Microcontroller Instruction Execution Let’s consider a question: when we write an instruction into the microcontroller using a programmer, and then take the microcontroller out, it can execute that instruction. So this instruction must be stored somewhere in the microcontroller, and this place can retain the instruction even after the microcontroller loses power. What is this … Read more
Introduction Microcontrollers are quite “low-level” and “hardware” components, lacking complex data structures and intricate programming algorithms. We only need to understand and program from the perspective of how the microcontroller executes. For the average person, there is no need to delve deeply into the subject, as most of us are merely users of microcontrollers, not … Read more
Source: 21ic Electronics Network Original Author: Wang Xiaoqi MCU, DSP, and PLC are important concepts in the field of digital electronics technology, widely used in various fields. This article will provide a detailed comparison and analysis of their definitions, working principles, application areas, advantages, and disadvantages. Definition MCU (Microcontroller Unit) is an electronic product that … Read more
In the field of digital circuits, the reset function of microcontrollers is a crucial step to ensure their normal startup and operation. The reset function mainly resets the internal state of the microcontroller to its initial state, preventing issues such as chaos, runaway, or freezing during program execution, making the system ready to accept and … Read more
Can Microcontrollers Replace PLCs? Microcontrollers cannot completely replace PLCs. Although microcontrollers can achieve similar functions through programming, they are relatively less reliable and stable compared to PLCs. PLCs are widely used in industrial control and automation due to their excellent programmability, real-time performance, and stability. PLCs have several advantages over microcontrollers, which make them irreplaceable … Read more
In microcontroller technology, cycles are a very important concept. According to their types, cycles can be divided into clock cycles, machine cycles, instruction cycles, and bus cycles. Although they have different definitions and functions, they are interrelated during the operation of the microcontroller. Below we will discuss these cycles. 1. Clock Cycle The clock cycle … Read more
1. Overview of Buses The computer system is centered around the microprocessor, and all devices must connect to the microprocessor and work in coordination. Therefore, the concept of a bus is introduced in the microprocessor, where all devices share the bus, and at any given time, only one device can send data (multiple devices can … Read more
The MSP430 microcontroller is a microcontroller launched by Texas Instruments (TI) in 1996. It is a 16-bit ultra-low-power microcontroller with a Reduced Instruction Set Computing (RISC) architecture. However, many beginners are not very familiar with the MSP430 compared to other microcontrollers like the 51 and STM32. Below, we will explain the MSP430 microcontroller, hoping to … Read more
It is well known that microcontrollers are the core of embedded development. To master microcontrollers, the choice of programming language is also crucial. However, if you have explored the programming languages for different microcontrollers, you will find that most people use C language. There is even a saying that “microcontrollers cannot do without C language.” … Read more
1. Introduction Recently, I received the AI8H2K12U microcontroller sent by STC company. According to its datasheet, this microcontroller has built-in USB to serial port firmware, and it does not require USB driver installation. Furthermore, it can be paired with an external power control circuit and can work with STC’s ISP software to form the programming … Read more