W25Q128

An In-Depth Look at the SPI Communication Protocol and Practical Applications with STM32 (W25Q128 Driver) – Theoretical Part

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An In-Depth Look at the SPI Communication Protocol and Practical Applications with STM32 (W25Q128 Driver) - Theoretical Part

1. SPI Communication Protocol: The High-Speed Dialogue of Electronic Devices SPI (Serial Peripheral Interface) is a commonly used synchronous serial communication protocol between electronic devices. Due to its high speed and full-duplex characteristics, it is widely used for communication with peripherals such as memory and sensors. 1.1 Basic Principles (Four-Wire Interaction) SCK: Clock signal line … Read more

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