Rust Embedded for STM32 Microcontrollers: I2C protocol

The sixth video of the Rust Embedded course.

In this video you will learn:

* What is I2C protocol.

* The order of operations in I2C protocol.

* The most important features of I2C protocol.

* How to read data from the LSM303 magnetometer located on the F3Discovery board.

* How to make sure that you I2C communication is functional.

* What is open-drain and pull-up resistor, and how to find them on electrical schematics.

* How to use reference manuals of external sensors.

References:

* Rust Discovery Book - Chapter 14 - I2C (https://docs.rust-embedded.org/discovery/f3discovery/14-i2c/index.html)

* Understanding the I2C bus by Texas Instruments (https://www.ti.com/lit/an/slva704/slva704.pdf)

* LSM303AGR (https://www.st.com/resource/en/datasheet/lsm303agr.pdf)

* LSM303DLHC (https://www.st.com/resource/en/datasheet/lsm303dlhc.pdf)

* F3Discovery electrical schematics (https://docs.rs-online.com/5192/0900766b814876f9.pdf)

Timeline:

0:00 - Intro

0:41 - Basics of I2C

2:16 - LSM303 magnetometer sensor

3:12 - Important I2C features

5:04 - Reviewing crate documentation

5:40 - Reviewing I2C example from documentation

7:25 - Building our own I2C solution

9:20 - Testing the solution

10:32 - LSM303 reference manual

11:08 - Differences across STM32 HAL crates

12:00 - Outro

#rust #embedded #google