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In-Depth Understanding of SPI Communication Protocol and Practical Applications with STM32 (W25Q128 Driver)

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In-Depth Understanding of SPI Communication Protocol and Practical Applications with STM32 (W25Q128 Driver)

1. Introduction to W25Q128 W25Q128 is a 128M-bit (16MB) SPI interface Flash memory chip launched by Winbond, supporting standard SPI, Dual-SPI, and Quad-SPI modes. Key features include: Operating Voltage: 2.7V~3.6V Page Structure: 256 pages/block, 16KB per block, total of 1024 blocks Supports page programming (256 bytes/page) Erase operations supported: sector erase (4KB), block erase (32/64KB), … Read more

TCAN4550 SPI-CANFD Debugging Notes

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TCAN4550 SPI-CANFD Debugging Notes

Table of Contents Standard Version and Q1 Version Schematic Diagram Physical Diagram Test Wiring Default Power-On Test STM32CubeMX Configuration Adaptation of SLLC469 Driver Library SPI Read ID Test Steps to Send and Receive CAN Messages MCAN and MRAM Configuration CAN Send Test CAN Receive Test VCCOUT Direct 5V Test Open Circuit, Short Circuit, and Busoff … Read more

SD Card? TF Card? Can’t Tell Them Apart?

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SD Card? TF Card? Can't Tell Them Apart?

01SD Card SD Card is the abbreviation for Secure Digital Card, which translates directly to “secure digital card.” It is a proprietary non-volatile storage card format developed by the SD Association for portable devices. Due to its small size, fast data transfer speed, and hot-swappable features, it is widely used in portable devices. The standard … Read more

Understanding Various Buses: A Comprehensive Guide to SPI, I2C, UART, I2S, GPIO, CAN, and SDIO

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Understanding Various Buses: A Comprehensive Guide to SPI, I2C, UART, I2S, GPIO, CAN, and SDIO

Buses, buses, they always get you tangled up. In this world, signals may be the same, but there are thousands of buses, which can be quite a headache. In general, there are three types of buses: internal buses, system buses, and external buses. Internal buses are used for interconnections between peripheral chips and processors within … Read more

SPI, AOI, and X-Ray: The Triple Guardians of SMT Production

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SPI, AOI, and X-Ray: The Triple Guardians of SMT Production

In the SMT (Surface Mount Technology) production line, the birth of each circuit board is a game of precision and efficiency. From solder paste printing to component placement, and then to soldering and curing, even the slightest flaw in any link can trigger a “butterfly effect”—leading to unstable product performance at best, or mass rework … Read more

Embedded Communication Principles – SPI Bus Communication Principles and Applications

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Embedded Communication Principles - SPI Bus Communication Principles and Applications

Click the Blue Text Follow Us Introduction to SPI SPI (Serial Peripheral Interface) is a synchronous serial communication protocol used for data transmission between devices over short distances. It is commonly used for communication between microcontrollers and external devices such as sensors, flash memory, displays, etc. SPI has the following main characteristics: Basic Principles SPI … Read more

Comprehensive Analysis of Microcontroller Communication Protocols: UART, I2C, SPI, etc.

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Comprehensive Analysis of Microcontroller Communication Protocols: UART, I2C, SPI, etc.

Hello everyone, I am XXX. Today I bring you a detailed analysis of microcontroller communication protocols, including mainstream protocols such as UART, I2C, and SPI. These protocols are the bridge for data exchange between microcontrollers and other devices, and mastering them is crucial for embedded system development. Let’s break them down one by one, and … Read more

Embedded Communication Protocol: How Many SPI Interview Questions Can You Answer?

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Embedded Communication Protocol: How Many SPI Interview Questions Can You Answer?

The above ☝️☝️☝️ is about a food-related public account, where each recipe has detailed steps and high-definition images, making it easy for kitchen novices to get started. Follow it to unlock more delicious recipes and fill your meals throughout the seasons with surprises! 1. What are the characteristics of SPI communication? SPI communication, or Serial … Read more

Common Communication Protocols in Embedded Systems

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Common Communication Protocols in Embedded Systems

Source: https://blog.csdn.net/an520 UART, SPI, and I2C are very common serial communication methods in embedded development. The underlying principles of these communications are not difficult, but many beginners struggle to learn them. Today, I will share some common low-level data transmission principles of communication. UART Serial Port UART: Universal Asynchronous Receiver-Transmitter. UART is the most common … Read more