I like embedded systems more, but I don't work in this field. I can only learn by myself (protocol stack) as a hobby. Now I am familiar with UCOS2 system, can read source code, and understand task mec...
[code]UART3Init(); RS485_SendByte(0x00); Delay2(10); hh[0]=0x66; MYDMA_Config(DMA1_Channel3,(u32)&USART3->DR,(u32)hh,1);//DMA1 channel 3, peripheral is serial port 3, memory is hh, length 1 USART3->CR...
I would like to ask for help from all the experts. I am recently debugging a board and need to export the data of an array of 1000 in the program. However, I have searched for a long time and cannot f...
The ism frequency band in Europe and North America is mainly 900M. I wonder if anyone has considered or made a 900 zigbee module? Please introduce it....
Original title: ESP8266 Guide: Role, Function and Development Approach [url]http://makerpro.cc/2015/08/esp8266-guideline/[/url] [p=26, null, left][color=rgb(51 , 51, 51)][font=Raleway, Arial, sans-ser...
This is my first post on ee. I hope to share and learn with you~ I received the express delivery on the weekend. During that time, the forum left my phone number wrong. This incident made me meet the ...
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[Details]
We know that microcontroller development tools generally include real-time online emulators and programmers. Among them, online emulators are very good tools, but they are also more expensive...[Details]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[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]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
FPGAs are used in 81% of electronic systems, including many commercial and defense products, and most FPGAs use BGA packaging. The BGA packaging is characterized by small solder balls and small sol...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]