3842 flyback power supply I made. The measured ESR zero frequency is 1446.86HZ. The right half plane zero 4.5MHZ is far away so it ...
The problem of dynamic sealing of equipment always exists with the operation of the equipment. Today, we have specially sorted out the various commonly used sealing forms, usage scope and character...[Details]
Nios II is a configurable 16-/32-bit RISC processor. Combined with a rich set of peripheral-specific instructions and hardware acceleration units, it provides a highly flexible and powerful SOPC sy...[Details]
In recent years, the government has increasingly supported electric vehicles, and the number of electric vehicles has increased. Observant drivers will notice that there are many more green license...[Details]
In mobile technology, sensors are the primary input for measured signals and form a component of a sensor system. They include sensitive and transducer elements connected to carriers and circuits. ...[Details]
As AI accelerates across industries, the demand for data center infrastructure is also growing rapidly.
Keysight Technologies, in collaboration with Heavy Reading, released the "Beyo...[Details]
Learned the following information.
Customer product: industrial computer motherboard
Glue application area: CPU/BGA filling
Glue color requirements: black or t...[Details]
Linear motor modules have become the "sweet spot" in various fields due to their advantages such as long stroke, fast speed, high precision, smooth operation and long life. Different models of line...[Details]
Common methods for troubleshooting roller press bearing wear include repair welding, thermal spraying, brush plating, and scrapping and replacement. However, these methods are often subject to asse...[Details]
There are more and more electric vehicles. Recently, I have heard some news about electric vehicles performing poorly in winter. I would like to briefly introduce whether heat pump technology is mo...[Details]
Renesas Electronics' new ultra-low-power RA4C1 MCU features advanced security and a dedicated peripheral set, making it ideal for metering and other applications.
The new product mee...[Details]
The mobile computing market is rapidly evolving, and manufacturers are fiercely competing for market share. A key area of competition is battery life, which encompasses two key aspects: how long th...[Details]
introduction
As core electronic components used in vastly different fields, automotive-grade chips and mobile/consumer-grade chips exhibit significant differences in their...[Details]
The Radxa Cubie A7A is a single-board computer (SBC) powered by the Allwinner A733 octa-core Cortex-A76/A55 SoC, equipped with a 3 TOPS AI accelerator and up to 16GB of LPDDR5 memory.
Fo...[Details]
On August 19, Reuters reported that people familiar with the matter said that Nvidia is developing a new AI chip based on its latest Blackwell architecture for the Chinese market. The performance o...[Details]
Mathematical functions are very important and are used in many situations such as analog quantity processing and PID control.
(12) Calculate sine value instruction (SIN)
The "Calculate Si...[Details]
Microcontroller MCU
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