Write summaries, discuss careers, and win DJI drones, Redmi tablets, Huawei headphones, and JD cards! This article is from the Breadboard Community’s “Lingdong Mini-F5333 Development Board” free evaluation activity. 【Purpose of Experience】Light up the OLED screen and learn to use I2C peripherals. 【Experimental Equipment】 MIN-F5333 Development Board OLED Display Screen 【Implementation Steps】 1. Copy the … Read more
Overview:The I2C communication interface is the most commonly used MCU peripheral in our daily applications. Initially, before the MCU had hardware I2C, I2C communication was achieved by simulating the I2C timing through GPIO ports. Later, with the introduction of hardware I2C peripheral interfaces in MCUs, the use of hardware I2C became commonplace. More importantly, it … Read more
UART, I2C, RS485… These communication protocols are commonly used, but their explanations can be ambiguous. I feel it’s necessary to organize them to consolidate and differentiate. The article is a bit long, so I suggest saving it for later reference. UART stands for Universal Asynchronous Receiver-Transmitter. The UART port refers to a type of physical … Read more
The Electronic Enthusiast Network reports (by Li Ningyuan) that the I2C bus, a well-known simple, bidirectional two-wire synchronous serial bus technology developed by Philips, requires only two wires to transmit information between devices connected to the bus. It has been widely used to connect various sensors, LCD screens, and memory. Previously, the impression of I2C … Read more
1. SPI BusThe Serial Peripheral Interface (SPI) bus technology was introduced by Motorola and is a synchronous serial interface. Most MCUs (Microcontrollers) produced by Motorola, such as the 68 series MCUs, are equipped with SPI hardware interfaces. SPI is used for full-duplex, synchronous serial communication between the CPU and various peripheral devices. SPI can simultaneously … Read more
So far, protocols like I2C, SPI, and UART remain the most commonly used communication protocols in electronic embedded devices. This article will dissect these three protocols, providing a clear and intuitive understanding of their functions, advantages, and limitations, accompanied by GIF animations. 1. I2C Protocol I2C is a serial communication protocol commonly used to connect … Read more
Follow “Chipown Microelectronics” ↑ Only Original Technical Content Currently, the application of stepper motors in home appliances and smart devices requires achieving more flexible motor control, safer motor protection, and advanced diagnostic functions at a lower system cost. As the number of end products using stepper motors increases, additional peripheral IO expansion is needed, leading … Read more
Bus applications are very widespread in the field of computers. (1) The method of transmitting information via the system bus can be divided into the following three types: 1. Data Bus 2. Address Bus 3. Control Bus (2) According to the usage range of the bus, it can be further divided into many types: such … Read more
So far, I2C, SPI, and UART are still the most commonly used communication protocols in electronic embedded devices. In this article, we will analyze these three protocols to help everyone clearly and intuitively understand their functions, advantages, and limitations, supplemented with GIF animations. I2C Protocol I2C is a serial communication protocol commonly used to connect … Read more
There has been a rumor circulating that the STM32 hardware I2C design has bugs, and it is better not to use it, as software I2C is more reliable. For a long time, to avoid unnecessary trouble, I have never used hardware I2C, mainly because software I2C is also quite convenient and can be used on … Read more