Grade 8 English Summary of Modal Verbs Can, May, Must Point 1: Usage of modal verbs such as can, may, must in declarative sentences: 1. Usage of can: (1) Indicates ability, permission, or possibility. When indicating ability, it is generally translated as “can” or “be able to”, meaning having a certain capability, especially an inherent … Read more
CAN, short for “Controller Area Network”, is one of the most widely used field buses internationally. Initially, CAN was designed for microcontroller communication in automotive environments, exchanging information between various electronic control units (ECUs) in vehicles, forming an automotive electronic control network. For example, the engine management system, transmission controller, instrument equipment, and electronic backbone … Read more
▍Overview CAN (Controller Area Network) is a serial communication network that enables distributed real-time control. When thinking of CAN, one must think of Bosch, the German company that developed it (along with Intel). CAN has many excellent features that allow it to be widely used. For example: a maximum transmission speed of 1 Mbps, a … Read more
The modal verb has a specific meaning but cannot stand alone as a predicate. It does not change with person or number and is followed by the base form of a verb, meaning that the modal verb and the base verb together form the predicate. Common modal verbs include: can (could), may (might), must, will … Read more
When learning about in-vehicle testing, how can we not understand CAN basics? Today, I have organized a detailed note for everyone, so let’s follow along with Songqin! Understanding CAN 01 What is CAN Bus? CAN stands for Controller Area Network, which is an internationally standardized serial communication protocol by ISO. In simple terms, the CAN … Read more
Overview The CAN protocol, short for Controller Area Network, was developed by the German company BOSCH, known for its automotive electronic products, and has become an international standard ISO11519 and ISO11898. The CAN bus protocol has become the standard bus for automotive computer control systems and embedded industrial control LANs. CAN Protocol Composition The CAN … Read more
First, buy a Bluetooth module and download a Bluetooth serial debugging assistant on your phone, which is equivalent to the UART serial communication of the microcontroller. Use BUFF to obtain the received data. Here, we only need to focus on one issue, which is testing the encoding. If the APP sends 0xFF, (the APP Bluetooth … Read more
Introduction Recently, I discovered an open-source project for both embedded software and hardware on GitHub —Fast Charging Solution for Lithium Batteries Based on STM32G0, powered by a Type C charger, designed using STM32G0, it supports charging 1s – 4s lithium battery packs and includes a 2s-4s balancing charging feature. Currently, this project has been mass-produced … Read more
MCU stands for Microcontroller Unit, which is commonly known as a single-chip microcontroller. It reduces the CPU’s frequency and specifications appropriately and integrates memory, counters, USB, A/D conversion, UART, PLC, DMA, and other peripheral interfaces, even LCD driver circuits, into a single chip, forming a chip-level computer. This allows for different combinations of control for … Read more
The printf function is indispensable during microcontroller debugging, allowing developers to intuitively and conveniently obtain the current running status of the program. However, in chips like STM32, to achieve printf functionality, UART must be utilized. Is there a way to implement printing functionality solely with JLink? The answer is yes. ARM has adopted a new … Read more