Kinetis MicrocontrollersのトピックRe: KE1 ECC RAM Single Bit Corrrection

KE1 ECC RAM Single Bit Corrrection

sean_dvorscak — Wed, 22 Jul 2026 18:37:48 GMT

Have a few questions regarding ECC.

I am currently using the MCM_LMFAR to determine where the ECC triggered a fault and then using that address to read then write back to correct it.

Questions:

1. Does the ECC have the ability to autocorrect bits? Or do I really need to perform this read/write to address to correct?

2. If there is not autocorrect, will I need to compensate for byte alignment when performing my read/write correction mechanism? Currently I am performing a 4-byte read/write at the address denoted by the MCM_LMFAR. I feel like this is dangerous as I am not sure the MCM_LMFAR will always show a 4-byte aligned address.

Re: KE1 ECC RAM Single Bit Corrrection

Celeste_Liu — Thu, 23 Jul 2026 04:09:01 GMT

Hello @sean_dvorscak ,

Thank you for your post.
Could you please let me know which specific device in the KE1 family you are using?
This will help me locate the relevant documentation more accurately or perform validation using the same device.

Celeste

Re: KE1 ECC RAM Single Bit Corrrection

sean_dvorscak — Thu, 23 Jul 2026 16:24:57 GMT

It's a KE18F512VLH16.

Thanks for your help.