For embedded systems, if there is no RTOS running, the main function main() in program development needs to use some mechanism to keep running happily forever, it has no endpoint. If you want to exit from the main function, what happens specifically is determined by the C language compiler used. 1. Introduction to the Problem … 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
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
For embedded systems, if there is no RTOS running, the main function main() in program development needs to use some mechanism to keep running happily forever; it has no endpoint. If you want to exit the main function, what happens specifically is determined by the C language compiler used. 1. The Question Raised Today, I … Read more
This article begins by introducing microcontrollers from the perspective of integrated circuits, mainly covering the pin diagram and functions of microcontrollers, as well as basic programming. First, let’s take a look at the functional block diagram of the 80C51 microcontroller. The 80C51 microcontroller belongs to the MCS-51 series and uses a 40-pin dual in-line package … Read more
The 80C51 microcontroller is a classic 8-bit microcontroller released by Intel many years ago. It is widely used in various embedded systems and integrates multiple functions such as CPU, memory, and I/O interfaces. It can connect and communicate with external devices through specific pins. This article will introduce the pins and functions of the 80C51 … Read more
Click the blue text to follow us 1. Development of the 80C51 Microcontroller 1. Development of the 80C51 Microcontroller MCS-51 is the name of the microcontroller series, which includes various chip models; the 80C51 is both the series name and a specific chip model. The early 80C51 series chip models corresponded exactly to MCS-51. They … Read more