ISP uses communication interfaces for programming, and the boot code is written by the manufacturer and cannot be changed. IAP (In-Application Programming) refers to the ability of an MCU to obtain new code and reprogram itself, allowing a program to change the program. In application programming (IAP), the user’s application code erases/programs the internal Flash … Read more
Software Development Process: (1) Create a project, specifying the location of source files, compilation targets, memory configuration, and compilation options. (2) Add files to the project. (3) Set project options, such as compiler optimization options, memory mapping, and output file types. (4) Compile and link. (5) Flash programming, downloading the program to flash memory. (6) … Read more
🍊1. Technical Entry Difficulty: Microcontroller + RTOS is Easier to Get StartedMicrocontroller + RTOS (e.g., STM32 + FreeRTOS) Advantages: Low Hardware Resource Threshold: You can get started with a development board costing only a few hundred yuan (e.g., STM32F103), with memory requirements in the KB range, suitable for beginners. Simplified Development Process: Focuses on hardware … Read more
There are many methods for microcontrollers to drive LCDs, and numerous examples available online. However, among the thousands of examples, which one is your “no.1”? Today, I will share an object-oriented approach to driving an LCD with a microcontroller. Overview of LCD Types Before discussing how to write an LCD driver, let’s first understand the … Read more
SoftwareIntroduction Keil uVision 2 C51 is one of the high-quality software for developing applications for various microcontrollers, supporting all derivatives of the 8051 series. It integrates editing, compiling, and simulation, supporting both assembly and C language programming. The interface is user-friendly, making it easy to learn and use. Keil C51 is a C language software … Read more
SPI (Serial Peripheral Interface) is one of the most widely used interfaces between microcontrollers and peripheral ICs (such as sensors, ADCs, DACs, shift registers, SRAM, etc.). SPI is a synchronous, serial interface. Data from the master or slave is synchronized on the rising or falling edge of the clock. A common 4-wire interface is shown … Read more
Microcontroller Serial Port Communication Technology The serial interface and communication of microcontrollers are core technologies for data transmission between devices in embedded systems. 1. Basics of Serial Communication 1.Serial vs Parallel Communication Serial communication: Transmits data bit by bit, using fewer pins (14), suitable for long distances and low power consumption scenarios. Parallel communication: Multiple … Read more
Optimizing microcontroller programs usually refers to optimizing program code or execution speed. Optimizing code and optimizing speed are actually a unified contradiction. Generally, optimizing the size of the code will lead to an increase in execution time; if the execution speed of the program is optimized, it usually results in an increase in code size. … Read more
The interrupt system and timer/counter of a microcontroller are core modules for implementing real-time tasks and multitasking. 1. Interrupt System 1. Basic Concepts Interrupt: When a specific event (interrupt source) occurs, the CPU pauses the current task and executes the Interrupt Service Routine (ISR). After completion, it resumes the original task. Function: Improves CPU efficiency, … Read more
Click the blue text·Follow us Temperature Alarm Based on 51 Microcontroller (Simulation + Program + Schematic + Design Report) 01 Function Introduction Specific Functions: This product is designed using a 51 microcontroller + DS18B20 temperature sensor + LCD1602 display + transistor. 1. DS18B20 collects temperature, LCD1602 displays temperature; 2. Temperature measurement range: -55 to 125 … Read more