Serial Peripheral Interface

Understanding the Simplicity of SPI Design for Serial Peripheral Interfaces

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Understanding the Simplicity of SPI Design for Serial Peripheral Interfaces

1. Introduction to Serial Peripheral Interface (SPI)The SPI interface (Serial Peripheral Interface) is a widely used high-speed, full-duplex, synchronous serial communication protocol between microcontrollers and peripheral devices.2. Main Features of SPIIt supports master-slave operation in both full-duplex and half-duplex modes; 16-bit width with independent transmit and receive buffers;8-bit or 16-bit data frame formats;Data bit order … Read more

How to Choose an MCU

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How to Choose an MCU

In today’s article, let’s discuss how to choose an MCU. Let me share my thought process. 1. List the peripherals If a system has multiple MCUs, we need to allocate them properly, for example, temperature sensor on MCU #1, Bluetooth on MCU #2, etc. 2. Determine the communication interfaces of the peripherals Some peripherals support … Read more

Understanding SPI Bus Hardware Protocol

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Understanding SPI Bus Hardware Protocol

Some things can only be done alone. Some doors can only be passed alone. Some roads can only be walked alone. 1. Overview SPI: Serial Peripheral Interface. It is a synchronous serial bus interface specification developed by Motorola in the mid-1980s (with clock signal, controlled by clock polarity and clock phase for sampling, that is, … Read more

SPI Interface Explanation and Principles

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SPI Interface Explanation and Principles

01 【Introduction】 SPI: Serial Peripheral Interface, is a synchronous serial interface for device communication. SPI was developed by Motorola around 1985 and is suitable for short-distance, device-to-device communication. Since then, this interface has become a de facto standard adopted by many semiconductor manufacturers, especially microcontrollers (MCUs) and microprocessors (MPUs). 02 【SPI Interface】 The SPI bus … Read more