Book: Section 3B: Portability

[jamesmunns]

How can use of Rust improve portability between Projects, Targets, or even Operating Systems?

[TotalKrill]

I would really like to see some more graphical representation on how the different crates are thought to interact with the software, also some recommended guidelines for naming the crates so they are more easily found on crates.io. Example:
device crates should end with *-device, and board crates should end with *-board, driver crates should end with *-driver.

A graphical representation that basically says:

• Device crate = MCU registers, peripherals, settings, timers etc
• Board crate = Where SPI, UART etc are hooked up, what oscillators are running. ( are drivers a part of the board crate?)

Similar to this picture:

[japaric]

This issue was moved to rust-embedded/book#6