Autore: iot-it (pagina 151)

Anyone who has been in contact with the Internet of Things should often hear this word – baud rate. For engineers, this must be very familiar, but for students who are just beginning to understand the Internet of Things, it…

The difference between embedded and microcontroller development models The difference between development models Single-chip microcomputer: Most of the development is bare metal, the program size is small, and most are independently developed by a single programmer. Some complex products also…

4g dtu test, use Anxin to conduct transparent transmission test 2020-07-22 12:17:08 Azir 5 Each company’s 4G DTU configuration software on the market is different. This article takes the 4G DTU of Zongheng Intelligent Control as an example to achieve…

Introduction to the MODBUS standard over serial links and TCP/IP 2020-07-28 17:55:22 Zongheng Intelligent Control 3 The standard includes MODBUS application layer protocols and service specifications used in two communication procedures: ● MODBUS on serial link MODBUS serial links depend…

I. Introduction 1.1 Scope MODBUS is an application layer messaging protocol on layer 7 of the OSI model that provides client/server communication between devices connected to different types of buses or networks. Since its emergence in 1979 as the de…

What is a watchdog Watchdog (watch dog timer watchdog timer). What is a watchdog ? Let’s imagine this scenario: There is a dog at the door of your house. This dog will be hungry at regular intervals (for example, every…

“C Runtime” requires certain conditions, which are provided by assembly. The c language mainly requires a stack when running The relationship between C language and stack: Local variables in C language are all implemented using the stack. If our assembly…

cos'è la cache La cache è un tipo di memoria, chiamata cache. In termini di capacità: CPU《Register》Cache《DDR In termini di velocità: CPU 》Registro 》Cache 》DDR La cache esiste perché la differenza di velocità tra registri e DDR è troppo grande. La velocità...

What are link addresses and running addresses Link address and running address: may be the same or different. For position-related code, the running address during final execution and the link address given during compilation and linking must be the same,…

As a low-power wide-area network communication technology, LoRa realizes the requirements of both long-distance and low-power consumption for the Internet of Things, making LoRa technology applied in more and more fields. Faced with the networking requirements of numerous nodes in…