External documentation

This page links to external documentation that might help you understand i.MX RT processors. It also links to embedded Rust documentation, which you should study if you're new to embedded Rust development.

Datasheets

i.MX RT data sheets are available as free downloads here. The data sheets are useful for understanding high-level capabilities of i.MX RT processors. Select your processor, then go to "Documentation," then "Data Sheet."

Reference manuals

i.MX RT reference manuals are available from NXP. The reference manuals describe the i.MX RT registers and peripheral capabilities, and they're the source of truth for most driver development.

To download a reference manual, go here and select your processor. Then, go to "Documentation," and scroll down to "Reference Manual." You'll need a free NXP account to access the reference manuals.

Application notes

There's many application notes (AN) for i.MX RT processors. They're available through the same documentation portal that serves datasheets and reference manuals.

Some ANs of interest are listed below.

• AN12077: Using the i.MX RT FlexRAM talks about how to configure tightly-coupled memory (TCM). It's useful information for understanding imxrt-rt.
• AN12238: i.MX RT Flashloader Use Case is helpful for understanding the i.MX RT boot image. It's also useful for understanding imxrt-rt.
• AN13264: i.MX RT1170 Dual Core Application summarizes the boot process for the second core on an 11xx processor.
• AN13148: i.MX RT1170 Low-Power Modes and AN13104: Debug and Application for i.MX RT1170 Clock and Low Power Feature describe the complexities of 11xx clock and power management.

Embedded Rust

If you're brand new to embedded Rust, read through The Embedded Rust Book. This will help you understand some of the concepts that appear throughout imxrt-rs packages. Once you've read through the book, also check out the resources listed on the front page.

Software references

If you're looking for external code references, check out

• the Zephyr Project.
• the ARM CMSIS Packs. Here's the MIMXRT1062 pack; NXP and ARM also provide CMSIS packs for the other i.MX RT variants.
• NXP's MCUXpresso SDK, available here.