4-wire SPI

Java SPI Mechanism: The ‘Service Dispatcher’ Hidden in the META-INF Directory

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Java SPI Mechanism: The 'Service Dispatcher' Hidden in the META-INF Directory

Core Idea of SPI Mechanism SPI (Service Provider Interface) is a service discovery mechanism that allows frameworks or libraries to dynamically load implementation classes of interfaces at runtime, achieving module decoupling and pluggable extensions. The core process is as follows: Define the interface (Service Provider Interface). Write multiple implementation classes for the interface. Register the … Read more

Do You Know That the SPI Protocol Has 4-Wire and 7-Wire Versions?

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Do You Know That the SPI Protocol Has 4-Wire and 7-Wire Versions?

Hello everyone, today I want to talk about a very common communication protocol in embedded development—the SPI protocol. However, we will not discuss its basic principles today, but rather explore a detail that many people may not have noticed: the 4-wire and 7-wire versions of the SPI protocol. You might wonder, isn’t SPI just that … Read more

Animated Diagrams | Common Communication Protocols in Embedded Systems

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Animated Diagrams | Common Communication Protocols in Embedded Systems

These animated diagrams displaying signal waveforms in electronic systems help us understand the mechanisms of transmission. 1 SPI Transmission ▲ Figure 1 SPI Data Transmission ▲ Figure 1.2 SPI Data Transmission (2) ▲ Figure 1.3 SPI Timing Signal 2 I²C Transmission ▲ Figure 1.2.1 I2C Bus and Addressing Method 3 UART Transmission ▲ Figure 1.3.1 … Read more

SPI Peripherals: The Bridge for High-Speed Synchronous Serial Communication

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SPI Peripherals: The Bridge for High-Speed Synchronous Serial Communication

In embedded systems, efficient data transmission is key to connecting processors with peripheral devices. SPI (Serial Peripheral Interface), as a high-speed synchronous serial communication protocol, has become the preferred solution for interactions with peripherals such as sensors, memory, and display modules due to its flexible configuration, full-duplex capability, and low-latency characteristics. This article will comprehensively … Read more