Source | Roof Ridge Sparrow | strongerHuang There are many methods for microcontrollers to drive LCDs, and many accompanying examples are available online. However, among the thousands of examples online, which one is your “no.1”? Today, I would like to share an approach to driving LCDs with microcontrollers in an object-oriented manner. Overview of LCD … Read more
RISC-V is an open standard instruction set architecture (ISA) conceived by developers at the University of California, Berkeley in 2010 and is continuously evolving. RISC in RISC-V stands for Reduced Instruction Set Computer, which means it is designed to simplify each individual instruction given to the computer. Since RISC-V is an open standard, anyone can … Read more
Many people believe that the open-source RISC (Reduced Instruction Set Computing) architecture will determine the future of chip design and the development of new technologies like next-generation artificial intelligence. RISC-V is an open standard developed through international cooperation, and participating in such international standards is thought to help companies maintain greater control over their intellectual … Read more
In today’s article, let’s discuss how to choose an MCU. I’ll share my thought process. 1. List the Available Peripherals If a system has multiple MCUs, we need to allocate them properly, for example, temperature sensor on MCU #1, Bluetooth on MCU #2, and so on. 2. Determine the Communication Interfaces of the Peripherals Some … Read more
When it comes to microcontrollers (MCUs), the first thing that comes to mind is that they have many input/output (I/O) ports, which can be difficult to distinguish. As the core of embedded systems, they can communicate with external devices or sensors. However, the presence of I/O ports often makes learning challenging for many people. This … Read more
Click the blue text to follow us 1. Overview of Microcontroller Serial Expansion The methods for implementing microcontroller serial expansion include commonly used serial bus standards such as: I2C bus, Serial Peripheral Interface (SPI), and Universal Serial Bus (USB). This chapter will focus on the I2C bus. 1. Implementation through dedicated serial standard bus (1) … Read more
This article aims to validate the usage of the STM32 SPI interface using the W25Q16 storage chip. ●About Flash Chips 1. When writing to flash, it can only change from 1 to 0; during erasure, all bits become 1. 2. The minimum write unit for flash is a page; individual bytes cannot be written. 3. … Read more
Previously, when using STM32’s SPI to control many external chips, there was only one chip select for a single SPI peripheral. How can we achieve independent chip selection for one master and multiple slaves? SPI Bus Topology Generally, the SPI bus is connected as shown in the figure below, with one master and multiple slaves. … Read more
●SPI Bus 1. What is SPI SPI is the abbreviation for Serial Peripheral Interface, which is a serial peripheral interface. SPI is a high-speed, full-duplex, synchronous communication bus that occupies only four pins on the chip, saving pin space and providing convenience for PCB layout. Due to its simplicity and ease of use, more and … Read more
Electronics Association Maker Lab SPI stands for Serial Peripheral Interface. It is a high-speed, full-duplex, synchronous communication bus widely used in communication with ADCs, LCDs, and other devices connected to MCUs, characterized by its speed. SPI Protocol Like IIC and serial ports, SPI also has its communication protocol, which is generally learned in a layered … Read more