SPITX buffer sends data and RX buffer receives data for loopback test, but I didn't connect SPI_SIMO and SPI_SOMI on my hardware, how can it be correct? How does the receive buffer receive the sent da...
1. "RF Circuit Design - Theory and Application" by Reinhold Ludwig, Electronic Industry PressBook review: This is a classic work on RF. I recommend everyone who works in RF to have a copy. The content...
Open the project in μVision v5: "BLELowPowerRToS", compile and generate: "BLELowPowerRToS.bin".Use "STM32CubeProgrammer", unplug the battery first, press and hold the "ROOT" button, plug in the USB ca...
Dear experts: When I am working on the development board, I encountered an error in loading the module. I cross-compiled the .c file on the PC to generate a module called net_hook.o. Only two warnings...
I recently encountered a problem. I made a board based on the fiber optic transceiver IP175CH chip. The peripheral circuits of the IP175CH chip were designed according to the standard circuits given i...
I have a new hard disk (for a laptop, the laptop is r60e), and I can see this hard disk in the BIOS. However, when I use a normal installation disk to install the operating system, the hardware detect...
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[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. Overview
The Virtual CAN Interface (VCI) function library is an application program interface specifically provided for the use of ZLGCAN devices on PCs. The functions in the library ar...[Details]
1. Project Introduction
Shandong Dezhou Xingtai Paper Co., Ltd. is a newly built high-end paperboard production enterprise with domestic leading level established by Shandong Zhaodongfang Pape...[Details]
Nippon Electric Works and Volvo Technology Japan have developed a wireless power supply system for electric vehicles (EVs). Using this system, the two companies have successfully conducted an exper...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
0 Introduction
Wireless Sensor Network (WSN) monitors the target by deploying a large number of sensor nodes in the target area. WSN realizes the positioning and tracking of the target, determi...[Details]
1. Tips for charging UPS for the first time
After purchasing a new UPS, plug the UPS into the 220V mains power grid and charge it for at least 12 hours to ensure that the battery is fully char...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
1. Introduction
Stepper motor is a basic component that converts electrical energy into kinetic energy. It has been widely used in a variety of electromechanical equipment, such as various machine...[Details]
In some motion control systems with simple control or low cost requirements, stepper motors are often used as actuators. The biggest advantage of stepper motors in such applications is that they ca...[Details]
1 Theoretical Analysis
Ultrasonic waves
When propagating in a suspension, the ultrasonic waves that encounter the suspended particles are scattered and attenuated at the interface, an...[Details]
Workers in garment factories usually turn on the power of the sewing machine motor as soon as they get to work and do not turn off the sewing machine power until they get off work. In fact, during ...[Details]
According to a survey by the International Energy Agency, Asia and Australia used 1.65 trillion liters of oil for energy in 2004. The survey also showed that since 1990, the demand for oil has been...[Details]
Different places have accumulated certain experience in equalizing charging of battery packs, but it is difficult to master it properly. Long-term non-equalizing charging or frequent equalizing cha...[Details]