I made a board with STM32F103VB. I have connected the power, reset, BOOT0 and BOOT1, and JTAG ports, but not the crystal oscillator. I ran a small program with the internal 8M crystal oscillator and e...
Let me describe the problem first: Now there is a USB device with a driver disk. I need to make a client program to capture the data transmitted by the device through USB. That is to complete the comm...
I used a CF card as the boot disk and copied nk.bin to the CF card. I used the local download of loadcepc to load the nk.bin generated by the cepc option in the pb platform into the embedded memory. T...
When compiling U-BOOT, the following errors occur. What is the reason? make[1]: *** [.depend] Error 1 make[1]: Leaving directory `/root/Desktop nux/u-boot-1.1.6/cpu/arm920t' make: *** [cpu/arm920t/sta...
I want to develop an application for a WinCE platform machine, which will shut down within a specific time if the machine is not touched or clicked. If the WinCE platform is clicked or touched (touch ...
As the title says. I installed it, but it crashes when I run sysgen. The problem is that it seems that there is a conflict in the execution of PBCE.EXE. Is there any solution? Urgent!...
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
LED guardrail lights use fluorescent tubes or LEDs as light sources and continuous guardrails as carriers to form an approximately linear guardrail light strip. This article mainly introduces...[Details]
Only a small number of LED manufacturers can produce high-quality LEDs. For applications that are only used for simple indication, low-quality LEDs are sufficient. However, high-quality LEDs must...[Details]
1. Introduction
With the increasing popularity of fully automatic washing machines, consumers have higher and higher requirements for their environmenta...[Details]
1 Introduction to LED
With the development of science and technology, people have higher and higher requirements on automobile light sources. LED (Light Emitting Diode) has gradually attracted...[Details]
1 Overview
In the field of traditional lighting, the concepts and definitions of lamps and lamps are clear. Lamps and lamps have their own applicable product standards, supporting technical st...[Details]
Currently, the commonly used solar cell technologies include monocrystalline silicon solar cells and polycrystalline silicon thin-film solar cells. Production process: Monocrystalline silicon solar...[Details]
The future energy storage hotspot is not coal or iron ore, but lithium. This lightest metal in nature may be the heaviest resource in the future energy landscape. China launched an ambitious electr...[Details]
introduction
Sudan's Muglad Oilfield is a large oilfield jointly invested, developed and constructed by a four-party consortium of China, Malaysia, Canada and Sudan. It consists of 8 satellite...[Details]
Traditionally, when using PLC to control stepper motors, a dedicated stepper motor control intelligent module is usually added to the PLC, and then connected to the drive power supply to realize th...[Details]
The rotor of the brushless DC motor used in electric bicycles is composed of 30 to 40 pieces of NdFeB magnets. Since the surface magnetic field strength of NdFeB magnets exceeds 500mT, the position se...[Details]