Is K22 build target compatible with K21?

[francescosalvat]

Hi all,

I want to use mbed libraries on MK21DN512VLK5 microcontroller but there isn't a ready-to-use target yet. Checking on documentation and SDK seems that the only differences beetween K22 and K21 are security features, so can i use the build target for K22 to build for K21? How can i extend it to support RNG, HW encryption and Tamper detection?

Thank you.

[ivadorazinova]

Hi Francesco,

no, because MK22DN512VLK5 and MK21DN512VLK5 has two different processors.

Best Regards,

Iva

[francescosalvat]

Ok, and what are the differences beetween them?

Reading docs and comparing SDK files seems that are equals except for security implementations (CAU and RNG).

Thank you!

[ivadorazinova]

Hi Francesco.

KSDK supports K22 devices with cpu frequency 100 MHz and 120 MHz.

Please, take a look at the attached guide.

Best Regards,

Iva