Article Word Count: 7000 Practical Value: ⭐⭐⭐⭐⭐ Many people who want to learn microcontrollers ask me the first question: how can I learn microcontrollers well? Today, I will talk about how I started learning microcontrollers, how I got hands-on, and how I became proficient in this process. First, let’s talk about microcontrollers. Generally, the MCS-51 … Read more
1. Embedding Assembly Language in C In microcontroller development, we usually write the main program in C language, which allows us to fully utilize the mathematical libraries and powerful data processing capabilities provided by C language tools. However, the controllability of C language is not as good as that of assembly language. For some time-sensitive … Read more
Click the above “Chuangxue Electronics” to follow us with one click and easily learn electronic knowledge. Chuangxue Electronics Subscription Account Daily updates on electronic industry technical articles and the latest microcontroller news, learn easily anytime, anywhere. In microcontroller programming, setting a good clock interrupt can enable a single CPU to perform the tasks of two … Read more
Word Count: 9700 Practical Value: ⭐⭐⭐⭐⭐ Simple Algorithms for Counting, Summation, and Factorial These types of problems require the use of loops. It is important to determine the initial value, terminal value, or termination condition of the loop based on the problem. Additionally, pay attention to the initial values of the variables used to represent … Read more
Combining the key input program, we designed a functional program: Pressing the number keys 1 to 9 controls the motor to rotate 1 to 9 circles; using the up and down keys changes the rotation direction, pressing the up key rotates forward 1 to 9 circles, while the down key rotates backward 1 to 9 … Read more
Little Science Station 1. Overview of C51 Language 1) Advantages: C51 is a high-level programming language designed for the 51 microcontroller and is a subset of standard C language. It features strong readability, easy debugging and maintenance, and a small programming workload. It allows direct access to physical addresses, enabling direct operations on hardware and … Read more
In assembly language, there are specific instructions to output high or low levels on a certain port. Taking port P1.0 as an example: The instruction to set this port to high is: SETB P1.0 The instruction to set this port to low is: CLR P1.0 Now, we will connect a small light to the microcontroller’s … Read more
Abstract: I heard that many friends learning microcontrollers can’t use structs? Pointers and structs are essential to mastering microcontrollers. If your C language skills are shaky, you won’t grasp the essence of microcontrollers and will only complete some basic projects. Understanding structs and being able to use them flexibly indicates that you have entered the … Read more
Summary of C51 Microcontroller Programming Points 1. Header file: #include (I am using STC 89C54RD+) 2. Pre-definition: sbit LED = P1^0 // Define bit 0 of port P1 as LED Note: The notation “P1^0” is different from A51 (A51 uses P1.0). P1 is a group of ports, and the port number ranges from 0 to … Read more
In microcontroller development, many engineers choose assembly language for low-level programming to directly control hardware and execute commands efficiently. However, since assembly language interacts directly with hardware, it is easy to make mistakes. This article summarizes common errors in microcontroller assembly language based on the Keil C51 assembler environment, hoping to assist fellow engineers. 1. … Read more