Web简介：将一块esp8266设备作为从机设备，获取各种传感器信息并反馈到主机设备，这样可以节省主机io口，值得研究； 后面可以将esp8266作为主机，用uno或者stm32系列单片机作为从机设备，来拓展esp8266的io口，何乐而不为呢~; 实验代码：(在esp8266上测试iic从机代码未成功，请勿参考！ Web一、IIC背景和接线 1.1 什么是IIC. IIC（Inter-Integrated Circuit）是一个多主从的串行总线，又叫I2C，是由飞利浦公司发明的通讯总线，属于半双工同步传输类型总线。IIC总线是非常常见的数据总线，仅仅使用两条线就能完成多机通讯，一条SCL时钟线，另外一条双向数据 ...
STM32F103/i2c_slave.c at master · avislab/STM32F103 · GitHub
WebA master initiates a transfer by sending a START followed by the address of the slave it wishes to contact and a single R/W bit telling whether it wishes to read from (R/W = 1) or write to the slave (R/W = 0). After the 7-bit address and the R/W bit, the master releases the bus, allowing the slave to acknowledge the request. Web2.1 STM32 SPI Hardware Overview. the STM32 SPI interface provides two main functions, supporting either the SPI protocol or the I2S audio protocol. By default, it is the SPI function that is selected. It is possible to switch the interface from SPI to I2S by software. The serial peripheral interface (SPI) allows half/ full-duplex, synchronous ... crypto webpack
Using the I2C Interface on the STM32 Devices - VisualGDB
http://www.iotword.com/9357.html WebCreate a New Project in STM32CubeIDE. Open STM32CubeIDE and click File > New > STM32 Project. Select the Nucleo-L476RG (or your preferred board) and name your project. Stick with the C target language. In the … WebAnd make sure the interrupts are enabled. - However, to test things out, it is often much easier to work with the blocking, non-interrupt based variants of the HAL functions (i.e. … crypto web site