I2C (Inter-Integrated Circuit; pronounced as “ eye-squared-see ” or “ eye-two-see ”), alternatively known as I2C or IIC, is a synchronous, multi-master/multi-slave, single-ended, serial communication bus invented in 1982 by Philips Semiconductors.

I2C总线是Philips公司在八十年代初推出的一种 串行 、 半双工 的总线，主要用于 近距离、低速 的芯片之间的通信；I2C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 SCL 用于通信双方时钟的同步；I2C总线硬件结构简单，简化了PCB布线，降低 ...

The I2C bus was developed in the early 1980's by Philips Semiconductors. Its original purpose was to provide an easy way to connect a CPU to peripheral chips in a TV-set. Peripheral devices in embedded systems are often connected to the MCU as memory-mapped I/O devices, using the microcontroller's parallel address and data bus.

2022年11月10日 · i2c通信协议是一种串行通信协议，它允许多个设备通过两根线进行通信：串行数据线（sda）和串行时钟线（scl）。这种串行通信方式相对于并行通信更为灵活，尤其适用于设备之间的短距离通信。

2024年12月13日 · 一、重要 根据前面内容我们可以知道i2c子系统有几个重要的东西： I2C总线：i2c 总线主要就是维护着两个链表——驱动、设备。i2c驱动注册时候，通过 i2c_driver 结构体内部 driver 成员挂载到总线上。i2c设备注册时候，通过 i2c_client 结构体内部device成员挂载到总线 …

I2C is a common communication protocol that is used in a variety of devices from many different product families produced by TI. This application note begins with a basic overview of the I2C protocol, describing the history of the protocol, different I2C speed modes, the physical layer of the digital communication, and the structure of the data.

The Inter-Integrated Circuit, or IIC, or most commonly I2C, is a widely chosen transmission protocol in the field of digital electronics. I2C was created in the early 1980s by Philips Semiconductors (now NXP Semiconductors) to make it easy for chips on the same circuit board to talk to each other.

2025年3月12日 · 一、重要 根据前面内容我们可以知道i2c子系统有几个重要的东西： I2C总线：i2c 总线主要就是维护着两个链表——驱动、设备。i2c驱动注册时候，通过 i2c_driver 结构体内部 driver 成员挂载到总线上。i2c设备注册时候，通过 i2c_client 结构体内部device成员挂载到总线上。

2025年1月10日 · I expect to get no warnings on startup, and to be able to use the recommended I2C drivers with my I2C devices. Actual behavior (suspected bug) The camera driver uses legacy i2c drivers, causing a warning on startup as well as …

oled_i2c 128x64 pixel OLED display library based on the SSD1306 for Arduino / ChipKit / PIC32-PINGUINO connected via I2C. Modified to work with PIC32-Pinguino based on Microchip's PIC32MX440F256H microcontroller, works fine with UECIDE: