PDC502-CxDY04

Interrupts can be nested. The C51 MCU only supports two levels of nesting, while other MCUs can nest multiple levels. The interrupted place is called a breakpoint. The source that causes the CPU to ...[Details]

The previous two articles introduced the bootloader and kernel running on the mini2440 development board. At this point, the system is actually stuck in a "dead" state after startup - the root file s...[Details]

　　A gas sensor is a device that can convert information about the type of gas and its concentration into electrical signals. Based on the strength of these electrical signals, information about the pr...[Details]

1. Use cubeMX software to initialize the ports and resources needed by the program. In order to keep the program simple, only one serial port and one general timer are used here. (1) Pin initializati...[Details]

The linux-2.6.34 kernel has been released, so I downloaded it and compiled it. There is basically no need to modify it. I just need to modify two lines of Makefile ARCH ?= arm CROSS_COMPILE...[Details]

　　 introduction 　　After the advent of switching regulated power supply (hereinafter referred to as switching power supply ), it has gradually replaced linear regulated power supply and thyristor ...[Details]

Wang Xing likes to write on Fanfou, especially in the evening when it is quiet and no one is around. On March 6, 2019, he posted this: "Yu Chengdong, the head of Huawei's mobile phone business, was b...[Details]

As the core of ensuring the security of my country's IC industry, EDA has always been the weakest link in my country's IC industry chain. Lack of talent is the biggest pain point of the domestic EDA ...[Details]

Common welding processes for welding robots include fusion welding, pressure welding and brazing. In order to stabilize the welding quality of industrial welding robots, manufacturers need to selec...[Details]

1 Introduction　 　　In order to ensure the stable and reliable operation of communication equipment, the role of power supply in modern communication systems is becoming more and more important. To th...[Details]

     Although there are still a few months away from the iPhone 13 series launch conference, as the release time approaches, various rumors and leaks about the iPhone 13 have frequently leaked. 　　Rec...[Details]

Just as the cell phone became a handheld computer, headphones became an audio device. From then on, personalized portable small headphones replaced the stereo that took up the entire room. As the use...[Details]

SEPIC Programmable Current Source 　　As with all switching regulator designs, the output is controlled by varying the duty cycle, or the proportion of time the switch is on (Q1, see figure). To regu...[Details]

Within the six-level automation framework of SAE International (formerly the Society of Automotive Engineers), most automakers have currently achieved partial automation of driving functions at Lev...[Details]

In both high-power and low-power power supplies , the loss of the secondary rectifier diode is a bottleneck for improving efficiency . How can we reduce the loss of the rectifier diode to an acceptab...[Details]