Pros:
- High-speed: SPI communication is fast and suitable for applications that require high speed.
- Full-duplex: SPI supports full-duplex communication, which can send and receive data at the same time.
- Simple: SPI communication protocol is relatively simple, suitable for rapid development and implementation.
Disadvantages:
- Complexity of connection: SPI requires multiple wires for connection, which may increase the complexity of hardware design.
- Long distance transmission is limited: SPI transmission distance is limited, too long a line may lead to signal attenuation and interference.
- Master-slave mode limitation: SPI usually adopts master-slave mode, which limits the number of master devices and is not applicable to multi-master device scenarios.
Application Cases:
SPI is well suited for situations where fast and reliable data transfer is required, such as TFT displays, SD memory cards, and wireless communication modules. However, its effectiveness is reduced in complex systems with many slaves.
