iMX RT. New Cortex M7

[patacongo]

I think the porting effort would be close to trivial.  Most of the NXP/Freescale family members are supported now and the Cortex-M7 support is mature.

[andyturk]

I think the porting effort would be close to trivial.  Most of the NXP/Freescale family members are supported now and the Cortex-M7 support is mature.

Porting NuttX? A friend of mine spent some time trying to get NuttX to work. The first speedbump was that it (apparently?) requires a customized toolchain. So off-the-shelf GCC or your garden variety IDEs won't work. I don't think he was pleased with the support/doc either.

I've never tried NuttX myself, and YMMV.

[mac.6]

Running nuttx is already non-trivial on supported board (to have something that work outside basics). So I guess porting it to new architecture/board is far from trivial.

[patacongo]

> I am planning the NuttX port now.

That port is complete and functional but still undergoing test now.  The next phase is more extended driver development.

> Porting NuttX? A friend of mine spent some time trying to get NuttX to work. The first speedbump was that it (apparently?) requires a customized toolchain. So off-the-shelf GCC or your garden variety IDEs won't work.

Like so much that you see on the Internet, that is complete misinformation.  I and most people use the ARM Embedded Toolchain.  There is a custom NuttX toolchain, but its use is purely optional

[drojf]

If anyone's still watching this thread, the I.MX 1020 series and evaluation boards are out (at least on Digikey) now. This is the variant in the LQFP100/144 package with lower specs.

I'm not sure when they came out - may have been just recently or a month ago.

[luiHS]

 
The RT1020 evaluation board is available from the middle of last month, I bought mine on June 14 at Mouser.

And recently it was possible to buy the RT1020 microcontroller in LQFP100, I bought the first units from Digikey on June 26, although it is currently available in more distributors like Farnell, and soon in Mouser. It is not known yet when the LQFP144 will be available.