Today, I encountered a problem with the callback function-based lwip without an operating system. The constant string tcp_write+tcp_output can be sent out, but the variable character array or pointer ...
Many peripheral chips are connected to the main chip through the i2c bus, and the main chip sends commands through i2c to initialize the peripheral chips.I.MX5x has at least 3 peripheral chips that ne...
Questions: Hardware and software access USB RAM buffer at the same time, causing data to be messed up or lost.The process of causing garbled code:1. Software sets USB Valid2. Turn off the general inte...
How to design an SD card based on NIOS Ⅱ? Designing with SOPC bulider and NIOS II is a combination of hardware and software. SOPC builds the SD card controller (hardware), and NIOSS II writes the corr...
This is my first time using PIC chips, and there are still many things I don't understand. The manual only has a short description of low power consumption, which is not very clear. If I can't use sle...
[color=black][font=宋体][size=10pt]Hello experts, I have transplanted [/size][/font][/color][color=black][font=Monospace][size=10pt][font=新宋体]ucgui[/font][/size][/font][/color][color=black][font=宋体][siz...
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
Google's driverless technology is not only an eye-catching technology, but also a subversion of the car usage model.
Those who have watched anti-terrorism films and TV dramas must have been im...[Details]
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[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]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
Overview
As a remote network communication control method with advanced technology, high reliability, complete functions and reasonable cost, CAN-bus has been widely used in various automa...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[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 lighting: Basic circuit design can be completed in as little as one day
Semiconductor manufacturers are also getting involved in the LED lighting business. The power circuit of LED req...[Details]
The ARINC429 bus is one of the most commonly used communication buses between various subsystems of avionics. As the "skeleton" of modern avionics systems, once the bus system or the attached airbo...[Details]
1 Development of LED Film and Television Lighting
1.1 The significance of developing film and television lighting
Lighting power consumption accounts for a large proportion of the total p...[Details]
introduction
When it comes to the production of mobile phone lithium-ion batteries, the first thing that comes to mind is Japan's industrialized mechanical assembly line, NOKIO, MOTOLROLA's st...[Details]
Mobile phones, MP3s, tablet computers, laptops, digital cameras, handheld game consoles, navigation devices, etc., all these mobile devices are powered by mobile batteries, and the battery life is ...[Details]
1 Introduction
Fieldbus is a serial, digital, multi-point communication data bus between field equipment/instruments installed in the production process area and automatic control devices/syst...[Details]
Microcontroller MCU
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