The STM32 series microcontrollers are 32-bit microcontrollers developed by STMicroelectronics based on the ARM Cortex-M series cores, including several sub-series such as F1, F4, and F7, covering various core architectures like CM0, CM3, and CM4, which can meet different selection requirements. Among them, the F1 series, as a general-purpose type, combines rich peripherals with high … Read more
1 Introduction Direct Memory Access (DMA) is a component used by the CPU to transfer data from one address space to another without CPU intervention. Once the data transfer is complete, the CPU is notified to process the data. Therefore, using DMA can free up CPU resources during large data transfers. Typical DMA data transfer … Read more
1. Background SignificanceWith the advancement of agricultural modernization, monitoring and regulating the environment in cattle barns has become crucial for improving dairy farming efficiency. Traditional monitoring methods are not only time-consuming and labor-intensive but also difficult to achieve real-time monitoring. The environment monitoring system designed based on STM32 can monitor environmental parameters such as temperature, … Read more
Bilibili Video Link: https://www.bilibili.com/video/BV1wB5XzuEQT/?share_source=copy_web&vd_source=097fdeaf6b6ecfed8a9ff7119c32faf2 01 — Project Overview 1. Function Details STM32 Intelligent Fruit and Vegetable Preservation System Functions are as follows: STM32 microcontroller as the main control chip Environmental monitoring: monitoring temperature and humidity, carbon dioxide concentration Display function: displays current environmental parameters and mode information via OLED Control function: the system can control … Read more
1. Introduction to Frequency Counters A frequency counter is an electronic instrument used to measure the frequency of periodic signals. In the STM32 microcontroller, we can utilize the input capture feature to achieve frequency measurement. The basic principle is to calculate the frequency by capturing the time interval between two consecutive rising (or falling) edges. … Read more
1. Development Software 1. Lichuang EDA: A Domestic Light, A Design Tool Combining Software and Hardware Lichuang EDA (LCEDA) is a domestic EDA tool focused on circuit schematic and PCB design, offering both online and client versions, friendly to individuals and small to medium enterprises, with the free version meeting most development needs. Core Highlights: … Read more
Click the blue text Follow us 1. Introduction to SPI Protocol The SPI protocol, proposed by Motorola, is a communication protocol (Serial Peripheral Interface) that allows chips to communicate with external devices in half/full duplex, synchronous, and serial modes. This interface can be configured as a master mode and provides a communication clock (SCK) for … Read more
ST MCU Forum https://bbs.21ic.com/iclist-49-1.html *Reading Instructions: The following is a brief summary display, with no particular order. For detailed evaluation processes, source code, and materials, please click the original link to view. Evaluation One 1. Development Environment Setup and LED Blinking https://bbs.21ic.com/icview-3470430-1-1.html 2. Implementing Onboard Debugging Serial Communication https://bbs.21ic.com/icview-3470452-1-1.html This article implements UART serial communication. … Read more
The STM32 chip comes with an Ethernet module, which includes a MAC 802.3 (Media Access Control) with a dedicated DMA controller. It supports the Media Independent Interface (MII) and Reduced Media Independent Interface (RMII), and switches between the two interfaces via a selection bit (see SYSCFG_PMC register). It has an SMI interface for communication with … Read more
1. Introduction 1.1 Project Development Background With the continuous acceleration of urbanization, a large population is pouring into cities. Accompanying this is the rapid increase in the number of private cars, leading to a sharp rise in the demand for parking facilities, resulting in the continuous increase in the scale and number of parking lots. … Read more