本篇博文简要介绍UART、I2C、SPI串行总线通信原理。更详细的说明请看以下三篇文章。 一文搞懂I2C总线通信 一文搞懂SPI通信协议 I2C (Inter-Integrated Circuit) 通信协议是一种多主从架构的串行通信总线，有两根双向的信号线：一根数据线SDA用于收发数据，一根时钟线 ...

I2C(Inter-Integrated Circuit)总线(也称 IIC 或 I2C) 是有PHILIPS公司开发的两线式串行总线，用于连接微控制器及外围设备，是微电子通信控制领域广泛采用的一种总线标准。它是同步通信的一种特殊形式，具有接口线少、控制方式简单、器件封装形式小、通信速率较高等 ...

Figure 1 shows a typical converter schematic. The I2C bus is connected to PIN5 and PIN6, and the SPI bus is connected to PIN9, PIN10, PIN11, and PIN12. PIN8 is used to control the transmission ...

The I2C Bus – From Humble Beginnings to New Uses The simplicity and low cost of the I2C bus has enticed electronic engineers to find more uses for the two-wire Inter-Integrated-Circuit protocol, and ...

If you’ve ever debugged a misbehaving I2C circuit, you probably know how frustrating it can be. Thankfully [Jim] over at Hackaday.io, has a proto-boardable circuit that can help! Inter-integrated ...