S32K3 Bootloader

[vinaykl]

Hello NXP Team,

We have an S32K312 EVK with us. We want to implement bootloader for our EVK. As you mentioned in S32K144 is it possible to use A/B Swapping technique for S32K3 also? And if you have any bootloader and gateway examples kindly share here. 

Thanks and regards

Vinay

[lukaszadrapa]

Hi @vinaykl 
Yes, there's HW support for AB swap on S32K3 devices. You can take a look at "S32K3XX HSE and OTA Advance Training" (pages 59 - 86) which can be found in section Documentation -> Secure files on S32K3 page:
https://www.nxp.com/products/S32K3

The AB swap is performed by HSE service, so it's necessary to have AB swap version of HSE firmware installed. You can take a look at this post how to run the HSE service:
https://community.nxp.com/t5/S32K/s32k3-flash-swap-requirements/m-p/1920123/highlight/true#M38475

Currently there are two OTA Demo applications. You can find it in S32K3 Reference Software package:
https://www.nxp.com/webapp/swlicensing/sso/downloadSoftware.sp?catid=SW32K3-REFSW-D
Search for "Automotive SW - S32K3 - OTA Demo".

Regards,
Lukas